1 /*
2 * ====================================================================
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 * ====================================================================
20 *
21 * This software consists of voluntary contributions made by many
22 * individuals on behalf of the Apache Software Foundation. For more
23 * information on the Apache Software Foundation, please see
24 * <http://www.apache.org/>.
25 *
26 */
27 package org.apache.http.impl.pool;
28
29 import java.util.concurrent.atomic.AtomicLong;
30
31 import org.apache.http.HttpClientConnection;
32 import org.apache.http.HttpHost;
33 import org.apache.http.annotation.ThreadSafe;
34 import org.apache.http.params.HttpParams;
35 import org.apache.http.pool.AbstractConnPool;
36 import org.apache.http.pool.ConnFactory;
37 import org.apache.http.pool.ConnPool;
38
39 /**
40 * A very basic {@link ConnPool} implementation that represents a pool
41 * of blocking {@link HttpClientConnection} connections identified by
42 * an {@link HttpHost} instance. Please note this pool implementation
43 * does not support complex routes via a proxy cannot differentiate between
44 * direct and proxied connections.
45 * <p/>
46 * The following parameters can be used to customize the behavior of this
47 * class:
48 * <ul>
49 * <li>{@link org.apache.http.params.CoreProtocolPNames#HTTP_ELEMENT_CHARSET}</li>
50 * <li>{@link org.apache.http.params.CoreConnectionPNames#TCP_NODELAY}</li>
51 * <li>{@link org.apache.http.params.CoreConnectionPNames#SO_TIMEOUT}</li>
52 * <li>{@link org.apache.http.params.CoreConnectionPNames#SO_LINGER}</li>
53 * <li>{@link org.apache.http.params.CoreConnectionPNames#SOCKET_BUFFER_SIZE}</li>
54 * <li>{@link org.apache.http.params.CoreConnectionPNames#MAX_LINE_LENGTH}</li>
55 * </ul>
56 *
57 * @see HttpHost
58 * @since 4.2
59 */
60 @ThreadSafe
61 public class BasicConnPool extends AbstractConnPool<HttpHost, HttpClientConnection, BasicPoolEntry> {
62
63 private static AtomicLong COUNTER = new AtomicLong();
64
65 public BasicConnPool(final ConnFactory<HttpHost, HttpClientConnection> connFactory) {
66 super(connFactory, 2, 20);
67 }
68
69 public BasicConnPool(final HttpParams params) {
70 super(new BasicConnFactory(params), 2, 20);
71 }
72
73 @Override
74 protected BasicPoolEntry createEntry(
75 final HttpHost host,
76 final HttpClientConnection conn) {
77 return new BasicPoolEntry(Long.toString(COUNTER.getAndIncrement()), host, conn);
78 }
79
80 }