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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.http.conn;
28  
29  import java.io.IOException;
30  import java.net.ConnectException;
31  import java.net.InetAddress;
32  import java.util.Arrays;
33  
34  import org.apache.http.HttpHost;
35  import org.apache.http.annotation.Immutable;
36  
37  /**
38   * A {@link ConnectException} that specifies the {@link HttpHost} that was
39   * being connected to.
40   *
41   * @since 4.0
42   */
43  @Immutable
44  public class HttpHostConnectException extends ConnectException {
45  
46      private static final long serialVersionUID = -3194482710275220224L;
47  
48      private final HttpHost host;
49  
50      /**
51       * @deprecated (4.3) use {@link #HttpHostConnectException(java.io.IOException, org.apache.http.HttpHost,
52       *   java.net.InetAddress...)}
53       */
54      @Deprecated
55      public HttpHostConnectException(final HttpHost host, final ConnectException cause) {
56          this(cause, host, (InetAddress[]) null);
57      }
58  
59      /**
60       * Creates a HttpHostConnectException based on original {@link java.io.IOException}.
61       *
62       * @since 4.3
63       */
64      public HttpHostConnectException(
65              final IOException cause,
66              final HttpHost host,
67              final InetAddress... remoteAddresses) {
68          super("Connect to " +
69                  (host != null ? host.toHostString() : "remote host") +
70                  (remoteAddresses != null && remoteAddresses .length > 0 ?
71                          " " + Arrays.asList(remoteAddresses) : "") +
72                  ((cause != null && cause.getMessage() != null) ?
73                          " failed: " + cause.getMessage() : " refused"));
74          this.host = host;
75          initCause(cause);
76      }
77  
78      public HttpHost getHost() {
79          return this.host;
80      }
81  
82  }