From e5b7380c874745c989d1816b8f552504f038e1bc Mon Sep 17 00:00:00 2001
From: lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68>
Date: Thu, 26 Sep 2013 20:33:20 +0000
Subject: 2.0 branch for possible maintenance release

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1526672 13f79535-47bb-0310-9956-ffa450edef68
---
 .../src/main/java/util/PolicyHelper.java           | 74 ++++++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100644 sca-java-2.x/branches/2.0/maven/archetypes/policy/src/main/resources/archetype-resources/src/main/java/util/PolicyHelper.java

(limited to 'sca-java-2.x/branches/2.0/maven/archetypes/policy/src/main/resources/archetype-resources/src/main/java/util/PolicyHelper.java')

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;
+    }
+}
-- 
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