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1
15 package org.apache.hivemind.impl;
16
17 import java.util.ArrayList  ;
18 import java.util.HashMap ;
19 import java.util.HashSet ;
20 import java.util.Iterator ;
21 import java.util.List ;
22 import java.util.Map ;
23 import java.util.Set ;
24
25 import org.apache.hivemind.ApplicationRuntimeException;
26 import org.apache.hivemind.Attribute;
27 import org.apache.hivemind.Element;
28 import org.apache.hivemind.schema.AttributeModel;
29 import org.apache.hivemind.schema.ElementModel;
30 import org.apache.hivemind.schema.Rule;
31 import org.apache.hivemind.schema.SchemaProcessor;
32 import org.apache.hivemind.schema.Translator;
33 import org.apache.hivemind.schema.rules.NullTranslator;
34
35
41 final class SchemaElement
42 {
43 private SchemaProcessor _processor;
44
45 private ElementModel _model;
46
47 private List _requiredAttributes = new ArrayList ();
48
49 private Set _knownAttributes = new HashSet ();
50
51 private Map _nestedElements;
52
53
56 private Map _attributeTranslators = new HashMap ();
57
58 private Map _attributeDefaults = new HashMap ();
59
60
65 private Map _attributeValues = new HashMap ();
66
67 SchemaElement(SchemaProcessor processor, ElementModel model)
68 {
69 _processor = processor;
70 _model = model;
71
72 List attributeModels = model.getAttributeModels();
73 int count = attributeModels.size();
74
75 for (int i = 0; i < count; i++)
76 {
77 AttributeModel am = (AttributeModel) attributeModels.get(i);
78
79 String name = am.getName();
80
81 _knownAttributes.add(name);
82
83 if (am.isRequired())
84 _requiredAttributes.add(name);
85
86
89 if (am.isUnique())
90 _attributeValues.put(name, new HashMap ());
91
92 if (am.getDefault() != null)
93 _attributeDefaults.put(am.getName(), am.getDefault());
94
95 _attributeTranslators.put(name, am.getTranslator());
96 }
97 }
98
99
102 SchemaElement getNestedElement(String elementName)
103 {
104 if (_nestedElements == null)
105 buildNestedElements();
106
107 return (SchemaElement) _nestedElements.get(elementName);
108 }
109
110 private void buildNestedElements()
111 {
112 _nestedElements = new HashMap ();
113
114 List l = _model.getElementModel();
115 int count = l.size();
116
117 for (int i = 0; i < count; i++)
118 {
119 ElementModel nested = (ElementModel) l.get(i);
120
121 SchemaElement nestedElement = new SchemaElement(_processor, nested);
122
123
125 _nestedElements.put(nested.getElementName(), nestedElement);
126 }
127
128 }
129
130
134 void validateAttributes(Element element)
135 {
136 List l = element.getAttributes();
137 int count = l.size();
138 Set required = new HashSet (_requiredAttributes);
139 List errors = new ArrayList ();
140
141 for (int i = 0; i < count; i++)
142 {
143 Attribute a = (Attribute) l.get(i);
144 String name = a.getName();
145
146 if (!_knownAttributes.contains(name))
147 errors.add(XmlImplMessages.unknownAttribute(name));
148
149 required.remove(name);
150 }
151
152 Iterator it = required.iterator();
153
154 while (it.hasNext())
155 {
156 String name = (String ) it.next();
157 errors.add(XmlImplMessages.missingAttribute(name));
158 }
159
160 count = errors.size();
161
162 if (count == 0)
163 return;
164
165 StringBuffer buffer = new StringBuffer ();
166
167 buffer.append(XmlImplMessages.elementErrors(_processor, element));
168
169 for (int i = 0; i < count; i++)
170 {
171 buffer.append(' ');
172 buffer.append(errors.get(i).toString());
173 }
174
175
178 throw new ApplicationRuntimeException(buffer.toString(), element.getLocation(), null);
179 }
180
181
182 void fireBegin(Element element)
183 {
184 List rules = _model.getRules();
185 int count = rules.size();
186
187 for (int i = 0; i < count; i++)
188 {
189 Rule r = (Rule) rules.get(i);
190
191 r.begin(_processor, element);
192
193 }
194 }
195
196 void fireEnd(Element element)
197 {
198 List rules = _model.getRules();
199 int count = rules.size();
200
201 for (int i = count - 1; i >= 0; i--)
202 {
203 Rule r = (Rule) rules.get(i);
204
205 r.end(_processor, element);
206
207 }
208 }
209
210 private Translator _nullTranslator = new NullTranslator();
211
212 private Translator _contentTranslator;
213
214 public Translator getContentTranslator()
215 {
216 if (_contentTranslator == null)
217 _contentTranslator = getTranslator(_model.getContentTranslator());
218
219 return _contentTranslator;
220 }
221
222 private Translator getTranslator(String translator)
223 {
224 if (translator == null)
225 return _nullTranslator;
226
227 return _processor.getTranslator(translator);
228 }
229
230 public Translator getAttributeTranslator(String attributeName)
231 {
232 String translator = (String ) _attributeTranslators.get(attributeName);
233
234 return getTranslator(translator);
235 }
236
237 public String getAttributeDefault(String attributeName)
238 {
239 return (String ) _attributeDefaults.get(attributeName);
240 }
241
242 public ElementModel getModel()
243 {
244 return _model;
245 }
246
247 } |
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