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67 lines
2.7 KiB
Java
67 lines
2.7 KiB
Java
/*
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* ====================================================================
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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*
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*/
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package ch.boye.httpclientandroidlib.conn;
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import ch.boye.httpclientandroidlib.ConnectionReuseStrategy;
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import ch.boye.httpclientandroidlib.HttpResponse;
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import ch.boye.httpclientandroidlib.protocol.HttpContext;
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/**
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* Interface for deciding how long a connection can remain
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* idle before being reused.
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* <p>
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* Implementations of this interface must be thread-safe. Access to shared
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* data must be synchronized as methods of this interface may be executed
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* from multiple threads.
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*
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* @since 4.0
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*/
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public interface ConnectionKeepAliveStrategy {
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/**
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* Returns the duration of time which this connection can be safely kept
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* idle. If the connection is left idle for longer than this period of time,
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* it MUST not reused. A value of 0 or less may be returned to indicate that
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* there is no suitable suggestion.
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*
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* When coupled with a {@link ConnectionReuseStrategy}, if
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* {@link ConnectionReuseStrategy#keepAlive(HttpResponse, HttpContext)}
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* returns true, this allows you to control how long the reuse will last. If
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* keepAlive returns false, this should have no meaningful impact
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*
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* @param response
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* The last response received over the connection.
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* @param context
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* the context in which the connection is being used.
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*
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* @return the duration in ms for which it is safe to keep the connection
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* idle, or <=0 if no suggested duration.
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*/
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long getKeepAliveDuration(HttpResponse response, HttpContext context);
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}
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