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17 package org.apache.geronimo.gbean;
18
19 import java.io.Externalizable  ;
20 import java.io.IOException ;
21 import java.io.ObjectInput ;
22 import java.io.ObjectOutput ;
23 import java.util.Collections ;
24 import java.util.Comparator ;
25 import java.util.HashMap ;
26 import java.util.HashSet ;
27 import java.util.Iterator ;
28 import java.util.Map ;
29 import java.util.Set ;
30
31
34 public class GBeanData implements Externalizable {
35 private static final long serialVersionUID = -1012491431781444074L;
36
37 private Externalizable backwardExternalizables[] = new Externalizable [] {
38 new V0Externalizable(),
39 new V1Externalizable()
40 };
41
42 private GBeanInfo gbeanInfo;
43 private final Map attributes;
44 private final Map references;
45 private final Set dependencies;
46 private AbstractName abstractName;
47 private int priority;
48
49 public GBeanData() {
50 attributes = new HashMap ();
51 references = new HashMap ();
52 dependencies = new HashSet ();
53 }
54
55 public GBeanData(GBeanInfo gbeanInfo) {
56 this();
57 setGBeanInfo(gbeanInfo);
58 }
59
60 public GBeanData(AbstractName abstractName, GBeanInfo gbeanInfo) {
61 this();
62 this.abstractName = abstractName;
63 setGBeanInfo(gbeanInfo);
64 }
65
66 public GBeanData(GBeanData gbeanData) {
67 setGBeanInfo(gbeanData.gbeanInfo);
68 attributes = new HashMap (gbeanData.attributes);
69 references = new HashMap (gbeanData.references);
70 dependencies = new HashSet (gbeanData.dependencies);
71 abstractName = gbeanData.abstractName;
72 }
73
74 public AbstractName getAbstractName() {
75 return abstractName;
76 }
77
78 public void setAbstractName(AbstractName abstractName) {
79 this.abstractName = abstractName;
80 }
81
82 public GBeanInfo getGBeanInfo() {
83 return gbeanInfo;
84 }
85
86 public void clearAttribute(String name) {
87 attributes.remove(name);
88 }
89
90 public void clearReference(String name) {
91 references.remove(name);
92 }
93
94 public void setGBeanInfo(GBeanInfo gbeanInfo) {
95 this.gbeanInfo = gbeanInfo;
96 if (gbeanInfo == null) {
97 priority = GBeanInfo.PRIORITY_NORMAL;
98 } else {
99 priority = gbeanInfo.getPriority();
100 }
101 }
102
103 public Map getAttributes() {
104 return new HashMap (attributes);
105 }
106
107 public Set getAttributeNames() {
108 return new HashSet (attributes.keySet());
109 }
110
111 public Object getAttribute(String name) {
112 return attributes.get(name);
113 }
114
115 public void setAttribute(String name, Object value) {
116 attributes.put(name, value);
117 }
118
119 public Map getReferences() {
120 return new HashMap (references);
121 }
122
123 public Set getReferencesNames() {
124 return new HashSet (references.keySet());
125 }
126
127 public ReferencePatterns getReferencePatterns(String name) {
128 return (ReferencePatterns) references.get(name);
129 }
130
131 public void setReferencePattern(String name, AbstractNameQuery pattern) {
132 setReferencePatterns(name, Collections.singleton(pattern));
133 }
134
135 public void setReferencePattern(String name, AbstractName abstractName) {
136 setReferencePatterns(name, new ReferencePatterns(abstractName));
137 }
138
139 public void setReferencePatterns(String name, Set patterns) {
140 setReferencePatterns(name, new ReferencePatterns(patterns));
141 }
142
143 public void setReferencePatterns(String name, ReferencePatterns patterns) {
144 references.put(name, patterns);
145 }
146
147 public Set getDependencies() {
148 return new HashSet (dependencies);
149 }
150
151 public void setDependencies(Set dependencies) {
152 this.dependencies.clear();
153 addDependencies(dependencies);
154 }
155
156 public void addDependencies(Set dependencies) {
157 for (Iterator iterator = dependencies.iterator(); iterator.hasNext();) {
158 Object dependency = iterator.next();
159 if (dependency instanceof AbstractName) {
160 AbstractName name = (AbstractName) dependency;
161 addDependency(name);
162 } else if (dependency instanceof AbstractNameQuery) {
163 AbstractNameQuery nameQuery = (AbstractNameQuery) dependency;
164 addDependency(nameQuery);
165 } else if (dependency instanceof ReferencePatterns) {
166 ReferencePatterns referencePatterns = (ReferencePatterns) dependency;
167 addDependency(referencePatterns);
168 } else {
169 throw new IllegalArgumentException ("Unknown dependency type: " + dependency);
170 }
171 }
172 }
173
174 public void addDependency(ReferencePatterns dependency) {
175 this.dependencies.add(dependency);
176 }
177
178 public void addDependency(AbstractNameQuery refInfo) {
179 this.dependencies.add(new ReferencePatterns(refInfo));
180 }
181
182 public void addDependency(AbstractName dependency) {
183 this.dependencies.add(new ReferencePatterns(dependency));
184 }
185
186 public int getPriority() {
187 return priority;
188 }
189
190 public void setPriority(int priority) {
191 this.priority = priority;
192 }
193
194 public void writeExternal(ObjectOutput out) throws IOException {
195 out.writeObject(new Integer (backwardExternalizables.length -1));
197
198 out.writeObject(gbeanInfo);
200
201 out.writeObject(abstractName);
203
204 out.writeInt(priority);
206
207 out.writeInt(attributes.size());
209 for (Iterator iterator = attributes.entrySet().iterator(); iterator.hasNext();) {
210 Map.Entry entry = (Map.Entry ) iterator.next();
211 String name = (String ) entry.getKey();
212 Object value = entry.getValue();
213 try {
214 out.writeObject(name);
215 out.writeObject(value);
216 } catch (IOException e) {
217 throw (IOException ) new IOException ("Unable to write attribute: " + name + " in gbean: " + abstractName).initCause(e);
218 } catch (NoClassDefFoundError e) {
219 throw (IOException ) new IOException ("Unable to write attribute: " + name + " in gbean: " + abstractName).initCause(e);
220 }
221 }
222
223 out.writeInt(references.size());
225 for (Iterator iterator = references.entrySet().iterator(); iterator.hasNext();) {
226 Map.Entry entry = (Map.Entry ) iterator.next();
227 String name = (String ) entry.getKey();
228 ReferencePatterns value = (ReferencePatterns) entry.getValue();
229 try {
230 out.writeObject(name);
231 out.writeObject(value);
232 } catch (IOException e) {
233 throw (IOException ) new IOException ("Unable to write reference pattern: " + name + " in gbean: " + abstractName).initCause(e);
234 }
235 }
236 out.writeInt(dependencies.size());
238 for (Iterator iterator = dependencies.iterator(); iterator.hasNext();) {
239 ReferencePatterns referencePatterns = (ReferencePatterns) iterator.next();
240 try {
241 out.writeObject(referencePatterns);
242 } catch (IOException e) {
243 throw (IOException ) new IOException ("Unable to write dependency pattern in gbean: " + abstractName).initCause(e);
244 }
245 }
246 }
247
248
249 public void readExternal(ObjectInput in) throws IOException , ClassNotFoundException {
250 Object opaque = in.readObject();
251 if (opaque instanceof Integer ) {
252 backwardExternalizables[((Integer ) opaque).intValue()].readExternal(in);
253 } else {
254 gbeanInfo = (GBeanInfo) opaque;
255 backwardExternalizables[0].readExternal(in);
256 }
257 }
258
259
263 public static class PriorityComparator implements Comparator {
264
265 public int compare(Object o1, Object o2) {
266 if (o1 instanceof GBeanData && o2 instanceof GBeanData) {
267 return ((GBeanData)o1).priority - ((GBeanData)o2).priority;
268 }
269 return 0;
270 }
271 }
272
273 private class V0Externalizable implements Externalizable {
274
275 public void writeExternal(ObjectOutput out) throws IOException {
276 throw new UnsupportedOperationException ();
277 }
278
279 public final void readExternal(ObjectInput in) throws IOException , ClassNotFoundException {
280 readGBeanInfo(in);
282
283 try {
285 abstractName = (AbstractName) in.readObject();
286 } catch (IOException e) {
287 throw (IOException ) new IOException ("Unable to deserialize AbstractName for GBeanData of type " + gbeanInfo.getClassName()).initCause(e);
288 }
289
290 readPriority(in);
291
292 try {
293 int attributeCount = in.readInt();
295 for (int i = 0; i < attributeCount; i++) {
296 String attributeName = (String ) in.readObject();
297 Object attributeValue;
298 try {
299 attributeValue = in.readObject();
300 } catch (ClassNotFoundException e) {
301 throw new ClassNotFoundException ("Unable to find class used in GBeanData " + abstractName + ", attribute: " + attributeName, e);
302 } catch (IOException e) {
303 throw (IOException ) new IOException ("Unable to deserialize GBeanData " + abstractName + ", attribute: " + attributeName).initCause(e);
304 }
305 setAttribute(attributeName, attributeValue);
306 }
307
308 int endpointCount = in.readInt();
310 for (int i = 0; i < endpointCount; i++) {
311 String referenceName = (String ) in.readObject();
312 ReferencePatterns referencePattern;
313 try {
314 referencePattern = (ReferencePatterns) in.readObject();
315 } catch (ClassNotFoundException e) {
316 throw new ClassNotFoundException ("Unable to find class used in GBeanData " + abstractName + ", reference: " + referenceName, e);
317 } catch (IOException e) {
318 throw (IOException ) new IOException ("Unable to deserialize GBeanData " + abstractName + ", reference: " + referenceName).initCause(e);
319 }
320 setReferencePatterns(referenceName, referencePattern);
321 }
322
323 int dependencyCount = in.readInt();
325 for (int i = 0; i < dependencyCount; i++) {
326 ReferencePatterns depdendencyPattern = (ReferencePatterns) in.readObject();
327 dependencies.add(depdendencyPattern);
328 }
329 } catch (IOException e) {
330 throw (IOException ) new IOException ("Unable to deserialize GBeanData " + abstractName).initCause(e);
331 } catch (ClassNotFoundException e) {
332 throw new ClassNotFoundException ("Unable to find class used in GBeanData " + abstractName, e);
333 }
334 }
335
336 protected void readGBeanInfo(ObjectInput in) throws IOException , ClassNotFoundException {
337 }
338
339 protected void readPriority(ObjectInput in) throws IOException , ClassNotFoundException {
340 priority = GBeanInfo.PRIORITY_NORMAL;
341 }
342
343 }
344
345 private class V1Externalizable extends V0Externalizable {
346
347 public void writeExternal(ObjectOutput out) throws IOException {
348 throw new UnsupportedOperationException ();
349 }
350
351 protected void readGBeanInfo(ObjectInput in) throws IOException , ClassNotFoundException {
352 gbeanInfo = (GBeanInfo) in.readObject();
353 }
354
355 protected void readPriority(ObjectInput in) throws IOException , ClassNotFoundException {
356 priority = in.readInt();
357 }
358
359 }
360
361 }
362
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