taskhandler_1.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.task.model.TaskModel;
import com.sun.j2ee.workflow.task.dao.TaskDAOImpl;

import com.sun.j2ee.workflow.task.exceptions.TaskDAOSysException;
import com.sun.j2ee.workflow.task.exceptions.TaskDAOAppException;
import com.sun.j2ee.workflow.task.exceptions.TaskDAODBUpdateException;
import com.sun.j2ee.workflow.task.exceptions.TaskDAOFinderException;
import com.sun.j2ee.workflow.task.exceptions.TaskDAODupKeyException;
/**
 * TaskHandler
 *
*/
public class TaskHandler extends ActionHandlerSupport {

        private static final int CREATE_TASK = 1;
        private static final int UPDATE_TASK = 2;
        private static final int REMOVE_TASK = 3;
        private static final int UNKNOWN = 0;
    public void perform(HashMap taskevent) throws WorkflowActionException{
        Debug.println("TaskHandler: perform()");
        //session of the request are passed as partof the event
        HttpSession session = (HttpSession)taskevent.get("session");
        //Locale currentLocale = JSPUtil.getLocale(session);
        switch (this.mapactiontype((String)taskevent.get("actiontype"))) {
        case CREATE_TASK: {
            Debug.println("TaskHandler: CREATE_TASK event");
            try {
               TaskDAOImpl taskDa = new TaskDAOImpl(); 
               taskDa.create(getTaskModel(taskevent));
            } catch (TaskDAOSysException pse) {
                throw new WorkflowActionException(" Error Create Task " + pse);
            } catch (TaskDAODupKeyException pde) {
                throw new WorkflowActionException(" Error Create Task " + pde);
            } catch (TaskDAODBUpdateException pue) {
                throw new WorkflowActionException(" Error Create Task" + pue);    
            } catch (TaskDAOAppException pue) {
                throw new WorkflowActionException(" Error Create Task" + pue);    
            }

        } break;
          case UPDATE_TASK: {
            Debug.println("TaskHandler: UPDATE_TASK event");
            try {
               TaskDAOImpl taskDa = new TaskDAOImpl();
               TaskModel taskMd = getTaskModel(taskevent);
               taskDa.store(taskMd);
               Debug.println("TaskHandler: updating task " + (String)taskevent.get("task_name"));
               this.context.setAttribute("taskupdate", taskMd.getTask_ID());
            } catch (TaskDAOSysException pse) {
                throw new WorkflowActionException(" Error Update Task " + pse);
            } catch (TaskDAODupKeyException pde) {
                throw new WorkflowActionException(" Error Update Task " + pde);
            } catch (TaskDAODBUpdateException pue) {
                throw new WorkflowActionException(" Error Update Task" + pue);
            } catch (TaskDAOAppException pue) {
                throw new WorkflowActionException(" Error Create Task" + pue);    
            }

        } break;
        case REMOVE_TASK: {
            Debug.println("TaskHandler: REMOVE_TASK event");
            try {
               TaskDAOImpl taskDa = new TaskDAOImpl();  
               taskDa.remove((String)taskevent.get("task_ID"));
               Debug.println("TaskHandler: removing task " + (String)taskevent.get("task_ID"));
               //should add methods to remove the rows in other table
            } catch (TaskDAOSysException pse) {
                throw new WorkflowActionException(" Error Remove Task " + pse);
            } catch (TaskDAODBUpdateException pue) {
                throw new WorkflowActionException(" Error Remove Task" + pue);
            }               
        } break;

        default:
            Debug.print("Error: not implemented yet");
            break;
        }
    }
    
  private int mapactiontype(String actiontype) {
      Debug.println("inside mapactiontype: "+ actiontype); 
        if (actiontype.equals("CREATE_TASK")) 
        return this.CREATE_TASK;
        else if (actiontype.equals("UPDATE_TASK")) 
        return this.UPDATE_TASK;
        else if (actiontype.equals("REMOVE_TASK")) 
        return this.REMOVE_TASK;
        else
        return this.UNKNOWN;               
        }
        
        
 private TaskModel getTaskModel(HashMap te){ 
     Debug.println("geting date");
     Date plan_start_date = Date.valueOf((String)te.get("plan_start_year")+"-"+
                                         (String)te.get("plan_start_month")+"-"+  
                                         (String)te.get("plan_start_day"));
     Debug.println("geting date");
     Date plan_end_date = Date.valueOf((String)te.get("plan_end_year")+"-"+
                                         (String)te.get("plan_end_month")+"-"+  
                                         (String)te.get("plan_end_day"));                       
     
     Debug.println("geting date");
                                      
     Date act_start_date = Date.valueOf((String)te.get("act_start_year")+"-"+
                                         (String)te.get("act_start_month")+"-"+  
                                         (String)te.get("act_start_day"));                       
     Debug.println("geting date:"+ act_start_date.toString());  

     Date act_end_date = Date.valueOf((String)te.get("act_end_year")+"-"+
                                         (String)te.get("act_end_month")+"-"+  
                                         (String)te.get("act_end_day"));                               

     TaskModel pjm = new TaskModel((String)te.get("task_ID"), 
                                   (String)te.get("task_name"),
                                   plan_start_date,
                                   plan_end_date,
                                   act_start_date,
                                   act_end_date,
                                   (String)te.get("status"),
                                   (String)te.get("predecessor"),
                                   (String)te.get("project"),
                                   (String)te.get("task_desc"),
                                   (String)te.get("type"),                                   
                                   (String)te.get("comment")                                   
                                         );
     return pjm;
 } 
}