winery/org.eclipse.winery.topologymodeler/src/main/java/org/eclipse/winery/topologymodeler/resources/TopologyCompletionResource.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.resources;
  14
  15 import java.io.StringReader;
  16
  17 import javax.ws.rs.FormParam;
  18 import javax.ws.rs.GET;
  19 import javax.ws.rs.POST;
  20 import javax.ws.rs.Path;
  21 import javax.ws.rs.Produces;
  22 import javax.ws.rs.QueryParam;
  23 import javax.ws.rs.core.MediaType;
  24 import javax.ws.rs.core.Response;
  25 import javax.xml.bind.JAXBContext;
  26 import javax.xml.bind.JAXBException;
  27 import javax.xml.bind.Unmarshaller;
  28
  29 import org.eclipse.winery.model.tosca.Definitions;
  30 import org.eclipse.winery.model.tosca.TNodeTemplate;
  31 import org.eclipse.winery.model.tosca.TRelationshipTemplate;
  32 import org.eclipse.winery.model.tosca.TServiceTemplate;
  33 import org.eclipse.winery.model.tosca.TTopologyTemplate;
  34 import org.eclipse.winery.topologymodeler.addons.topologycompleter.helper.JAXBHelper;
  35 import org.eclipse.winery.topologymodeler.addons.topologycompleter.helper.RESTHelper;
  36
  37 /**
  38  * This class contains resources used for the topology completion.
  39  *
  40  */
  41 @Path("/")
  42 public class TopologyCompletionResource {
  43
  44         /**
  45          * Adds selected {@link TNodeTemplate}s and {@link TRelationshipTemplate}s
  46          * to a topology.
  47          *
  48          * @param topology
  49          *            the {@link TTopologyTemplate} as XML string
  50          * @param allChoices
  51          *            all possible choices as XML
  52          * @param selectedNodeTemplates
  53          *            the selected {@link TNodeTemplate}s as JSON array
  54          * @param selectedRelationshipTemplates
  55          *            the selected {@link TRelationshipTemplate}s as JSON array
  56          * @return the enhanced {@link TTopologyTemplate}
  57          */
  58         @Path("selectionhandler/")
  59         @GET
  60         @Produces(MediaType.TEXT_PLAIN)
  61         public Response handleSelection(
  62                         @QueryParam(value = "topology") String topology,
  63                         @QueryParam(value = "allChoices") String allChoices,
  64                         @QueryParam(value = "selectedNodeTemplates") String selectedNodeTemplates,
  65                         @QueryParam(value = "selectedRelationshipTemplates") String selectedRelationshipTemplates) {
  66                 return Response
  67                                 .ok()
  68                                 .entity(JAXBHelper.addTemplatesToTopology(topology, allChoices,
  69                                                 selectedNodeTemplates, selectedRelationshipTemplates))
  70                                 .build();
  71         }
  72
  73         /**
  74          * This resource is used to save a {@link TTopologyTemplate} to the repository.
  75          *
  76          * @param topology
  77          *            the topology to be saved
  78          * @param templateURL
  79          *                        the URL the {@link TTopologyTemplate} of the topology template
  80          * @param repositoryURL
  81          *                        the URL of the repository
  82          * @param topologyName
  83          *                        the name of the saved {@link TTopologyTemplate}
  84          * @param topologyNamespace
  85          *                        the namespace of the saved {@link TTopologyTemplate}
  86          * @param overwriteTopology
  87          *                        whether the {@link TTopologyTemplate} should be overwritten or not
  88          *
  89          * @return whether the save operation has been successful or not
  90          */
  91         @Path("topologysaver/")
  92         @POST
  93         public Response saveTopology(@FormParam("topology") String topology,
  94                         @FormParam(value = "templateURL") String templateURL,
  95                         @FormParam(value = "repositoryURL") String repositoryURL,
  96                         @FormParam(value = "topologyName") String topologyName,
  97                         @FormParam(value = "topologyNamespace") String topologyNamespace,
  98                         @FormParam(value = "overwriteTopology") String overwriteTopology) {
  99                 try {
 100
 101                         boolean overwrite = Boolean.parseBoolean(overwriteTopology);
 102
 103                         // initiate JaxB context
 104                         JAXBContext context;
 105                         context = JAXBContext.newInstance(Definitions.class);
 106                         StringReader reader = new StringReader(topology);
 107
 108                         // unmarshall the topology XML string
 109                         Unmarshaller um;
 110
 111                         um = context.createUnmarshaller();
 112
 113                         Definitions jaxBDefinitions = (Definitions) um.unmarshal(reader);
 114                         TServiceTemplate st = (TServiceTemplate) jaxBDefinitions
 115                                         .getServiceTemplateOrNodeTypeOrNodeTypeImplementation()
 116                                         .get(0);
 117                         TTopologyTemplate toBeSaved = st.getTopologyTemplate();
 118
 119                         // depending on the selected save method (overwrite or create new)
 120                         // the save method is called
 121                         if (overwrite) {
 122                                 RESTHelper.saveCompleteTopology(toBeSaved, templateURL, true,
 123                                                 "", "", repositoryURL);
 124                         } else {
 125                                 RESTHelper.saveCompleteTopology(toBeSaved, templateURL, false,
 126                                                 topologyName, topologyNamespace, repositoryURL);
 127                         }
 128
 129                         return Response.ok().build();
 130
 131                 } catch (JAXBException e) {
 132                         e.printStackTrace();
 133                         return Response.serverError().build();
 134                 }
 135         }
 136 }