projecthandler.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 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.DuplicateNameException;
import com.sun.j2ee.workflow.control.exceptions.SigninFailedException;
import com.sun.j2ee.workflow.project.model.ProjectModel;
import com.sun.j2ee.workflow.project.dao.ProjectDAOImpl;

import com.sun.j2ee.workflow.project.exceptions.ProjectDAOSysException;
import com.sun.j2ee.workflow.project.exceptions.ProjectDAOAppException;
import com.sun.j2ee.workflow.project.exceptions.ProjectDAODBUpdateException;
import com.sun.j2ee.workflow.project.exceptions.ProjectDAOFinderException;
import com.sun.j2ee.workflow.project.exceptions.ProjectDAODupKeyException;
/**
 * ProjectHandler
 *
*/
public class ProjectHandler extends ActionHandlerSupport {

        private static final int CREATE_PROJECT = 1;
        private static final int UPDATE_PROJECT = 2;
        private static final int REMOVE_PROJECT = 3;
        private static final int UNKNOWN = 0;
    public void perform(HashMap projectevent) throws WorkflowActionException, DuplicateNameException{
        Debug.println("ProjectHandler: perform()");
        //session of the request are passed as partof the event
        HttpSession session = (HttpSession)projectevent.get("session");
        //Locale currentLocale = JSPUtil.getLocale(session);
        switch (this.mapactiontype((String)projectevent.get("actiontype"))) {
        case CREATE_PROJECT: {
            Debug.println("ProjectHandler: CREATE_PROJECT event");
            try {
               ProjectDAOImpl projectDa = new ProjectDAOImpl(); 
               projectDa.create(getProjectModel(projectevent));
            } catch (ProjectDAOSysException pse) {
                throw new WorkflowActionException(" Error Create Project " + pse);
            } catch (ProjectDAODupKeyException pde) {
                throw new DuplicateNameException(" Error Create Project, Porject with same name exists" + pde);
            } catch (ProjectDAODBUpdateException pue) {
                throw new WorkflowActionException(" Error Create Project" + pue);    
            } catch (ProjectDAOAppException pue) {
                throw new WorkflowActionException(" Error Create Project" + pue);    
            }

        } break;
          case UPDATE_PROJECT: {
            Debug.println("ProjectHandler: UPDATE_PROJECT event");
            try {
               ProjectDAOImpl projectDa = new ProjectDAOImpl();  
               projectDa.store(getProjectModel(projectevent));
               Debug.println("ProjectHandler: updating project " + (String)projectevent.get("project_name"));
            } catch (ProjectDAOSysException pse) {
                throw new WorkflowActionException(" Error Update Project " + pse);
            } catch (ProjectDAODupKeyException pde) {
                throw new WorkflowActionException(" Error Update Project " + pde);
            } catch (ProjectDAODBUpdateException pue) {
                throw new WorkflowActionException(" Error Update Project" + pue);
            } catch (ProjectDAOAppException pue) {
                throw new WorkflowActionException(" Error Create Project" + pue);    
            }

        } break;
        case REMOVE_PROJECT: {
            Debug.println("ProjectHandler: REMOVE_PROJECT event");
            try {
               ProjectDAOImpl projectDa = new ProjectDAOImpl();  
               projectDa.remove((String)projectevent.get("proj_ID"));
               Debug.println("ProjectHandler: removing project " + (String)projectevent.get("project_ID"));
               //should add methods to remove the rows in other table
            } catch (ProjectDAOSysException pse) {
                throw new WorkflowActionException(" Error Remove Project " + pse);
            } catch (ProjectDAODBUpdateException pue) {
                throw new WorkflowActionException(" Error Remove Project" + pue);
            }               
        } break;

        default:
            Debug.print("Error: not implemented yet");
            break;
        }
    }
    
  private int mapactiontype(String actiontype) {
      Debug.println("inside mapactiontype: "+ actiontype); 
        if (actiontype.equals("CREATE_PROJECT")) 
        return this.CREATE_PROJECT;
        else if (actiontype.equals("UPDATE_PROJECT")) 
        return this.UPDATE_PROJECT;
        else if (actiontype.equals("REMOVE_PROJECT")) 
        return this.REMOVE_PROJECT;
        else
        return this.UNKNOWN;               
        }
        
 private ProjectModel getProjectModel(HashMap pe){ 
     ProjectModel pjm = new ProjectModel((String)pe.get("proj_ID"), 
                                         (String)pe.get("proj_name"), 
                                         (String)pe.get("group"), 
                                         (String)pe.get("lead"), 
                                         (String)pe.get("desc"));
     return pjm;
 } 
}