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Posted to commits@zeppelin.apache.org by mo...@apache.org on 2015/04/25 01:36:02 UTC
[1/2] incubator-zeppelin git commit: ZEPPELIN-45: Integrate Tajo with
Zeppelin
Repository: incubator-zeppelin
Updated Branches:
refs/heads/master b3b9c93d9 -> 3a4ab1ad2
http://git-wip-us.apache.org/repos/asf/incubator-zeppelin/blob/3a4ab1ad/tajo/src/test/java/org/apache/zeppelin/tajo/TesterStatement.java
----------------------------------------------------------------------
diff --git a/tajo/src/test/java/org/apache/zeppelin/tajo/TesterStatement.java b/tajo/src/test/java/org/apache/zeppelin/tajo/TesterStatement.java
new file mode 100644
index 0000000..22be68d
--- /dev/null
+++ b/tajo/src/test/java/org/apache/zeppelin/tajo/TesterStatement.java
@@ -0,0 +1,344 @@
+/**
+ * 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.zeppelin.tajo;
+
+
+import java.sql.*;
+
+/**
+ * This is borrowed from Apache Commons DBCP2.
+ *
+ * A dummy {@link java.sql.Statement}, for testing purposes.
+ */
+public class TesterStatement implements Statement {
+ public TesterStatement(Connection conn) {
+ _connection = conn;
+ }
+
+ public TesterStatement(Connection conn, int resultSetType, int resultSetConcurrency) {
+ _connection = conn;
+ _resultSetType = resultSetType;
+ _resultSetConcurrency = resultSetConcurrency;
+ }
+
+ protected Connection _connection = null;
+ protected boolean _open = true;
+ protected int _rowsUpdated = 1;
+ protected boolean _executeResponse = true;
+ protected int _maxFieldSize = 1024;
+ protected int _maxRows = 1024;
+ protected boolean _escapeProcessing = false;
+ protected int _queryTimeout = 1000;
+ protected String _cursorName = null;
+ protected int _fetchDirection = 1;
+ protected int _fetchSize = 1;
+ protected int _resultSetConcurrency = 1;
+ protected int _resultSetType = 1;
+ protected ResultSet _resultSet = null;
+
+ @Override
+ public ResultSet executeQuery(String sql) throws SQLException {
+ checkOpen();
+ if("null".equals(sql)) {
+ return null;
+ }
+ if("invalid".equals(sql)) {
+ throw new SQLException("invalid query");
+ }
+ if ("broken".equals(sql)) {
+ throw new SQLException("broken connection");
+ }
+ if("select username".equals(sql)) {
+ String username = ((TesterConnection) _connection).getUsername();
+ Object[][] data = {{username}};
+ return new TesterResultSet(this, data);
+ } else {
+ // Simulate timeout if queryTimout is set to less than 5 seconds
+ if (_queryTimeout > 0 && _queryTimeout < 5) {
+ throw new SQLException("query timeout");
+ }
+ return new TesterResultSet(this);
+ }
+ }
+
+ @Override
+ public int executeUpdate(String sql) throws SQLException {
+ checkOpen();
+ return _rowsUpdated;
+ }
+
+ @Override
+ public void close() throws SQLException {
+ // calling close twice has no effect
+ if (!_open) {
+ return;
+ }
+
+ _open = false;
+ if (_resultSet != null) {
+ _resultSet.close();
+ _resultSet = null;
+ }
+ }
+
+ @Override
+ public int getMaxFieldSize() throws SQLException {
+ checkOpen();
+ return _maxFieldSize;
+ }
+
+ @Override
+ public void setMaxFieldSize(int max) throws SQLException {
+ checkOpen();
+ _maxFieldSize = max;
+ }
+
+ @Override
+ public int getMaxRows() throws SQLException {
+ checkOpen();
+ return _maxRows;
+ }
+
+ @Override
+ public void setMaxRows(int max) throws SQLException {
+ checkOpen();
+ _maxRows = max;
+ }
+
+ @Override
+ public void setEscapeProcessing(boolean enable) throws SQLException {
+ checkOpen();
+ _escapeProcessing = enable;
+ }
+
+ @Override
+ public int getQueryTimeout() throws SQLException {
+ checkOpen();
+ return _queryTimeout;
+ }
+
+ @Override
+ public void setQueryTimeout(int seconds) throws SQLException {
+ checkOpen();
+ _queryTimeout = seconds;
+ }
+
+ @Override
+ public void cancel() throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public SQLWarning getWarnings() throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public void clearWarnings() throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void setCursorName(String name) throws SQLException {
+ checkOpen();
+ _cursorName = name;
+ }
+
+ @Override
+ public boolean execute(String sql) throws SQLException {
+ checkOpen();
+ if("invalid".equals(sql)) {
+ throw new SQLException("invalid query");
+ }
+ return _executeResponse;
+ }
+
+ @Override
+ public ResultSet getResultSet() throws SQLException {
+ checkOpen();
+ if (_resultSet == null) {
+ _resultSet = new TesterResultSet(this);
+ }
+ return _resultSet;
+ }
+
+ @Override
+ public int getUpdateCount() throws SQLException {
+ checkOpen();
+ return _rowsUpdated;
+ }
+
+ @Override
+ public boolean getMoreResults() throws SQLException {
+ checkOpen();
+ return false;
+ }
+
+ @Override
+ public void setFetchDirection(int direction) throws SQLException {
+ checkOpen();
+ _fetchDirection = direction;
+ }
+
+ @Override
+ public int getFetchDirection() throws SQLException {
+ checkOpen();
+ return _fetchDirection;
+ }
+
+ @Override
+ public void setFetchSize(int rows) throws SQLException {
+ checkOpen();
+ _fetchSize = rows;
+ }
+
+ @Override
+ public int getFetchSize() throws SQLException {
+ checkOpen();
+ return _fetchSize;
+ }
+
+ @Override
+ public int getResultSetConcurrency() throws SQLException {
+ checkOpen();
+ return _resultSetConcurrency;
+ }
+
+ @Override
+ public int getResultSetType() throws SQLException {
+ checkOpen();
+ return _resultSetType;
+ }
+
+ @Override
+ public void addBatch(String sql) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void clearBatch() throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public int[] executeBatch() throws SQLException {
+ checkOpen();
+ return new int[0];
+ }
+
+ @Override
+ public Connection getConnection() throws SQLException {
+ checkOpen();
+ return _connection;
+ }
+
+ protected void checkOpen() throws SQLException {
+ if(!_open) {
+ throw new SQLException("Connection is closed.");
+ }
+ }
+
+ @Override
+ public boolean getMoreResults(int current) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public ResultSet getGeneratedKeys() throws SQLException {
+ return new TesterResultSet(this);
+ }
+
+ @Override
+ public int executeUpdate(String sql, int autoGeneratedKeys)
+ throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public int executeUpdate(String sql, int columnIndexes[])
+ throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public int executeUpdate(String sql, String columnNames[])
+ throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public boolean execute(String sql, int autoGeneratedKeys)
+ throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public boolean execute(String sql, int columnIndexes[])
+ throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public boolean execute(String sql, String columnNames[])
+ throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public int getResultSetHoldability() throws SQLException {
+ checkOpen();
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+
+ @Override
+ public boolean isWrapperFor(Class<?> iface) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public <T> T unwrap(Class<T> iface) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public boolean isClosed() throws SQLException {
+ return !_open;
+ }
+
+ @Override
+ public void setPoolable(boolean poolable) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public boolean isPoolable() throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void closeOnCompletion() throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not implemented.");
+ }
+
+ @Override
+ public boolean isCloseOnCompletion() throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not implemented.");
+ }
+}
http://git-wip-us.apache.org/repos/asf/incubator-zeppelin/blob/3a4ab1ad/tajo/src/test/java/org/apache/zeppelin/tajo/TesterTajoInterpreter.java
----------------------------------------------------------------------
diff --git a/tajo/src/test/java/org/apache/zeppelin/tajo/TesterTajoInterpreter.java b/tajo/src/test/java/org/apache/zeppelin/tajo/TesterTajoInterpreter.java
new file mode 100644
index 0000000..f0eacee
--- /dev/null
+++ b/tajo/src/test/java/org/apache/zeppelin/tajo/TesterTajoInterpreter.java
@@ -0,0 +1,36 @@
+/**
+ * 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.zeppelin.tajo;
+
+import java.sql.Connection;
+import java.sql.SQLException;
+import java.util.Properties;
+
+public class TesterTajoInterpreter extends TajoInterpreter {
+
+ public TesterTajoInterpreter(Properties property) {
+ super(property);
+ }
+
+ @Override
+ public Connection getJdbcConnection()
+ throws SQLException {
+ return new TesterConnection();
+ }
+}
http://git-wip-us.apache.org/repos/asf/incubator-zeppelin/blob/3a4ab1ad/zeppelin-zengine/src/main/java/org/apache/zeppelin/conf/ZeppelinConfiguration.java
----------------------------------------------------------------------
diff --git a/zeppelin-zengine/src/main/java/org/apache/zeppelin/conf/ZeppelinConfiguration.java b/zeppelin-zengine/src/main/java/org/apache/zeppelin/conf/ZeppelinConfiguration.java
index f5c816f..580860a 100644
--- a/zeppelin-zengine/src/main/java/org/apache/zeppelin/conf/ZeppelinConfiguration.java
+++ b/zeppelin-zengine/src/main/java/org/apache/zeppelin/conf/ZeppelinConfiguration.java
@@ -387,7 +387,8 @@ public class ZeppelinConfiguration extends XMLConfiguration {
+ "org.apache.zeppelin.markdown.Markdown,"
+ "org.apache.zeppelin.angular.AngularInterpreter,"
+ "org.apache.zeppelin.shell.ShellInterpreter,"
- + "org.apache.zeppelin.hive.HiveInterpreter"),
+ + "org.apache.zeppelin.hive.HiveInterpreter,"
+ + "org.apache.zeppelin.tajo.TajoInterpreter"),
ZEPPELIN_INTERPRETER_DIR("zeppelin.interpreter.dir", "interpreter"),
ZEPPELIN_ENCODING("zeppelin.encoding", "UTF-8"),
ZEPPELIN_NOTEBOOK_DIR("zeppelin.notebook.dir", "notebook"),
[2/2] incubator-zeppelin git commit: ZEPPELIN-45: Integrate Tajo with
Zeppelin
Posted by mo...@apache.org.
ZEPPELIN-45: Integrate Tajo with Zeppelin
I succeed to test on local tajo cluster and distributed tajo cluster and I borrowed some classes from apache commons dbcp2 for unit test implementation.
Please see following site.
https://issues.apache.org/jira/browse/ZEPPELIN-45
Author: JaeHwa Jung <bl...@apache.org>
This patch had conflicts when merged, resolved by
Committer: Lee moon soo <mo...@apache.org>
Closes #39 from blrunner/ZEPPELIN-45 and squashes the following commits:
50979c5 [JaeHwa Jung] Add protocol buffer version to properties.
328c233 [JaeHwa Jung] Merge branch 'master' of https://github.com/apache/incubator-zeppelin into ZEPPELIN-45
929fd4c [JaeHwa Jung] Clean up pom.xml
0d6ce05 [JaeHwa Jung] Update Tajo build order.
6a6506b [JaeHwa Jung] Update ZeppelinRestApiTest::getAvailableInterpreters
8f3de47 [JaeHwa Jung] ProtocolBuffer dependency failed occasionally.
44fe61f [JaeHwa Jung] Merge branch 'master' of https://github.com/apache/incubator-zeppelin into ZEPPELIN-45
fccb2d4 [JaeHwa Jung] Add TajoInterpreter to ZeppelinConfiguration
35d2d87 [JaeHwa Jung] Remove unnecessary properties.
3a71896 [JaeHwa Jung] ZEPPELIN-45: Integrate Tajo with Zeppelin
Project: http://git-wip-us.apache.org/repos/asf/incubator-zeppelin/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-zeppelin/commit/3a4ab1ad
Tree: http://git-wip-us.apache.org/repos/asf/incubator-zeppelin/tree/3a4ab1ad
Diff: http://git-wip-us.apache.org/repos/asf/incubator-zeppelin/diff/3a4ab1ad
Branch: refs/heads/master
Commit: 3a4ab1ad216b443b3bb77a8aa26c7b5d57ca6caa
Parents: b3b9c93
Author: JaeHwa Jung <bl...@apache.org>
Authored: Mon Apr 20 15:45:03 2015 +0900
Committer: Lee moon soo <mo...@apache.org>
Committed: Sat Apr 25 08:35:38 2015 +0900
----------------------------------------------------------------------
conf/zeppelin-site.xml.template | 2 +-
pom.xml | 2 +
tajo/pom.xml | 138 +++
.../apache/zeppelin/tajo/TajoInterpreter.java | 195 +++
.../zeppelin/tajo/TajoInterpreterTest.java | 72 ++
.../apache/zeppelin/tajo/TesterConnection.java | 379 ++++++
.../zeppelin/tajo/TesterDatabaseMetaData.java | 950 ++++++++++++++
.../apache/zeppelin/tajo/TesterResultSet.java | 1163 ++++++++++++++++++
.../zeppelin/tajo/TesterResultSetMetaData.java | 157 +++
.../apache/zeppelin/tajo/TesterStatement.java | 344 ++++++
.../zeppelin/tajo/TesterTajoInterpreter.java | 36 +
.../zeppelin/conf/ZeppelinConfiguration.java | 3 +-
12 files changed, 3439 insertions(+), 2 deletions(-)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/incubator-zeppelin/blob/3a4ab1ad/conf/zeppelin-site.xml.template
----------------------------------------------------------------------
diff --git a/conf/zeppelin-site.xml.template b/conf/zeppelin-site.xml.template
index 13d794c..fae1104 100644
--- a/conf/zeppelin-site.xml.template
+++ b/conf/zeppelin-site.xml.template
@@ -60,7 +60,7 @@
<property>
<name>zeppelin.interpreters</name>
- <value>org.apache.zeppelin.spark.SparkInterpreter,org.apache.zeppelin.spark.PySparkInterpreter,org.apache.zeppelin.spark.SparkSqlInterpreter,org.apache.zeppelin.spark.DepInterpreter,org.apache.zeppelin.markdown.Markdown,org.apache.zeppelin.angular.AngularInterpreter,org.apache.zeppelin.shell.ShellInterpreter,org.apache.zeppelin.hive.HiveInterpreter</value>
+ <value>org.apache.zeppelin.spark.SparkInterpreter,org.apache.zeppelin.spark.PySparkInterpreter,org.apache.zeppelin.spark.SparkSqlInterpreter,org.apache.zeppelin.spark.DepInterpreter,org.apache.zeppelin.markdown.Markdown,org.apache.zeppelin.angular.AngularInterpreter,org.apache.zeppelin.shell.ShellInterpreter,org.apache.zeppelin.hive.HiveInterpreter,org.apache.zeppelin.tajo.TajoInterpreter</value>
<description>Comma separated interpreter configurations. First interpreter become a default</description>
</property>
http://git-wip-us.apache.org/repos/asf/incubator-zeppelin/blob/3a4ab1ad/pom.xml
----------------------------------------------------------------------
diff --git a/pom.xml b/pom.xml
index 27ad467..343cbf9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -91,6 +91,7 @@
<module>angular</module>
<module>shell</module>
<module>hive</module>
+ <module>tajo</module>
<module>zeppelin-web</module>
<module>zeppelin-server</module>
<module>zeppelin-distribution</module>
@@ -113,6 +114,7 @@
<hbase.version>0.94.6</hbase.version>
<zookeeper.version>3.4.5</zookeeper.version>
<hive.version>0.12.0</hive.version>
+ <tajo.version>0.10.0</tajo.version>
<derby.version>10.4.2.0</derby.version>
<parquet.version>1.4.3</parquet.version>
<jblas.version>1.2.3</jblas.version>
http://git-wip-us.apache.org/repos/asf/incubator-zeppelin/blob/3a4ab1ad/tajo/pom.xml
----------------------------------------------------------------------
diff --git a/tajo/pom.xml b/tajo/pom.xml
new file mode 100644
index 0000000..e7030f9
--- /dev/null
+++ b/tajo/pom.xml
@@ -0,0 +1,138 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ ~ 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.
+ -->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+ <modelVersion>4.0.0</modelVersion>
+
+ <parent>
+ <artifactId>zeppelin</artifactId>
+ <groupId>org.apache.zeppelin</groupId>
+ <version>0.5.0-SNAPSHOT</version>
+ </parent>
+
+ <groupId>org.apache.zeppelin</groupId>
+ <artifactId>zeppelin-tajo</artifactId>
+ <packaging>jar</packaging>
+ <version>0.5.0-SNAPSHOT</version>
+ <name>Zeppelin: Tajo interpreter</name>
+ <url>http://www.apache.org</url>
+
+ <properties>
+ <protobuf.version>2.5.0</protobuf.version>
+ </properties>
+
+ <dependencies>
+ <dependency>
+ <groupId>org.apache.zeppelin</groupId>
+ <artifactId>zeppelin-interpreter</artifactId>
+ <version>${project.version}</version>
+ <scope>provided</scope>
+ </dependency>
+
+ <dependency>
+ <groupId>org.slf4j</groupId>
+ <artifactId>slf4j-api</artifactId>
+ </dependency>
+
+ <dependency>
+ <groupId>org.slf4j</groupId>
+ <artifactId>slf4j-log4j12</artifactId>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.tajo</groupId>
+ <artifactId>tajo-jdbc</artifactId>
+ <version>${tajo.version}</version>
+ </dependency>
+
+ <dependency>
+ <groupId>junit</groupId>
+ <artifactId>junit</artifactId>
+ <scope>test</scope>
+ </dependency>
+
+ </dependencies>
+
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-deploy-plugin</artifactId>
+ <version>2.7</version>
+ <configuration>
+ <skip>true</skip>
+ </configuration>
+ </plugin>
+
+ <plugin>
+ <artifactId>maven-enforcer-plugin</artifactId>
+ <version>1.3.1</version>
+ <executions>
+ <execution>
+ <id>enforce</id>
+ <phase>none</phase>
+ </execution>
+ </executions>
+ </plugin>
+
+ <plugin>
+ <artifactId>maven-dependency-plugin</artifactId>
+ <version>2.8</version>
+ <executions>
+ <execution>
+ <id>copy-dependencies</id>
+ <phase>package</phase>
+ <goals>
+ <goal>copy-dependencies</goal>
+ </goals>
+ <configuration>
+ <outputDirectory>${project.build.directory}/../../interpreter/tajo</outputDirectory>
+ <overWriteReleases>false</overWriteReleases>
+ <overWriteSnapshots>false</overWriteSnapshots>
+ <overWriteIfNewer>true</overWriteIfNewer>
+ <includeScope>runtime</includeScope>
+ </configuration>
+ </execution>
+ <execution>
+ <id>copy-artifact</id>
+ <phase>package</phase>
+ <goals>
+ <goal>copy</goal>
+ </goals>
+ <configuration>
+ <outputDirectory>${project.build.directory}/../../interpreter/tajo</outputDirectory>
+ <overWriteReleases>false</overWriteReleases>
+ <overWriteSnapshots>false</overWriteSnapshots>
+ <overWriteIfNewer>true</overWriteIfNewer>
+ <includeScope>runtime</includeScope>
+ <artifactItems>
+ <artifactItem>
+ <groupId>${project.groupId}</groupId>
+ <artifactId>${project.artifactId}</artifactId>
+ <version>${project.version}</version>
+ <type>${project.packaging}</type>
+ </artifactItem>
+ </artifactItems>
+ </configuration>
+ </execution>
+ </executions>
+ </plugin>
+ </plugins>
+ </build>
+
+
+</project>
\ No newline at end of file
http://git-wip-us.apache.org/repos/asf/incubator-zeppelin/blob/3a4ab1ad/tajo/src/main/java/org/apache/zeppelin/tajo/TajoInterpreter.java
----------------------------------------------------------------------
diff --git a/tajo/src/main/java/org/apache/zeppelin/tajo/TajoInterpreter.java b/tajo/src/main/java/org/apache/zeppelin/tajo/TajoInterpreter.java
new file mode 100644
index 0000000..d197903
--- /dev/null
+++ b/tajo/src/main/java/org/apache/zeppelin/tajo/TajoInterpreter.java
@@ -0,0 +1,195 @@
+/**
+ * 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.zeppelin.tajo;
+
+import java.sql.*;
+import java.util.List;
+import java.util.Properties;
+
+import org.apache.zeppelin.interpreter.*;
+import org.apache.commons.lang.StringUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import org.apache.zeppelin.interpreter.InterpreterResult.Code;
+import org.apache.zeppelin.scheduler.Scheduler;
+import org.apache.zeppelin.scheduler.SchedulerFactory;
+
+/**
+ * Tajo interpreter for Zeppelin.
+ */
+public class TajoInterpreter extends Interpreter {
+ private Logger logger = LoggerFactory.getLogger(TajoInterpreter.class);
+
+ private Connection connection;
+ private Statement statement;
+ private Exception exceptionOnConnect;
+
+ public static final String TAJO_JDBC_URI = "tajo.jdbc.uri";
+ public static final String TAJO_DRIVER_NAME = "org.apache.tajo.jdbc.TajoDriver";
+
+ static {
+ Interpreter.register(
+ "tajo",
+ "tajo",
+ TajoInterpreter.class.getName(),
+ new InterpreterPropertyBuilder()
+ .add(TAJO_JDBC_URI, "jdbc:tajo://localhost:26002/default", "The URL for TajoServer.")
+ .build());
+ }
+
+ public TajoInterpreter(Properties property) {
+ super(property);
+ }
+
+ public Connection getJdbcConnection() throws SQLException {
+ return DriverManager.getConnection(getProperty(TAJO_JDBC_URI));
+ }
+
+ @Override
+ public void open() {
+ logger.info("Jdbc open connection called!");
+ try {
+ Class.forName(TAJO_DRIVER_NAME);
+ } catch (ClassNotFoundException e) {
+ logger.error("Can not open connection", e);
+ exceptionOnConnect = e;
+ return;
+ }
+ try {
+ connection = getJdbcConnection();
+ exceptionOnConnect = null;
+ logger.info("Successfully created connection");
+ }
+ catch (SQLException e) {
+ logger.error("Cannot open connection", e);
+ exceptionOnConnect = e;
+ }
+ }
+
+ @Override
+ public void close() {
+ try {
+ if (connection != null) {
+ connection.close();
+ }
+ }
+ catch (SQLException e) {
+ logger.error("Cannot close connection", e);
+ }
+ finally {
+ connection = null;
+ exceptionOnConnect = null;
+ }
+ }
+
+ private InterpreterResult executeSql(String sql) {
+ try {
+ if (exceptionOnConnect != null) {
+ return new InterpreterResult(Code.ERROR, exceptionOnConnect.getMessage());
+ }
+ statement = connection.createStatement();
+ StringBuilder msg = null;
+ if (StringUtils.containsIgnoreCase(sql, "EXPLAIN ")) {
+ //return the explain as text, make this visual explain later
+ msg = new StringBuilder();
+ }
+ else {
+ msg = new StringBuilder("%table ");
+ }
+
+ ResultSet res = statement.executeQuery(sql);
+ try {
+ ResultSetMetaData md = res.getMetaData();
+ for (int i = 1; i < md.getColumnCount() + 1; i++) {
+ if (i == 1) {
+ msg.append(md.getColumnName(i));
+ } else {
+ msg.append("\t" + md.getColumnName(i));
+ }
+ }
+ msg.append("\n");
+ while (res.next()) {
+ for (int i = 1; i < md.getColumnCount() + 1; i++) {
+ msg.append(res.getString(i) + "\t");
+ }
+ msg.append("\n");
+ }
+ }
+ finally {
+ try {
+ res.close();
+ statement.close();
+ }
+ finally {
+ statement = null;
+ }
+ }
+
+ InterpreterResult interpreterResult = new InterpreterResult(Code.SUCCESS, msg.toString());
+ return interpreterResult;
+ }
+ catch (SQLException ex) {
+ logger.error("Can not run " + sql, ex);
+ return new InterpreterResult(Code.ERROR, ex.getMessage());
+ }
+ }
+
+ @Override
+ public InterpreterResult interpret(String cmd, InterpreterContext contextInterpreter) {
+ logger.info("Run SQL command '" + cmd + "'");
+ return executeSql(cmd);
+ }
+
+ @Override
+ public void cancel(InterpreterContext context) {
+ // Currently, Tajo doesn't provide JDBC cancel method. It will be implemented in
+ // Tajo 0.11.0 version. You can find related issue progress at TAJO-751.
+// if (statement != null) {
+// try {
+// statement.cancel();
+// }
+// catch (SQLException ex) {
+// }
+// finally {
+// statement = null;
+// }
+// }
+ }
+
+ @Override
+ public FormType getFormType() {
+ return FormType.SIMPLE;
+ }
+
+ @Override
+ public int getProgress(InterpreterContext context) {
+ return 0;
+ }
+
+ @Override
+ public Scheduler getScheduler() {
+ return SchedulerFactory.singleton().createOrGetFIFOScheduler(
+ TajoInterpreter.class.getName() + this.hashCode());
+ }
+
+ @Override
+ public List<String> completion(String buf, int cursor) {
+ return null;
+ }
+}
http://git-wip-us.apache.org/repos/asf/incubator-zeppelin/blob/3a4ab1ad/tajo/src/test/java/org/apache/zeppelin/tajo/TajoInterpreterTest.java
----------------------------------------------------------------------
diff --git a/tajo/src/test/java/org/apache/zeppelin/tajo/TajoInterpreterTest.java b/tajo/src/test/java/org/apache/zeppelin/tajo/TajoInterpreterTest.java
new file mode 100644
index 0000000..abe1ca6
--- /dev/null
+++ b/tajo/src/test/java/org/apache/zeppelin/tajo/TajoInterpreterTest.java
@@ -0,0 +1,72 @@
+/**
+ * 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.zeppelin.tajo;
+
+import com.google.gson.JsonParseException;
+import org.apache.tajo.jdbc.TajoDriver;
+import org.apache.zeppelin.interpreter.InterpreterResult;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.Properties;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+/**
+ * Tajo interpreter unit tests
+ */
+public class TajoInterpreterTest {
+ @Before
+ public void setUp() throws Exception {
+ }
+
+ @After
+ public void tearDown() throws Exception {
+ }
+
+ @Test
+ public void test() {
+ TajoInterpreter t = new TesterTajoInterpreter(new Properties());
+ t.open();
+
+ Class clazz;
+ try {
+ clazz = Class.forName(t.TAJO_DRIVER_NAME);
+ } catch (ClassNotFoundException e) {
+ e.printStackTrace();
+ throw new JsonParseException(e);
+ }
+
+ // check tajo jdbc driver
+ assertNotNull(clazz);
+
+ // simple select test
+ InterpreterResult result = t.interpret("select * from t", null);
+ assertEquals(result.type(), InterpreterResult.Type.TABLE);
+
+ // explain test
+ result = t.interpret("explain select * from t", null);
+ assertEquals(result.type(), InterpreterResult.Type.TEXT);
+ t.close();
+ }
+}
\ No newline at end of file
http://git-wip-us.apache.org/repos/asf/incubator-zeppelin/blob/3a4ab1ad/tajo/src/test/java/org/apache/zeppelin/tajo/TesterConnection.java
----------------------------------------------------------------------
diff --git a/tajo/src/test/java/org/apache/zeppelin/tajo/TesterConnection.java b/tajo/src/test/java/org/apache/zeppelin/tajo/TesterConnection.java
new file mode 100644
index 0000000..e0a68e2
--- /dev/null
+++ b/tajo/src/test/java/org/apache/zeppelin/tajo/TesterConnection.java
@@ -0,0 +1,379 @@
+/**
+ * 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.zeppelin.tajo;
+
+
+import java.sql.*;
+import java.util.Map;
+import java.util.Properties;
+import java.util.concurrent.Executor;
+
+/**
+ * This is borrowed from Apache Commons DBCP2.
+ *
+ * A dummy {@link java.sql.Connection}, for testing purposes.
+ */
+public class TesterConnection implements Connection {
+ protected boolean _open = true;
+ protected boolean _autoCommit = true;
+ protected int _transactionIsolation = 1;
+ protected DatabaseMetaData _metaData = new TesterDatabaseMetaData();
+ protected String _catalog = null;
+ protected Map<String,Class<?>> _typeMap = null;
+ protected boolean _readOnly = false;
+ protected SQLWarning warnings = null;
+ protected String username = null;
+ protected Exception failure;
+
+ public String getUsername() {
+ return this.username;
+ }
+
+ public void setWarnings(SQLWarning warning) {
+ this.warnings = warning;
+ }
+
+ @Override
+ public void clearWarnings() throws SQLException {
+ checkOpen();
+ warnings = null;
+ }
+
+ @Override
+ public void close() throws SQLException {
+ checkFailure();
+ _open = false;
+ }
+
+ @Override
+ public void commit() throws SQLException {
+ checkOpen();
+ if (isReadOnly()) {
+ throw new SQLException("Cannot commit a readonly connection");
+ }
+ }
+
+ @Override
+ public Statement createStatement() throws SQLException {
+ checkOpen();
+ return new TesterStatement(this);
+ }
+
+ @Override
+ public Statement createStatement(int resultSetType, int resultSetConcurrency) throws SQLException {
+ checkOpen();
+ return new TesterStatement(this);
+ }
+
+ @Override
+ public boolean getAutoCommit() throws SQLException {
+ checkOpen();
+ return _autoCommit;
+ }
+
+ @Override
+ public String getCatalog() throws SQLException {
+ checkOpen();
+ return _catalog;
+ }
+
+ @Override
+ public DatabaseMetaData getMetaData() throws SQLException {
+ checkOpen();
+ return _metaData;
+ }
+
+ @Override
+ public int getTransactionIsolation() throws SQLException {
+ checkOpen();
+ return _transactionIsolation;
+ }
+
+ @Override
+ public Map<String,Class<?>> getTypeMap() throws SQLException {
+ checkOpen();
+ return _typeMap;
+ }
+
+ @Override
+ public SQLWarning getWarnings() throws SQLException {
+ checkOpen();
+ return warnings;
+ }
+
+ @Override
+ public boolean isClosed() throws SQLException {
+ checkFailure();
+ return !_open;
+ }
+
+ @Override
+ public boolean isReadOnly() throws SQLException {
+ checkOpen();
+ return _readOnly;
+ }
+
+ @Override
+ public String nativeSQL(String sql) throws SQLException {
+ checkOpen();
+ return sql;
+ }
+
+ @Override
+ public CallableStatement prepareCall(String sql) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public PreparedStatement prepareStatement(String sql) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void rollback() throws SQLException {
+ checkOpen();
+ if (isReadOnly()) {
+ throw new SQLException("Cannot rollback a readonly connection");
+ }
+ }
+
+ @Override
+ public void setAutoCommit(boolean autoCommit) throws SQLException {
+ checkOpen();
+ _autoCommit = autoCommit;
+ }
+
+ @Override
+ public void setCatalog(String catalog) throws SQLException {
+ checkOpen();
+ _catalog = catalog;
+ }
+
+ @Override
+ public void setReadOnly(boolean readOnly) throws SQLException {
+ checkOpen();
+ _readOnly = readOnly;
+ }
+
+ @Override
+ public void setTransactionIsolation(int level) throws SQLException {
+ checkOpen();
+ _transactionIsolation = level;
+ }
+
+ @Override
+ public void setTypeMap(Map<String,Class<?>> map) throws SQLException {
+ checkOpen();
+ _typeMap = map;
+ }
+
+ protected void checkOpen() throws SQLException {
+ if(!_open) {
+ throw new SQLException("Connection is closed.");
+ }
+ checkFailure();
+ }
+
+ protected void checkFailure() throws SQLException {
+ if (failure != null) {
+ if(failure instanceof SQLException) {
+ throw (SQLException)failure;
+ } else {
+ throw new SQLException("TesterConnection failure", failure);
+ }
+ }
+ }
+
+ public void setFailure(Exception failure) {
+ this.failure = failure;
+ }
+
+ @Override
+ public int getHoldability() throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void setHoldability(int holdability) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public java.sql.Savepoint setSavepoint() throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public java.sql.Savepoint setSavepoint(String name) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void rollback(java.sql.Savepoint savepoint) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void releaseSavepoint(java.sql.Savepoint savepoint) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public Statement createStatement(int resultSetType,
+ int resultSetConcurrency,
+ int resultSetHoldability)
+ throws SQLException {
+ return createStatement();
+ }
+
+ @Override
+ public PreparedStatement prepareStatement(String sql, int resultSetType,
+ int resultSetConcurrency,
+ int resultSetHoldability)
+ throws SQLException {
+ return prepareStatement(sql);
+ }
+
+ @Override
+ public CallableStatement prepareCall(String sql, int resultSetType,
+ int resultSetConcurrency,
+ int resultSetHoldability)
+ throws SQLException {
+ return prepareCall(sql);
+ }
+
+ @Override
+ public PreparedStatement prepareStatement(String sql, int autoGeneratedKeys)
+ throws SQLException {
+ return prepareStatement(sql);
+ }
+
+ @Override
+ public PreparedStatement prepareStatement(String sql, int columnIndexes[])
+ throws SQLException {
+ return prepareStatement(sql);
+ }
+
+ @Override
+ public PreparedStatement prepareStatement(String sql, String columnNames[])
+ throws SQLException {
+ return prepareStatement(sql);
+ }
+
+
+ @Override
+ public boolean isWrapperFor(Class<?> iface) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public <T> T unwrap(Class<T> iface) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public Array createArrayOf(String typeName, Object[] elements) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public Blob createBlob() throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public Clob createClob() throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public NClob createNClob() throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public SQLXML createSQLXML() throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public Struct createStruct(String typeName, Object[] attributes) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public boolean isValid(int timeout) throws SQLException {
+ return _open;
+ }
+
+ @Override
+ public void setClientInfo(String name, String value) throws SQLClientInfoException {
+ throw new SQLClientInfoException();
+ }
+
+ @Override
+ public void setClientInfo(Properties properties) throws SQLClientInfoException {
+ throw new SQLClientInfoException();
+ }
+
+ @Override
+ public Properties getClientInfo() throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public String getClientInfo(String name) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void setSchema(String schema) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public String getSchema() throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void abort(Executor executor) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void setNetworkTimeout(Executor executor, int milliseconds)
+ throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public int getNetworkTimeout() throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+}
http://git-wip-us.apache.org/repos/asf/incubator-zeppelin/blob/3a4ab1ad/tajo/src/test/java/org/apache/zeppelin/tajo/TesterDatabaseMetaData.java
----------------------------------------------------------------------
diff --git a/tajo/src/test/java/org/apache/zeppelin/tajo/TesterDatabaseMetaData.java b/tajo/src/test/java/org/apache/zeppelin/tajo/TesterDatabaseMetaData.java
new file mode 100644
index 0000000..b293991
--- /dev/null
+++ b/tajo/src/test/java/org/apache/zeppelin/tajo/TesterDatabaseMetaData.java
@@ -0,0 +1,950 @@
+/**
+ * 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.zeppelin.tajo;
+
+import java.sql.Connection;
+import java.sql.DatabaseMetaData;
+import java.sql.ResultSet;
+import java.sql.RowIdLifetime;
+import java.sql.SQLException;
+
+/**
+ * This is borrowed from Apache Commons DBCP2.
+ *
+ * Dummy {@link DatabaseMetaData} for testing purposes. Implements only those
+ * methods required by the test cases.
+ */
+public class TesterDatabaseMetaData implements DatabaseMetaData {
+
+ @Override
+ public boolean allProceduresAreCallable() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean allTablesAreSelectable() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean dataDefinitionCausesTransactionCommit() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean dataDefinitionIgnoredInTransactions() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean deletesAreDetected(int type) throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean doesMaxRowSizeIncludeBlobs() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public ResultSet getAttributes(String catalog, String schemaPattern,
+ String typeNamePattern, String attributeNamePattern)
+ throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getBestRowIdentifier(String catalog, String schema,
+ String table, int scope, boolean nullable) throws SQLException {
+ return null;
+ }
+
+ @Override
+ public String getCatalogSeparator() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public String getCatalogTerm() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getCatalogs() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getColumnPrivileges(String catalog, String schema,
+ String table, String columnNamePattern) throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getColumns(String catalog, String schemaPattern,
+ String tableNamePattern, String columnNamePattern)
+ throws SQLException {
+ return null;
+ }
+
+ @Override
+ public Connection getConnection() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getCrossReference(String parentCatalog,
+ String parentSchema, String parentTable, String foreignCatalog,
+ String foreignSchema, String foreignTable) throws SQLException {
+ return null;
+ }
+
+ @Override
+ public int getDatabaseMajorVersion() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getDatabaseMinorVersion() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public String getDatabaseProductName() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public String getDatabaseProductVersion() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public int getDefaultTransactionIsolation() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getDriverMajorVersion() {
+ return 0;
+ }
+
+ @Override
+ public int getDriverMinorVersion() {
+ return 0;
+ }
+
+ @Override
+ public String getDriverName() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public String getDriverVersion() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getExportedKeys(String catalog, String schema, String table)
+ throws SQLException {
+ return null;
+ }
+
+ @Override
+ public String getExtraNameCharacters() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public String getIdentifierQuoteString() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getImportedKeys(String catalog, String schema, String table)
+ throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getIndexInfo(String catalog, String schema, String table,
+ boolean unique, boolean approximate) throws SQLException {
+ return null;
+ }
+
+ @Override
+ public int getJDBCMajorVersion() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getJDBCMinorVersion() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getMaxBinaryLiteralLength() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getMaxCatalogNameLength() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getMaxCharLiteralLength() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getMaxColumnNameLength() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getMaxColumnsInGroupBy() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getMaxColumnsInIndex() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getMaxColumnsInOrderBy() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getMaxColumnsInSelect() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getMaxColumnsInTable() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getMaxConnections() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getMaxCursorNameLength() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getMaxIndexLength() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getMaxProcedureNameLength() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getMaxRowSize() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getMaxSchemaNameLength() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getMaxStatementLength() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getMaxStatements() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getMaxTableNameLength() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getMaxTablesInSelect() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getMaxUserNameLength() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public String getNumericFunctions() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getPrimaryKeys(String catalog, String schema, String table)
+ throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getProcedureColumns(String catalog, String schemaPattern,
+ String procedureNamePattern, String columnNamePattern)
+ throws SQLException {
+ return null;
+ }
+
+ @Override
+ public String getProcedureTerm() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getProcedures(String catalog, String schemaPattern,
+ String procedureNamePattern) throws SQLException {
+ return null;
+ }
+
+ @Override
+ public int getResultSetHoldability() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public String getSQLKeywords() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public int getSQLStateType() throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public String getSchemaTerm() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getSchemas() throws SQLException {
+ return new TesterResultSet(null);
+ }
+
+ @Override
+ public String getSearchStringEscape() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public String getStringFunctions() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getSuperTables(String catalog, String schemaPattern,
+ String tableNamePattern) throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getSuperTypes(String catalog, String schemaPattern,
+ String typeNamePattern) throws SQLException {
+ return null;
+ }
+
+ @Override
+ public String getSystemFunctions() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getTablePrivileges(String catalog, String schemaPattern,
+ String tableNamePattern) throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getTableTypes() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getTables(String catalog, String schemaPattern,
+ String tableNamePattern, String[] types) throws SQLException {
+ return null;
+ }
+
+ @Override
+ public String getTimeDateFunctions() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getTypeInfo() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getUDTs(String catalog, String schemaPattern,
+ String typeNamePattern, int[] types) throws SQLException {
+ return null;
+ }
+
+ @Override
+ public String getURL() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public String getUserName() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getVersionColumns(String catalog, String schema,
+ String table) throws SQLException {
+ return null;
+ }
+
+ @Override
+ public boolean insertsAreDetected(int type) throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean isCatalogAtStart() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean isReadOnly() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean locatorsUpdateCopy() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean nullPlusNonNullIsNull() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean nullsAreSortedAtEnd() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean nullsAreSortedAtStart() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean nullsAreSortedHigh() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean nullsAreSortedLow() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean othersDeletesAreVisible(int type) throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean othersInsertsAreVisible(int type) throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean othersUpdatesAreVisible(int type) throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean ownDeletesAreVisible(int type) throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean ownInsertsAreVisible(int type) throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean ownUpdatesAreVisible(int type) throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean storesLowerCaseIdentifiers() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean storesLowerCaseQuotedIdentifiers() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean storesMixedCaseIdentifiers() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean storesMixedCaseQuotedIdentifiers() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean storesUpperCaseIdentifiers() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean storesUpperCaseQuotedIdentifiers() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsANSI92EntryLevelSQL() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsANSI92FullSQL() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsANSI92IntermediateSQL() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsAlterTableWithAddColumn() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsAlterTableWithDropColumn() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsBatchUpdates() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsCatalogsInDataManipulation() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsCatalogsInIndexDefinitions() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsCatalogsInPrivilegeDefinitions() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsCatalogsInProcedureCalls() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsCatalogsInTableDefinitions() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsColumnAliasing() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsConvert() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsConvert(int fromType, int toType)
+ throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsCoreSQLGrammar() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsCorrelatedSubqueries() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsDataDefinitionAndDataManipulationTransactions()
+ throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsDataManipulationTransactionsOnly()
+ throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsDifferentTableCorrelationNames() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsExpressionsInOrderBy() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsExtendedSQLGrammar() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsFullOuterJoins() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsGetGeneratedKeys() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsGroupBy() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsGroupByBeyondSelect() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsGroupByUnrelated() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsIntegrityEnhancementFacility() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsLikeEscapeClause() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsLimitedOuterJoins() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsMinimumSQLGrammar() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsMixedCaseIdentifiers() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsMixedCaseQuotedIdentifiers() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsMultipleOpenResults() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsMultipleResultSets() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsMultipleTransactions() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsNamedParameters() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsNonNullableColumns() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsOpenCursorsAcrossCommit() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsOpenCursorsAcrossRollback() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsOpenStatementsAcrossCommit() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsOpenStatementsAcrossRollback() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsOrderByUnrelated() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsOuterJoins() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsPositionedDelete() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsPositionedUpdate() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsResultSetConcurrency(int type, int concurrency)
+ throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsResultSetHoldability(int holdability)
+ throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsResultSetType(int type) throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsSavepoints() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsSchemasInDataManipulation() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsSchemasInIndexDefinitions() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsSchemasInPrivilegeDefinitions() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsSchemasInProcedureCalls() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsSchemasInTableDefinitions() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsSelectForUpdate() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsStatementPooling() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsStoredProcedures() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsSubqueriesInComparisons() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsSubqueriesInExists() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsSubqueriesInIns() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsSubqueriesInQuantifieds() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsTableCorrelationNames() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsTransactionIsolationLevel(int level)
+ throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsTransactions() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsUnion() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsUnionAll() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean updatesAreDetected(int type) throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean usesLocalFilePerTable() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean usesLocalFiles() throws SQLException {
+ return false;
+ }
+
+ /* JDBC_4_ANT_KEY_BEGIN */
+
+ @Override
+ public boolean isWrapperFor(Class<?> iface) throws SQLException {
+ return false;
+ }
+
+ @Override
+ public <T> T unwrap(Class<T> iface) throws SQLException {
+ return null;
+ }
+
+ @Override
+ public RowIdLifetime getRowIdLifetime() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getSchemas(String catalog, String schemaPattern)
+ throws SQLException {
+ return null;
+ }
+
+ @Override
+ public boolean autoCommitFailureClosesAllResultSets() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean supportsStoredFunctionsUsingCallSyntax() throws SQLException {
+ return false;
+ }
+
+ @Override
+ public ResultSet getClientInfoProperties() throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getFunctionColumns(String catalog, String schemaPattern,
+ String functionNamePattern, String columnNamePattern)
+ throws SQLException {
+ return null;
+ }
+
+ @Override
+ public ResultSet getFunctions(String catalog, String schemaPattern,
+ String functionNamePattern) throws SQLException {
+ return null;
+ }
+
+ /* JDBC_4_ANT_KEY_END */
+
+ @Override
+ public ResultSet getPseudoColumns(String catalog, String schemaPattern,
+ String tableNamePattern, String columnNamePattern)
+ throws SQLException {
+ return null;
+ }
+
+ @Override
+ public boolean generatedKeyAlwaysReturned() throws SQLException {
+ return false;
+ }
+}
http://git-wip-us.apache.org/repos/asf/incubator-zeppelin/blob/3a4ab1ad/tajo/src/test/java/org/apache/zeppelin/tajo/TesterResultSet.java
----------------------------------------------------------------------
diff --git a/tajo/src/test/java/org/apache/zeppelin/tajo/TesterResultSet.java b/tajo/src/test/java/org/apache/zeppelin/tajo/TesterResultSet.java
new file mode 100644
index 0000000..dc174be
--- /dev/null
+++ b/tajo/src/test/java/org/apache/zeppelin/tajo/TesterResultSet.java
@@ -0,0 +1,1163 @@
+/**
+ * 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.zeppelin.tajo;
+
+import java.math.BigDecimal;
+import java.sql.*;
+import java.util.Calendar;
+import java.util.Map;
+import java.io.InputStream;
+import java.io.Reader;
+import java.io.UnsupportedEncodingException;
+
+/**
+ * This is borrowed from Apache Commons DBCP2.
+ *
+ * A dummy {@link java.sql.ResultSet}, for testing purposes.
+ */
+public class TesterResultSet implements ResultSet {
+ public TesterResultSet(Statement stmt) {
+ _statement = stmt;
+ }
+
+ public TesterResultSet(Statement stmt, Object[][] data) {
+ _statement = stmt;
+ _data = data;
+ }
+
+ public TesterResultSet(Statement stmt, int type, int concurrency) {
+ _statement = stmt;
+ _data = null;
+ _type = type;
+ _concurrency = concurrency;
+ }
+
+ protected int _type = ResultSet.TYPE_FORWARD_ONLY;
+ protected int _concurrency = ResultSet.CONCUR_READ_ONLY;
+
+ protected Object[][] _data = null;
+ protected int _currentRow = -1;
+
+ protected Statement _statement = null;
+ protected int _rowsLeft = 2;
+ protected boolean _open = true;
+
+ @Override
+ public boolean next() throws SQLException {
+ checkOpen();
+ if (_data != null) {
+ _currentRow++;
+ return _currentRow < _data.length;
+ }
+ else {
+ if(--_rowsLeft > 0) {
+ return true;
+ } else {
+ return false;
+ }
+ }
+ }
+
+ @Override
+ public void close() throws SQLException {
+ if (!_open) {
+ return;
+ }
+
+ // Not all result sets are generated from statements eg DatabaseMetaData
+ if (_statement != null) {
+ ((TesterStatement)_statement)._resultSet = null;
+ }
+
+ _open = false;
+ }
+
+ @Override
+ public boolean wasNull() throws SQLException {
+ checkOpen();
+ return false;
+ }
+
+ @Override
+ public String getString(int columnIndex) throws SQLException {
+ checkOpen();
+ if (columnIndex == -1) {
+ throw new SQLException("broken connection");
+ }
+ if (_data != null) {
+ return (String) getObject(columnIndex);
+ }
+ return "String" + columnIndex;
+ }
+
+ @Override
+ public boolean getBoolean(int columnIndex) throws SQLException {
+ checkOpen();
+ return true;
+ }
+
+ @Override
+ public byte getByte(int columnIndex) throws SQLException {
+ checkOpen();
+ return (byte)columnIndex;
+ }
+
+ @Override
+ public short getShort(int columnIndex) throws SQLException {
+ checkOpen();
+ return (short)columnIndex;
+ }
+
+ @Override
+ public int getInt(int columnIndex) throws SQLException {
+ checkOpen();
+ return (short)columnIndex;
+ }
+
+ @Override
+ public long getLong(int columnIndex) throws SQLException {
+ checkOpen();
+ return columnIndex;
+ }
+
+ @Override
+ public float getFloat(int columnIndex) throws SQLException {
+ checkOpen();
+ return columnIndex;
+ }
+
+ @Override
+ public double getDouble(int columnIndex) throws SQLException {
+ checkOpen();
+ return columnIndex;
+ }
+
+ /** @deprecated */
+ @Deprecated
+ @Override
+ public BigDecimal getBigDecimal(int columnIndex, int scale) throws SQLException {
+ checkOpen();
+ return new BigDecimal(columnIndex);
+ }
+
+ @Override
+ public byte[] getBytes(int columnIndex) throws SQLException {
+ checkOpen();
+ return new byte[] { (byte)columnIndex };
+ }
+
+ @Override
+ public java.sql.Date getDate(int columnIndex) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public java.sql.Time getTime(int columnIndex) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public java.sql.Timestamp getTimestamp(int columnIndex) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public java.io.InputStream getAsciiStream(int columnIndex) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ /** @deprecated */
+ @Deprecated
+ @Override
+ public java.io.InputStream getUnicodeStream(int columnIndex) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public java.io.InputStream getBinaryStream(int columnIndex) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public String getString(String columnName) throws SQLException {
+ checkOpen();
+ return columnName;
+ }
+
+ @Override
+ public boolean getBoolean(String columnName) throws SQLException {
+ checkOpen();
+ return true;
+ }
+
+ @Override
+ public byte getByte(String columnName) throws SQLException {
+ checkOpen();
+ return (byte)columnName.hashCode();
+ }
+
+ @Override
+ public short getShort(String columnName) throws SQLException {
+ checkOpen();
+ return (short)columnName.hashCode();
+ }
+
+ @Override
+ public int getInt(String columnName) throws SQLException {
+ checkOpen();
+ return columnName.hashCode();
+ }
+
+ @Override
+ public long getLong(String columnName) throws SQLException {
+ checkOpen();
+ return columnName.hashCode();
+ }
+
+ @Override
+ public float getFloat(String columnName) throws SQLException {
+ checkOpen();
+ return columnName.hashCode();
+ }
+
+ @Override
+ public double getDouble(String columnName) throws SQLException {
+ checkOpen();
+ return columnName.hashCode();
+ }
+
+ /** @deprecated */
+ @Deprecated
+ @Override
+ public BigDecimal getBigDecimal(String columnName, int scale) throws SQLException {
+ checkOpen();
+ return new BigDecimal(columnName.hashCode());
+ }
+
+ @Override
+ public byte[] getBytes(String columnName) throws SQLException {
+ checkOpen();
+ try {
+ return columnName.getBytes("UTF-8");
+ } catch (UnsupportedEncodingException e) {
+ // Impossible. JVMs are required to support UTF-8
+ return null;
+ }
+ }
+
+ @Override
+ public java.sql.Date getDate(String columnName) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public java.sql.Time getTime(String columnName) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public java.sql.Timestamp getTimestamp(String columnName) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public java.io.InputStream getAsciiStream(String columnName) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ /** @deprecated */
+ @Deprecated
+ @Override
+ public java.io.InputStream getUnicodeStream(String columnName) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public java.io.InputStream getBinaryStream(String columnName) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public SQLWarning getWarnings() throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public void clearWarnings() throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public String getCursorName() throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public ResultSetMetaData getMetaData() throws SQLException {
+ checkOpen();
+ return new TesterResultSetMetaData();
+ }
+
+ @Override
+ public Object getObject(int columnIndex) throws SQLException {
+ checkOpen();
+ if (_data != null) {
+ return _data[_currentRow][columnIndex-1];
+ }
+ return new Object();
+ }
+
+ @Override
+ public Object getObject(String columnName) throws SQLException {
+ checkOpen();
+ return columnName;
+ }
+
+ @Override
+ public int findColumn(String columnName) throws SQLException {
+ checkOpen();
+ return 1;
+ }
+
+
+ @Override
+ public java.io.Reader getCharacterStream(int columnIndex) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public java.io.Reader getCharacterStream(String columnName) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public BigDecimal getBigDecimal(int columnIndex) throws SQLException {
+ checkOpen();
+ return new BigDecimal(columnIndex);
+ }
+
+ @Override
+ public BigDecimal getBigDecimal(String columnName) throws SQLException {
+ checkOpen();
+ return new BigDecimal(columnName.hashCode());
+ }
+
+ @Override
+ public boolean isBeforeFirst() throws SQLException {
+ checkOpen();
+ return _rowsLeft == 2;
+ }
+
+ @Override
+ public boolean isAfterLast() throws SQLException {
+ checkOpen();
+ return _rowsLeft < 0;
+ }
+
+ @Override
+ public boolean isFirst() throws SQLException {
+ checkOpen();
+ return _rowsLeft == 1;
+ }
+
+ @Override
+ public boolean isLast() throws SQLException {
+ checkOpen();
+ return _rowsLeft == 0;
+ }
+
+ @Override
+ public void beforeFirst() throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void afterLast() throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public boolean first() throws SQLException {
+ checkOpen();
+ return false;
+ }
+
+ @Override
+ public boolean last() throws SQLException {
+ checkOpen();
+ return false;
+ }
+
+ @Override
+ public int getRow() throws SQLException {
+ checkOpen();
+ return 3 - _rowsLeft;
+ }
+
+ @Override
+ public boolean absolute( int row ) throws SQLException {
+ checkOpen();
+ return false;
+ }
+
+ @Override
+ public boolean relative( int rows ) throws SQLException {
+ checkOpen();
+ return false;
+ }
+
+ @Override
+ public boolean previous() throws SQLException {
+ checkOpen();
+ return false;
+ }
+
+ @Override
+ public void setFetchDirection(int direction) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public int getFetchDirection() throws SQLException {
+ checkOpen();
+ return 1;
+ }
+
+ @Override
+ public void setFetchSize(int rows) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public int getFetchSize() throws SQLException {
+ checkOpen();
+ return 2;
+ }
+
+ @Override
+ public int getType() throws SQLException {
+ return this._type;
+ }
+
+ @Override
+ public int getConcurrency() throws SQLException {
+ return this._concurrency;
+ }
+
+ @Override
+ public boolean rowUpdated() throws SQLException {
+ checkOpen();
+ return false;
+ }
+
+ @Override
+ public boolean rowInserted() throws SQLException {
+ checkOpen();
+ return false;
+ }
+
+ @Override
+ public boolean rowDeleted() throws SQLException {
+ checkOpen();
+ return false;
+ }
+
+ @Override
+ public void updateNull(int columnIndex) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateBoolean(int columnIndex, boolean x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateByte(int columnIndex, byte x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateShort(int columnIndex, short x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateInt(int columnIndex, int x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateLong(int columnIndex, long x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateFloat(int columnIndex, float x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateDouble(int columnIndex, double x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateBigDecimal(int columnIndex, BigDecimal x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateString(int columnIndex, String x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateBytes(int columnIndex, byte x[]) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateDate(int columnIndex, java.sql.Date x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateTime(int columnIndex, java.sql.Time x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateTimestamp(int columnIndex, java.sql.Timestamp x) throws SQLException {
+ checkOpen();
+ }
+
+
+ @Override
+ public void updateAsciiStream(int columnIndex,
+ java.io.InputStream x,
+ int length) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateBinaryStream(int columnIndex,
+ java.io.InputStream x,
+ int length) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateCharacterStream(int columnIndex,
+ java.io.Reader x,
+ int length) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateObject(int columnIndex, Object x, int scale)
+ throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateObject(int columnIndex, Object x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateNull(String columnName) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateBoolean(String columnName, boolean x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateByte(String columnName, byte x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateShort(String columnName, short x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateInt(String columnName, int x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateLong(String columnName, long x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateFloat(String columnName, float x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateDouble(String columnName, double x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateBigDecimal(String columnName, BigDecimal x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateString(String columnName, String x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateBytes(String columnName, byte x[]) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateDate(String columnName, java.sql.Date x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateTime(String columnName, java.sql.Time x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateTimestamp(String columnName, java.sql.Timestamp x)
+ throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateAsciiStream(String columnName,
+ java.io.InputStream x,
+ int length) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateBinaryStream(String columnName,
+ java.io.InputStream x,
+ int length) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateCharacterStream(String columnName,
+ java.io.Reader reader,
+ int length) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateObject(String columnName, Object x, int scale)
+ throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateObject(String columnName, Object x) throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void insertRow() throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void updateRow() throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void deleteRow() throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void refreshRow() throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void cancelRowUpdates() throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void moveToInsertRow() throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public void moveToCurrentRow() throws SQLException {
+ checkOpen();
+ }
+
+ @Override
+ public Statement getStatement() throws SQLException {
+ checkOpen();
+ return _statement;
+ }
+
+
+ @Override
+ public Object getObject(int i, Map<String,Class<?>> map) throws SQLException {
+ checkOpen();
+ return new Object();
+ }
+
+ @Override
+ public Ref getRef(int i) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public Blob getBlob(int i) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public Clob getClob(int i) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public Array getArray(int i) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public Object getObject(String colName, Map<String,Class<?>> map) throws SQLException {
+ checkOpen();
+ return colName;
+ }
+
+ @Override
+ public Ref getRef(String colName) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public Blob getBlob(String colName) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public Clob getClob(String colName) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public Array getArray(String colName) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public java.sql.Date getDate(int columnIndex, Calendar cal) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public java.sql.Date getDate(String columnName, Calendar cal) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public java.sql.Time getTime(int columnIndex, Calendar cal) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public java.sql.Time getTime(String columnName, Calendar cal) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public java.sql.Timestamp getTimestamp(int columnIndex, Calendar cal) throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ @Override
+ public java.sql.Timestamp getTimestamp(String columnName, Calendar cal)
+ throws SQLException {
+ checkOpen();
+ return null;
+ }
+
+ protected void checkOpen() throws SQLException {
+ if(!_open) {
+ throw new SQLException("ResultSet is closed.");
+ }
+ }
+
+ @Override
+ public java.net.URL getURL(int columnIndex) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public java.net.URL getURL(String columnName) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateRef(int columnIndex, java.sql.Ref x) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateRef(String columnName, java.sql.Ref x) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateBlob(int columnIndex, java.sql.Blob x) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateBlob(String columnName, java.sql.Blob x)
+ throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateClob(int columnIndex, java.sql.Clob x)
+ throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateClob(String columnName, java.sql.Clob x)
+ throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateArray(int columnIndex, java.sql.Array x)
+ throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateArray(String columnName, java.sql.Array x)
+ throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+
+ @Override
+ public boolean isWrapperFor(Class<?> iface) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public <T> T unwrap(Class<T> iface) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public RowId getRowId(int columnIndex) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public RowId getRowId(String columnLabel) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateRowId(int columnIndex, RowId value) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateRowId(String columnLabel, RowId value) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public int getHoldability() throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public boolean isClosed() throws SQLException {
+ return !_open;
+ }
+
+ @Override
+ public void updateNString(int columnIndex, String value) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateNString(String columnLabel, String value) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateNClob(int columnIndex, NClob value) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateNClob(String columnLabel, NClob value) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public NClob getNClob(int columnIndex) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public NClob getNClob(String columnLabel) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public SQLXML getSQLXML(int columnIndex) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public SQLXML getSQLXML(String columnLabel) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateSQLXML(int columnIndex, SQLXML value) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateSQLXML(String columnLabel, SQLXML value) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public String getNString(int columnIndex) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public String getNString(String columnLabel) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public Reader getNCharacterStream(int columnIndex) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public Reader getNCharacterStream(String columnLabel) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateNCharacterStream(int columnIndex, Reader reader, long length) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateNCharacterStream(String columnLabel, Reader reader, long length) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateAsciiStream(int columnIndex, InputStream inputStream, long length) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateBinaryStream(int columnIndex, InputStream inputStream, long length) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateCharacterStream(int columnIndex, Reader reader, long length) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateAsciiStream(String columnLabel, InputStream inputStream, long length) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateBinaryStream(String columnLabel, InputStream inputStream, long length) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateCharacterStream(String columnLabel, Reader reader, long length) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateBlob(int columnIndex, InputStream inputStream, long length) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateBlob(String columnLabel, InputStream inputStream, long length) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateClob(int columnIndex, Reader reader, long length) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateClob(String columnLabel, Reader reader, long length) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateNClob(int columnIndex, Reader reader, long length) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateNClob(String columnLabel, Reader reader, long length) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateNCharacterStream(int columnIndex, Reader reader) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateNCharacterStream(String columnLabel, Reader reader) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateAsciiStream(int columnIndex, InputStream inputStream) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateBinaryStream(int columnIndex, InputStream inputStream) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateCharacterStream(int columnIndex, Reader reader) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateAsciiStream(String columnLabel, InputStream inputStream) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateBinaryStream(String columnLabel, InputStream inputStream) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateCharacterStream(String columnLabel, Reader reader) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateBlob(int columnIndex, InputStream inputStream) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateBlob(String columnLabel, InputStream inputStream) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateClob(int columnIndex, Reader reader) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateClob(String columnLabel, Reader reader) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateNClob(int columnIndex, Reader reader) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public void updateNClob(String columnLabel, Reader reader) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public <T> T getObject(int columnIndex, Class<T> type) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public <T> T getObject(String columnLabel, Class<T> type)
+ throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+}
http://git-wip-us.apache.org/repos/asf/incubator-zeppelin/blob/3a4ab1ad/tajo/src/test/java/org/apache/zeppelin/tajo/TesterResultSetMetaData.java
----------------------------------------------------------------------
diff --git a/tajo/src/test/java/org/apache/zeppelin/tajo/TesterResultSetMetaData.java b/tajo/src/test/java/org/apache/zeppelin/tajo/TesterResultSetMetaData.java
new file mode 100644
index 0000000..d11e22f
--- /dev/null
+++ b/tajo/src/test/java/org/apache/zeppelin/tajo/TesterResultSetMetaData.java
@@ -0,0 +1,157 @@
+/**
+ * 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.zeppelin.tajo;
+
+import java.sql.ResultSetMetaData;
+import java.sql.SQLException;
+import java.sql.SQLFeatureNotSupportedException;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * A dummy {@link java.sql.ResultSetMetaData}, for testing purposes.
+ */
+public class TesterResultSetMetaData implements ResultSetMetaData {
+
+ // Dummy columns
+ private List<String> columns = null;
+
+ public TesterResultSetMetaData() {
+ columns = new ArrayList<String>();
+ columns.add("id");
+ columns.add("name");
+ columns.add("score");
+ columns.add("type");
+ }
+
+ @Override
+ public int getColumnCount() throws SQLException {
+ return columns.size();
+ }
+
+ @Override
+ public boolean isAutoIncrement(int column) throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean isCaseSensitive(int column) throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean isSearchable(int column) throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean isCurrency(int column) throws SQLException {
+ return false;
+ }
+
+ @Override
+ public int isNullable(int column) throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public boolean isSigned(int column) throws SQLException {
+ return false;
+ }
+
+ @Override
+ public int getColumnDisplaySize(int column) throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public String getColumnLabel(int column) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public String getColumnName(int column) throws SQLException {
+ return columns.get(column - 1);
+ }
+
+ @Override
+ public String getSchemaName(int column) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public int getPrecision(int column) throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public int getScale(int column) throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public String getTableName(int column) throws SQLException {
+ return null;
+ }
+
+ @Override
+ public String getCatalogName(int column) throws SQLException {
+ return null;
+ }
+
+ @Override
+ public int getColumnType(int column) throws SQLException {
+ return 0;
+ }
+
+ @Override
+ public String getColumnTypeName(int column) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public boolean isReadOnly(int column) throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean isWritable(int column) throws SQLException {
+ return false;
+ }
+
+ @Override
+ public boolean isDefinitelyWritable(int column) throws SQLException {
+ return false;
+ }
+
+ @Override
+ public String getColumnClassName(int column) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public <T> T unwrap(Class<T> iface) throws SQLException {
+ throw new SQLFeatureNotSupportedException("Not supported.");
+ }
+
+ @Override
+ public boolean isWrapperFor(Class<?> iface) throws SQLException {
+ return false;
+ }
+}