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1
22 package org.jboss.xb.binding.sunday.unmarshalling;
23
24 import java.util.ArrayList  ;
25 import java.util.Collection ;
26 import java.util.Collections ;
27 import java.util.HashSet ;
28 import java.util.List ;
29 import java.util.Set ;
30
31 import javax.xml.namespace.QName ;
32
33 import org.jboss.logging.Logger;
34 import org.jboss.xb.binding.JBossXBRuntimeException;
35 import org.xml.sax.Attributes ;
36
37
41 public abstract class ModelGroupBinding
42 extends TermBinding
43 implements Cloneable
44 {
45 protected final Logger log = Logger.getLogger(getClass());
46
47 protected boolean requiredParticle;
48 protected ParticleHandler handler = DefaultHandlers.ELEMENT_HANDLER;
49
50 protected ModelGroupBinding(SchemaBinding schema)
51 {
52 super(schema);
53 }
54
55 public ParticleHandler getHandler()
56 {
57 return handler;
58 }
59
60 public void setHandler(ParticleHandler handler)
61 {
62 this.handler = handler;
63 }
64
65 public abstract ElementBinding getArrayItem();
66
67
72 public void addParticle(ParticleBinding particle)
73 {
74 if(particle.isRequired())
75 {
76 requiredParticle = true;
77 }
78 }
79
80 public abstract Collection getParticles();
81
82 public boolean hasRequiredParticle()
83 {
84 return requiredParticle;
85 }
86
87
93 public boolean mayStartWith(QName qName)
94 {
95 return mayStartWith(qName, Collections.EMPTY_SET);
96 }
97
98 public abstract Cursor newCursor(ParticleBinding particle);
99
100 public Object clone() throws CloneNotSupportedException
101 {
102 return super.clone();
103 }
104
105
107 protected abstract boolean mayStartWith(QName qName, Set set);
108
109 public boolean isSkip()
110 {
111 return skip == null ? true : skip.booleanValue();
112 }
113
114 public boolean isModelGroup()
115 {
116 return true;
117 }
118
119 public boolean isWildcard()
120 {
121 return false;
122 }
123
124 public boolean isElement()
125 {
126 return false;
127 }
128
129
131 public abstract class Cursor
132 {
133 protected final ParticleBinding particle;
134 protected final boolean trace = log.isTraceEnabled();
135
136 protected Cursor(ParticleBinding particle)
137 {
138 this.particle = particle;
139 }
140
141 public ParticleBinding getParticle()
142 {
143 return particle;
144 }
145
146 public ModelGroupBinding getModelGroup()
147 {
148 return (ModelGroupBinding)particle.getTerm();
149 }
150
151 public abstract ParticleBinding getCurrentParticle();
152
153 public abstract ElementBinding getElement();
154
155 public abstract boolean isPositioned();
156
157 public List startElement(QName qName, Attributes attrs)
158 {
159 return startElement(qName, attrs, Collections.EMPTY_SET, Collections.EMPTY_LIST, true);
160 }
161
162 public ElementBinding getElement(QName qName, Attributes attrs, boolean ignoreWildcards)
163 {
164 return getElement(qName, attrs, Collections.EMPTY_SET, ignoreWildcards);
165 }
166
167 public abstract void endElement(QName qName);
168
169 public abstract int getOccurence();
170
171
173 protected abstract List startElement(QName qName,
174 Attributes atts,
175 Set passedGroups,
176 List groupStack,
177 boolean required);
178
179 protected abstract ElementBinding getElement(QName qName, Attributes atts, Set passedGroups, boolean ignoreWildcards);
180
181 protected ElementBinding getElement(List group, QName qName, Attributes atts, Set passedGroups, boolean ignoreWildcards)
182 {
183 ElementBinding element = null;
184 for(int i = 0; i < group.size(); ++i)
185 {
186 ParticleBinding nextParticle = (ParticleBinding)group.get(i);
187 TermBinding item = nextParticle.getTerm();
188 if(item.isElement())
189 {
190 ElementBinding choice = (ElementBinding)item;
191 if(qName.equals(choice.getQName()))
192 {
193 element = choice;
194 break;
195 }
196 }
197 else if(item.isModelGroup())
198 {
199 ModelGroupBinding modelGroup = (ModelGroupBinding)item;
200 if(!passedGroups.contains(modelGroup))
201 {
202 switch(passedGroups.size())
203 {
204 case 0:
205 passedGroups = Collections.singleton(this);
206 break;
207 case 1:
208 passedGroups = new HashSet (passedGroups);
209 default:
210 passedGroups.add(this);
211 }
212
213 ElementBinding e = modelGroup.newCursor(nextParticle).getElement(qName, atts, passedGroups, ignoreWildcards);
214 if(e != null)
215 {
216 element = e;
217 if(!qName.equals(e.getQName()))
218 {
219 throw new JBossXBRuntimeException(
220 "There is a bug in ModelGroupBinding.Cursor.getElement(QName,Attributes) impl"
221 );
222 }
223 break;
224 }
225 }
226 }
227 else if(!ignoreWildcards)
228 {
229 WildcardBinding wildcard = (WildcardBinding)item;
230 ElementBinding e = wildcard.getElement(qName, atts);
231 if(e != null)
232 {
233 element = e;
234 if(!qName.equals(e.getQName()))
235 {
236 throw new JBossXBRuntimeException(
237 "There is a bug in ModelGroupBinding.Cursor.getElement(QName,Attributes) impl"
238 );
239 }
240 break;
241 }
242 }
243 }
244 return element;
245 }
246
247 protected List addItem(List list, Object o)
248 {
249 switch(list.size())
250 {
251 case 0:
252 list = Collections.singletonList(o);
253 break;
254 case 1:
255 list = new ArrayList (list);
256 default:
257 list.add(o);
258 }
259 return list;
260 }
261 }
262 }
263 |
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