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/*******************************************************************************
 * Copyright (c) 2012 Boeing.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Boeing - initial API and implementation
 *******************************************************************************/
package org.eclipse.osee.ats.impl.internal.util;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.eclipse.core.runtime.Assert;
import org.eclipse.osee.ats.api.IAtsObject;
import org.eclipse.osee.ats.api.IAtsServices;
import org.eclipse.osee.ats.api.IAtsWorkItem;
import org.eclipse.osee.ats.api.util.IArtifactResolver;
import org.eclipse.osee.ats.core.util.AtsUtilCore;
import org.eclipse.osee.framework.core.data.ArtifactId;
import org.eclipse.osee.framework.core.data.IArtifactType;
import org.eclipse.osee.framework.jdk.core.type.OseeCoreException;
import org.eclipse.osee.orcs.OrcsApi;
import org.eclipse.osee.orcs.data.ArtifactReadable;

/**
 * @author Donald G. Dunne
 */
public class ArtifactResolverImpl implements IArtifactResolver {

   private final IAtsServices services;
   private final OrcsApi orcsApi;

   public ArtifactResolverImpl(IAtsServices services, OrcsApi orcsApi) {
      this.services = services;
      this.orcsApi = orcsApi;
   }

   @Override
   public ArtifactId get(IAtsObject atsObject) throws OseeCoreException {
      if (atsObject instanceof ArtifactReadable) {
         return (ArtifactReadable) atsObject;
      }
      ArtifactReadable artifact = orcsApi.getQueryFactory().fromBranch(AtsUtilCore.getAtsBranch()).andUuid(
         atsObject.getUuid()).getResults().getAtMostOneOrNull();
      return artifact;
   }

   @Override
   @SuppressWarnings("unchecked")
   public <A extends ArtifactId> A get(IAtsWorkItem workItem, Class<?> clazz) throws OseeCoreException {
      Assert.isNotNull(workItem, "Work Item can not be null");
      ArtifactId artifact = get(workItem);
      if (clazz.isInstance(artifact)) {
         return (A) artifact;
      }
      return null;
   }

   @Override
   @SuppressWarnings("unchecked")
   public <A extends ArtifactId> List<A> get(Collection<? extends IAtsWorkItem> workItems, Class<?> clazz) throws OseeCoreException {
      Assert.isNotNull(workItems, "Work Items can not be null");
      List<A> arts = new ArrayList<A>();
      for (IAtsWorkItem workItem : workItems) {
         ArtifactReadable artifact = get(workItem, clazz);
         if (artifact != null) {
            arts.add((A) artifact);
         }
      }
      return arts;
   }

   @Override
   public IArtifactType getArtifactType(IAtsWorkItem workItem) {
      Assert.isNotNull(workItem, "Work Item can not be null");
      return ((ArtifactReadable) workItem.getStoreObject()).getArtifactType();
   }

   @Override
   public boolean isOfType(ArtifactId artifact, IArtifactType artifactType) {
      Assert.isNotNull(artifact, "Artifact can not be null");
      Assert.isNotNull(artifactType, "Artifact Type can not be null");
      return ((ArtifactReadable) services.getArtifact(artifact)).isOfType(artifactType);
   }

   @Override
   public int getTransactionNumber(ArtifactId artifact) {
      Assert.isNotNull(artifact, "Artifact can not be null");
      return ((ArtifactReadable) services.getArtifact(artifact)).getTransaction();
   }

   @Override
   public boolean isOfType(IAtsObject atsObject, IArtifactType artifactType) {
      Assert.isNotNull(atsObject, "ATS Object can not be null");
      Assert.isNotNull(artifactType, "Artifact Type can not be null");
      return isOfType(atsObject.getStoreObject(), artifactType);
   }

}

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