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.nio.client.util;
28
29 import java.io.IOException;
30
31 import org.apache.http.impl.nio.client.CloseableHttpAsyncClient;
32
33 /**
34 * Static helpers for dealing with {@link org.apache.http.nio.client.HttpAsyncClient}.
35 */
36 public class HttpAsyncClientUtils {
37
38 private HttpAsyncClientUtils() {
39 }
40
41 /**
42 * Unconditionally close a httpAsyncClient. Shuts down the underlying
43 * connection manager and releases the resources.
44 * <p>
45 * Example Code:
46 *
47 * <pre>
48 * HttpAsyncClient httpAsyncClient = null;
49 * try {
50 * httpAsyncClient = ...;
51 * } catch (Exception e) {
52 * // error handling
53 * } finally {
54 * HttpAsyncClientUtils.closeQuietly(httpAsyncClient);
55 * }
56 * </pre>
57 *
58 * @param httpAsyncClient
59 * the HttpAsyncClient to close, may be null or already closed.
60 */
61 public static void closeQuietly(final CloseableHttpAsyncClient httpAsyncClient) {
62 if (httpAsyncClient != null) {
63 try {
64 httpAsyncClient.close();
65 } catch (final IOException ignore) {
66 }
67 }
68 }
69
70 }