winery/org.eclipse.winery.topologymodeler/src/main/java/org/eclipse/winery/topologymodeler/addons/topologycompleter/placeholderhandling/PlaceHolderHandler.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.placeholderhandling;
  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.TNodeType;
  20 import org.eclipse.winery.topologymodeler.addons.topologycompleter.analyzer.TOSCAAnalyzer;
  21 import org.eclipse.winery.topologymodeler.addons.topologycompleter.helper.Constants;
  22
  23 /**
  24  * This class finds suitable replacement types for a place holder.
  25  */
  26 public class PlaceHolderHandler {
  27
  28         /**
  29          * This method returns a suitable {@link TNodeType} to replace a given {@link TNodeTemplate} placeholder.
  30          * A suitable Node Type to replace a placeholder is matched by its type. If the type of a NodeType equals the identifier of a placeholder
  31          * it can be used to replace it.
  32          *
  33          * @param nodeTemplate
  34          *            the placeholder to be replaced
  35          * @param toscaAnalyzer
  36          *            the {@link TOSCAAnalyzer} object to access the data model
  37          *
  38          * @return a list of {@link TNodeType}s to replace the placeholder
  39          */
  40         public static List<TNodeType> getSuitableNodeTypes(TNodeTemplate nodeTemplate, TOSCAAnalyzer toscaAnalyzer) {
  41
  42                 List<TNodeType> suitableNodeTypes = new ArrayList<>();
  43
  44                 // TODO: matching the name without a name space is unsafe and only works assuming that no one creates generic NodeTemplates with the same name as the place holders.
  45                 // However a NodeTemplate name does not have a name space.
  46                 if (nodeTemplate.getName().equals(Constants.PlaceHolders.WEBSERVER.toString())) {
  47                         for (TNodeType nodeType : toscaAnalyzer.getNodeTypes()) {
  48                                 if (nodeType.getDerivedFrom() != null && nodeType.getDerivedFrom().getTypeRef().getLocalPart().equals(Constants.PlaceHolders.WEBSERVER.toString())) {
  49                                         suitableNodeTypes.add(nodeType);
  50                                 }
  51                         }
  52                 } else if (nodeTemplate.getName().equals(Constants.PlaceHolders.DATABASE.toString())) {
  53                         for (TNodeType nodeType : toscaAnalyzer.getNodeTypes()) {
  54                                 if (nodeType.getDerivedFrom() != null && nodeType.getDerivedFrom().getTypeRef().getLocalPart().equals(Constants.PlaceHolders.DATABASE.toString())) {
  55                                         suitableNodeTypes.add(nodeType);
  56                                 }
  57                         }
  58                 } else if (nodeTemplate.getName().equals(Constants.PlaceHolders.OPERATINGSYSTEM.toString())) {
  59                         for (TNodeType nodeType : toscaAnalyzer.getNodeTypes()) {
  60                                 if (nodeType.getDerivedFrom() != null && nodeType.getDerivedFrom().getTypeRef().getLocalPart().equals(Constants.PlaceHolders.OPERATINGSYSTEM.toString())) {
  61                                         suitableNodeTypes.add(nodeType);
  62                                 }
  63                         }
  64                 } else if (nodeTemplate.getName().equals(Constants.PlaceHolders.CLOUDPROVIDER.toString())) {
  65                         for (TNodeType nodeType : toscaAnalyzer.getNodeTypes()) {
  66                                 if (nodeType.getDerivedFrom() != null && nodeType.getDerivedFrom().getTypeRef().getLocalPart().equals(Constants.PlaceHolders.CLOUDPROVIDER.toString())) {
  67                                         suitableNodeTypes.add(nodeType);
  68                                 }
  69                         }
  70                 }
  71
  72                 return suitableNodeTypes;
  73         }
  74 }