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1   /*
2    * Copyright (c) 2002-2025 Gargoyle Software Inc.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * https://www.apache.org/licenses/LICENSE-2.0
8    *
9    * Unless required by applicable law or agreed to in writing, software
10   * distributed under the License is distributed on an "AS IS" BASIS,
11   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12   * See the License for the specific language governing permissions and
13   * limitations under the License.
14   */
15  package org.htmlunit.websocket;
16  
17  import java.io.IOException;
18  import java.net.URI;
19  
20  /**
21   * Helper to have no direct dependency to the WebSockt client
22   * implementation used by HtmlUnit.
23   *
24   * @author Ronald Brill
25   */
26  public interface WebSocketAdapter {
27  
28      /**
29       * Starts the client.
30       *
31       * @throws Exception in case of error
32       */
33      void start() throws Exception;
34  
35      /**
36       * Connects to the given {@link URI}.
37       *
38       * @param url the target url
39       * @throws Exception in case of error
40       */
41      void connect(URI url) throws Exception;
42  
43      /**
44       * Sends the provided content.
45       *
46       * @param content the content to be sent
47       * @throws IOException in case of error
48       */
49      void send(Object content) throws IOException;
50  
51      /**
52       * Close the incomming session.
53       *
54       * @throws Exception in case of error
55       */
56      void closeIncommingSession() throws Exception;
57  
58      /**
59       * Close the outgoing session.
60       *
61       * @throws Exception in case of error
62       */
63      void closeOutgoingSession() throws Exception;
64  
65      /**
66       * Close the client.
67       *
68       * @throws Exception in case of error
69       */
70      void closeClient() throws Exception;
71  }