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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.hc.client5.http.async.methods;
28  
29  import org.apache.hc.core5.concurrent.FutureCallback;
30  import org.slf4j.Logger;
31  import org.slf4j.LoggerFactory;
32  
33  /**
34   * @param <T> the future result type returned by this callback.
35   * @since 5.2
36   */
37  public class IgnoreCompleteExceptionFutureCallback<T> implements FutureCallback<T> {
38  
39      private final FutureCallback<T> callback;
40  
41      private static final Logger LOG = LoggerFactory.getLogger(IgnoreCompleteExceptionFutureCallback.class);
42  
43      public IgnoreCompleteExceptionFutureCallback(final FutureCallback<T> callback) {
44          super();
45          this.callback = callback;
46      }
47  
48      @Override
49      public void completed(final T result) {
50          if (callback != null) {
51              try {
52                  callback.completed(result);
53              } catch (final Exception ex) {
54                  LOG.error(ex.getMessage(), ex);
55              }
56          }
57      }
58  
59      @Override
60      public void failed(final Exception ex) {
61          if (callback != null) {
62              callback.failed(ex);
63          }
64      }
65  
66      @Override
67      public void cancelled() {
68          if (callback != null) {
69              callback.cancelled();
70          }
71      }
72  
73  }