/android/upstream/org/apache/http/impl/client/DefaultConnectionKeepAliveStrategy.java
Java | 76 lines | 29 code | 4 blank | 43 comment | 6 complexity | 708afca80d0e7781322c00ebfa090680 MD5 | raw file
- /*
- * $HeadURL: $
- * $Revision: $
- * $Date: $
- *
- * ====================================================================
- * 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.client;
- import org.apache.http.HeaderElement;
- import org.apache.http.HeaderElementIterator;
- import org.apache.http.HttpResponse;
- import org.apache.http.conn.ConnectionKeepAliveStrategy;
- import org.apache.http.message.BasicHeaderElementIterator;
- import org.apache.http.protocol.HTTP;
- import org.apache.http.protocol.HttpContext;
- /**
- * Default implementation of a strategy deciding duration
- * that a connection can remain idle.
- *
- * The default implementation looks solely at the 'Keep-Alive'
- * header's timeout token.
- *
- * @author <a href="mailto:sberlin at gmail.com">Sam Berlin</a>
- *
- * @version $Revision: $
- *
- * @since 4.0
- */
- public class DefaultConnectionKeepAliveStrategy implements ConnectionKeepAliveStrategy {
-
- public long getKeepAliveDuration(HttpResponse response, HttpContext context) {
- if (response == null) {
- throw new IllegalArgumentException("HTTP response may not be null");
- }
- HeaderElementIterator it = new BasicHeaderElementIterator(
- response.headerIterator(HTTP.CONN_KEEP_ALIVE));
- while (it.hasNext()) {
- HeaderElement he = it.nextElement();
- String param = he.getName();
- String value = he.getValue();
- if (value != null && param.equalsIgnoreCase("timeout")) {
- try {
- return Long.parseLong(value) * 1000;
- } catch(NumberFormatException ignore) {
- }
- }
- }
- return -1;
- }
- }