1
|
/**
|
2
|
* Copyright (C) 2017 EDIT
|
3
|
* European Distributed Institute of Taxonomy
|
4
|
* http://www.e-taxonomy.eu
|
5
|
*
|
6
|
* The contents of this file are subject to the Mozilla Public License Version 1.1
|
7
|
* See LICENSE.TXT at the top of this package for the full license terms.
|
8
|
*/
|
9
|
package eu.etaxonomy.cdm.debug;
|
10
|
|
11
|
import java.beans.PropertyDescriptor;
|
12
|
import java.io.PrintStream;
|
13
|
import java.lang.reflect.InvocationTargetException;
|
14
|
import java.util.ArrayList;
|
15
|
import java.util.Collection;
|
16
|
import java.util.HashMap;
|
17
|
import java.util.HashSet;
|
18
|
import java.util.List;
|
19
|
import java.util.Map;
|
20
|
import java.util.Set;
|
21
|
|
22
|
import org.apache.commons.beanutils.PropertyUtils;
|
23
|
import org.apache.commons.lang.builder.HashCodeBuilder;
|
24
|
import org.apache.log4j.Logger;
|
25
|
import org.hibernate.Hibernate;
|
26
|
import org.hibernate.Session;
|
27
|
import org.hibernate.collection.internal.AbstractPersistentCollection;
|
28
|
import org.hibernate.envers.internal.entities.mapper.relation.lazy.proxy.CollectionProxy;
|
29
|
import org.hibernate.envers.internal.entities.mapper.relation.lazy.proxy.MapProxy;
|
30
|
import org.hibernate.envers.internal.entities.mapper.relation.lazy.proxy.SortedMapProxy;
|
31
|
|
32
|
import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
|
33
|
import eu.etaxonomy.cdm.model.common.CdmBase;
|
34
|
import eu.etaxonomy.cdm.persistence.dao.initializer.AbstractBeanInitializer;
|
35
|
|
36
|
/**
|
37
|
* @author a.kohlbecker
|
38
|
* @since 08.11.2017
|
39
|
*
|
40
|
*/
|
41
|
public class PersistentContextAnalyzer {
|
42
|
|
43
|
/**
|
44
|
*
|
45
|
*/
|
46
|
private static final char HASH_SEPARATOR = '.';
|
47
|
|
48
|
/**
|
49
|
*
|
50
|
*/
|
51
|
private static final String COPY_ENTITY = "!";
|
52
|
|
53
|
/**
|
54
|
*
|
55
|
*/
|
56
|
private static final String IN_PERSITENT_CONTEXT = "*";
|
57
|
|
58
|
private final static Logger logger = Logger.getLogger(PersistentContextAnalyzer.class);
|
59
|
|
60
|
private Session session;
|
61
|
|
62
|
private CdmBase entity;
|
63
|
|
64
|
private Map<EntityKey, CdmBase> entityyMap = new HashMap<>();
|
65
|
|
66
|
private List<String> entityPathList = new ArrayList<>();
|
67
|
|
68
|
private Map<EntityKey, List<String>> entityPathsMap = new HashMap<>();
|
69
|
|
70
|
private Set<EntityKey> copyEntitiyKeys = new HashSet<>();
|
71
|
|
72
|
private Set<Object> objectsSeen = new HashSet<>();
|
73
|
|
74
|
private boolean showHashCodes = false;
|
75
|
|
76
|
|
77
|
public PersistentContextAnalyzer(CdmBase entity, Session session){
|
78
|
this.session = session;
|
79
|
this.entity = entity;
|
80
|
update();
|
81
|
}
|
82
|
|
83
|
public PersistentContextAnalyzer(CdmBase entity){
|
84
|
this(entity, null);
|
85
|
}
|
86
|
|
87
|
/**
|
88
|
* - find copied entities in the graph
|
89
|
*/
|
90
|
private void update() {
|
91
|
|
92
|
entityyMap.clear();
|
93
|
entityPathList.clear();
|
94
|
entityPathsMap.clear();
|
95
|
copyEntitiyKeys.clear();
|
96
|
objectsSeen.clear();
|
97
|
|
98
|
String propertyPath = "";
|
99
|
|
100
|
analyzeEntity(entity, propertyPath);
|
101
|
}
|
102
|
|
103
|
public void printEntityGraph(PrintStream printStream){
|
104
|
printLegend(printStream);
|
105
|
for(String path : entityPathList) {
|
106
|
printStream.println(path);
|
107
|
}
|
108
|
}
|
109
|
|
110
|
public void printCopyEntities(PrintStream printStream){
|
111
|
printLegend(printStream);
|
112
|
for(EntityKey key : copyEntitiyKeys){
|
113
|
for(String path : entityPathsMap.get(key)) {
|
114
|
printStream.println(path);
|
115
|
}
|
116
|
}
|
117
|
}
|
118
|
|
119
|
/**
|
120
|
* @param printStream
|
121
|
*/
|
122
|
protected void printLegend(PrintStream printStream) {
|
123
|
printStream.println("PersistentContextAnalyzer legend: ");
|
124
|
printStream.println(" - '.{objectHash}': unique copy entity, followed by object hash (only shown when showHashCodes is enabled)");
|
125
|
printStream.println(" - '!{objectHash}': detected copy entity, followed by object hash");
|
126
|
printStream.println(" - '*': entity mapped in persistent context");
|
127
|
}
|
128
|
|
129
|
/**
|
130
|
*
|
131
|
*/
|
132
|
protected void analyzeEntity(CdmBase bean, String propertyPath) {
|
133
|
|
134
|
EntityKey entityKey = new EntityKey(bean);
|
135
|
|
136
|
propertyPath += "[" + entityKey;
|
137
|
String flags = "";
|
138
|
CdmBase mappedEntity = entityyMap.put(entityKey, bean);
|
139
|
|
140
|
boolean hashAdded = false;
|
141
|
|
142
|
if(session != null && session.contains(bean)){
|
143
|
flags += IN_PERSITENT_CONTEXT;
|
144
|
}
|
145
|
if(mappedEntity != null && mappedEntity != bean) {
|
146
|
copyEntitiyKeys.add(entityKey);
|
147
|
flags += COPY_ENTITY + bean.hashCode();
|
148
|
hashAdded = true;
|
149
|
}
|
150
|
if(showHashCodes && ! hashAdded){
|
151
|
flags += HASH_SEPARATOR + bean.hashCode();
|
152
|
}
|
153
|
if(!flags.isEmpty()){
|
154
|
propertyPath += "(" + flags + ")";
|
155
|
}
|
156
|
propertyPath += "]";
|
157
|
|
158
|
logger.debug(propertyPath);
|
159
|
|
160
|
entityPathList.add(propertyPath);
|
161
|
if(!entityPathsMap.containsKey(entityKey)){
|
162
|
entityPathsMap.put(entityKey, new ArrayList<>());
|
163
|
}
|
164
|
entityPathsMap.get(entityKey).add(propertyPath);
|
165
|
|
166
|
if(!objectsSeen.add(bean)){
|
167
|
// avoid cycles, do not recurse into properties of objects that have been analyzed already
|
168
|
return;
|
169
|
}
|
170
|
|
171
|
Set<PropertyDescriptor> properties = AbstractBeanInitializer.getProperties(bean, null);
|
172
|
for(PropertyDescriptor prop : properties){
|
173
|
|
174
|
try {
|
175
|
Object propertyValue = PropertyUtils.getProperty(bean, prop.getName());
|
176
|
|
177
|
if(propertyValue == null){
|
178
|
continue;
|
179
|
}
|
180
|
|
181
|
String propertyPathSuffix = "." + prop.getName();
|
182
|
|
183
|
if(Hibernate.isInitialized(propertyValue)) {
|
184
|
|
185
|
if(CdmBase.class.isAssignableFrom(prop.getPropertyType())){
|
186
|
analyzeEntity(HibernateProxyHelper.deproxy(propertyValue, CdmBase.class), propertyPath + propertyPathSuffix);
|
187
|
continue;
|
188
|
}
|
189
|
|
190
|
Collection<CdmBase> collection = null;
|
191
|
if(propertyValue instanceof AbstractPersistentCollection){
|
192
|
if (propertyValue instanceof Collection) {
|
193
|
collection = (Collection<CdmBase>) propertyValue;
|
194
|
} else if (propertyValue instanceof Map) {
|
195
|
collection = ((Map<?,CdmBase>)propertyValue).values();
|
196
|
} else {
|
197
|
logger.error("unhandled subtype of AbstractPersistentCollection");
|
198
|
}
|
199
|
} else if (propertyValue instanceof CollectionProxy
|
200
|
|| propertyValue instanceof MapProxy<?, ?>
|
201
|
|| propertyValue instanceof SortedMapProxy<?, ?>){
|
202
|
//hibernate envers collections
|
203
|
collection = (Collection<CdmBase>)propertyValue;
|
204
|
}
|
205
|
|
206
|
if(collection != null){
|
207
|
for(CdmBase collectionItem : collection){
|
208
|
analyzeEntity(HibernateProxyHelper.deproxy(collectionItem, CdmBase.class), propertyPath + propertyPathSuffix);
|
209
|
}
|
210
|
} else {
|
211
|
// logger.error("Unhandled property type " + propertyValue.getClass().getName());
|
212
|
}
|
213
|
}
|
214
|
|
215
|
} catch (IllegalAccessException e) {
|
216
|
String message = "Illegal access on property " + prop;
|
217
|
logger.error(message);
|
218
|
throw new RuntimeException(message, e);
|
219
|
} catch (InvocationTargetException e) {
|
220
|
String message = "Cannot invoke property " + prop + " not found";
|
221
|
logger.error(message);
|
222
|
throw new RuntimeException(message, e);
|
223
|
} catch (NoSuchMethodException e) {
|
224
|
String message = "Property " + prop.getName() + " not found for class " + bean.getClass();
|
225
|
logger.error(message);
|
226
|
}
|
227
|
|
228
|
}
|
229
|
}
|
230
|
|
231
|
/**
|
232
|
* @return the showHashCodes
|
233
|
*/
|
234
|
public boolean isShowHashCodes() {
|
235
|
return showHashCodes;
|
236
|
}
|
237
|
|
238
|
/**
|
239
|
* @param showHashCodes the showHashCodes to set
|
240
|
*/
|
241
|
public void setShowHashCodes(boolean showHashCodes) {
|
242
|
boolean runUpdate = this.showHashCodes != showHashCodes;
|
243
|
this.showHashCodes = showHashCodes;
|
244
|
if(runUpdate){
|
245
|
update();
|
246
|
}
|
247
|
}
|
248
|
|
249
|
class EntityKey {
|
250
|
|
251
|
Class type;
|
252
|
int id;
|
253
|
|
254
|
public EntityKey(CdmBase entity){
|
255
|
type = entity.getClass();
|
256
|
id = entity.getId();
|
257
|
}
|
258
|
|
259
|
/**
|
260
|
* @return the type
|
261
|
*/
|
262
|
public Class getType() {
|
263
|
return type;
|
264
|
}
|
265
|
|
266
|
/**
|
267
|
* @return the id
|
268
|
*/
|
269
|
public int getId() {
|
270
|
return id;
|
271
|
}
|
272
|
|
273
|
/**
|
274
|
* {@inheritDoc}
|
275
|
*/
|
276
|
@Override
|
277
|
public int hashCode() {
|
278
|
return new HashCodeBuilder(17, 31)
|
279
|
.append(type)
|
280
|
.append(id)
|
281
|
.toHashCode();
|
282
|
}
|
283
|
|
284
|
@Override
|
285
|
public String toString() {
|
286
|
return type.getSimpleName() + "#" + getId();
|
287
|
}
|
288
|
|
289
|
}
|
290
|
|
291
|
|
292
|
}
|