KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > codehaus > groovy > sandbox > markup > Builder


1 package org.codehaus.groovy.sandbox.markup;
2 /*
3
4 Copyright 2004 (C) John Wilson. All Rights Reserved.
5
6 Redistribution and use of this software and associated documentation
7 ("Software"), with or without modification, are permitted provided
8 that the following conditions are met:
9
10 1. Redistributions of source code must retain copyright
11    statements and notices. Redistributions must also contain a
12    copy of this document.
13
14 2. Redistributions in binary form must reproduce the
15    above copyright notice, this list of conditions and the
16    following disclaimer in the documentation and/or other
17    materials provided with the distribution.
18
19 3. The name "groovy" must not be used to endorse or promote
20    products derived from this Software without prior written
21    permission of The Codehaus. For written permission,
22    please contact info@codehaus.org.
23
24 4. Products derived from this Software may not be called "groovy"
25    nor may "groovy" appear in their names without prior written
26    permission of The Codehaus. "groovy" is a registered
27    trademark of The Codehaus.
28
29 5. Due credit should be given to The Codehaus -
30    http://groovy.codehaus.org/
31
32 THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS
33 ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
34 NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
35 FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
36 THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
37 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
38 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
39 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
40 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
41 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
42 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
43 OF THE POSSIBILITY OF SUCH DAMAGE.
44
45 */

46
47 import groovy.lang.Closure;
48 import groovy.lang.GroovyObjectSupport;
49
50 import java.util.HashMap JavaDoc;
51 import java.util.Iterator JavaDoc;
52 import java.util.List JavaDoc;
53 import java.util.Map JavaDoc;
54
55 public abstract class Builder extends GroovyObjectSupport {
56     protected final Map JavaDoc namespaceMethodMap = new HashMap JavaDoc();
57     
58     public Builder(final Map JavaDoc namespaceMethodMap) {
59     final Iterator JavaDoc keyIterator = namespaceMethodMap.keySet().iterator();
60         
61         while (keyIterator.hasNext()) {
62         final Object JavaDoc key = keyIterator.next();
63         final List JavaDoc value = (List JavaDoc)namespaceMethodMap.get(key);
64         final Closure dg = ((Closure)value.get(1)).asWritable();
65         
66             this.namespaceMethodMap.put(key, new Object JavaDoc[]{value.get(0), dg, fettleMethodMap(dg, (Map JavaDoc)value.get(2))});
67         }
68     }
69     
70     private static Map JavaDoc fettleMethodMap(final Closure defaultGenerator, final Map JavaDoc methodMap) {
71     final Map JavaDoc newMethodMap = new HashMap JavaDoc();
72     final Iterator JavaDoc keyIterator = methodMap.keySet().iterator();
73         
74         while (keyIterator.hasNext()) {
75         final Object JavaDoc key = keyIterator.next();
76         final Object JavaDoc value = methodMap.get(key);
77         
78             if ((value instanceof Closure)) {
79                 newMethodMap.put(key, value);
80             } else {
81                 newMethodMap.put(key, defaultGenerator.curry((Object JavaDoc[])value));
82             }
83         }
84         
85         return newMethodMap;
86     }
87     
88     abstract public Object JavaDoc bind(Closure root);
89     
90     protected static abstract class Built extends GroovyObjectSupport {
91     protected final Closure root;
92     protected final Map JavaDoc namespaceSpecificTags = new HashMap JavaDoc();
93         
94         public Built(final Closure root, final Map JavaDoc namespaceTagMap) {
95             this.namespaceSpecificTags.putAll(namespaceTagMap);
96         
97             this.root = (Closure)root.clone();
98             
99             this.root.setDelegate(this);
100         }
101     }
102 }
103
Popular Tags