View Javadoc

1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to you under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  package org.apache.shale.test.mock;
19  
20  import java.io.ByteArrayOutputStream;
21  import javax.servlet.ServletOutputStream;
22  
23  /***
24   * <p>Mock implementation of <code>ServletOutputStream</code>.</p>
25   *
26   * $Id: MockServletOutputStream.java 464373 2006-10-16 04:21:54Z rahul $
27   */
28  
29  public class MockServletOutputStream extends ServletOutputStream {
30  
31  
32      // ------------------------------------------------------------ Constructors
33  
34  
35      /***
36       * <p>Return a default instance.</p>
37       *
38       * @param stream The stream we will use to buffer output
39       */
40      public MockServletOutputStream(ByteArrayOutputStream stream) {
41          this.baos = stream;
42      }
43  
44  
45      // ----------------------------------------------------- Mock Object Methods
46  
47  
48      /***
49       * <p>Return the content that has been written to this output stream.</p>
50       */
51      public byte[] content() {
52          return baos.toByteArray();
53      }
54  
55  
56      /***
57       * <p>Reset this output stream so that it appears no content has been
58       * written.</p>
59       */
60      public void reset() {
61          baos.reset();
62      }
63  
64  
65      /***
66       * <p>Return the number of bytes that have been written to this output stream.</p>
67       */
68      public int size() {
69          return baos.size();
70      }
71  
72  
73  
74      // ------------------------------------------------------ Instance Variables
75  
76  
77      /***
78       * <p>The internal buffer we use to capture output.</p>
79       */
80      private ByteArrayOutputStream baos = null;
81  
82  
83      // --------------------------------------------- ServletOutputStream Methods
84  
85  
86      /***
87       * <p>Write the specified content to our internal cache.</p>
88       *
89       * @param content Content to be written
90       */
91      public void write(int content) {
92          baos.write(content);
93      }
94  
95  
96  }