winery/org.eclipse.winery.topologymodeler/src/main/java/org/eclipse/winery/topologymodeler/addons/topologycompleter/analyzer/DeferredAnalyzer.java

   1 /*******************************************************************************
   2  * Copyright (c) 2013 Pascal Hirmer.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * and the Apache License 2.0 which both accompany this distribution,
   6  * and are available at http://www.eclipse.org/legal/epl-v10.html
   7  * and http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Contributors:
  10  *    Pascal Hirmer - initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.winery.topologymodeler.addons.topologycompleter.analyzer;
  14
  15 import java.util.ArrayList;
  16 import java.util.List;
  17
  18 import org.eclipse.winery.model.tosca.TNodeTemplate;
  19 import org.eclipse.winery.model.tosca.TRelationshipTemplate;
  20 import org.eclipse.winery.model.tosca.TTopologyTemplate;
  21 import org.eclipse.winery.topologymodeler.addons.topologycompleter.helper.Constants;
  22
  23 /**
  24  * This class contains a method to analyze a TOSCA {@link TTopologyTemplate} for
  25  * the occurrence of "Deferred"-{@link TRelationshipTemplate}s.
  26  *
  27  * A "Deferred"-{@link TRelationshipTemplate} serves as place holder for any number of Node or Relationship
  28  * Templates.
  29  */
  30 public class DeferredAnalyzer {
  31
  32         /**
  33          * Iterates over all {@link TRelationshipTemplate} and checks if its type is "deferred".
  34          *
  35          * @param toscaAnalyzer
  36          *            the {@link TOSCAAnalyzer} object to access the data model
  37          *
  38          * @return a list of found deferred {@link TRelationshipTemplate}s
  39          */
  40         public static List<TRelationshipTemplate> analyzeDeferredRelations(TOSCAAnalyzer toscaAnalyzer) {
  41
  42                 List<TRelationshipTemplate> foundDeferredRelations = new ArrayList<TRelationshipTemplate>();
  43
  44                 for (TRelationshipTemplate relationshipTemplate : toscaAnalyzer.getRelationshipTemplates()) {
  45                         if (relationshipTemplate.getType() != null && relationshipTemplate.getType().getLocalPart().equals(Constants.DEFERRED_QNAME.getLocalPart()) &&
  46                                         relationshipTemplate.getType().getNamespaceURI().equals(Constants.DEFERRED_QNAME.getNamespaceURI())) {
  47
  48                                 // TODO: This step has to be done until the "Provisioning-API"
  49                                 // is implemented. The Deferred RelationshipTemplate can only be
  50                                 // completed if Requirements exist at the source template.
  51                                 TNodeTemplate source = (TNodeTemplate) relationshipTemplate.getSourceElement().getRef();
  52
  53                                 if (source.getRequirements() != null) {
  54                                         foundDeferredRelations.add(relationshipTemplate);
  55                                 }
  56                         }
  57                 }
  58                 return foundDeferredRelations;
  59         }
  60 }