diff options
Diffstat (limited to 'tags/java-M1-final/java/das/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/CommandGroupImpl.java')
| -rw-r--r-- | tags/java-M1-final/java/das/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/CommandGroupImpl.java | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/tags/java-M1-final/java/das/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/CommandGroupImpl.java b/tags/java-M1-final/java/das/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/CommandGroupImpl.java deleted file mode 100644 index aeaf3a7c57..0000000000 --- a/tags/java-M1-final/java/das/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/CommandGroupImpl.java +++ /dev/null @@ -1,207 +0,0 @@ -/** - * - * Copyright 2005 The Apache Software Foundation or its licensors, as applicable. - * - * Licensed 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.tuscany.das.rdb.impl; - -import java.io.InputStream; -import java.sql.Connection; -import java.sql.DriverManager; -import java.sql.SQLException; -import java.util.HashMap; -import java.util.Iterator; -import java.util.Map; - -import javax.naming.InitialContext; -import javax.naming.NamingException; -import javax.sql.DataSource; - -import org.apache.tuscany.das.rdb.ApplyChangesCommand; -import org.apache.tuscany.das.rdb.Command; -import org.apache.tuscany.das.rdb.CommandGroup; -import org.apache.tuscany.das.rdb.config.Config; -import org.apache.tuscany.das.rdb.config.ConnectionProperties; -import org.apache.tuscany.das.rdb.util.ConfigUtil; - -/** - * An ConfiguredCommandFactory produces instances of Command and - * ApplyChangesCommand. This factory is initialized with a configuration that - * defines the commands it produces. - * - */ -public class CommandGroupImpl implements CommandGroup { - - private Config config; - - private Connection connection; - - private Map commands = new HashMap(); - - public CommandGroupImpl(InputStream stream) { - super(); - config = ConfigUtil.loadConfig(stream); - initialize(); - } - - private void initialize() { - - Iterator i = config.getCommand().iterator(); - while (i.hasNext()) { - org.apache.tuscany.das.rdb.config.Command commandConfig = (org.apache.tuscany.das.rdb.config.Command) i - .next(); - String kind = commandConfig.getKind(); - if (kind.equalsIgnoreCase("select")) - //TODO - Need to refactor Command heirarchy based on Datasource - if (config.getConnectionProperties() != null) - commands.put(commandConfig.getName(), new ReadCommandImpl(commandConfig.getSQL(), config, getConnection())); - else - commands.put(commandConfig.getName(), new ReadCommandImpl(commandConfig.getSQL(), config)); - else if (kind.equalsIgnoreCase("update")) - commands.put(commandConfig.getName(), new UpdateCommandImpl(commandConfig.getSQL())); - else if (kind.equalsIgnoreCase("insert")) - commands.put(commandConfig.getName(), new InsertCommandImpl(commandConfig.getSQL())); - else if (kind.equalsIgnoreCase("delete")) - commands.put(commandConfig.getName(), new DeleteCommandImpl(commandConfig.getSQL())); - else - throw new Error("Invalid kind of command: " + kind); - - } - - } - - /* - * (non-Javadoc) - * - * @see org.apache.tuscany.das.rdb.CommandGroup#getApplyChangesCommand() - */ - public ApplyChangesCommand getApplyChangesCommand() { - ApplyChangesCommand cmd = new ApplyChangesCommandImpl(config, connection); - return cmd; - } - - /* - * (non-Javadoc) - * - * @see org.apache.tuscany.das.rdb.CommandGroup#getCommand(java.lang.String) - */ - public Command getCommand(String name) { - if (!commands.containsKey(name)) - throw new RuntimeException("CommandGroup has no command named: " + name); - Command cmd = (Command) commands.get(name); - cmd.setConnection(getConnection()); - return cmd; - } - - - public void setConnection(Connection connection) { - this.connection = connection; - } - - public Connection getConnection() { - if (connection == null) - initializeConnection(); - return connection; - } - - private void initializeConnection() { - - ConnectionProperties cp = config.getConnectionProperties(); - if (cp == null) - throw new Error( - "No connection properties have been configured and no connection has been provided"); - - if (cp.getDataSource() != null) - initViaDataSource(cp); - else - initViaDriverManager(cp); - - } - - private void initViaDriverManager(ConnectionProperties cp) { - Connection connection = null; - - try { - Class.forName(cp.getDriverClassName()); - if (cp.getDriverUserName() == null) - connection = DriverManager.getConnection(cp.getDriverURL()); - else - connection = DriverManager.getConnection(cp.getDriverURL(), cp.getDriverUserName(), cp - .getDriverPassword()); - connection.setAutoCommit(false); - setConnection(connection); - } catch (Exception ex) { - throw new RuntimeException(ex); - } - - } - - // TODO - Refactor to eliminate common initialization code after connection - // is got - private void initViaDataSource(ConnectionProperties cp) { - - Connection connection = null; - - InitialContext ctx; - try { - ctx = new InitialContext(); - } catch (NamingException e) { - throw new Error(e); - } - try { - // TODO - I think we should rename this getDataSourceURL? - DataSource ds = (DataSource) ctx.lookup(cp.getDataSource()); - try { - connection = ds.getConnection(); - connection.setAutoCommit(false); - setConnection(connection); - } catch (SQLException e) { - throw new Error(e); - } - } catch (NamingException e) { - throw new Error(e); - } - - } - - public void releaseResources() { - - if (managingConnections()) - closeConnection(); - } - - private void closeConnection() { - if (connection != null) - try { - connection.close(); - connection = null; - } catch (SQLException e) { - throw new RuntimeException(e); - } - } - - /** - * If the config has connection properties then we are "manageing" the - * connection via DriverManager or DataSource - */ - private boolean managingConnections() { - - if (config.getConnectionProperties() == null) - return false; - else - return true; - - } - -}
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