assignmenthandler.java

J2EE & Tomcat books published by hope

/*
 */

package com.sun.j2ee.workflow.control.actions;

import java.util.HashMap;
import java.util.ArrayList;
import java.util.Locale;
import java.util.Enumeration;
import java.util.Calendar;
import java.sql.Date;
import javax.servlet.http.HttpSession;

import com.sun.j2ee.workflow.util.WebKeys;
import com.sun.j2ee.workflow.util.JSPUtil;
import javax.servlet.http.HttpServletRequest;
import com.sun.j2ee.workflow.util.Debug;
import com.sun.j2ee.workflow.control.exceptions.WorkflowActionException;
import com.sun.j2ee.workflow.control.exceptions.WorkflowAppException;
import com.sun.j2ee.workflow.control.exceptions.SigninFailedException;
import com.sun.j2ee.workflow.assignment.model.AssignmentModel;
import com.sun.j2ee.workflow.assignment.dao.AssignmentDAOImpl;

import com.sun.j2ee.workflow.assignment.exceptions.AssignmentDAOSysException;
import com.sun.j2ee.workflow.assignment.exceptions.AssignmentDAOAppException;
import com.sun.j2ee.workflow.assignment.exceptions.AssignmentDAODBUpdateException;
import com.sun.j2ee.workflow.assignment.exceptions.AssignmentDAOFinderException;
import com.sun.j2ee.workflow.assignment.exceptions.AssignmentDAODupKeyException;
/** AssignmentHandler
 * @author Jian (James) Cai
 */
public class AssignmentHandler extends ActionHandlerSupport {

        private static final int CREATE_ASSIGNMENT = 1;
        private static final int UPDATE_ASSIGNMENT = 2;
        private static final int REMOVE_ASSIGNMENT = 3;
        private static final int UNKNOWN = 0;
        
    public void perform(HashMap assignmentevent) throws WorkflowActionException{
        Debug.println("AssignmentHandler: perform()");
        //session of the request are passed as partof the event
        HttpSession session = (HttpSession)assignmentevent.get("session");
        //Locale currentLocale = JSPUtil.getLocale(session);
        switch (this.mapactiontype((String)assignmentevent.get("actiontype"))) {
        case CREATE_ASSIGNMENT: {
            Debug.println("AssignmentHandler: CREATE_ASSIGNMENT event");
            try {
               AssignmentDAOImpl assignmentDa = new AssignmentDAOImpl(); 
               assignmentDa.create(getAssignmentModel(assignmentevent));
            } catch (AssignmentDAOSysException pse) {
                throw new WorkflowActionException(" Error Create Assignment " + pse);
            } catch (AssignmentDAODupKeyException pde) {
                throw new WorkflowActionException(" Error Create Assignment " + pde);
            } catch (AssignmentDAODBUpdateException pue) {
                throw new WorkflowActionException(" Error Create Assignment" + pue);    
            } catch (AssignmentDAOAppException pue) {
                throw new WorkflowActionException(" Error Create Assignment" + pue);    
            }

        } break;
          case UPDATE_ASSIGNMENT: {
            Debug.println("AssignmentHandler: UPDATE_ASSIGNMENT event");
            try {
               AssignmentDAOImpl assignmentDa = new AssignmentDAOImpl();
               AssignmentModel assignmentMd = getAssignmentModel(assignmentevent);
               assignmentDa.store(assignmentMd);
               Debug.println("AssignmentHandler: updating assignment " + (String)assignmentevent.get("assignment_name"));
               this.context.setAttribute("assignmentupdate", assignmentMd.getAssign_ID());
            } catch (AssignmentDAOSysException pse) {
                throw new WorkflowActionException(" Error Update Assignment " + pse);
            } catch (AssignmentDAODupKeyException pde) {
                throw new WorkflowActionException(" Error Update Assignment " + pde);
            } catch (AssignmentDAODBUpdateException pue) {
                throw new WorkflowActionException(" Error Update Assignment" + pue);
            } catch (AssignmentDAOAppException pue) {
                throw new WorkflowActionException(" Error Create Assignment" + pue);    
            }

        } break;
        case REMOVE_ASSIGNMENT: {
            Debug.println("AssignmentHandler: REMOVE_ASSIGNMENT event");
            try {
               AssignmentDAOImpl assignmentDa = new AssignmentDAOImpl();  
               assignmentDa.remove((String)assignmentevent.get("assignment_ID"));
               Debug.println("AssignmentHandler: removing assignment " + (String)assignmentevent.get("assignment_ID"));
               //should add methods to remove the rows in other table
            } catch (AssignmentDAOSysException pse) {
                throw new WorkflowActionException(" Error Remove Assignment " + pse);
            } catch (AssignmentDAODBUpdateException pue) {
                throw new WorkflowActionException(" Error Remove Assignment" + pue);
            }               
        } break;

        default:
            Debug.print("Error: not implemented yet");
            break;
        }
    }
    
  private int mapactiontype(String actiontype) {
      Debug.println("inside mapactiontype: "+ actiontype); 
        if (actiontype.equals("CREATE_ASSIGNMENT")) 
        return this.CREATE_ASSIGNMENT;
        else if (actiontype.equals("UPDATE_ASSIGNMENT")) 
        return this.UPDATE_ASSIGNMENT;
        else if (actiontype.equals("REMOVE_ASSIGNMENT")) 
        return this.REMOVE_ASSIGNMENT;
        else
        return this.UNKNOWN;               
        }
        
        
 private AssignmentModel getAssignmentModel(HashMap te){ 
 
     AssignmentModel pjm = new AssignmentModel((String)te.get("assignment_ID"), 
                                   (String)te.get("assignment_name"),
                                   (String)te.get("task"),
                                   (String)te.get("user"),
                                   (String)te.get("desc"),
                                   (String)te.get("comment")                                   
                                         );
     return pjm;
 } 
}