winery/org.eclipse.winery.repository/src/main/java/org/eclipse/winery/repository/resources/entitytypes/relationshiptypes/ImplementationsOfOneRelationshipTypeResource.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012-2013,2015 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.entitytypes.relationshiptypes;
  13
  14 import java.io.StringWriter;
  15 import java.util.ArrayList;
  16 import java.util.Collection;
  17
  18 import javax.ws.rs.core.Response;
  19 import javax.xml.namespace.QName;
  20
  21 import org.eclipse.winery.common.ids.definitions.RelationshipTypeId;
  22 import org.eclipse.winery.common.ids.definitions.RelationshipTypeImplementationId;
  23 import org.eclipse.winery.repository.backend.BackendUtils;
  24 import org.eclipse.winery.repository.resources.entitytypes.ImplementationsOfOneType;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28 import com.fasterxml.jackson.core.JsonFactory;
  29 import com.fasterxml.jackson.core.JsonGenerator;
  30
  31 public class ImplementationsOfOneRelationshipTypeResource extends ImplementationsOfOneType {
  32
  33         public ImplementationsOfOneRelationshipTypeResource(RelationshipTypeId typeId) {
  34                 super(typeId);
  35         }
  36
  37
  38         private static final Logger logger = LoggerFactory.getLogger(ImplementationsOfOneRelationshipTypeResource.class);
  39
  40
  41         /**
  42          * required by implementations.jsp
  43          *
  44          * Method similar top the one of ImplementationsOfOneNodeTypeResource
  45          *
  46          * @return for each node type implementation implementing the associated
  47          *         node type
  48          */
  49         @Override
  50         public String getImplementationsTableData() {
  51                 String res;
  52                 JsonFactory jsonFactory = new JsonFactory();
  53                 StringWriter tableDataSW = new StringWriter();
  54                 try {
  55                         JsonGenerator jGenerator = jsonFactory.createGenerator(tableDataSW);
  56                         jGenerator.writeStartArray();
  57
  58                         Collection<RelationshipTypeImplementationId> allNTIids = BackendUtils.getAllElementsRelatedWithATypeAttribute(RelationshipTypeImplementationId.class, this.getTypeId().getQName());
  59                         for (RelationshipTypeImplementationId ntiID : allNTIids) {
  60                                 jGenerator.writeStartArray();
  61                                 jGenerator.writeString(ntiID.getNamespace().getDecoded());
  62                                 jGenerator.writeString(ntiID.getXmlId().getDecoded());
  63                                 jGenerator.writeEndArray();
  64                         }
  65                         jGenerator.writeEndArray();
  66                         jGenerator.close();
  67                         tableDataSW.close();
  68                         res = tableDataSW.toString();
  69                 } catch (Exception e) {
  70                         ImplementationsOfOneRelationshipTypeResource.logger.error(e.getMessage(), e);
  71                         res = "[]";
  72                 }
  73                 return res;
  74         }
  75
  76         @Override
  77         public String getType() {
  78                 return "relationshiptype";
  79         }
  80
  81         @Override
  82         public String getTypeStr() {
  83                 return "Relationship Type";
  84         }
  85
  86         @Override
  87         public Response getJSON() {
  88                 Collection<RelationshipTypeImplementationId> allImplementations = BackendUtils.getAllElementsRelatedWithATypeAttribute(RelationshipTypeImplementationId.class, this.getTypeId().getQName());
  89                 ArrayList<QName> res = new ArrayList<QName>(allImplementations.size());
  90                 for (RelationshipTypeImplementationId id : allImplementations) {
  91                         res.add(id.getQName());
  92                 }
  93                 return Response.ok().entity(res).build();
  94         }
  95 }