1 package org.apache.maven.shared.dependency.analyzer;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.io.IOException;
23 import java.io.InputStream;
24
25 import org.codehaus.plexus.util.IOUtil;
26 import org.jmock.core.Constraint;
27
28 /**
29 *
30 *
31 * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
32 * @version $Id$
33 */
34 public class InputStreamConstraint
35 implements Constraint
36 {
37 // constants --------------------------------------------------------------
38
39 private static final String DEFAULT_CHARSET_NAME = "UTF-8";
40
41 // fields -----------------------------------------------------------------
42
43 private final String expected;
44
45 private final String charsetName;
46
47 // constructors -----------------------------------------------------------
48
49 public InputStreamConstraint( String expected )
50 {
51 this( expected, DEFAULT_CHARSET_NAME );
52 }
53
54 public InputStreamConstraint( String expected, String charsetName )
55 {
56 this.expected = expected;
57 this.charsetName = charsetName;
58 }
59
60 // Constraint methods -----------------------------------------------------
61
62 /*
63 * @see org.jmock.core.Constraint#eval(java.lang.Object)
64 */
65 public boolean eval( Object object )
66 {
67 if ( !( object instanceof InputStream ) )
68 {
69 return false;
70 }
71
72 InputStream in = (InputStream) object;
73
74 try
75 {
76 String actual = IOUtil.toString( in, charsetName );
77
78 return expected.equals( actual );
79 }
80 catch ( IOException exception )
81 {
82 return false;
83 }
84 }
85
86 // SelfDescribing methods -------------------------------------------------
87
88 /*
89 * @see org.jmock.core.SelfDescribing#describeTo(java.lang.StringBuffer)
90 */
91 public StringBuffer describeTo( StringBuffer buffer )
92 {
93 buffer.append( "in(" );
94 buffer.append( "\"" ).append( expected ).append( "\"" );
95 buffer.append( "," ).append( charsetName );
96 buffer.append( ")" );
97
98 return buffer;
99 }
100 }