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Posted to commits@myfaces.apache.org by st...@apache.org on 2011/11/04 09:23:52 UTC
svn commit: r1197423 - in
/myfaces/extensions/cdi/trunk/jee-modules/jpa-module/impl/src/main/java/org/apache/myfaces/extensions/cdi/jpa/impl/datasource:
./ ConfigurableDataSource.java
Author: struberg
Date: Fri Nov 4 08:23:51 2011
New Revision: 1197423
URL: http://svn.apache.org/viewvc?rev=1197423&view=rev
Log:
EXTCDI-236 move ConfigurableDataSource to jpa-impl module
I also applied the JNDIUtils changes from gerhards previous commit
Added:
myfaces/extensions/cdi/trunk/jee-modules/jpa-module/impl/src/main/java/org/apache/myfaces/extensions/cdi/jpa/impl/datasource/
myfaces/extensions/cdi/trunk/jee-modules/jpa-module/impl/src/main/java/org/apache/myfaces/extensions/cdi/jpa/impl/datasource/ConfigurableDataSource.java (with props)
Added: myfaces/extensions/cdi/trunk/jee-modules/jpa-module/impl/src/main/java/org/apache/myfaces/extensions/cdi/jpa/impl/datasource/ConfigurableDataSource.java
URL: http://svn.apache.org/viewvc/myfaces/extensions/cdi/trunk/jee-modules/jpa-module/impl/src/main/java/org/apache/myfaces/extensions/cdi/jpa/impl/datasource/ConfigurableDataSource.java?rev=1197423&view=auto
==============================================================================
--- myfaces/extensions/cdi/trunk/jee-modules/jpa-module/impl/src/main/java/org/apache/myfaces/extensions/cdi/jpa/impl/datasource/ConfigurableDataSource.java (added)
+++ myfaces/extensions/cdi/trunk/jee-modules/jpa-module/impl/src/main/java/org/apache/myfaces/extensions/cdi/jpa/impl/datasource/ConfigurableDataSource.java Fri Nov 4 08:23:51 2011
@@ -0,0 +1,205 @@
+/*
+ * 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.myfaces.extensions.cdi.jpa.impl.datasource;
+
+import org.apache.commons.beanutils.BeanUtils;
+import org.apache.myfaces.extensions.cdi.core.api.provider.BeanManagerProvider;
+import org.apache.myfaces.extensions.cdi.core.impl.util.JndiUtils;
+import org.apache.myfaces.extensions.cdi.jpa.api.datasource.DataSourceConfig;
+
+import javax.sql.DataSource;
+import java.io.PrintWriter;
+import java.sql.Connection;
+import java.sql.SQLException;
+import java.sql.SQLFeatureNotSupportedException;
+import java.util.Map;
+import java.util.logging.Logger;
+
+/**
+ * <p>This class can be used instead of a real DataSource.
+ * It is a simple wrapper to hide any database configuration details
+ * and make it configurable via CDI.</p>
+ *
+ * <p>The configuration itself will be provided via CDI mechanics.
+ * To distinguish different databases, users can specify a
+ * <code>connectionId</code>. If no <code>connectionId</code> is set,
+ * the String <code>default</code> will be used</p>
+ */
+public class ConfigurableDataSource implements DataSource
+{
+ /**
+ * config and settings are loaded only once.
+ */
+ private boolean loaded;
+
+ /**
+ * The connectionId allows to configure multiple databases.
+ * This can e.g. be used to distinguish between a 'customer' and 'admin'
+ * database.
+ */
+ private String connectionId = "default";
+
+ /**
+ * The underlying configuration of the datasource
+ */
+ private DataSourceConfig dataSourceConfig;
+
+ /**
+ * The underlying 'real' DataSource
+ */
+ private volatile DataSource wrappedDataSource;
+
+ public ConfigurableDataSource()
+ {
+ loaded = false;
+ dataSourceConfig = BeanManagerProvider.getInstance().getContextualReference(DataSourceConfig.class);
+ }
+
+ public void setConnectionId(String connectionId)
+ {
+ if (loaded)
+ {
+ throw new IllegalStateException("connectionId must not get changed after the DataSource was established");
+ }
+ this.connectionId = connectionId;
+ }
+
+ public Connection getConnection() throws SQLException
+ {
+ return getConnection(null, null);
+ }
+
+ public Connection getConnection(String userName, String password) throws SQLException
+ {
+ if (wrappedDataSource == null)
+ {
+ initDataSource();
+ }
+
+ if (userName == null && password == null)
+ {
+ return wrappedDataSource.getConnection();
+ }
+ return wrappedDataSource.getConnection(userName, password);
+ }
+
+
+ public PrintWriter getLogWriter() throws SQLException
+ {
+ return null;
+ }
+
+ public void setLogWriter(PrintWriter printWriter) throws SQLException
+ {
+ }
+
+ public void setLoginTimeout(int loginTimeout) throws SQLException
+ {
+ }
+
+ public int getLoginTimeout() throws SQLException
+ {
+ return 0;
+ }
+
+ public <T> T unwrap(Class<T> iface) throws SQLException
+ {
+ if (isWrapperFor(iface))
+ {
+ return (T) this;
+ }
+ else
+ {
+ return null;
+ }
+ }
+
+ public boolean isWrapperFor(Class<?> iface) throws SQLException
+ {
+ return iface.isAssignableFrom(ConfigurableDataSource.class);
+ }
+
+ /**
+ * NEW JDK1.7 signature.
+ * This makes sure that CODI can also get compiled using java-7.
+ * This method is not actively used though.
+ */
+ public Logger getParentLogger() throws SQLFeatureNotSupportedException
+ {
+ throw new SQLFeatureNotSupportedException();
+ }
+
+ /**
+ *
+ */
+ protected synchronized void initDataSource() throws SQLException
+ {
+ // double check lock idiom on volatile member is ok as of Java5
+ if (wrappedDataSource != null)
+ {
+ return;
+ }
+
+ String jndiLookupName = dataSourceConfig.getJndiResourceName(connectionId);
+ if (jndiLookupName != null && jndiLookupName.length() > 0)
+ {
+ wrappedDataSource = JndiUtils.lookup(jndiLookupName, DataSource.class);
+ return;
+ }
+
+ // no JNDI, so we take the direct JDBC route.
+ String jdbcDriverClass = dataSourceConfig.getDriverClassName(connectionId);
+ if (jdbcDriverClass == null && jdbcDriverClass.length() == 0)
+ {
+ throw new SQLException("Neither a JNDI location nor a JDBC driver class name is configured!");
+ }
+
+ try
+ {
+ // we explicitely use class.forName and NOT the ThreadContextClassLoader!
+ Class clazz = Class.forName(jdbcDriverClass);
+
+ // the given driver classname must be a DataSource
+ if (!DataSource.class.isAssignableFrom(clazz))
+ {
+ throw new SQLException("Configured DriverClassName is not a javax.sql.DataSource: "
+ + jdbcDriverClass);
+ }
+
+ wrappedDataSource = (DataSource) clazz.newInstance();
+
+ Map<String, String> config = dataSourceConfig.getConnectionProperties(connectionId);
+ for (Map.Entry<String, String> configOption : config.entrySet())
+ {
+ BeanUtils.setProperty(wrappedDataSource, configOption.getKey(), configOption.getValue());
+ }
+ }
+ catch (Exception e)
+ {
+ wrappedDataSource = null;
+
+ if (e instanceof SQLException)
+ {
+ throw (SQLException) e;
+ }
+ throw new SQLException(e);
+ }
+ }
+
+}
Propchange: myfaces/extensions/cdi/trunk/jee-modules/jpa-module/impl/src/main/java/org/apache/myfaces/extensions/cdi/jpa/impl/datasource/ConfigurableDataSource.java
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