diff options
Diffstat (limited to 'sca-java-2.x/branches/2.0/maven/archetypes/policy/src/main/resources/archetype-resources/src/main/java/util/PolicyHelper.java')
-rw-r--r-- | sca-java-2.x/branches/2.0/maven/archetypes/policy/src/main/resources/archetype-resources/src/main/java/util/PolicyHelper.java | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/sca-java-2.x/branches/2.0/maven/archetypes/policy/src/main/resources/archetype-resources/src/main/java/util/PolicyHelper.java b/sca-java-2.x/branches/2.0/maven/archetypes/policy/src/main/resources/archetype-resources/src/main/java/util/PolicyHelper.java new file mode 100644 index 0000000000..2f21ae2e4b --- /dev/null +++ b/sca-java-2.x/branches/2.0/maven/archetypes/policy/src/main/resources/archetype-resources/src/main/java/util/PolicyHelper.java @@ -0,0 +1,74 @@ +#set( $symbol_pound = '#' ) +#set( $symbol_dollar = '$' ) +#set( $symbol_escape = '\' ) +/* + * 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 ${package}.util; + +import java.util.ArrayList; +import java.util.List; + +import javax.xml.namespace.QName; + +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; + +public class PolicyHelper { + + /** + * Find a list of policy sets that provide the given intent + * @param subject + * @param providedIntent + * @return + */ + public static List<PolicySet> findPolicySets(PolicySubject subject, QName providedIntent) { + List<PolicySet> policies = new ArrayList<PolicySet>(); + List<PolicySet> policySets = subject.getPolicySets(); + for (PolicySet ps : policySets) { + for (Intent i : ps.getProvidedIntents()) { + if (i.getName().equals(providedIntent)) { + policies.add(ps); + } + } + } + return policies; + } + + /** + * Find a list of policies of the given type + * @param <T> + * @param subject + * @param policyType + * @return + */ + public static <T> List<T> findPolicies(PolicySubject subject, QName providedIntent, Class<T> policyType) { + List<T> policies = new ArrayList<T>(); + List<PolicySet> policySets = findPolicySets(subject, providedIntent); + for (PolicySet ps : policySets) { + for (PolicyExpression exp : ps.getPolicies()) { + if (policyType.isInstance(exp.getPolicy())) { + policies.add(policyType.cast(exp.getPolicy())); + } + } + } + return policies; + } +} |