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1   /*
2    * junixsocket
3    *
4    * Copyright 2009-2026 Christian Kohlschütter
5    *
6    * Licensed under the Apache License, Version 2.0 (the "License");
7    * you may not use this file except in compliance with the License.
8    * You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  package org.newsclub.net.unix.rmi;
19  
20  import java.io.IOException;
21  import java.io.Serializable;
22  import java.net.Socket;
23  import java.rmi.server.RMIClientSocketFactory;
24  
25  import com.kohlschutter.annotations.compiletime.SuppressFBWarnings;
26  
27  /**
28   * An implementation of {@link RMIClientSocketFactory}.
29   *
30   * @see AFRMISocketFactory
31   */
32  @SuppressFBWarnings("SING_SINGLETON_IMPLEMENTS_SERIALIZABLE")
33  public final class DefaultRMIClientSocketFactory implements RMIClientSocketFactory, Serializable {
34    private static final long serialVersionUID = 1L;
35  
36    private static final DefaultRMIClientSocketFactory INSTANCE = new DefaultRMIClientSocketFactory();
37  
38    private DefaultRMIClientSocketFactory() {
39    }
40  
41    /**
42     * Returns the singleton instance for DefaultRMIClientSocketFactory.
43     *
44     * @return The singleton.
45     */
46    public static DefaultRMIClientSocketFactory getInstance() {
47      return INSTANCE;
48    }
49  
50    @Override
51    @SuppressFBWarnings("UNENCRYPTED_SOCKET")
52    public Socket createSocket(String host, int port) throws IOException {
53      Socket socket = new Socket(host, port); // NOPMD.VariableCanBeInlined
54      // socket.setSoTimeout(60 * 60 * 1000);
55      // socket.setSoLinger(false, 0);
56      return socket;
57    }
58  
59    // we must implement this (see RMIClientSocketFactory)
60    @Override
61    public boolean equals(Object obj) {
62      return obj instanceof DefaultRMIClientSocketFactory;
63    }
64  
65    // we must implement this (see RMIClientSocketFactory)
66    @Override
67    public int hashCode() {
68      return 1;
69    }
70  }