diff options
Diffstat (limited to 'src/org/apache/http/conn/BasicEofSensorWatcher.java')
-rw-r--r-- | src/org/apache/http/conn/BasicEofSensorWatcher.java | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/src/org/apache/http/conn/BasicEofSensorWatcher.java b/src/org/apache/http/conn/BasicEofSensorWatcher.java new file mode 100644 index 0000000..9a9f3c5 --- /dev/null +++ b/src/org/apache/http/conn/BasicEofSensorWatcher.java @@ -0,0 +1,121 @@ +/* + * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/main/java/org/apache/http/conn/BasicEofSensorWatcher.java $ + * $Revision $ + * $Date: 2008-06-27 12:49:20 -0700 (Fri, 27 Jun 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.conn; + +import java.io.InputStream; +import java.io.IOException; + + +/** + * Basic implementation of {@link EofSensorWatcher EofSensorWatcher}. + * The underlying connection is released on close or EOF. + * + * @author <a href="mailto:rolandw at apache.org">Roland Weber</a> + * + * + * <!-- empty lines to avoid svn diff problems --> + * @version $Revision: 672367 $ + * + * @since 4.0 + */ +public class BasicEofSensorWatcher implements EofSensorWatcher { + + + /** The connection to auto-release. */ + protected ManagedClientConnection managedConn; + + /** Whether to keep the connection alive. */ + protected boolean attemptReuse; + + + + /** + * Creates a new watcher for auto-releasing a connection. + * + * @param conn the connection to auto-release + * @param reuse whether the connection should be re-used + */ + public BasicEofSensorWatcher(ManagedClientConnection conn, + boolean reuse) { + if (conn == null) + throw new IllegalArgumentException + ("Connection may not be null."); + + managedConn = conn; + attemptReuse = reuse; + } + + + // non-javadoc, see interface EofSensorWatcher + public boolean eofDetected(InputStream wrapped) + throws IOException { + + try { + if (attemptReuse) { + // there may be some cleanup required, such as + // reading trailers after the response body: + wrapped.close(); + managedConn.markReusable(); + } + } finally { + managedConn.releaseConnection(); + } + return false; + } + + + // non-javadoc, see interface EofSensorWatcher + public boolean streamClosed(InputStream wrapped) + throws IOException { + + try { + if (attemptReuse) { + // this assumes that closing the stream will + // consume the remainder of the response body: + wrapped.close(); + managedConn.markReusable(); + } + } finally { + managedConn.releaseConnection(); + } + return false; + } + + + // non-javadoc, see interface EofSensorWatcher + public boolean streamAbort(InputStream wrapped) + throws IOException { + + managedConn.abortConnection(); + return false; + } + +} // class BasicEofSensorWatcher |