1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
|
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.tuscany.das.rdb.merge.impl;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.logging.Logger;
import org.apache.tuscany.das.rdb.config.Config;
import org.apache.tuscany.das.rdb.config.wrapper.QualifiedColumn;
import org.apache.tuscany.das.rdb.graphbuilder.impl.MultiTableRegistry;
import org.apache.tuscany.das.rdb.graphbuilder.impl.TableRegistry;
import org.apache.tuscany.sdo.impl.ChangeSummaryImpl;
import org.apache.tuscany.sdo.util.SDOUtil;
import commonj.sdo.ChangeSummary;
import commonj.sdo.DataGraph;
import commonj.sdo.DataObject;
import commonj.sdo.Property;
import commonj.sdo.Type;
import commonj.sdo.helper.TypeHelper;
public class GraphMerger {
private static Logger logger = Logger.getLogger("GraphMerger");
private Map keys = new HashMap();
private TableRegistry registry = new MultiTableRegistry();
private Config config = null;//JIRA-962 for any new tests with schema , we need this
// TODO lots of cleanup/design
public GraphMerger() {
// Empty Constructor
}
//JIRA-952
public GraphMerger(Config cfg) {
this.config = cfg;
}
// TODO Replace EMF reference with SDOUtil function when available
// (Tuscany-583)
public DataObject emptyGraph(Config config) {
if (config.getDataObjectModel() == null) {
throw new RuntimeException("DataObjectModel must be specified in the Config");
}
String uri = "http:///org.apache.tuscany.das.rdb/das";
TypeHelper typeHelper = SDOUtil.createTypeHelper();
Type rootType = SDOUtil.createType(typeHelper, uri + "/DataGraphRoot", "DataGraphRoot", false);
List types = SDOUtil.getTypes(typeHelper, config.getDataObjectModel());
if (types == null) {
throw new RuntimeException("SDO Types have not been registered for URI " + config.getDataObjectModel());
}
Iterator i = types.iterator();
while (i.hasNext()) {
Type type = (Type) i.next();
Property property = SDOUtil.createProperty(rootType, type.getName(), type);
SDOUtil.setContainment(property, true);
SDOUtil.setMany(property, true);
}
// Create the DataGraph
DataGraph g = SDOUtil.createDataGraph();
// Create the root object
g.createRootObject(rootType);
ChangeSummary summary = g.getChangeSummary();
summary.beginLogging();
return g.getRootObject();
}
public DataObject merge(List graphs) {
DataObject primaryGraph = (DataObject) graphs.get(0);
Iterator i = graphs.iterator();
if (i.hasNext()) {
i.next();
}
while (i.hasNext()) {
primaryGraph = merge(primaryGraph, (DataObject) i.next());
}
return primaryGraph;
}
public DataObject merge(DataObject primary, DataObject secondary) {
addGraphToRegistry(primary);
ChangeSummary summary = primary.getDataGraph().getChangeSummary();
summary.endLogging();
Iterator i = secondary.getType().getProperties().iterator();
while (i.hasNext()) {
Property p = (Property) i.next();
Iterator objects = secondary.getList(p.getName()).iterator();
while (objects.hasNext()) {
DataObject object = (DataObject) objects.next();
createObjectWithSubtree(primary, p, object);
}
}
((ChangeSummaryImpl) summary).resumeLogging();
return primary;
}
private void createObjectWithSubtree(DataObject root, Property p, DataObject object) {
Object pk = getPrimaryKey(object);
if (!registry.contains(object.getType().getName(), Collections.singletonList(pk))) {
DataObject newObject = root.createDataObject(p.getName());
Iterator attrs = object.getType().getProperties().iterator();
while (attrs.hasNext()) {
Property attr = (Property) attrs.next();
if (attr.getType().isDataType()) {
newObject.set(attr.getName(), object.get(attr));
}
}
registry.put(object.getType().getName(), Collections.singletonList(pk), newObject);
Iterator refs = object.getType().getProperties().iterator();
while (refs.hasNext()) {
Property ref = (Property) refs.next();
if (!ref.getType().isDataType()) {
List refObjects;
if (!ref.isMany()) {
refObjects = Collections.singletonList(object.get(ref));
} else {
refObjects = (List) object.get(ref);
}
Iterator iter = refObjects.iterator();
while (iter.hasNext()) {
DataObject refObject = (DataObject) iter.next();
createObjectWithSubtree(root, refObject.getContainmentProperty(), refObject);
refObject = registry.get(refObject.getType().getName(),
Collections.singletonList(getPrimaryKey(refObject)));
if (ref.isMany()) {
newObject.getList(newObject.getType().getProperty(ref.getName())).add(refObject);
} else {
newObject.set(newObject.getType().getProperty(ref.getName()), refObject);
}
}
}
}
}
}
private void addGraphToRegistry(DataObject graph1) {
Iterator i = graph1.getType().getProperties().iterator();
while (i.hasNext()) {
Property p = (Property) i.next();
Iterator objects = graph1.getList(p).iterator();
while (objects.hasNext()) {
DataObject object = (DataObject) objects.next();
Object pk = object.get(getPrimaryKeyName(object));
logger.finest("Adding object with pk " + pk + " to registry");
registry.put(object.getType().getName(), Collections.singletonList(pk), object);
}
}
}
private Object getPrimaryKey(DataObject object) {
String pkName = getPrimaryKeyName(object);
return object.get(pkName);
}
private String getPrimaryKeyName(DataObject object) {
return (String) keys.get(object.getType().getName());
}
//JIRA-952
public void addPrimaryKey(String key) {
QualifiedColumn column = null;
if(this.config != null && this.config.isDatabaseSchemaNameSupported()){
column = new QualifiedColumn(key, this.config.isDatabaseSchemaNameSupported());
}
else{
column = new QualifiedColumn(key);
}
logger.finest("Adding " + column.getTableName() + " " + column.getColumnName() + " to keys");
keys.put(column.getTableName(), column.getColumnName());
}
}
|
