1 package org.apache.maven.doxia.module.twiki.parser;
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 org.apache.maven.doxia.sink.Sink;
23
24 /**
25 * Block that represents a link.
26 *
27 * @author Juan F. Codagnone
28 */
29 class LinkBlock
30 implements Block
31 {
32 /**
33 * link reference
34 */
35 private final String reference;
36
37 /**
38 * link text
39 */
40 private final Block content;
41
42 /**
43 * Creates the LinkBlock.
44 *
45 * @param reference reference anchor
46 * @param text text to display
47 * @deprecated
48 */
49 LinkBlock( final String reference, final String text )
50 {
51 this( reference, new TextBlock( text ) );
52 }
53
54 /**
55 * Creates the LinkBlock.
56 *
57 * @param reference reference anchor, not null.
58 * @param content block with the displayed content, not null.
59 */
60 LinkBlock( final String reference, final Block content )
61 {
62 if ( reference == null || content == null )
63 {
64 throw new IllegalArgumentException( "arguments can't be null" );
65 }
66 this.reference = reference;
67 this.content = content;
68 }
69
70 /** {@inheritDoc} */
71 public final void traverse( final Sink sink )
72 {
73 sink.link( reference );
74 content.traverse( sink );
75 sink.link_();
76
77 }
78
79 /** {@inheritDoc} */
80 public final boolean equals( final Object obj )
81 {
82 boolean ret = false;
83
84 if ( obj == this )
85 {
86 ret = true;
87 }
88 else if ( obj instanceof LinkBlock )
89 {
90 final LinkBlock l = (LinkBlock) obj;
91 ret = reference.equals( l.reference ) && content.equals( l.content );
92 }
93
94 return ret;
95 }
96
97 /**
98 * {@inheritDoc}
99 *
100 * @return a int.
101 */
102 public final int hashCode()
103 {
104 final int magic1 = 17;
105 final int magic2 = 37;
106
107 return magic1 + magic2 * reference.hashCode() + magic2 * content.hashCode();
108 }
109 }