/**
    * Copyright 2005-2012 The Kuali Foundation
    *
    * Licensed under the Educational Community License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    * http://www.opensource.org/licenses/ecl2.php
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.kuali.rice.kew.impl.document;
  
  import org.apache.commons.lang.StringUtils;
  import org.apache.log4j.Logger;
  import org.kuali.rice.core.api.exception.RiceIllegalArgumentException;
  import org.kuali.rice.kew.api.WorkflowRuntimeException;
  import org.kuali.rice.kew.api.document.DocumentProcessingOptions;
  import org.kuali.rice.kew.api.document.DocumentProcessingQueue;
  import org.kuali.rice.kew.api.document.attribute.DocumentAttributeIndexingQueue;
  import org.kuali.rice.kew.engine.OrchestrationConfig;
  import org.kuali.rice.kew.engine.WorkflowEngine;
  import org.kuali.rice.kew.engine.WorkflowEngineFactory;
  
  import javax.jws.WebParam;
  import java.util.Collections;
  
  /**
   * Reference implementation of the {@code DocumentProcessingQueue}.
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public class DocumentProcessingQueueImpl implements DocumentProcessingQueue {
  
      private static final Logger LOG = Logger.getLogger(DocumentProcessingQueueImpl.class);
  
      private WorkflowEngineFactory workflowEngineFactory;
      private DocumentAttributeIndexingQueue documentAttributeIndexingQueue;
  
      @Override
      public void process(@WebParam(name = "documentId") String documentId) {
          processWithOptions(documentId, null);
      }
  
      @Override
      public void processWithOptions(@WebParam(name = "documentId") String documentId,
              @WebParam(name = "options") DocumentProcessingOptions options) {
          if (StringUtils.isBlank(documentId)) {
              throw new RiceIllegalArgumentException("documentId was a null or blank value");
          }
          if (options == null) {
              options = DocumentProcessingOptions.createDefault();
          }
          OrchestrationConfig config = new OrchestrationConfig(OrchestrationConfig.EngineCapability.STANDARD,
                  Collections.<String>emptySet(), null, options.isSendNotifications(), options.isRunPostProcessor());
          WorkflowEngine engine = getWorkflowEngineFactory().newEngine(config);
          try {
  			engine.process(documentId, null);
  		} catch (Exception e) {
  			LOG.error("Failed to process document through the workflow engine", e);
              if (e instanceof RuntimeException) {
                  throw (RuntimeException)e;
              }
  			throw new WorkflowRuntimeException(e);
  		}
          if (options.isIndexSearchAttributes()) {
              getDocumentAttributeIndexingQueue().indexDocument(documentId);
          }
      }
  
      public WorkflowEngineFactory getWorkflowEngineFactory() {
          return workflowEngineFactory;
      }
  
      public void setWorkflowEngineFactory(WorkflowEngineFactory workflowEngineFactory) {
          this.workflowEngineFactory = workflowEngineFactory;
      }
  
      public DocumentAttributeIndexingQueue getDocumentAttributeIndexingQueue() {
          return documentAttributeIndexingQueue;
      }
  
      public void setDocumentAttributeIndexingQueue(DocumentAttributeIndexingQueue documentAttributeIndexingQueue) {
          this.documentAttributeIndexingQueue = documentAttributeIndexingQueue;
      }
  
  }