/**
    * 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.actionlist;
  
  import org.kuali.rice.kew.service.KEWServiceLocator;
  import org.kuali.rice.kim.api.identity.Person;
  import org.kuali.rice.kim.api.identity.principal.Principal;
  import org.kuali.rice.kim.api.services.KimApiServiceLocator;
  
  import javax.servlet.ServletException;
  import javax.servlet.http.HttpServlet;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  import java.io.IOException;
  import java.io.PrintWriter;
  
  
  
  public class ActionListCountServlet extends HttpServlet {
  
  	private static final long serialVersionUID = 260649920715567145L;
  
  	private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(ActionListCountServlet.class);
  
  	@Override
  	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  		response.setContentType("text/plain");
  	    PrintWriter out = response.getWriter();
  	    int count = getCount(request);
  	    out.println(Integer.toString(count));
  	    out.close();
  	}
  
  	private int getCount(HttpServletRequest request) {
  		try {
  			String id = request.getParameter("id");
  			if (id == null || id.equals("")) {
  				return 0;
  			}
  			String idType = request.getParameter("idType");
  			if (idType == null || idType.equals("")) {
  				idType = "a";
  			}
  			String principalId = null;
  			if ("emplId".equalsIgnoreCase(idType) || "e".equalsIgnoreCase(idType)) {
  				Person person = KimApiServiceLocator.getPersonService().getPersonByEmployeeId(id);
  				if (person != null) {
  					principalId = person.getPrincipalId();
  				}
  			} else if ("workflowId".equalsIgnoreCase(idType) || "w".equalsIgnoreCase(idType)) {
  				principalId = id;
  		    } else if ("authenticationId".equalsIgnoreCase(idType) || "a".equalsIgnoreCase(idType)) {
  		    	Principal principal = KimApiServiceLocator.getIdentityService().getPrincipalByPrincipalName(id);
  		    	if (principal != null) {
  		    		principalId = principal.getPrincipalId();
  		    	}
  		    }
  			if (principalId == null) {
  				return 0;
  			}
  			return KEWServiceLocator.getActionListService().getCount(principalId);
  		} catch (Throwable t) {
  			LOG.error("Fatal error when querying for Action List Count", t);
  			return 0;
  		}
  	}
  
  
  
  }