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1
34
35
36 package com.micronova.jsp.tag;
37
38 import com.micronova.util.*;
39 import java.util.*;
40
41
42
43 public class MapTag extends YuzuTag
44 {
45 protected Object  _source;
46 protected NestedMap _map;
47 protected String _bodyProperty;
48 protected Object _body;
49
50
51
52 protected void init()
53 {
54 super.init();
55
56 _source = null;
57 _bodyProperty = null;
58 _body = null;
59
60 NestedMap map = _map;
61
62 if (map == null)
63 {
64 map = new NestedMap();
65 _map = map;
66 }
67 else
68 {
69 map.clear();
70 map.setAcceptable(null);
71 }
72
73 _value = map;
74 }
75
76
77
78 protected void cleanup()
79 {
80 if (_isAssigned)
81 {
82 _map = null;
83 }
84 }
85
86
87
88 public void setSource(Object expression) throws Exception
89 {
90 Object source = evaluateAttribute("source", expression, Object .class);
91
92 _source = source;
93
94 if (_isInBody)
95 {
96 copyFromSource(source);
97 }
98 }
99
100
101
102 protected void copyFromSource(Object source) throws Exception
103 {
104 _map.copyFromSource(source);
105 }
106
107
108
109 protected Object prepareValue(Object tagValue) throws Exception
110 {
111 Object source = _source;
112
113 if (source != null)
114 {
115 copyFromSource(source);
116 }
117
118 return super.prepareValue(tagValue);
119 }
120
121 protected boolean doesImport(Object tagValue)
122 {
123 return (!isEmptyString(_bodyProperty));
124 }
125
126 protected Object importBody(Object tagValue) throws Exception
127 {
128 if (_body == null)
129 {
130 Object importedValue = super.importBody(tagValue);
131
132 if (importedValue != tagValue)
133 {
134 _body = importedValue;
135 }
136 }
137
138 return tagValue;
139 }
140
141 protected Object processValue(Object tagValue) throws Exception
142 {
143 NestedMap map = _map;
144
145 String bodyProperty = _bodyProperty;
146
147 if (!isEmptyString(bodyProperty))
148 {
149 map.put(bodyProperty, _body);
150 }
151
152 return tagValue;
153 }
154
155 public void setBodyProperty(Object expression) throws Exception
156 {
157 _bodyProperty = (String )evaluateAttribute("bodyProperty", expression, String .class);
158 }
159 }
160 |
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