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
|
/*
* 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.sca.policy.util;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import javax.xml.namespace.QName;
import org.apache.tuscany.sca.assembly.Binding;
import org.apache.tuscany.sca.definitions.Definitions;
import org.apache.tuscany.sca.policy.Intent;
import org.apache.tuscany.sca.policy.PolicyExpression;
import org.apache.tuscany.sca.policy.PolicySet;
import org.apache.tuscany.sca.policy.PolicySubject;
/**
* A utility that helps to navigate the policy model
* @tuscany.spi.extension.asclient
*/
public class PolicyHelper {
public PolicySet getPolicySet(PolicySubject subject, QName policySetName) {
for (PolicySet ps : subject.getPolicySets()) {
if (ps.getName().equals(policySetName)) {
return ps;
}
}
return null;
}
public Intent getIntent(Definitions subject, QName intentName) {
for (Intent i : subject.getIntents()) {
if (i.getName().equals(intentName)) {
return i;
}
}
return null;
}
public PolicySet getPolicySet(Definitions subject, QName policySetName) {
for (PolicySet ps : subject.getPolicySets()) {
if (ps.getName().equals(policySetName)) {
return ps;
}
}
return null;
}
public Intent getIntent(PolicySubject subject, QName intentName) {
for (Intent i : subject.getRequiredIntents()) {
if (i.getName().equals(intentName)) {
return i;
}
}
return null;
}
public Collection<PolicyExpression> getPolicyExpressions(PolicySubject subject, QName policyName) {
Collection<PolicyExpression> policies = new ArrayList<PolicyExpression>();
for (PolicySet ps : subject.getPolicySets()) {
for (PolicyExpression exp : ps.getPolicies()) {
if (exp.getName().equals(policyName)) {
policies.add(exp);
}
}
}
return policies;
}
public Collection<Object> getPolicies(PolicySubject subject, QName policyName) {
Collection<Object> policies = new ArrayList<Object>();
for (PolicySet ps : subject.getPolicySets()) {
for (PolicyExpression exp : ps.getPolicies()) {
if (exp.getName().equals(policyName)) {
policies.add(exp.getPolicy());
}
}
}
return policies;
}
public static PolicySet getPolicySet(Binding wsBinding, QName intentName) {
PolicySet returnPolicySet = null;
if (wsBinding instanceof PolicySubject) {
PolicySubject policiedBinding = (PolicySubject)wsBinding;
for (PolicySet policySet : policiedBinding.getPolicySets()) {
for (Intent intent : policySet.getProvidedIntents()) {
if (intent.getName().equals(intentName)) {
returnPolicySet = policySet;
break;
}
}
}
}
return returnPolicySet;
}
public static boolean isIntentRequired(Binding wsBinding, QName intent) {
if (wsBinding instanceof PolicySubject) {
List<Intent> intents = ((PolicySubject)wsBinding).getRequiredIntents();
for (Intent i : intents) {
if (intent.equals(i.getName())) {
return true;
}
}
}
return getPolicySet(wsBinding, intent) != null;
}
}
|
