001/*
002 * ====================================================================
003 * Licensed to the Apache Software Foundation (ASF) under one
004 * or more contributor license agreements.  See the NOTICE file
005 * distributed with this work for additional information
006 * regarding copyright ownership.  The ASF licenses this file
007 * to you under the Apache License, Version 2.0 (the
008 * "License"); you may not use this file except in compliance
009 * with the License.  You may obtain a copy of the License at
010 *
011 *   http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing,
014 * software distributed under the License is distributed on an
015 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
016 * KIND, either express or implied.  See the License for the
017 * specific language governing permissions and limitations
018 * under the License.
019 * ====================================================================
020 *
021 * This software consists of voluntary contributions made by many
022 * individuals on behalf of the Apache Software Foundation.  For more
023 * information on the Apache Software Foundation, please see
024 * <http://www.apache.org/>.
025 *
026 */
027package org.apache.http.impl.conn;
028
029import java.util.concurrent.TimeUnit;
030import java.util.concurrent.atomic.AtomicLong;
031
032import org.apache.commons.logging.Log;
033import org.apache.commons.logging.LogFactory;
034import org.apache.http.annotation.Contract;
035import org.apache.http.annotation.ThreadingBehavior;
036import org.apache.http.conn.ManagedHttpClientConnection;
037import org.apache.http.conn.routing.HttpRoute;
038import org.apache.http.pool.AbstractConnPool;
039import org.apache.http.pool.ConnFactory;
040import org.apache.http.pool.PoolEntryCallback;
041
042/**
043 * @since 4.3
044 */
045@Contract(threading = ThreadingBehavior.SAFE)
046class CPool extends AbstractConnPool<HttpRoute, ManagedHttpClientConnection, CPoolEntry> {
047
048    private static final AtomicLong COUNTER = new AtomicLong();
049
050    private final Log log = LogFactory.getLog(CPool.class);
051    private final long timeToLive;
052    private final TimeUnit tunit;
053
054    public CPool(
055            final ConnFactory<HttpRoute, ManagedHttpClientConnection> connFactory,
056            final int defaultMaxPerRoute, final int maxTotal,
057            final long timeToLive, final TimeUnit tunit) {
058        super(connFactory, defaultMaxPerRoute, maxTotal);
059        this.timeToLive = timeToLive;
060        this.tunit = tunit;
061    }
062
063    @Override
064    protected CPoolEntry createEntry(final HttpRoute route, final ManagedHttpClientConnection conn) {
065        final String id = Long.toString(COUNTER.getAndIncrement());
066        return new CPoolEntry(this.log, id, route, conn, this.timeToLive, this.tunit);
067    }
068
069    @Override
070    protected boolean validate(final CPoolEntry entry) {
071        return !entry.getConnection().isStale();
072    }
073
074    @Override
075    protected void enumAvailable(final PoolEntryCallback<HttpRoute, ManagedHttpClientConnection> callback) {
076        super.enumAvailable(callback);
077    }
078
079    @Override
080    protected void enumLeased(final PoolEntryCallback<HttpRoute, ManagedHttpClientConnection> callback) {
081        super.enumLeased(callback);
082    }
083
084}