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1   /*
2    * Copyright 2016 The Netty Project
3    *
4    * The Netty Project licenses this file to you under the Apache License,
5    * version 2.0 (the "License"); you may not use this file except in compliance
6    * with the License. You may obtain a copy of the License at:
7    *
8    *   http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13   * License for the specific language governing permissions and limitations
14   * under the License.
15   */
16  package io.netty.bootstrap;
17  
18  import io.netty.channel.Channel;
19  import io.netty.resolver.AddressResolverGroup;
20  
21  import java.net.SocketAddress;
22  
23  /**
24   * Exposes the configuration of a {@link Bootstrap}.
25   */
26  public final class BootstrapConfig extends AbstractBootstrapConfig<Bootstrap, Channel> {
27  
28      BootstrapConfig(Bootstrap bootstrap) {
29          super(bootstrap);
30      }
31  
32      /**
33       * Returns the configured remote address or {@code null} if non is configured yet.
34       */
35      public SocketAddress remoteAddress() {
36          return bootstrap.remoteAddress();
37      }
38  
39      /**
40       * Returns the configured {@link AddressResolverGroup} or the default if non is configured yet.
41       */
42      public AddressResolverGroup<?> resolver() {
43          return bootstrap.resolver();
44      }
45  
46      @Override
47      public String toString() {
48          StringBuilder buf = new StringBuilder(super.toString());
49          buf.setLength(buf.length() - 1);
50          buf.append(", resolver: ").append(resolver());
51          SocketAddress remoteAddress = remoteAddress();
52          if (remoteAddress != null) {
53              buf.append(", remoteAddress: ")
54                      .append(remoteAddress);
55          }
56          return buf.append(')').toString();
57      }
58  }