diff options
Diffstat (limited to 'sandbox/sebastien/java/embed/modules/builder/src/main/java/org/apache/tuscany/sca/builder/impl/IntentValidator.java')
-rw-r--r-- | sandbox/sebastien/java/embed/modules/builder/src/main/java/org/apache/tuscany/sca/builder/impl/IntentValidator.java | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/sandbox/sebastien/java/embed/modules/builder/src/main/java/org/apache/tuscany/sca/builder/impl/IntentValidator.java b/sandbox/sebastien/java/embed/modules/builder/src/main/java/org/apache/tuscany/sca/builder/impl/IntentValidator.java new file mode 100644 index 0000000000..b2f7a4ceed --- /dev/null +++ b/sandbox/sebastien/java/embed/modules/builder/src/main/java/org/apache/tuscany/sca/builder/impl/IntentValidator.java @@ -0,0 +1,139 @@ +/* + * 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.builder.impl; + +import java.util.List; + +import javax.xml.namespace.QName; + +import org.apache.tuscany.sca.assembly.Component; +import org.apache.tuscany.sca.assembly.Endpoint; +import org.apache.tuscany.sca.assembly.EndpointReference; +import org.apache.tuscany.sca.assembly.Implementation; +import org.apache.tuscany.sca.assembly.builder.BuilderContext; +import org.apache.tuscany.sca.assembly.builder.Messages; +import org.apache.tuscany.sca.assembly.builder.PolicyBuilder; +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.monitor.Monitor; +import org.apache.tuscany.sca.policy.Intent; +import org.apache.tuscany.sca.policy.PolicySubject; + +/** + * Intent Validator + */ +public class IntentValidator implements PolicyBuilder { + + /** + * Defaut constructor + * @param registry Extension Registry + */ + public IntentValidator(ExtensionPointRegistry registry) { + super(); + } + + public boolean build(Endpoint endpoint, BuilderContext context) { + return checkMutualExclusion(endpoint, context); + } + + public boolean build(EndpointReference endpointReference, BuilderContext context) { + boolean ok = checkMutualExclusion(endpointReference, context); + if(!ok) { + return false; + } + + Endpoint endpoint = endpointReference.getTargetEndpoint(); + if (endpoint == null) { + return true; + } + ok = checkMutualExclusion(endpointReference, endpoint, context); + List<Intent> intentList1 = endpointReference.getRequiredIntents(); + List<Intent> intentList2 = endpoint.getRequiredIntents(); + return ok; + } + + public boolean build(Component component, Implementation implementation, BuilderContext context) { + return true; + } + + public boolean build(EndpointReference endpointReference, Endpoint endpoint, BuilderContext context) { + return true; + } + + public QName getPolicyType() { + return null; + } + + public List<QName> getSupportedBindings() { + return null; + } + + /** + * Check if two policy subjects requires multually exclusive intents + * @param subject1 + * @param subject2 + * @param monitor + * @return + */ + private boolean checkMutualExclusion(PolicySubject subject1, PolicySubject subject2, BuilderContext context) { + if (subject1 == subject2 || subject1 == null || subject2 == null) { + return false; + } + for (Intent i1 : subject1.getRequiredIntents()) { + for (Intent i2 : subject2.getRequiredIntents()) { + if (i1.getExcludedIntents().contains(i2) || i2.getExcludedIntents().contains(i1)) { + Monitor.error(context.getMonitor(), + this, + Messages.ASSEMBLY_VALIDATION, + "MutuallyExclusiveIntents", + new Object[] {subject1, subject2}, + i1, + i2); + return true; + } + } + } + return false; + } + + private boolean checkMutualExclusion(PolicySubject subject, BuilderContext context) { + if (subject == null) { + return false; + } + List<Intent> intents = subject.getRequiredIntents(); + int size = intents.size(); + for (int i = 0; i < size; i++) { + for (int j = i + 1; j < size; j++) { + Intent i1 = intents.get(i); + Intent i2 = intents.get(j); + if (i1 != i2 && i1.getExcludedIntents().contains(i2) || i2.getExcludedIntents().contains(i1)) { + Monitor.error(context.getMonitor(), + this, + Messages.ASSEMBLY_VALIDATION, + "MutuallyExclusiveIntents", + subject, + i1, + i2); + return true; + } + } + } + return false; + } +} |