1 files changed, 52 insertions, 0 deletions
diff --git a/winery/org.eclipse.winery.topologymodeler/src/main/java/org/eclipse/winery/topologymodeler/addons/topologycompleter/analyzer/PlaceHolderAnalyzer.java b/winery/org.eclipse.winery.topologymodeler/src/main/java/org/eclipse/winery/topologymodeler/addons/topologycompleter/analyzer/PlaceHolderAnalyzer.java
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--- /dev/null
+++ b/winery/org.eclipse.winery.topologymodeler/src/main/java/org/eclipse/winery/topologymodeler/addons/topologycompleter/analyzer/PlaceHolderAnalyzer.java
@@ -0,0 +1,52 @@
+/*******************************************************************************
+ * Copyright (c) 2013 Pascal Hirmer.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and the Apache License 2.0 which both accompany this distribution,
+ * and are available at http://www.eclipse.org/legal/epl-v10.html
+ * and http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Contributors:
+ *    Pascal Hirmer - initial API and implementation
+ *******************************************************************************/
+
+package org.eclipse.winery.topologymodeler.addons.topologycompleter.analyzer;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.eclipse.winery.model.tosca.TNodeTemplate;
+import org.eclipse.winery.model.tosca.TNodeType;
+import org.eclipse.winery.topologymodeler.addons.topologycompleter.helper.Constants;
+import org.eclipse.winery.topologymodeler.addons.topologycompleter.helper.Utils;
+
+/**
+ * This class analyzes the occurrence of place holders in a topology and writes them to an {@link ArrayList}.
+ */
+public class PlaceHolderAnalyzer {
+
+	/**
+	 * This method searches {@link TNodeTemplate}s that are derived from the abstract "PlaceHolder" type and adds them to a list.
+	 *
+	 * @param toscaAnalyzer
+	 *            the {@link TOSCAAnalyzer} object to access the data model
+	 *
+	 * @return the found place holders of the topology as a list.
+	 */
+	public static List<TNodeTemplate> analyzePlaceHolders(TOSCAAnalyzer toscaAnalyzer) {
+
+		List<TNodeTemplate> foundPlaceHolders = new ArrayList<TNodeTemplate>();
+
+		// Check the type of the NodeTemplates, write them to a list if the type is derived from the common place holder type.
+		for (TNodeTemplate nodeTemplate : toscaAnalyzer.getNodeTemplates()) {
+
+			TNodeType nodeType = Utils.getNodeTypeForId(toscaAnalyzer.getNodeTypes(), nodeTemplate.getType());
+
+			if (nodeType != null && nodeType.getDerivedFrom() != null && nodeType.getDerivedFrom().getTypeRef().getLocalPart().equals(Constants.PLACE_HOLDER_QNAME.getLocalPart()) &&
+					nodeType.getDerivedFrom().getTypeRef().getNamespaceURI().equals(Constants.PLACE_HOLDER_QNAME.getNamespaceURI())) {
+				foundPlaceHolders.add(nodeTemplate);
+			}
+		}
+		return foundPlaceHolders;
+	}
+}