| /* |
| * 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.commons.dbcp2.datasources; |
| |
| import java.sql.Connection; |
| import java.sql.SQLException; |
| import java.util.Collection; |
| import java.util.EventListener; |
| import java.util.Vector; |
| |
| import javax.sql.ConnectionEvent; |
| import javax.sql.ConnectionEventListener; |
| import javax.sql.PooledConnection; |
| import javax.sql.StatementEventListener; |
| |
| /** |
| * PooledConnection implementation that wraps a driver-supplied |
| * PooledConnection and proxies events, allowing behavior to be |
| * modified to simulate behavior of different implementations. |
| */ |
| public class PooledConnectionProxy implements PooledConnection, |
| ConnectionEventListener { |
| |
| protected PooledConnection delegate = null; |
| |
| /** |
| * ConnectionEventListeners |
| */ |
| private final Vector<EventListener> eventListeners = new Vector<>(); |
| |
| /** |
| * True means we will (dubiously) notify listeners with a |
| * ConnectionClosed event when this (i.e. the PooledConnection itself) |
| * is closed |
| */ |
| private boolean notifyOnClose = false; |
| |
| public PooledConnectionProxy(final PooledConnection pooledConnection) { |
| this.delegate = pooledConnection; |
| pooledConnection.addConnectionEventListener(this); |
| } |
| |
| /** |
| * If notifyOnClose is on, notify listeners |
| */ |
| @Override |
| public void close() throws SQLException { |
| delegate.close(); |
| if (isNotifyOnClose()) { |
| notifyListeners(); |
| } |
| } |
| |
| @Override |
| public Connection getConnection() throws SQLException { |
| return delegate.getConnection(); |
| } |
| |
| /** |
| * Remove event listeners. |
| */ |
| @Override |
| public void removeConnectionEventListener(final ConnectionEventListener listener) { |
| eventListeners.remove(listener); |
| } |
| |
| /* JDBC_4_ANT_KEY_BEGIN */ |
| @Override |
| public void removeStatementEventListener(final StatementEventListener listener) { |
| eventListeners.remove(listener); |
| } |
| /* JDBC_4_ANT_KEY_END */ |
| |
| public boolean isNotifyOnClose() { |
| return notifyOnClose; |
| } |
| |
| public void setNotifyOnClose(final boolean notifyOnClose) { |
| this.notifyOnClose = notifyOnClose; |
| } |
| |
| /** |
| * sends a connectionClosed event to listeners. |
| */ |
| void notifyListeners() { |
| final ConnectionEvent event = new ConnectionEvent(this); |
| final Object[] listeners = eventListeners.toArray(); |
| for (final Object listener : listeners) { |
| ((ConnectionEventListener) listener).connectionClosed(event); |
| } |
| } |
| |
| /** |
| * Add event listeners. |
| */ |
| @Override |
| public void addConnectionEventListener(final ConnectionEventListener listener) { |
| if (!eventListeners.contains(listener)) { |
| eventListeners.add(listener); |
| } |
| } |
| |
| /* JDBC_4_ANT_KEY_BEGIN */ |
| @Override |
| public void addStatementEventListener(final StatementEventListener listener) { |
| if (!eventListeners.contains(listener)) { |
| eventListeners.add(listener); |
| } |
| } |
| /* JDBC_4_ANT_KEY_END */ |
| |
| /** |
| * Pass closed events on to listeners |
| */ |
| @Override |
| public void connectionClosed(final ConnectionEvent event) { |
| notifyListeners(); |
| } |
| |
| /** |
| * Pass error events on to listeners |
| */ |
| @Override |
| public void connectionErrorOccurred(final ConnectionEvent event) { |
| final Object[] listeners = eventListeners.toArray(); |
| for (final Object listener : listeners) { |
| ((ConnectionEventListener) listener).connectionErrorOccurred(event); |
| } |
| } |
| |
| /** |
| * Generate a connection error event |
| */ |
| public void throwConnectionError() { |
| final ConnectionEvent event = new ConnectionEvent(this); |
| connectionErrorOccurred(event); |
| } |
| |
| /** |
| * Expose listeners |
| */ |
| public Collection<EventListener> getListeners() { |
| return eventListeners; |
| } |
| |
| } |