001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
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008: * and Distribution License("CDDL") (collectively, the "License"). You
009: * may not use this file except in compliance with the License. You can obtain
010: * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
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015: * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
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018: * accompanied this code. If applicable, add the following below the License
019: * Header, with the fields enclosed by brackets [] replaced by your own
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035: */
036:
037: package com.sun.xml.ws.policy.sourcemodel;
038:
039: import com.sun.xml.ws.policy.AssertionSet;
040: import com.sun.xml.ws.policy.NestedPolicy;
041: import com.sun.xml.ws.policy.Policy;
042: import com.sun.xml.ws.policy.PolicyAssertion;
043: import com.sun.xml.ws.policy.PolicyException;
044: import com.sun.xml.ws.policy.privateutil.LocalizationMessages;
045: import com.sun.xml.ws.policy.privateutil.PolicyLogger;
046: import java.util.Iterator;
047:
048: /**
049: *
050: * @author Marek Potociar
051: */
052: public final class PolicyModelGenerator {
053: private static final PolicyLogger LOGGER = PolicyLogger
054: .getLogger(PolicyModelTranslator.class);
055: private static final PolicyModelGenerator generator = new PolicyModelGenerator();
056:
057: /**
058: * This private constructor avoids direct instantiation from outside of the class
059: */
060: private PolicyModelGenerator() {
061: // nothing to initialize
062: }
063:
064: /**
065: * Factory method that returns {@link PolicyModelGenerator} instance.
066: *
067: * @return {@link PolicyModelGenerator} instance
068: */
069: public static PolicyModelGenerator getGenerator() {
070: return generator;
071: }
072:
073: /**
074: * This method translates a {@link Policy} into a
075: * {@link com.sun.xml.ws.policy.sourcemodel policy infoset}. The resulting
076: * PolicySourceModel is disconnected from the input policy, thus any
077: * additional changes in the policy will have no effect on the PolicySourceModel.
078: *
079: * @param policy The policy to be translated into an infoset. May be null.
080: * @return translated The policy infoset. May be null if the input policy was
081: * null.
082: * @throws PolicyException in case Policy translation fails.
083: */
084: public PolicySourceModel translate(final Policy policy)
085: throws PolicyException {
086: LOGGER.entering(policy);
087:
088: PolicySourceModel model = null;
089:
090: if (policy == null) {
091: LOGGER.fine(LocalizationMessages
092: .WSP_0047_POLICY_IS_NULL_RETURNING());
093: } else {
094: model = PolicySourceModel.createPolicySourceModel(policy
095: .getId(), policy.getName());
096:
097: final ModelNode rootNode = model.getRootNode();
098: final ModelNode exactlyOneNode = rootNode
099: .createChildExactlyOneNode();
100: for (AssertionSet set : policy) {
101: final ModelNode alternativeNode = exactlyOneNode
102: .createChildAllNode();
103: for (PolicyAssertion assertion : set) {
104: final AssertionData data = AssertionData
105: .createAssertionData(assertion.getName(),
106: assertion.getValue(), assertion
107: .getAttributes());
108: final ModelNode assertionNode = alternativeNode
109: .createChildAssertionNode(data);
110: if (assertion.hasNestedPolicy()) {
111: translate(assertionNode, assertion
112: .getNestedPolicy());
113: }
114: if (assertion.hasNestedAssertions()) {
115: translate(assertion
116: .getNestedAssertionsIterator(),
117: assertionNode);
118: }
119: }
120: }
121: }
122:
123: LOGGER.exiting(model);
124: return model;
125: }
126:
127: /**
128: * Iterates through a nested policy and return the corresponding policy info model.
129: *
130: * @param policy The nested policy
131: * @return The nested policy translated to the policy info model
132: */
133: private ModelNode translate(final ModelNode parentAssertion,
134: final NestedPolicy policy) {
135: final ModelNode nestedPolicyRoot = parentAssertion
136: .createChildPolicyNode();
137: final ModelNode exactlyOneNode = nestedPolicyRoot
138: .createChildExactlyOneNode();
139: final AssertionSet set = policy.getAssertionSet();
140: final ModelNode alternativeNode = exactlyOneNode
141: .createChildAllNode();
142: for (PolicyAssertion assertion : set) {
143: final AssertionData data = AssertionData
144: .createAssertionData(assertion.getName(), assertion
145: .getValue(), assertion.getAttributes());
146: final ModelNode assertionNode = alternativeNode
147: .createChildAssertionNode(data);
148: if (assertion.hasNestedPolicy()) {
149: translate(assertionNode, assertion.getNestedPolicy());
150: }
151: if (assertion.hasNestedAssertions()) {
152: translate(assertion.getNestedAssertionsIterator(),
153: assertionNode);
154: }
155: }
156: return nestedPolicyRoot;
157: }
158:
159: /**
160: * Iterates through all contained assertions and adds them to the info model.
161: *
162: * @param assertions The set of contained assertions
163: * @param assertionNode The node to which the assertions are added as child nodes
164: */
165: private void translate(
166: final Iterator<PolicyAssertion> assertionParametersIterator,
167: final ModelNode assertionNode) {
168: while (assertionParametersIterator.hasNext()) {
169: final PolicyAssertion assertionParameter = assertionParametersIterator
170: .next();
171: final AssertionData data = AssertionData
172: .createAssertionParameterData(assertionParameter
173: .getName(), assertionParameter.getValue(),
174: assertionParameter.getAttributes());
175: final ModelNode assertionParameterNode = assertionNode
176: .createChildAssertionParameterNode(data);
177: if (assertionParameter.hasNestedPolicy()) {
178: throw LOGGER
179: .logSevereException(new IllegalStateException(
180: LocalizationMessages
181: .WSP_0005_UNEXPECTED_POLICY_ELEMENT_FOUND_IN_ASSERTION_PARAM(assertionParameter)));
182: }
183: if (assertionParameter.hasNestedAssertions()) {
184: translate(assertionParameter
185: .getNestedAssertionsIterator(),
186: assertionParameterNode);
187: }
188: }
189: }
190: }
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