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/*
* $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/main/java/org/apache/http/impl/conn/tsccm/PoolEntryRequest.java $
* $Revision: 652020 $
* $Date: 2008-04-27 14:23:31 -0700 (Sun, 27 Apr 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.tsccm;
import java.util.concurrent.TimeUnit;
import org.apache.http.conn.ConnectionPoolTimeoutException;
/**
* Encapsulates a request for a {@link BasicPoolEntry}.
*/
public interface PoolEntryRequest {
/**
* Obtains a pool entry with a connection within the given timeout.
* If {@link #abortRequest()} is called before this completes
* an {@link InterruptedException} is thrown.
*
* @param timeout the timeout, 0 or negative for no timeout
* @param tunit the unit for the <code>timeout</code>,
* may be <code>null</code> only if there is no timeout
*
* @return pool entry holding a connection for the route
*
* @throws ConnectionPoolTimeoutException
* if the timeout expired
* @throws InterruptedException
* if the calling thread was interrupted or the request was aborted
*/
BasicPoolEntry getPoolEntry(
long timeout,
TimeUnit tunit) throws InterruptedException, ConnectionPoolTimeoutException;
/**
* Aborts the active or next call to
* {@link #getPoolEntry(long, TimeUnit)}.
*/
void abortRequest();
}
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