gerrit.onap Code Review - vfc/nfvo/wfengine.git/blob

   1 /*******************************************************************************
   2  * Copyright (c) 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.reqscaps;
  13
  14 import java.util.List;
  15
  16 import javax.ws.rs.Consumes;
  17 import javax.ws.rs.FormParam;
  18 import javax.ws.rs.POST;
  19 import javax.ws.rs.core.MediaType;
  20 import javax.ws.rs.core.Response;
  21 import javax.ws.rs.core.Response.Status;
  22
  23 import org.eclipse.winery.common.ModelUtilities;
  24 import org.eclipse.winery.model.tosca.TRequirement;
  25 import org.eclipse.winery.model.tosca.TRequirementRef;
  26 import org.eclipse.winery.repository.resources._support.IPersistable;
  27 import org.eclipse.winery.repository.resources._support.collections.CollectionsHelper;
  28 import org.eclipse.winery.repository.resources._support.collections.withoutid.EntityWithoutIdCollectionResource;
  29 import org.eclipse.winery.repository.resources.servicetemplates.ServiceTemplateResource;
  30
  31 import com.sun.jersey.api.view.Viewable;
  32
  33 /**
  34  * This class is mirrored at
  35  * {@link org.eclipse.winery.repository.resources.servicetemplates.boundarydefinitions.reqscaps.CapabilitiesResource}
  36  */
  37 public class RequirementsResource extends EntityWithoutIdCollectionResource<RequirementResource, TRequirementRef> {
  38
  39         public RequirementsResource(IPersistable res, List<TRequirementRef> refs) {
  40                 super(RequirementResource.class, TRequirementRef.class, refs, res);
  41         }
  42
  43         @Override
  44         public Viewable getHTML() {
  45                 throw new IllegalStateException("Not yet required: boundarydefinitions.jsp renders all tab content.");
  46         }
  47
  48         /**
  49          * Adds an element using form-encoding
  50          *
  51          * This is necessary as TRequirementRef contains an IDREF and the XML
  52          * snippet itself does not contain the target id
  53          *
  54          * @param name the optional name of the requirement
  55          * @param reference the reference to a requirement in the topology
  56          */
  57         @POST
  58         @Consumes(MediaType.APPLICATION_FORM_URLENCODED)
  59         public Response addNewElement(@FormParam("name") String name, @FormParam("ref") String reference) {
  60                 // Implementation adapted from super addNewElement
  61
  62                 if (reference == null) {
  63                         return Response.status(Status.BAD_REQUEST).entity("A reference has to be provided").build();
  64                 }
  65
  66                 TRequirementRef ref = new TRequirementRef();
  67                 ref.setName(name); // may also be null
  68
  69                 // The XML model forces us to put a reference to the object and not just the string
  70                 ServiceTemplateResource rs = (ServiceTemplateResource) this.res;
  71                 TRequirement resolved = ModelUtilities.resolveRequirement(rs.getServiceTemplate(), reference);
  72                 // In case nothing was found: report back to the user
  73                 if (resolved == null) {
  74                         return Response.status(Status.BAD_REQUEST).entity("Reference could not be resolved").build();
  75                 }
  76
  77                 ref.setRef(resolved);
  78
  79                 // "this.alreadyContains(ref)" cannot be called as this leads to a mappable exception: The data does not contain an id where the given ref attribute may point to
  80
  81                 this.list.add(ref);
  82                 return CollectionsHelper.persist(this.res, this, ref);
  83         }
  84
  85 }