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Diffstat (limited to '')
-rw-r--r-- | sca-java-2.x/tags/2.0-Beta2/modules/assembly/src/main/java/org/apache/tuscany/sca/policy/util/PolicyHelper.java | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0-Beta2/modules/assembly/src/main/java/org/apache/tuscany/sca/policy/util/PolicyHelper.java b/sca-java-2.x/tags/2.0-Beta2/modules/assembly/src/main/java/org/apache/tuscany/sca/policy/util/PolicyHelper.java new file mode 100644 index 0000000000..8a4adb3d7f --- /dev/null +++ b/sca-java-2.x/tags/2.0-Beta2/modules/assembly/src/main/java/org/apache/tuscany/sca/policy/util/PolicyHelper.java @@ -0,0 +1,130 @@ +/* + * 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; + } + +} |