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
|
/*
* 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.core.loader;
import java.util.ArrayList;
import java.util.List;
import javax.xml.namespace.QName;
import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
import static javax.xml.stream.XMLStreamConstants.START_ELEMENT;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import static org.osoa.sca.Constants.SCA_NS;
import org.osoa.sca.annotations.Constructor;
import org.osoa.sca.annotations.Reference;
import org.apache.tuscany.spi.deployer.DeploymentContext;
import org.apache.tuscany.spi.extension.LoaderExtension;
import org.apache.tuscany.spi.loader.LoaderRegistry;
import org.apache.tuscany.spi.loader.LoaderUtil;
import org.apache.tuscany.spi.model.IntentMap;
import org.apache.tuscany.spi.model.IntentName;
import org.apache.tuscany.spi.model.ModelObject;
import org.apache.tuscany.spi.model.PolicySet;
import org.apache.tuscany.spi.model.PolicySetReference;
import org.apache.tuscany.spi.model.Qualifier;
import org.apache.tuscany.spi.model.WSPolicyAttachment;
/**
* Loads a PolicySet definition from an SCDL file.
*
* @version $Rev$ $Date$
*/
public class PolicySetLoader extends LoaderExtension<PolicySet> {
private static final String WSPOLICY_NAMESPACE = "http://schemas.xmlsoap.org/ws/2004/09/policy";
private static final QName POLICYSET = new QName(SCA_NS, "policySet");
private static final QName INTENTMAP = new QName(SCA_NS, "intentMap");
private static final QName QUALIFIER = new QName(SCA_NS, "qualifier");
private static final QName POLICYSETREFERENCE = new QName(SCA_NS, "policySetReference");
private static final QName WSPOLICYATTACHMENT = new QName(WSPOLICY_NAMESPACE, "PolicyAttachment");
@Constructor
public PolicySetLoader(@Reference LoaderRegistry registry) {
super(registry);
}
@Override
public QName getXMLType() {
return POLICYSET;
}
public PolicySet load(ModelObject object, XMLStreamReader reader,
DeploymentContext deploymentContext)
throws XMLStreamException {
assert POLICYSET.equals(reader.getName());
String name = reader.getAttributeValue(null, "name");
String provides = reader.getAttributeValue(null, "provides");
String appliesTo = reader.getAttributeValue(null, "appliesTo");
PolicySet policySet = new PolicySet(new QName(SCA_NS, name), parseIntentName(provides));
String[] appliesToArtifact = split(appliesTo);
for (String artifact : appliesToArtifact) {
policySet.addAppliedArtifacts(new QName(SCA_NS, artifact));
}
while (true) {
switch (reader.next()) {
case START_ELEMENT:
QName qname = reader.getName();
if (INTENTMAP.equals(qname)) {
policySet.addIntentMap(loadIntentMap(reader, deploymentContext));
} else if (POLICYSETREFERENCE.equals(qname)) {
policySet.addPolicySetReference(loadPolicyReference(reader, deploymentContext));
} else if (WSPOLICYATTACHMENT.equals(qname)) {
policySet.addWsPolicyAttachment(loadWSPolicyAttachment(reader, deploymentContext));
}
reader.next();
break;
case END_ELEMENT:
if (reader.getName().equals(POLICYSET)) {
return policySet;
}
break;
}
}
}
private PolicySetReference loadPolicyReference(XMLStreamReader reader, DeploymentContext deploymentContext)
throws XMLStreamException {
assert POLICYSETREFERENCE.equals(reader.getName());
String name = reader.getAttributeValue(null, "name");
LoaderUtil.skipToEndElement(reader);
return new PolicySetReference(new QName(SCA_NS, name));
}
private IntentMap loadIntentMap(XMLStreamReader reader, DeploymentContext deploymentContext)
throws XMLStreamException {
assert INTENTMAP.equals(reader.getName());
String defaultIntentAttr = reader.getAttributeValue(null, "default");
String provides = reader.getAttributeValue(null, "provides");
IntentMap intentMap = new IntentMap(defaultIntentAttr, java.util.Arrays.asList(split(provides)));
//parentPolicySet.addIntentMap(intentMap);
while (true) {
switch (reader.next()) {
case START_ELEMENT:
QName qname = reader.getName();
if (QUALIFIER.equals(qname)) {
intentMap.addQualifier(loadQualifier(reader, deploymentContext));
}
reader.next();
break;
case END_ELEMENT:
if (reader.getName().equals(INTENTMAP)) {
return intentMap;
}
}
}
}
private Qualifier loadQualifier(XMLStreamReader reader, DeploymentContext deploymentContext)
throws XMLStreamException {
assert QUALIFIER.equals(reader.getName());
String name = reader.getAttributeValue(null, "name");
Qualifier qualifier = new Qualifier(name);
while (true) {
switch (reader.next()) {
case START_ELEMENT:
QName qname = reader.getName();
if (INTENTMAP.equals(qname)) {
qualifier.setIntentMap(loadIntentMap(reader, deploymentContext));
} else if (WSPOLICYATTACHMENT.equals(qname)) {
qualifier.addWsPolicyAttachment(loadWSPolicyAttachment(reader, deploymentContext));
}
reader.next();
break;
case END_ELEMENT:
if (reader.getName().equals(QUALIFIER)) {
return qualifier;
}
}
}
}
private WSPolicyAttachment loadWSPolicyAttachment(XMLStreamReader reader, DeploymentContext deploymentContext)
throws XMLStreamException {
return new WSPolicyAttachment();
}
/**
* Split a string to string array separated by " "
*/
private static String[] split(String string) {
if (string == null) {
return new String[0];
}
String[] intents = string.split("[ ]+");
return intents;
}
private static List<IntentName> parseIntentName(String attributes) {
String[] intents = split(attributes);
List<IntentName> result = new ArrayList<IntentName>(intents.length);
for (String intent : intents) {
result.add(new IntentName(intent));
}
return result;
}
}
|
