/**

  * Copyright 2005-2011 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.action;

 import java.util.ArrayList;

 import java.util.List;

 import org.apache.commons.lang.StringUtils;

 import org.apache.log4j.Logger;

 import org.kuali.rice.core.api.exception.RiceIllegalArgumentException;

 import org.kuali.rice.core.api.reflect.DataDefinition;

 import org.kuali.rice.kew.actions.ActionTakenEvent;

 import org.kuali.rice.kew.api.WorkflowRuntimeException;

 import org.kuali.rice.kew.api.action.ActionInvocation;

 import org.kuali.rice.kew.api.action.ActionInvocationQueue;

 import org.kuali.rice.kew.api.exception.InvalidActionTakenException;

 import org.kuali.rice.kew.api.exception.ResourceUnavailableException;

 import org.kuali.rice.kew.routeheader.DocumentRouteHeaderValue;

 import org.kuali.rice.kew.service.KEWServiceLocator;

 import org.kuali.rice.kim.api.identity.principal.Principal;

 /**

  * Reference implementation of the ActionInvocationQueue.

  *

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 public class ActionInvocationQueueImpl implements ActionInvocationQueue {

     private static final Logger LOG = Logger.getLogger(ActionInvocationQueueImpl.class);

     @Override

     public void invokeAction(String principalId, String documentId, ActionInvocation invocation) {

         if (StringUtils.isBlank(principalId)) {

             throw new RiceIllegalArgumentException("principalId is null or blank");

         }

         if (StringUtils.isBlank(documentId)) {

             throw new RiceIllegalArgumentException("documentId is null");

         }

         if (invocation == null) {

             throw new RiceIllegalArgumentException("invocation is null");

         }

         KEWServiceLocator.getRouteHeaderService().lockRouteHeader(documentId, true);

         DocumentRouteHeaderValue document = KEWServiceLocator.getRouteHeaderService().getRouteHeader(documentId);

         Principal principal = KEWServiceLocator.getIdentityHelperService().getPrincipal(principalId);

         List<DataDefinition> parameters = new ArrayList<DataDefinition>();

         parameters.add(new DataDefinition(document));

         parameters.add(new DataDefinition(principal));

         parameters.add(new DataDefinition(""));

         try {

             final ActionTakenEvent action = KEWServiceLocator.getActionRegistry().createAction(invocation.getAction().getCode(), parameters);

             if (!document.isValidActionToTake(invocation.getAction().getCode())) {

                 LOG.warn("Action "

                         + invocation.getAction()

                         + " is not a valid action to take against document "

                         + document.getDocumentId()

                         + " by principal with name '"

                         + principal.getPrincipalName()

                         + "'");

                 return;

             } else if (!KEWServiceLocator.getActionRegistry().getValidActions(principal, document).getActionTakenCodes()

                     .contains(action.getActionTakenCode())) {

                 LOG.warn("Action "

                         + action.getActionTakenCode()

                         + " is not valid for document "

                         + document.getDocumentId()

                         + " by principal with name '"

                         + principal.getPrincipalName()

                         + "'");

                 return;

             }

             action.performAction();

         } catch (ResourceUnavailableException e) {

             throw new WorkflowRuntimeException(e);

         } catch (InvalidActionTakenException e) {

             throw new WorkflowRuntimeException(e);

         }

     }

 }