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.ThreadingBehavior;
34 import org.apache.http.annotation.Contract;
35 import org.apache.http.config.ConnectionConfig;
36 import org.apache.http.config.SocketConfig;
37 import org.apache.http.params.HttpParams;
38 import org.apache.http.pool.AbstractConnPool;
39 import org.apache.http.pool.ConnFactory;
40
41 /**
42 * A very basic {@link org.apache.http.pool.ConnPool} implementation that
43 * represents a pool of blocking {@link HttpClientConnection} connections
44 * identified by an {@link HttpHost} instance. Please note this pool
45 * implementation does not support complex routes via a proxy cannot
46 * differentiate between direct and proxied connections.
47 *
48 * @see HttpHost
49 * @since 4.2
50 */
51 @SuppressWarnings("deprecation")
52 @Contract(threading = ThreadingBehavior.SAFE_CONDITIONAL)
53 public class BasicConnPool extends AbstractConnPool<HttpHost, HttpClientConnection, BasicPoolEntry> {
54
55 private static final AtomicLong COUNTER = new AtomicLong();
56
57 public BasicConnPool(final ConnFactory<HttpHost, HttpClientConnection> connFactory) {
58 super(connFactory, 2, 20);
59 }
60
61 /**
62 * @deprecated (4.3) use {@link BasicConnPool#BasicConnPool(SocketConfig, ConnectionConfig)}
63 */
64 @Deprecated
65 public BasicConnPool(final HttpParams params) {
66 super(new BasicConnFactory(params), 2, 20);
67 }
68
69 /**
70 * @since 4.3
71 */
72 public BasicConnPool(final SocketConfig sconfig, final ConnectionConfig cconfig) {
73 super(new BasicConnFactory(sconfig, cconfig), 2, 20);
74 }
75
76 /**
77 * @since 4.3
78 */
79 public BasicConnPool() {
80 super(new BasicConnFactory(SocketConfig.DEFAULT, ConnectionConfig.DEFAULT), 2, 20);
81 }
82
83 @Override
84 protected BasicPoolEntry createEntry(
85 final HttpHost host,
86 final HttpClientConnection conn) {
87 return new BasicPoolEntry(Long.toString(COUNTER.getAndIncrement()), host, conn);
88 }
89
90 @Override
91 protected boolean validate(final BasicPoolEntry entry) {
92 return !entry.getConnection().isStale();
93 }
94
95 }