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Diffstat (limited to 'src/org/apache/http/impl/conn/AbstractPooledConnAdapter.java')
| -rw-r--r-- | src/org/apache/http/impl/conn/AbstractPooledConnAdapter.java | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/src/org/apache/http/impl/conn/AbstractPooledConnAdapter.java b/src/org/apache/http/impl/conn/AbstractPooledConnAdapter.java new file mode 100644 index 0000000..2c5fd30 --- /dev/null +++ b/src/org/apache/http/impl/conn/AbstractPooledConnAdapter.java @@ -0,0 +1,188 @@ +/* + * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/main/java/org/apache/http/impl/conn/AbstractPooledConnAdapter.java $ + * $Revision: 658775 $ + * $Date: 2008-05-21 10:30:45 -0700 (Wed, 21 May 2008) $ + * + * ==================================================================== + * + * 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. + * ==================================================================== + * + * This software consists of voluntary contributions made by many + * individuals on behalf of the Apache Software Foundation. For more + * information on the Apache Software Foundation, please see + * <http://www.apache.org/>. + * + */ + +package org.apache.http.impl.conn; + + +import java.io.IOException; + +import org.apache.http.HttpHost; +import org.apache.http.params.HttpParams; +import org.apache.http.protocol.HttpContext; +import org.apache.http.conn.routing.HttpRoute; +import org.apache.http.conn.ClientConnectionManager; +import org.apache.http.conn.OperatedClientConnection; + + + +/** + * Abstract adapter from pool {@link AbstractPoolEntry entries} to + * {@link org.apache.http.conn.ManagedClientConnection managed} + * client connections. + * The connection in the pool entry is used to initialize the base class. + * In addition, methods to establish a route are delegated to the + * pool entry. {@link #shutdown shutdown} and {@link #close close} + * will clear the tracked route in the pool entry and call the + * respective method of the wrapped connection. + * + * @author <a href="mailto:rolandw at apache.org">Roland Weber</a> + * + * + * <!-- empty lines to avoid svn diff problems --> + * @version $Revision: 658775 $ $Date: 2008-05-21 10:30:45 -0700 (Wed, 21 May 2008) $ + * + * @since 4.0 + */ +public abstract class AbstractPooledConnAdapter extends AbstractClientConnAdapter { + + /** The wrapped pool entry. */ + protected volatile AbstractPoolEntry poolEntry; + + + /** + * Creates a new connection adapter. + * + * @param manager the connection manager + * @param entry the pool entry for the connection being wrapped + */ + protected AbstractPooledConnAdapter(ClientConnectionManager manager, + AbstractPoolEntry entry) { + super(manager, entry.connection); + this.poolEntry = entry; + } + + + /** + * Asserts that this adapter is still attached. + * + * @throws IllegalStateException + * if it is {@link #detach detach}ed + */ + protected final void assertAttached() { + if (poolEntry == null) { + throw new IllegalStateException("Adapter is detached."); + } + } + + /** + * Detaches this adapter from the wrapped connection. + * This adapter becomes useless. + */ + @Override + protected void detach() { + super.detach(); + poolEntry = null; + } + + + // non-javadoc, see interface ManagedHttpConnection + public HttpRoute getRoute() { + + assertAttached(); + return (poolEntry.tracker == null) ? + null : poolEntry.tracker.toRoute(); + } + + // non-javadoc, see interface ManagedHttpConnection + public void open(HttpRoute route, + HttpContext context, HttpParams params) + throws IOException { + + assertAttached(); + poolEntry.open(route, context, params); + } + + + // non-javadoc, see interface ManagedHttpConnection + public void tunnelTarget(boolean secure, HttpParams params) + throws IOException { + + assertAttached(); + poolEntry.tunnelTarget(secure, params); + } + + + // non-javadoc, see interface ManagedHttpConnection + public void tunnelProxy(HttpHost next, boolean secure, HttpParams params) + throws IOException { + + assertAttached(); + poolEntry.tunnelProxy(next, secure, params); + } + + + // non-javadoc, see interface ManagedHttpConnection + public void layerProtocol(HttpContext context, HttpParams params) + throws IOException { + + assertAttached(); + poolEntry.layerProtocol(context, params); + } + + + + // non-javadoc, see interface HttpConnection + public void close() throws IOException { + if (poolEntry != null) + poolEntry.shutdownEntry(); + + OperatedClientConnection conn = getWrappedConnection(); + if (conn != null) { + conn.close(); + } + } + + // non-javadoc, see interface HttpConnection + public void shutdown() throws IOException { + if (poolEntry != null) + poolEntry.shutdownEntry(); + + OperatedClientConnection conn = getWrappedConnection(); + if (conn != null) { + conn.shutdown(); + } + } + + + // non-javadoc, see interface ManagedClientConnection + public Object getState() { + assertAttached(); + return poolEntry.getState(); + } + + + // non-javadoc, see interface ManagedClientConnection + public void setState(final Object state) { + assertAttached(); + poolEntry.setState(state); + } + + +} // class AbstractPooledConnAdapter |