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author | The Android Open Source Project <initial-contribution@android.com> | 2008-10-21 07:00:00 -0700 |
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committer | The Android Open Source Project <initial-contribution@android.com> | 2008-10-21 07:00:00 -0700 |
commit | 417f3b92ba4549b2f22340e3107d869d2b9c5bb8 (patch) | |
tree | 2e08a2a91d6d14995df54490e3667f7943fbc6d6 /src/org/apache/http/impl/client/DefaultConnectionKeepAliveStrategy.java | |
download | external_apache-http-417f3b92ba4549b2f22340e3107d869d2b9c5bb8.zip external_apache-http-417f3b92ba4549b2f22340e3107d869d2b9c5bb8.tar.gz external_apache-http-417f3b92ba4549b2f22340e3107d869d2b9c5bb8.tar.bz2 |
Initial Contribution
Diffstat (limited to 'src/org/apache/http/impl/client/DefaultConnectionKeepAliveStrategy.java')
-rw-r--r-- | src/org/apache/http/impl/client/DefaultConnectionKeepAliveStrategy.java | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/org/apache/http/impl/client/DefaultConnectionKeepAliveStrategy.java b/src/org/apache/http/impl/client/DefaultConnectionKeepAliveStrategy.java new file mode 100644 index 0000000..c7641d2 --- /dev/null +++ b/src/org/apache/http/impl/client/DefaultConnectionKeepAliveStrategy.java @@ -0,0 +1,76 @@ +/* + * $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; + } + +} |