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Posted to commits@tomee.apache.org by rm...@apache.org on 2016/06/07 11:10:40 UTC

[1/2] tomee git commit: TOMEE-1831 adding ErrorHandler to FailoverRouter

Repository: tomee
Updated Branches:
  refs/heads/master 16cc79b4d -> 28a95b71c


http://git-wip-us.apache.org/repos/asf/tomee/blob/28a95b71/container/openejb-core/src/test/java/org/apache/openejb/resource/jdbc/FailOverRouterErrorHandlerTest.java
----------------------------------------------------------------------
diff --git a/container/openejb-core/src/test/java/org/apache/openejb/resource/jdbc/FailOverRouterErrorHandlerTest.java b/container/openejb-core/src/test/java/org/apache/openejb/resource/jdbc/FailOverRouterErrorHandlerTest.java
new file mode 100644
index 0000000..f638c04
--- /dev/null
+++ b/container/openejb-core/src/test/java/org/apache/openejb/resource/jdbc/FailOverRouterErrorHandlerTest.java
@@ -0,0 +1,2163 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.openejb.resource.jdbc;
+
+import org.apache.openejb.junit.ApplicationComposer;
+import org.apache.openejb.resource.jdbc.router.FailOverRouter;
+import org.apache.openejb.testing.Classes;
+import org.apache.openejb.testing.Configuration;
+import org.apache.openejb.testng.PropertiesBuilder;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import javax.annotation.Resource;
+import javax.sql.DataSource;
+import java.io.InputStream;
+import java.io.Reader;
+import java.math.BigDecimal;
+import java.net.URL;
+import java.sql.Array;
+import java.sql.Blob;
+import java.sql.CallableStatement;
+import java.sql.Clob;
+import java.sql.Connection;
+import java.sql.DatabaseMetaData;
+import java.sql.Date;
+import java.sql.Driver;
+import java.sql.DriverPropertyInfo;
+import java.sql.NClob;
+import java.sql.ParameterMetaData;
+import java.sql.PreparedStatement;
+import java.sql.Ref;
+import java.sql.ResultSet;
+import java.sql.ResultSetMetaData;
+import java.sql.RowId;
+import java.sql.SQLClientInfoException;
+import java.sql.SQLException;
+import java.sql.SQLFeatureNotSupportedException;
+import java.sql.SQLWarning;
+import java.sql.SQLXML;
+import java.sql.Savepoint;
+import java.sql.Statement;
+import java.sql.Struct;
+import java.sql.Time;
+import java.sql.Timestamp;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Calendar;
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Properties;
+import java.util.concurrent.CopyOnWriteArraySet;
+import java.util.concurrent.Executor;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.logging.Logger;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+@Classes
+@RunWith(ApplicationComposer.class)
+public class FailOverRouterErrorHandlerTest {
+    @Resource(name = "routedDs")
+    private DataSource failover;
+
+    @Resource(name = "router")
+    private FailOverRouter router;
+
+    @Resource(name = "errorHandler")
+    private SimpleHandler handler;
+
+    @Test
+    public void test() throws SQLException {
+        { // all is fine
+            ControllableDriver.actives.add("1");
+            ControllableDriver.actives.add("2");
+            try (final Connection c = failover.getConnection()) {
+                c.createStatement();
+            }
+            assertEquals(0, handler.errors.size());
+        }
+
+        { // failover
+            ControllableDriver.actives.remove("1");
+            try (final Connection c = failover.getConnection()) {
+                c.createStatement();
+            }
+
+            assertEquals(1, handler.errors.size());
+            final Map<String, Throwable> errors = handler.errors.iterator().next();
+            assertTrue(errors.containsKey("delegate1"));
+            assertTrue(SQLException.class.isInstance(errors.get("delegate1")));
+            assertEquals("failed", errors.get("delegate1").getMessage());
+        }
+    }
+
+    private void rotate() {
+        final Iterator<FailOverRouter.DataSourceHolder> it = router.getDataSources().iterator();
+        final FailOverRouter.DataSourceHolder ds1 = it.next();
+        router.updateDataSources(Arrays.asList(it.next(), it.next(), ds1));
+    }
+
+    @Configuration
+    public Properties configuration() {
+        // datasources
+        return new PropertiesBuilder()
+
+            // router
+            .property("router", "new://Resource?class-name=" + FailOverRouter.class.getName())
+            .property("router.datasourceNames", "delegate1,delegate2")
+            .property("router.errorHandlerInstance", "@errorHandler")
+
+            // routed DS
+            .property("routedDs", "new://Resource?provider=RoutedDataSource&type=DataSource")
+            .property("routedDs.router", "router")
+
+            // delegates
+            .property("delegate1", "new://Resource?type=DataSource")
+            .property("delegate1.JtaManaged", "false")
+            .property("delegate1.JdbcDriver", ControllableDriver.class.getName())
+            .property("delegate1.JdbcUrl", "1")
+            .property("delegate1.TestOnBorrow", "true") // otherwise connections can be created without being valid depending the pool
+            .property("delegate1.validationQuery", "select 1")
+
+            .property("delegate2", "new://Resource?type=DataSource")
+            .property("delegate2.JtaManaged", "false")
+            .property("delegate2.JdbcDriver", ControllableDriver.class.getName())
+            .property("delegate2.JdbcUrl", "2")
+            .property("delegate2.TestOnBorrow", "true")
+            .property("delegate2.validationQuery", "select 1")
+
+            // error handler
+            .property("errorHandler", "new://Resource?class-name=" + SimpleHandler.class.getName())
+
+            .build();
+    }
+
+    public static class SimpleHandler implements FailOverRouter.ErrorHandler {
+        private final Collection<Map<String, Throwable>> errors = new ArrayList<>();
+
+        @Override
+        public void onError(final Map<String, Throwable> errorByFailingDataSource, final FailOverRouter.DataSourceHolder finallyUsedOrNull) {
+            errors.add(errorByFailingDataSource);
+        }
+    }
+
+    public static class ControllableDriver implements Driver {
+        static final Collection<String> actives = new CopyOnWriteArraySet<>();
+
+        @Override
+        public Connection connect(final String url, final Properties info) throws SQLException {
+            checkActive(url);
+            return new Connection() {
+                @Override
+                public Statement createStatement() throws SQLException {
+                    checkActive(url);
+                    return new Statement() {
+                        @Override
+                        public ResultSet executeQuery(final String sql) throws SQLException {
+                            return newResultSet(sql);
+                        }
+
+                        @Override
+                        public int executeUpdate(final String sql) throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public void close() throws SQLException {
+
+                        }
+
+                        @Override
+                        public int getMaxFieldSize() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public void setMaxFieldSize(final int max) throws SQLException {
+
+                        }
+
+                        @Override
+                        public int getMaxRows() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public void setMaxRows(final int max) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setEscapeProcessing(final boolean enable) throws SQLException {
+
+                        }
+
+                        @Override
+                        public int getQueryTimeout() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public void setQueryTimeout(final int seconds) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void cancel() throws SQLException {
+
+                        }
+
+                        @Override
+                        public SQLWarning getWarnings() throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public void clearWarnings() throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setCursorName(final String name) throws SQLException {
+
+                        }
+
+                        @Override
+                        public boolean execute(final String sql) throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public ResultSet getResultSet() throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public int getUpdateCount() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public boolean getMoreResults() throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public void setFetchDirection(final int direction) throws SQLException {
+
+                        }
+
+                        @Override
+                        public int getFetchDirection() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public void setFetchSize(final int rows) throws SQLException {
+
+                        }
+
+                        @Override
+                        public int getFetchSize() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public int getResultSetConcurrency() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public int getResultSetType() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public void addBatch(final String sql) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void clearBatch() throws SQLException {
+
+                        }
+
+                        @Override
+                        public int[] executeBatch() throws SQLException {
+                            return new int[0];
+                        }
+
+                        @Override
+                        public Connection getConnection() throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public boolean getMoreResults(final int current) throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public ResultSet getGeneratedKeys() throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public int executeUpdate(final String sql, final int autoGeneratedKeys) throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public int executeUpdate(final String sql, final int[] columnIndexes) throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public int executeUpdate(final String sql, final String[] columnNames) throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public boolean execute(final String sql, final int autoGeneratedKeys) throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public boolean execute(final String sql, final int[] columnIndexes) throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public boolean execute(final String sql, final String[] columnNames) throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public int getResultSetHoldability() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public boolean isClosed() throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public void setPoolable(final boolean poolable) throws SQLException {
+
+                        }
+
+                        @Override
+                        public boolean isPoolable() throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public void closeOnCompletion() throws SQLException {
+
+                        }
+
+                        @Override
+                        public boolean isCloseOnCompletion() throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public <T> T unwrap(final Class<T> iface) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public boolean isWrapperFor(final Class<?> iface) throws SQLException {
+                            return false;
+                        }
+                    };
+                }
+
+                @Override
+                public PreparedStatement prepareStatement(final String sql) throws SQLException {
+                    checkActive(url);
+                    return new PreparedStatement() {
+                        @Override
+                        public ResultSet executeQuery() throws SQLException {
+                            checkActive(url);
+                            return newResultSet(sql);
+                        }
+
+                        @Override
+                        public int executeUpdate() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public void setNull(int parameterIndex, int sqlType) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setBoolean(int parameterIndex, boolean x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setByte(int parameterIndex, byte x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setShort(int parameterIndex, short x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setInt(int parameterIndex, int x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setLong(int parameterIndex, long x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setFloat(int parameterIndex, float x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setDouble(int parameterIndex, double x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setBigDecimal(int parameterIndex, BigDecimal x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setString(int parameterIndex, String x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setBytes(int parameterIndex, byte[] x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setDate(int parameterIndex, Date x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setTime(int parameterIndex, Time x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setTimestamp(int parameterIndex, Timestamp x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setAsciiStream(int parameterIndex, InputStream x, int length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setUnicodeStream(int parameterIndex, InputStream x, int length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setBinaryStream(int parameterIndex, InputStream x, int length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void clearParameters() throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setObject(int parameterIndex, Object x, int targetSqlType) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setObject(int parameterIndex, Object x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public boolean execute() throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public void addBatch() throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setCharacterStream(int parameterIndex, Reader reader, int length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setRef(int parameterIndex, Ref x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setBlob(int parameterIndex, Blob x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setClob(int parameterIndex, Clob x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setArray(int parameterIndex, Array x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public ResultSetMetaData getMetaData() throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public void setDate(int parameterIndex, Date x, Calendar cal) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setTime(int parameterIndex, Time x, Calendar cal) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setTimestamp(int parameterIndex, Timestamp x, Calendar cal) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setNull(int parameterIndex, int sqlType, String typeName) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setURL(int parameterIndex, URL x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public ParameterMetaData getParameterMetaData() throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public void setRowId(int parameterIndex, RowId x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setNString(int parameterIndex, String value) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setNCharacterStream(int parameterIndex, Reader value, long length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setNClob(int parameterIndex, NClob value) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setClob(int parameterIndex, Reader reader, long length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setBlob(int parameterIndex, InputStream inputStream, long length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setNClob(int parameterIndex, Reader reader, long length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setSQLXML(int parameterIndex, SQLXML xmlObject) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setObject(int parameterIndex, Object x, int targetSqlType, int scaleOrLength) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setAsciiStream(int parameterIndex, InputStream x, long length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setBinaryStream(int parameterIndex, InputStream x, long length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setCharacterStream(int parameterIndex, Reader reader, long length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setAsciiStream(int parameterIndex, InputStream x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setBinaryStream(int parameterIndex, InputStream x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setCharacterStream(int parameterIndex, Reader reader) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setNCharacterStream(int parameterIndex, Reader value) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setClob(int parameterIndex, Reader reader) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setBlob(int parameterIndex, InputStream inputStream) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setNClob(int parameterIndex, Reader reader) throws SQLException {
+
+                        }
+
+                        @Override
+                        public ResultSet executeQuery(String sql) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public int executeUpdate(String sql) throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public void close() throws SQLException {
+
+                        }
+
+                        @Override
+                        public int getMaxFieldSize() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public void setMaxFieldSize(int max) throws SQLException {
+
+                        }
+
+                        @Override
+                        public int getMaxRows() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public void setMaxRows(int max) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setEscapeProcessing(boolean enable) throws SQLException {
+
+                        }
+
+                        @Override
+                        public int getQueryTimeout() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public void setQueryTimeout(int seconds) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void cancel() throws SQLException {
+
+                        }
+
+                        @Override
+                        public SQLWarning getWarnings() throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public void clearWarnings() throws SQLException {
+
+                        }
+
+                        @Override
+                        public void setCursorName(String name) throws SQLException {
+
+                        }
+
+                        @Override
+                        public boolean execute(String sql) throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public ResultSet getResultSet() throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public int getUpdateCount() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public boolean getMoreResults() throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public void setFetchDirection(int direction) throws SQLException {
+
+                        }
+
+                        @Override
+                        public int getFetchDirection() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public void setFetchSize(int rows) throws SQLException {
+
+                        }
+
+                        @Override
+                        public int getFetchSize() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public int getResultSetConcurrency() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public int getResultSetType() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public void addBatch(String sql) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void clearBatch() throws SQLException {
+
+                        }
+
+                        @Override
+                        public int[] executeBatch() throws SQLException {
+                            return new int[0];
+                        }
+
+                        @Override
+                        public Connection getConnection() throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public boolean getMoreResults(int current) throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public ResultSet getGeneratedKeys() throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public int executeUpdate(String sql, int autoGeneratedKeys) throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public int executeUpdate(String sql, int[] columnIndexes) throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public int executeUpdate(String sql, String[] columnNames) throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public boolean execute(String sql, int autoGeneratedKeys) throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public boolean execute(String sql, int[] columnIndexes) throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public boolean execute(String sql, String[] columnNames) throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public int getResultSetHoldability() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public boolean isClosed() throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public void setPoolable(boolean poolable) throws SQLException {
+
+                        }
+
+                        @Override
+                        public boolean isPoolable() throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public void closeOnCompletion() throws SQLException {
+
+                        }
+
+                        @Override
+                        public boolean isCloseOnCompletion() throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public <T> T unwrap(Class<T> iface) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public boolean isWrapperFor(Class<?> iface) throws SQLException {
+                            return false;
+                        }
+                    };
+                }
+
+                private ResultSet newResultSet(final String sql) {
+                    return "select 1".equals(sql) ? new ResultSet() {
+                        private final AtomicBoolean val = new AtomicBoolean(true);
+
+                        @Override
+                        public boolean next() throws SQLException {
+                            return val.getAndSet(false);
+                        }
+
+                        @Override
+                        public void close() throws SQLException {
+
+                        }
+
+                        @Override
+                        public boolean wasNull() throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public String getString(int columnIndex) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public boolean getBoolean(int columnIndex) throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public byte getByte(int columnIndex) throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public short getShort(int columnIndex) throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public int getInt(int columnIndex) throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public long getLong(int columnIndex) throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public float getFloat(int columnIndex) throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public double getDouble(int columnIndex) throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public BigDecimal getBigDecimal(int columnIndex, int scale) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public byte[] getBytes(int columnIndex) throws SQLException {
+                            return new byte[0];
+                        }
+
+                        @Override
+                        public Date getDate(int columnIndex) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Time getTime(int columnIndex) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Timestamp getTimestamp(int columnIndex) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public InputStream getAsciiStream(int columnIndex) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public InputStream getUnicodeStream(int columnIndex) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public InputStream getBinaryStream(int columnIndex) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public String getString(String columnLabel) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public boolean getBoolean(String columnLabel) throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public byte getByte(String columnLabel) throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public short getShort(String columnLabel) throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public int getInt(String columnLabel) throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public long getLong(String columnLabel) throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public float getFloat(String columnLabel) throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public double getDouble(String columnLabel) throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public BigDecimal getBigDecimal(String columnLabel, int scale) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public byte[] getBytes(String columnLabel) throws SQLException {
+                            return new byte[0];
+                        }
+
+                        @Override
+                        public Date getDate(String columnLabel) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Time getTime(String columnLabel) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Timestamp getTimestamp(String columnLabel) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public InputStream getAsciiStream(String columnLabel) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public InputStream getUnicodeStream(String columnLabel) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public InputStream getBinaryStream(String columnLabel) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public SQLWarning getWarnings() throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public void clearWarnings() throws SQLException {
+
+                        }
+
+                        @Override
+                        public String getCursorName() throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public ResultSetMetaData getMetaData() throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Object getObject(int columnIndex) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Object getObject(String columnLabel) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public int findColumn(String columnLabel) throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public Reader getCharacterStream(int columnIndex) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Reader getCharacterStream(String columnLabel) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public BigDecimal getBigDecimal(int columnIndex) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public BigDecimal getBigDecimal(String columnLabel) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public boolean isBeforeFirst() throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public boolean isAfterLast() throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public boolean isFirst() throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public boolean isLast() throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public void beforeFirst() throws SQLException {
+
+                        }
+
+                        @Override
+                        public void afterLast() throws SQLException {
+
+                        }
+
+                        @Override
+                        public boolean first() throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public boolean last() throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public int getRow() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public boolean absolute(int row) throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public boolean relative(int rows) throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public boolean previous() throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public void setFetchDirection(int direction) throws SQLException {
+
+                        }
+
+                        @Override
+                        public int getFetchDirection() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public void setFetchSize(int rows) throws SQLException {
+
+                        }
+
+                        @Override
+                        public int getFetchSize() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public int getType() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public int getConcurrency() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public boolean rowUpdated() throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public boolean rowInserted() throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public boolean rowDeleted() throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public void updateNull(int columnIndex) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateBoolean(int columnIndex, boolean x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateByte(int columnIndex, byte x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateShort(int columnIndex, short x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateInt(int columnIndex, int x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateLong(int columnIndex, long x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateFloat(int columnIndex, float x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateDouble(int columnIndex, double x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateBigDecimal(int columnIndex, BigDecimal x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateString(int columnIndex, String x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateBytes(int columnIndex, byte[] x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateDate(int columnIndex, Date x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateTime(int columnIndex, Time x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateTimestamp(int columnIndex, Timestamp x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateAsciiStream(int columnIndex, InputStream x, int length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateBinaryStream(int columnIndex, InputStream x, int length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateCharacterStream(int columnIndex, Reader x, int length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateObject(int columnIndex, Object x, int scaleOrLength) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateObject(int columnIndex, Object x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateNull(String columnLabel) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateBoolean(String columnLabel, boolean x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateByte(String columnLabel, byte x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateShort(String columnLabel, short x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateInt(String columnLabel, int x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateLong(String columnLabel, long x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateFloat(String columnLabel, float x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateDouble(String columnLabel, double x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateBigDecimal(String columnLabel, BigDecimal x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateString(String columnLabel, String x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateBytes(String columnLabel, byte[] x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateDate(String columnLabel, Date x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateTime(String columnLabel, Time x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateTimestamp(String columnLabel, Timestamp x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateAsciiStream(String columnLabel, InputStream x, int length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateBinaryStream(String columnLabel, InputStream x, int length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateCharacterStream(String columnLabel, Reader reader, int length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateObject(String columnLabel, Object x, int scaleOrLength) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateObject(String columnLabel, Object x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void insertRow() throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateRow() throws SQLException {
+
+                        }
+
+                        @Override
+                        public void deleteRow() throws SQLException {
+
+                        }
+
+                        @Override
+                        public void refreshRow() throws SQLException {
+
+                        }
+
+                        @Override
+                        public void cancelRowUpdates() throws SQLException {
+
+                        }
+
+                        @Override
+                        public void moveToInsertRow() throws SQLException {
+
+                        }
+
+                        @Override
+                        public void moveToCurrentRow() throws SQLException {
+
+                        }
+
+                        @Override
+                        public Statement getStatement() throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Object getObject(int columnIndex, Map<String, Class<?>> map) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Ref getRef(int columnIndex) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Blob getBlob(int columnIndex) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Clob getClob(int columnIndex) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Array getArray(int columnIndex) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Object getObject(String columnLabel, Map<String, Class<?>> map) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Ref getRef(String columnLabel) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Blob getBlob(String columnLabel) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Clob getClob(String columnLabel) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Array getArray(String columnLabel) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Date getDate(int columnIndex, Calendar cal) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Date getDate(String columnLabel, Calendar cal) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Time getTime(int columnIndex, Calendar cal) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Time getTime(String columnLabel, Calendar cal) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Timestamp getTimestamp(int columnIndex, Calendar cal) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Timestamp getTimestamp(String columnLabel, Calendar cal) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public URL getURL(int columnIndex) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public URL getURL(String columnLabel) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public void updateRef(int columnIndex, Ref x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateRef(String columnLabel, Ref x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateBlob(int columnIndex, Blob x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateBlob(String columnLabel, Blob x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateClob(int columnIndex, Clob x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateClob(String columnLabel, Clob x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateArray(int columnIndex, Array x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateArray(String columnLabel, Array x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public RowId getRowId(int columnIndex) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public RowId getRowId(String columnLabel) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public void updateRowId(int columnIndex, RowId x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateRowId(String columnLabel, RowId x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public int getHoldability() throws SQLException {
+                            return 0;
+                        }
+
+                        @Override
+                        public boolean isClosed() throws SQLException {
+                            return false;
+                        }
+
+                        @Override
+                        public void updateNString(int columnIndex, String nString) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateNString(String columnLabel, String nString) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateNClob(int columnIndex, NClob nClob) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateNClob(String columnLabel, NClob nClob) throws SQLException {
+
+                        }
+
+                        @Override
+                        public NClob getNClob(int columnIndex) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public NClob getNClob(String columnLabel) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public SQLXML getSQLXML(int columnIndex) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public SQLXML getSQLXML(String columnLabel) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public void updateSQLXML(int columnIndex, SQLXML xmlObject) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateSQLXML(String columnLabel, SQLXML xmlObject) throws SQLException {
+
+                        }
+
+                        @Override
+                        public String getNString(int columnIndex) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public String getNString(String columnLabel) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Reader getNCharacterStream(int columnIndex) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public Reader getNCharacterStream(String columnLabel) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public void updateNCharacterStream(int columnIndex, Reader x, long length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateNCharacterStream(String columnLabel, Reader reader, long length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateAsciiStream(int columnIndex, InputStream x, long length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateBinaryStream(int columnIndex, InputStream x, long length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateCharacterStream(int columnIndex, Reader x, long length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateAsciiStream(String columnLabel, InputStream x, long length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateBinaryStream(String columnLabel, InputStream x, long length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateCharacterStream(String columnLabel, Reader reader, long length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateBlob(int columnIndex, InputStream inputStream, long length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateBlob(String columnLabel, InputStream inputStream, long length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateClob(int columnIndex, Reader reader, long length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateClob(String columnLabel, Reader reader, long length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateNClob(int columnIndex, Reader reader, long length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateNClob(String columnLabel, Reader reader, long length) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateNCharacterStream(int columnIndex, Reader x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateNCharacterStream(String columnLabel, Reader reader) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateAsciiStream(int columnIndex, InputStream x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateBinaryStream(int columnIndex, InputStream x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateCharacterStream(int columnIndex, Reader x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateAsciiStream(String columnLabel, InputStream x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateBinaryStream(String columnLabel, InputStream x) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateCharacterStream(String columnLabel, Reader reader) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateBlob(int columnIndex, InputStream inputStream) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateBlob(String columnLabel, InputStream inputStream) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateClob(int columnIndex, Reader reader) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateClob(String columnLabel, Reader reader) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateNClob(int columnIndex, Reader reader) throws SQLException {
+
+                        }
+
+                        @Override
+                        public void updateNClob(String columnLabel, Reader reader) throws SQLException {
+
+                        }
+
+                        @Override
+                        public <T> T getObject(int columnIndex, Class<T> type) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public <T> T getObject(String columnLabel, Class<T> type) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public <T> T unwrap(Class<T> iface) throws SQLException {
+                            return null;
+                        }
+
+                        @Override
+                        public boolean isWrapperFor(Class<?> iface) throws SQLException {
+                            return false;
+                        }
+                    } : null;
+                }
+
+                @Override
+                public CallableStatement prepareCall(final String sql) throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public String nativeSQL(final String sql) throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public void setAutoCommit(final boolean autoCommit) throws SQLException {
+
+                }
+
+                @Override
+                public boolean getAutoCommit() throws SQLException {
+                    return false;
+                }
+
+                @Override
+                public void commit() throws SQLException {
+
+                }
+
+                @Override
+                public void rollback() throws SQLException {
+
+                }
+
+                @Override
+                public void close() throws SQLException {
+
+                }
+
+                @Override
+                public boolean isClosed() throws SQLException {
+                    return false;
+                }
+
+                @Override
+                public DatabaseMetaData getMetaData() throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public void setReadOnly(final boolean readOnly) throws SQLException {
+
+                }
+
+                @Override
+                public boolean isReadOnly() throws SQLException {
+                    return false;
+                }
+
+                @Override
+                public void setCatalog(final String catalog) throws SQLException {
+
+                }
+
+                @Override
+                public String getCatalog() throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public void setTransactionIsolation(final int level) throws SQLException {
+
+                }
+
+                @Override
+                public int getTransactionIsolation() throws SQLException {
+                    return 0;
+                }
+
+                @Override
+                public SQLWarning getWarnings() throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public void clearWarnings() throws SQLException {
+
+                }
+
+                @Override
+                public Statement createStatement(final int resultSetType, final int resultSetConcurrency) throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public PreparedStatement prepareStatement(final String sql, final int resultSetType, final int resultSetConcurrency) throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public CallableStatement prepareCall(final String sql, final int resultSetType, final int resultSetConcurrency) throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public Map<String, Class<?>> getTypeMap() throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public void setTypeMap(final Map<String, Class<?>> map) throws SQLException {
+
+                }
+
+                @Override
+                public void setHoldability(final int holdability) throws SQLException {
+
+                }
+
+                @Override
+                public int getHoldability() throws SQLException {
+                    return 0;
+                }
+
+                @Override
+                public Savepoint setSavepoint() throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public Savepoint setSavepoint(final String name) throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public void rollback(final Savepoint savepoint) throws SQLException {
+
+                }
+
+                @Override
+                public void releaseSavepoint(final Savepoint savepoint) throws SQLException {
+
+                }
+
+                @Override
+                public Statement createStatement(final int resultSetType, final int resultSetConcurrency,
+                                                 final int resultSetHoldability) throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public PreparedStatement prepareStatement(final String sql, final int resultSetType,
+                                                          final int resultSetConcurrency, final int resultSetHoldability) throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public CallableStatement prepareCall(final String sql, final int resultSetType,
+                                                     final int resultSetConcurrency, final int resultSetHoldability) throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public PreparedStatement prepareStatement(final String sql, final int autoGeneratedKeys) throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public PreparedStatement prepareStatement(final String sql, final int[] columnIndexes) throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public PreparedStatement prepareStatement(final String sql, final String[] columnNames) throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public Clob createClob() throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public Blob createBlob() throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public NClob createNClob() throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public SQLXML createSQLXML() throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public boolean isValid(int timeout) throws SQLException {
+                    return false;
+                }
+
+                @Override
+                public void setClientInfo(final String name, final String value) throws SQLClientInfoException {
+
+                }
+
+                @Override
+                public void setClientInfo(final Properties properties) throws SQLClientInfoException {
+
+                }
+
+                @Override
+                public String getClientInfo(final String name) throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public Properties getClientInfo() throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public Array createArrayOf(final String typeName, final Object[] elements) throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public Struct createStruct(final String typeName, final Object[] attributes) throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public void setSchema(final String schema) throws SQLException {
+
+                }
+
+                @Override
+                public String getSchema() throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public void abort(final Executor executor) throws SQLException {
+
+                }
+
+                @Override
+                public void setNetworkTimeout(final Executor executor, final int milliseconds) throws SQLException {
+
+                }
+
+                @Override
+                public int getNetworkTimeout() throws SQLException {
+                    return 0;
+                }
+
+                @Override
+                public <T> T unwrap(final Class<T> iface) throws SQLException {
+                    return null;
+                }
+
+                @Override
+                public boolean isWrapperFor(final Class<?> iface) throws SQLException {
+                    return false;
+                }
+            };
+        }
+
+        private void checkActive(String url) throws SQLException {
+            if (!actives.contains(url)) {
+                throw new SQLException("failed");
+            }
+        }
+
+        @Override
+        public boolean acceptsURL(final String url) throws SQLException {
+            try {
+                Integer.parseInt(url);
+                return true;
+            } catch (final NumberFormatException nfe) {
+                return false;
+            }
+        }
+
+        @Override
+        public DriverPropertyInfo[] getPropertyInfo(final String url, final Properties info) throws SQLException {
+            return new DriverPropertyInfo[0];
+        }
+
+        @Override
+        public int getMajorVersion() {
+            return 4;
+        }
+
+        @Override
+        public int getMinorVersion() {
+            return 2;
+        }
+
+        @Override
+        public boolean jdbcCompliant() {
+            return false;
+        }
+
+        @Override
+        public Logger getParentLogger() throws SQLFeatureNotSupportedException {
+            return null;
+        }
+    }
+}

http://git-wip-us.apache.org/repos/asf/tomee/blob/28a95b71/container/openejb-core/src/test/java/org/apache/openejb/resource/jdbc/FailOverRouterTest.java
----------------------------------------------------------------------
diff --git a/container/openejb-core/src/test/java/org/apache/openejb/resource/jdbc/FailOverRouterTest.java b/container/openejb-core/src/test/java/org/apache/openejb/resource/jdbc/FailOverRouterTest.java
index 62f4786..0795a71 100644
--- a/container/openejb-core/src/test/java/org/apache/openejb/resource/jdbc/FailOverRouterTest.java
+++ b/container/openejb-core/src/test/java/org/apache/openejb/resource/jdbc/FailOverRouterTest.java
@@ -67,8 +67,8 @@ public class FailOverRouterTest {
     }
 
     private void rotate() {
-        final Iterator<DataSource> it = router.getDataSources().iterator();
-        final DataSource ds1 = it.next();
+        final Iterator<FailOverRouter.DataSourceHolder> it = router.getDataSources().iterator();
+        final FailOverRouter.DataSourceHolder ds1 = it.next();
         router.updateDataSources(Arrays.asList(it.next(), it.next(), ds1));
     }
 


[2/2] tomee git commit: TOMEE-1831 adding ErrorHandler to FailoverRouter

Posted by rm...@apache.org.
TOMEE-1831 adding ErrorHandler to FailoverRouter


Project: http://git-wip-us.apache.org/repos/asf/tomee/repo
Commit: http://git-wip-us.apache.org/repos/asf/tomee/commit/28a95b71
Tree: http://git-wip-us.apache.org/repos/asf/tomee/tree/28a95b71
Diff: http://git-wip-us.apache.org/repos/asf/tomee/diff/28a95b71

Branch: refs/heads/master
Commit: 28a95b71c95bffdcdbee85f7e137948068f3c8d7
Parents: 16cc79b
Author: Romain manni-Bucau <rm...@gmail.com>
Authored: Tue Jun 7 13:10:17 2016 +0200
Committer: Romain manni-Bucau <rm...@gmail.com>
Committed: Tue Jun 7 13:10:17 2016 +0200

----------------------------------------------------------------------
 .../resource/jdbc/router/FailOverRouter.java    |  273 ++-
 .../jdbc/FailOverRouterErrorHandlerTest.java    | 2163 ++++++++++++++++++
 .../resource/jdbc/FailOverRouterTest.java       |    4 +-
 3 files changed, 2347 insertions(+), 93 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/tomee/blob/28a95b71/container/openejb-core/src/main/java/org/apache/openejb/resource/jdbc/router/FailOverRouter.java
----------------------------------------------------------------------
diff --git a/container/openejb-core/src/main/java/org/apache/openejb/resource/jdbc/router/FailOverRouter.java b/container/openejb-core/src/main/java/org/apache/openejb/resource/jdbc/router/FailOverRouter.java
index dea3669..0ab5b35 100644
--- a/container/openejb-core/src/main/java/org/apache/openejb/resource/jdbc/router/FailOverRouter.java
+++ b/container/openejb-core/src/main/java/org/apache/openejb/resource/jdbc/router/FailOverRouter.java
@@ -22,9 +22,9 @@ import org.apache.openejb.loader.SystemInstance;
 import org.apache.openejb.util.LogCategory;
 import org.apache.openejb.util.Logger;
 
+import javax.annotation.PostConstruct;
 import javax.naming.NamingException;
 import javax.sql.DataSource;
-import javax.sql.XADataSource;
 import javax.transaction.Transaction;
 import javax.transaction.TransactionManager;
 import javax.transaction.TransactionSynchronizationRegistry;
@@ -35,11 +35,11 @@ import java.lang.reflect.Proxy;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
+import java.util.HashMap;
 import java.util.List;
-import java.util.Locale;
+import java.util.Map;
 import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.concurrent.atomic.AtomicInteger;
-import java.util.concurrent.atomic.AtomicReference;
 import java.util.regex.Pattern;
 
 public class FailOverRouter extends AbstractRouter {
@@ -47,8 +47,10 @@ public class FailOverRouter extends AbstractRouter {
 
     public static final String DEFAULT_STRATEGY = "default";
 
-    private final AtomicReference<DataSource> facade = new AtomicReference<DataSource>();
-    private final Collection<DataSource> dataSources = new CopyOnWriteArrayList<DataSource>();
+    private ErrorHandler errorHandlerRuntime;
+    private Strategy strategyRuntime;
+    private DataSource facade;
+    private final List<DataSourceHolder> dataSources = new CopyOnWriteArrayList<>();
 
     private String delimiter = ",";
     private String strategy = DEFAULT_STRATEGY;
@@ -56,39 +58,153 @@ public class FailOverRouter extends AbstractRouter {
 
     @Override
     public DataSource getDataSource() {
-        return facade.get();
+        return facade;
+    }
+
+    @PostConstruct
+    private void init() {
+        initDataSources();
+        initStrategy();
+        initFacade();
     }
 
     public void setDatasourceNames(final String datasourceNames) {
         this.datasourceNames = datasourceNames;
-        initDataSources();
     }
 
     public void setDelimiter(final String delimiter) {
         this.delimiter = delimiter;
-        initDataSources();
     }
 
     public void setStrategy(final String strategy) {
-        if (strategy == null) {
-            this.strategy = DEFAULT_STRATEGY;
-        } else {
-            this.strategy = strategy.toLowerCase(Locale.ENGLISH).trim();
+        this.strategy = strategy;
+    }
+
+    public void setStrategyInstance(final Strategy strategy) {
+        this.strategyRuntime = strategy;
+    }
+
+    public void setErrorHandlerInstance(final ErrorHandler errorHandler) {
+        errorHandlerRuntime = errorHandler;
+    }
+
+    public void setErrorHandler(final String errorHandler) {
+        try {
+            errorHandlerRuntime = ErrorHandler.class.cast(
+                    Thread.currentThread().getContextClassLoader().loadClass(errorHandler.trim()).newInstance());
+        } catch (final InstantiationException | IllegalAccessException | ClassNotFoundException e) {
+            throw new IllegalArgumentException(e);
+        }
+    }
+
+    private void initStrategy() {
+        switch (strategy) {
+            case "round-robin":
+                strategyRuntime = new Strategy() { // simply rotating the list each time
+                    private final AtomicInteger idx = new AtomicInteger(0);
+
+                    @Override
+                    public Collection<DataSourceHolder> prepare(final Collection<DataSourceHolder> list) {
+                        final int step;
+                        if (strategy.contains("%")) {
+                            step = Math.max(1, Integer.parseInt(strategy.substring(strategy.lastIndexOf("%") + 1)));
+                        } else {
+                            step = 1;
+                        }
+
+                        final List<DataSourceHolder> ds = new ArrayList<>(list);
+                        int currentIdx = 0;
+                        for (int i = 0; i < step; i++) {
+                            currentIdx = idx.incrementAndGet();
+                        }
+                        Collections.rotate(ds, 1 + currentIdx % ds.size());
+                        return ds;
+                    }
+
+                    @Override
+                    public void used(final DataSourceHolder holder) {
+                        // no-op
+                    }
+                };
+                break;
+            case "random":
+                strategyRuntime = new Strategy() { // simply rotating the list each time
+                    @Override
+                    public Collection<DataSourceHolder> prepare(final Collection<DataSourceHolder> list) {
+                        final List<DataSourceHolder> ds = new ArrayList<DataSourceHolder>(list);
+                        Collections.shuffle(ds);
+                        return ds;
+                    }
+
+                    @Override
+                    public void used(final DataSourceHolder holder) {
+                        // no-op
+                    }
+                };
+                break;
+            case "reverse":
+                strategyRuntime = new Strategy() { // simply rotating the list each time
+                    private final AtomicInteger idx = new AtomicInteger();
+
+                    @Override
+                    public Collection<DataSourceHolder> prepare(final Collection<DataSourceHolder> list) {
+                        final List<DataSourceHolder> ds = new ArrayList<>(list);
+                        final int times = idx.incrementAndGet() % ds.size();
+                        for (int i = 0; i < times; i++) {
+                            Collections.reverse(ds);
+                        }
+                        return ds;
+                    }
+
+                    @Override
+                    public void used(final DataSourceHolder holder) {
+                        // no-op
+                    }
+                };
+                break;
+            case DEFAULT_STRATEGY:
+            default:
+                strategyRuntime = new Strategy() { // use the list and save a working item as first one
+                    @Override
+                    public Collection<DataSourceHolder> prepare(final Collection<DataSourceHolder> list) {
+                        return list;
+                    }
+
+                    @Override
+                    public void used(final DataSourceHolder holder) {
+                        if (dataSources.get(0) == holder) { // no lock
+                            return;
+                        }
+                        synchronized (this) {
+                            if (dataSources.get(0) == holder) {
+                                return;
+                            }
+
+                            final DataSourceHolder old = dataSources.set(0, holder); // locks
+                            if (old != holder) {
+                                dataSources.set(dataSources.lastIndexOf(holder), old);
+                            }
+                        }
+                    }
+                };
+                break;
         }
-        initFacade();
     }
 
     private void initDataSources() {
         dataSources.clear();
         for (final String ds : datasourceNames.split(Pattern.quote(delimiter))) {
             try {
-                final Object o = getOpenEJBResource(ds.trim());
+                final String name = ds.trim();
+                final Object o = getOpenEJBResource(name);
                 if (DataSource.class.isInstance(o)) {
                     LOGGER.debug("Found datasource '" + ds + "'");
-                    dataSources.add(DataSource.class.cast(o));
+                    dataSources.add(new DataSourceHolder(DataSource.class.cast(o), name));
+                } else {
+                    throw new IllegalArgumentException(name + " (" + o + ") is not a datasource");
                 }
             } catch (final NamingException error) {
-                LOGGER.error("Can't find datasource '" + ds + "'", error);
+                throw new IllegalStateException(error);
             }
         }
 
@@ -96,27 +212,16 @@ public class FailOverRouter extends AbstractRouter {
     }
 
     private void initFacade() {
-        Class<?> clazz = DataSource.class;
-        int xads = 0;
-        for (final DataSource ds : dataSources) {
-            if (XADataSource.class.isInstance(ds)) {
-                xads++;
-            }
-        }
-        if (xads > 0 && xads == dataSources.size()) {
-            clazz = XADataSource.class;
-        }
-
-        facade.set(DataSource.class.cast(Proxy.newProxyInstance(
-            Thread.currentThread().getContextClassLoader(),
-            new Class<?>[]{clazz}, new FacadeHandler(dataSources, strategy))));
+        facade = DataSource.class.cast(Proxy.newProxyInstance(
+                Thread.currentThread().getContextClassLoader(),
+                new Class<?>[]{DataSource.class}, new FacadeHandler(dataSources, strategyRuntime, errorHandlerRuntime)));
     }
 
-    public Collection<DataSource> getDataSources() {
+    public Collection<DataSourceHolder> getDataSources() {
         return dataSources;
     }
 
-    public void updateDataSources(final Collection<DataSource> ds) {
+    public void updateDataSources(final Collection<DataSourceHolder> ds) {
         dataSources.clear();
         dataSources.addAll(ds);
         initFacade();
@@ -124,15 +229,17 @@ public class FailOverRouter extends AbstractRouter {
 
     private static class FacadeHandler implements InvocationHandler {
         private static final TransactionSynchronizationRegistry SYNCHRONIZATION_REGISTRY = SystemInstance.get().getComponent(TransactionSynchronizationRegistry.class);
-        private static final String DATASOURCE_KEY = "router_datasource_in_use";
 
-        private final Collection<DataSource> delegates;
-        private final String strategy;
-        private final AtomicInteger currentIdx = new AtomicInteger(0); // used by some strategies
+        private final Collection<DataSourceHolder> delegates;
+        private final Strategy strategy;
+        private final TransactionManager transactionManager;
+        private final ErrorHandler handler;
 
-        public FacadeHandler(final Collection<DataSource> dataSources, final String strategy) {
+        public FacadeHandler(final Collection<DataSourceHolder> dataSources, final Strategy strategy, final ErrorHandler handler) {
             this.delegates = dataSources;
             this.strategy = strategy;
+            this.handler = handler;
+            this.transactionManager = OpenEJB.getTransactionManager();
         }
 
         @Override
@@ -149,33 +256,33 @@ public class FailOverRouter extends AbstractRouter {
                 }
             }
 
-            final TransactionManager txMgr = OpenEJB.getTransactionManager();
-            final Transaction transaction = txMgr.getTransaction();
-
+            final Transaction transaction = transactionManager.getTransaction();
             if (transaction != null) {
-
-                final DataSource currentDs = DataSource.class.cast(SYNCHRONIZATION_REGISTRY.getResource(DATASOURCE_KEY));
+                final DataSource currentDs = DataSource.class.cast(SYNCHRONIZATION_REGISTRY.getResource(FacadeHandler.class.getName()));
                 if (currentDs != null) {
                     return method.invoke(currentDs, args);
                 }
             }
 
             int ex = 0;
-            final Collection<DataSource> sources = sortFollowingStrategy(strategy, delegates, currentIdx);
+            final Collection<DataSourceHolder> sources = strategy.prepare(delegates);
             final int size = sources.size();
 
             Object out = null;
-            for (final DataSource ds : sources) {
+            Map<String, Throwable> failed = null;
+            DataSourceHolder used = null;
+            for (final DataSourceHolder ds : sources) {
+                used = ds;
                 try {
                     final boolean set = method.getName().startsWith("set");
-                    if (set) { // set on all datasources because of failover which can happen
-                        method.invoke(ds, args);
+                    if (set) { // should set on all datasources because of failover which can happen but can also be bound to the tx
+                        method.invoke(ds.dataSource, args);
                     } else { // getConnection methods are here
-                        out = method.invoke(ds, args);
+                        out = method.invoke(ds.dataSource, args);
                     }
 
                     if (transaction != null) { // if a tx is in progress save the datasource to use for the tx
-                        SYNCHRONIZATION_REGISTRY.putResource(DATASOURCE_KEY, ds);
+                        SYNCHRONIZATION_REGISTRY.putResource(FacadeHandler.class.getName(), ds.dataSource);
                         break;
                     }
 
@@ -183,64 +290,48 @@ public class FailOverRouter extends AbstractRouter {
                         break;
                     }
                 } catch (final InvocationTargetException ite) {
+                    if (handler != null) {
+                        if (failed == null) {
+                            failed = new HashMap<>();
+                        }
+                        failed.put(ds.name, ite.getCause());
+                    }
+
                     ex++;
                     if (ex == size) { // all failed so throw the exception
+                        if (failed != null) {
+                            handler.onError(failed, null);
+                        }
                         throw ite.getCause();
                     }
                 }
             }
 
+            if (failed != null) {
+                handler.onError(failed, used);
+            }
+            strategy.used(used);
             return out;
         }
     }
 
-    private static Collection<DataSource> sortFollowingStrategy(final String strategy, final Collection<DataSource> delegates, final AtomicInteger idx) {
-        if (strategy == null) {
-            return delegates;
-        }
-
-        if (DEFAULT_STRATEGY.equals(strategy) || strategy.isEmpty()) {
-            return delegates;
-        }
-
-        //
-        // take care next strategies can break multiple calls on the facade
-        // it is only intended to be used for connection selection
-        //
-
-        if ("random".equals(strategy)) {
-            final List<DataSource> ds = new ArrayList<DataSource>(delegates);
-            Collections.shuffle(ds);
-            return ds;
-        }
+    public interface ErrorHandler {
+        void onError(final Map<String, Throwable> errorByFailingDataSource, final DataSourceHolder finallyUsedOrNull);
+    }
 
-        if ("reverse".equals(strategy)) {
-            final List<DataSource> ds = new ArrayList<DataSource>(delegates);
-            final int times = idx.incrementAndGet() % ds.size();
-            for (int i = 0; i < times; i++) {
-                Collections.reverse(ds);
-            }
-            return ds;
-        }
+    public interface Strategy {
+        Collection<DataSourceHolder> prepare(final Collection<DataSourceHolder> list);
 
-        if (strategy.startsWith("round-robin")) {
-            final int step;
-            if (strategy.contains("%")) {
-                step = Math.max(1, Integer.parseInt(strategy.substring(strategy.lastIndexOf("%") + 1)));
-            } else {
-                step = 1;
-            }
+        void used(DataSourceHolder holder);
+    }
 
-            final List<DataSource> ds = new ArrayList<DataSource>(delegates);
+    public static final class DataSourceHolder {
+        private final DataSource dataSource;
+        private final String name;
 
-            int currentIdx = 0;
-            for (int i = 0; i < step; i++) {
-                currentIdx = idx.incrementAndGet();
-            }
-            Collections.rotate(ds, 1 + currentIdx % ds.size());
-            return ds;
+        public DataSourceHolder(final DataSource dataSource, final String name) {
+            this.dataSource = dataSource;
+            this.name = name;
         }
-
-        return delegates;
     }
 }