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diff --git a/winery/org.eclipse.winery.repository/src/main/java/org/eclipse/winery/repository/resources/servicetemplates/boundarydefinitions/PropertyMappingsResource.java b/winery/org.eclipse.winery.repository/src/main/java/org/eclipse/winery/repository/resources/servicetemplates/boundarydefinitions/PropertyMappingsResource.java
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index 0000000..a6872e0
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+++ b/winery/org.eclipse.winery.repository/src/main/java/org/eclipse/winery/repository/resources/servicetemplates/boundarydefinitions/PropertyMappingsResource.java
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+/*******************************************************************************
+ * Copyright (c) 2013-2014 University of Stuttgart.
+ * 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:
+ *     Oliver Kopp - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.winery.repository.resources.servicetemplates.boundarydefinitions;
+
+import java.util.Iterator;
+
+import javax.ws.rs.Consumes;
+import javax.ws.rs.DELETE;
+import javax.ws.rs.FormParam;
+import javax.ws.rs.POST;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.Response.Status;
+
+import org.apache.commons.lang3.StringUtils;
+import org.eclipse.winery.common.ModelUtilities;
+import org.eclipse.winery.common.Util;
+import org.eclipse.winery.model.tosca.TBoundaryDefinitions.Properties.PropertyMappings;
+import org.eclipse.winery.model.tosca.TEntityTemplate;
+import org.eclipse.winery.model.tosca.TPropertyMapping;
+import org.eclipse.winery.repository.backend.BackendUtils;
+import org.eclipse.winery.repository.resources.servicetemplates.ServiceTemplateResource;
+import org.restdoc.annotations.RestDoc;
+
+public class PropertyMappingsResource {
+	
+	private final PropertyMappings propertyMappings;
+	private final ServiceTemplateResource res;
+	
+	
+	public PropertyMappingsResource(PropertyMappings propertyMappings, ServiceTemplateResource res) {
+		this.propertyMappings = propertyMappings;
+		this.res = res;
+	}
+	
+	@Path("{serviceTemplatePropertyRef}")
+	@DELETE
+	public Response onDelete(@PathParam("serviceTemplatePropertyRef") String serviceTemplatePropertyRef) {
+		serviceTemplatePropertyRef = Util.URLdecode(serviceTemplatePropertyRef);
+		Iterator<TPropertyMapping> iterator = this.propertyMappings.getPropertyMapping().iterator();
+		while (iterator.hasNext()) {
+			TPropertyMapping propertyMapping = iterator.next();
+			if (propertyMapping.getServiceTemplatePropertyRef().equals(serviceTemplatePropertyRef)) {
+				iterator.remove();
+				return BackendUtils.persist(this.res);
+			}
+		}
+		// if the property mapping was not found, we reach this point
+		// otherwise "iterator.remove()" has called and the resource persisted
+		return Response.status(Status.NOT_FOUND).build();
+	}
+	
+	private void updatePropertyMapping(TPropertyMapping propertyMapping, String serviceTemplatePropertyRef, TEntityTemplate template, String targetPropertyRef) {
+		propertyMapping.setServiceTemplatePropertyRef(serviceTemplatePropertyRef);
+		propertyMapping.setTargetObjectRef(template);
+		propertyMapping.setTargetPropertyRef(targetPropertyRef);
+	}
+	
+	@RestDoc(methodDescription = "Creates or updates a property mapping with the given fields")
+	@POST
+	@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
+	// @formatter:off
+	public Response onPost(
+		@FormParam("serviceTemplatePropertyRef") String serviceTemplatePropertyRef,
+		@FormParam("targetObjectRef") String targetObjectRef,
+		@FormParam("targetPropertyRef") String targetPropertyRef
+	) {
+	// @formatter:on
+		if (StringUtils.isEmpty(serviceTemplatePropertyRef)) {
+			return Response.status(Status.BAD_REQUEST).entity("serviceTemplatePropertyRef must not be empty").build();
+		}
+		if (StringUtils.isEmpty(targetObjectRef)) {
+			return Response.status(Status.BAD_REQUEST).entity("targetObjectRef must not be empty").build();
+		}
+		if (StringUtils.isEmpty(targetPropertyRef)) {
+			return Response.status(Status.BAD_REQUEST).entity("targetPropertyRef must not be empty").build();
+		}
+		
+		TEntityTemplate template = ModelUtilities.findNodeTemplateOrRequirementOfNodeTemplateOrCapabilityOfNodeTemplateOrRelationshipTemplate(this.res.getServiceTemplate().getTopologyTemplate(), targetObjectRef);
+		if (template == null) {
+			return Response.status(Status.BAD_REQUEST).entity("targetObjectRef " + targetObjectRef + " could not be resolved.").build();
+		}
+		
+		// replace propertyMapping if it exists
+		Iterator<TPropertyMapping> iterator = this.propertyMappings.getPropertyMapping().iterator();
+		while (iterator.hasNext()) {
+			TPropertyMapping propertyMapping = iterator.next();
+			if (propertyMapping.getServiceTemplatePropertyRef().equals(serviceTemplatePropertyRef)) {
+				// we found a property with the same mapping
+				// just update it ...
+				this.updatePropertyMapping(propertyMapping, serviceTemplatePropertyRef, template, targetPropertyRef);
+				// ... and finish processing
+				return BackendUtils.persist(this.res);
+			}
+		}
+		
+		// the property mapping didn't exist,
+		// we create a new one
+		TPropertyMapping newPropertyMapping = new TPropertyMapping();
+		this.updatePropertyMapping(newPropertyMapping, serviceTemplatePropertyRef, template, targetPropertyRef);
+		return BackendUtils.persist(this.res);
+	}
+	
+}