winery/org.eclipse.winery.repository/src/main/java/org/eclipse/winery/repository/resources/_support/collections/withid/EntityWithIdCollectionResource.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012-2013 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._support.collections.withid;
  13
  14 import java.lang.reflect.Constructor;
  15 import java.util.List;
  16
  17 import org.eclipse.winery.repository.resources._support.IPersistable;
  18 import org.eclipse.winery.repository.resources._support.collections.EntityCollectionResource;
  19 import org.eclipse.winery.repository.resources._support.collections.IIdDetermination;
  20 import org.slf4j.Logger;
  21 import org.slf4j.LoggerFactory;
  22
  23 public abstract class EntityWithIdCollectionResource<EntityResourceT extends EntityWithIdResource<EntityT>, EntityT> extends EntityCollectionResource<EntityResourceT, EntityT> {
  24
  25         private static final Logger logger = LoggerFactory.getLogger(EntityWithIdCollectionResource.class);
  26
  27
  28         /**
  29          * {@inheritDoc}
  30          */
  31         public EntityWithIdCollectionResource(Class<EntityResourceT> entityResourceTClazz, Class<EntityT> entityTClazz, List<EntityT> list, IPersistable res) {
  32                 super(entityResourceTClazz, entityTClazz, list, res);
  33         }
  34
  35         /**
  36          * Each CollectionResource has to implement the id getting by itself as
  37          * TOSCA XSD does not provide a general purpose id fetching mechanism
  38          */
  39         @Override
  40         public abstract String getId(EntityT entity);
  41
  42         @Override
  43         protected EntityResourceT getEntityResourceInstance(EntityT entity, int idx) {
  44                 Constructor<EntityResourceT> constructor;
  45                 try {
  46                         constructor = this.entityResourceTClazz.getConstructor(IIdDetermination.class, this.entityTClazz, int.class, List.class, this.res.getClass());
  47                 } catch (Exception e) {
  48                         try {
  49                                 constructor = this.entityResourceTClazz.getConstructor(IIdDetermination.class, this.entityTClazz, int.class, List.class, IPersistable.class);
  50                         } catch (Exception e2) {
  51                                 EntityWithIdCollectionResource.logger.debug("Could not get constructor", e);
  52                                 EntityWithIdCollectionResource.logger.debug("res.getClass() was {}", this.res.getClass());
  53                                 throw new IllegalStateException(e2);
  54                         }
  55                 }
  56                 EntityResourceT newInstance;
  57                 try {
  58                         newInstance = constructor.newInstance(this, entity, idx, this.list, this.res);
  59                 } catch (Exception e) {
  60                         EntityWithIdCollectionResource.logger.debug("Could not instantiate class", e);
  61                         throw new IllegalStateException(e);
  62                 }
  63                 return newInstance;
  64         }
  65
  66 }