/*
    * Copyright 2005-2008 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.rule;
  
  import java.util.ArrayList;
  import java.util.List;
  
  import org.kuali.rice.kew.exception.WorkflowException;
  import org.kuali.rice.kew.exception.WorkflowRuntimeException;
  import org.kuali.rice.kew.routeheader.DocumentRouteHeaderValue;
  import org.kuali.rice.kew.service.KEWServiceLocator;
  import org.kuali.rice.kew.util.Utilities;
  
  
  /**
   * RolePoker implementation which handles initiating refresh of the "poked" role.
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public class RolePokerProcessor implements RolePoker {
  
  	public void reResolveRole(Long documentId, String roleName, String qualifiedRoleNameLabel) {
  		KEWServiceLocator.getRouteHeaderService().lockRouteHeader(documentId, true);
  		if (Utilities.isEmpty(roleName)) {
  			throw new IllegalArgumentException("Can't poke a role without a role name!");
  		}
  		DocumentRouteHeaderValue document = KEWServiceLocator.getRouteHeaderService().getRouteHeader(documentId);
  		try {
  		if (qualifiedRoleNameLabel == null) {
  			KEWServiceLocator.getRoleService().reResolveRole(document, roleName);
  		} else {
  			KEWServiceLocator.getRoleService().reResolveQualifiedRole(document, roleName, qualifiedRoleNameLabel);
  		}
  		} catch (WorkflowException e) {
  			throw new WorkflowRuntimeException(e);
  		}
  	}
  
  	public void reResolveRole(Long documentId, String roleName) {
  		reResolveRole(documentId, roleName, null);
  	}
  		
  	private String[] parseParameters(String parameters) {
  		List strings = new ArrayList();
  		boolean isEscaped = false;
  		StringBuffer buffer = new StringBuffer();
  		for (int index = 0; index < parameters.length(); index++) {
  			char character = parameters.charAt(index);
  			if (isEscaped) {
  				isEscaped = false;
  				buffer.append(character);
  			} else {
  				if (character == '\\') {
  					isEscaped = true;
  				} else if (character == ',') {
  					strings.add(buffer.toString());
  					buffer = new StringBuffer();
  				} else {
  					buffer.append(character);
  				}
  			}
  		}
  		return (String[])strings.toArray(new String[0]);
  	}
  
  
  
  }