winery/org.eclipse.winery.repository/src/main/java/org/eclipse/winery/repository/resources/servicetemplates/boundarydefinitions/PropertyMappingsResource.java

   1 /*******************************************************************************
   2  * Copyright (c) 2013-2014 University of Stuttgart.
   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  *     Oliver Kopp - initial API and implementation
  11  *******************************************************************************/
  12 package org.eclipse.winery.repository.resources.servicetemplates.boundarydefinitions;
  13
  14 import java.util.Iterator;
  15
  16 import javax.ws.rs.Consumes;
  17 import javax.ws.rs.DELETE;
  18 import javax.ws.rs.FormParam;
  19 import javax.ws.rs.POST;
  20 import javax.ws.rs.Path;
  21 import javax.ws.rs.PathParam;
  22 import javax.ws.rs.core.MediaType;
  23 import javax.ws.rs.core.Response;
  24 import javax.ws.rs.core.Response.Status;
  25
  26 import org.apache.commons.lang3.StringUtils;
  27 import org.eclipse.winery.common.ModelUtilities;
  28 import org.eclipse.winery.common.Util;
  29 import org.eclipse.winery.model.tosca.TBoundaryDefinitions.Properties.PropertyMappings;
  30 import org.eclipse.winery.model.tosca.TEntityTemplate;
  31 import org.eclipse.winery.model.tosca.TPropertyMapping;
  32 import org.eclipse.winery.repository.backend.BackendUtils;
  33 import org.eclipse.winery.repository.resources.servicetemplates.ServiceTemplateResource;
  34 import org.restdoc.annotations.RestDoc;
  35
  36 public class PropertyMappingsResource {
  37
  38         private final PropertyMappings propertyMappings;
  39         private final ServiceTemplateResource res;
  40
  41
  42         public PropertyMappingsResource(PropertyMappings propertyMappings, ServiceTemplateResource res) {
  43                 this.propertyMappings = propertyMappings;
  44                 this.res = res;
  45         }
  46
  47         @Path("{serviceTemplatePropertyRef}")
  48         @DELETE
  49         public Response onDelete(@PathParam("serviceTemplatePropertyRef") String serviceTemplatePropertyRef) {
  50                 serviceTemplatePropertyRef = Util.URLdecode(serviceTemplatePropertyRef);
  51                 Iterator<TPropertyMapping> iterator = this.propertyMappings.getPropertyMapping().iterator();
  52                 while (iterator.hasNext()) {
  53                         TPropertyMapping propertyMapping = iterator.next();
  54                         if (propertyMapping.getServiceTemplatePropertyRef().equals(serviceTemplatePropertyRef)) {
  55                                 iterator.remove();
  56                                 return BackendUtils.persist(this.res);
  57                         }
  58                 }
  59                 // if the property mapping was not found, we reach this point
  60                 // otherwise "iterator.remove()" has called and the resource persisted
  61                 return Response.status(Status.NOT_FOUND).build();
  62         }
  63
  64         private void updatePropertyMapping(TPropertyMapping propertyMapping, String serviceTemplatePropertyRef, TEntityTemplate template, String targetPropertyRef) {
  65                 propertyMapping.setServiceTemplatePropertyRef(serviceTemplatePropertyRef);
  66                 propertyMapping.setTargetObjectRef(template);
  67                 propertyMapping.setTargetPropertyRef(targetPropertyRef);
  68         }
  69
  70         @RestDoc(methodDescription = "Creates or updates a property mapping with the given fields")
  71         @POST
  72         @Consumes(MediaType.APPLICATION_FORM_URLENCODED)
  73         // @formatter:off
  74         public Response onPost(
  75                 @FormParam("serviceTemplatePropertyRef") String serviceTemplatePropertyRef,
  76                 @FormParam("targetObjectRef") String targetObjectRef,
  77                 @FormParam("targetPropertyRef") String targetPropertyRef
  78         ) {
  79         // @formatter:on
  80                 if (StringUtils.isEmpty(serviceTemplatePropertyRef)) {
  81                         return Response.status(Status.BAD_REQUEST).entity("serviceTemplatePropertyRef must not be empty").build();
  82                 }
  83                 if (StringUtils.isEmpty(targetObjectRef)) {
  84                         return Response.status(Status.BAD_REQUEST).entity("targetObjectRef must not be empty").build();
  85                 }
  86                 if (StringUtils.isEmpty(targetPropertyRef)) {
  87                         return Response.status(Status.BAD_REQUEST).entity("targetPropertyRef must not be empty").build();
  88                 }
  89
  90                 TEntityTemplate template = ModelUtilities.findNodeTemplateOrRequirementOfNodeTemplateOrCapabilityOfNodeTemplateOrRelationshipTemplate(this.res.getServiceTemplate().getTopologyTemplate(), targetObjectRef);
  91                 if (template == null) {
  92                         return Response.status(Status.BAD_REQUEST).entity("targetObjectRef " + targetObjectRef + " could not be resolved.").build();
  93                 }
  94
  95                 // replace propertyMapping if it exists
  96                 Iterator<TPropertyMapping> iterator = this.propertyMappings.getPropertyMapping().iterator();
  97                 while (iterator.hasNext()) {
  98                         TPropertyMapping propertyMapping = iterator.next();
  99                         if (propertyMapping.getServiceTemplatePropertyRef().equals(serviceTemplatePropertyRef)) {
 100                                 // we found a property with the same mapping
 101                                 // just update it ...
 102                                 this.updatePropertyMapping(propertyMapping, serviceTemplatePropertyRef, template, targetPropertyRef);
 103                                 // ... and finish processing
 104                                 return BackendUtils.persist(this.res);
 105                         }
 106                 }
 107
 108                 // the property mapping didn't exist,
 109                 // we create a new one
 110                 TPropertyMapping newPropertyMapping = new TPropertyMapping();
 111                 this.updatePropertyMapping(newPropertyMapping, serviceTemplatePropertyRef, template, targetPropertyRef);
 112                 return BackendUtils.persist(this.res);
 113         }
 114
 115 }