userusebean.java

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/*
 */
package com.sun.j2ee.workflow.control.web;

import java.util.Collection;
import javax.naming.NamingException;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingEnumeration;
import javax.naming.directory.InitialDirContext;

import com.sun.j2ee.workflow.util.JNDINames;
import com.sun.j2ee.workflow.user.model.UserModel;
import com.sun.j2ee.workflow.user.dao.UserDAOImpl;
import com.sun.j2ee.workflow.user.exceptions.*;
import com.sun.j2ee.workflow.control.exceptions.GeneralFailureException;
import com.sun.j2ee.workflow.control.exceptions.WorkflowAppException;

import com.sun.j2ee.workflow.util.Debug;

/** This class is the web-tier representation of the user.
 * @author Jian (James) Cai
 */
public class UserUseBean implements java.io.Serializable {

    private UserModel user = null;
    private boolean cached = false;
    public UserUseBean() {}
    
    public UserModel getUser(String user_ID) {
      if (cached==false)
       {
          try {
           UserDAOImpl userDa = new UserDAOImpl();
           String user_id = userDa.findByPrimaryKey(user_ID);
           Debug.println("found user id: "+user_id);
           user = userDa.load(user_id);
           //account = cust.getDetails();
            } catch (UserDAOFinderException fe) {
                throw new GeneralFailureException("Unable to find the password details for user " );
            } catch (UserDAOSysException se) {
            Debug.println("found UserDAOSysException se" + se.toString());
            }
            return user;
        }   
        else
        {
            user = loadFromCache(user_ID);
            return user;
        }
}

    public Collection getUserByRole(String role) {
        Collection users = null;  
        try {
           UserDAOImpl userDa = new UserDAOImpl();
           users = getUserByField("role", role);
           Debug.println("found user with Role: "+ role);
            } catch (UserDAOSysException se) {
            Debug.println("found UserDAOSysException se" + se.toString());
            }
            return users;
        }   

    public Collection getUserList() {
        Collection users = null;  
        try {
           UserDAOImpl userDa = new UserDAOImpl();
           users = userDa.findAll();
            } catch (UserDAOFinderException fe) {
                throw new GeneralFailureException("Unable to find all user by name ");
            } catch (UserDAOSysException se) {
            Debug.println("found UserDAOSysException se" + se.toString());
            }
            return users;
        } 

  public Collection getUserByField(String field, String key) {
        Collection users = null;  
        try {
           UserDAOImpl userDa = new UserDAOImpl();
           users = userDa.findByField(field, key);
            } catch (UserDAOFinderException fe) {
                throw new GeneralFailureException("Unable to find all user by name ");
            } catch (UserDAOSysException se) {
            Debug.println("found UserDAOSysException se" + se.toString());
            }
            return users;
        }         
  //method to retrieve Global JNDI information
  public String getGlobalUserInfor() {
	String tmp;
        String maxUser = "0";
        String tempstr;
        Boolean booleanUser;
        Byte byteUser;
        Character characterUser;
        Double doubleUser;
        Float floatUser;
        Integer intergerUser;
        Long longUser;
        Short shortUser;
        String stringUser;
        
	StringBuffer gui = new StringBuffer();
        
        Context ctx = null;
        
        try {
            ctx = new InitialContext();
        } catch (NamingException e) {
            Debug.println("Can not create a initial context : " + e);
            return null;
        }
        
        try {

	    Object value1 = ctx.lookup("java:/comp/env/booleanUser"); //boolean
	    Object value2 = ctx.lookup("java:/comp/env/byteUser"); //byte
	   // Object value3 = ctx.lookup("java:/comp/env/characterUser"); //character
	    Object value4 = ctx.lookup("java:/comp/env/doubleUser"); //double
	    Object value5 = ctx.lookup("java:/comp/env/floatUser"); //float           
            Object value6 = ctx.lookup("java:/comp/env/integerUser"); //integer 
            Object value7 = ctx.lookup("java:/comp/env/longUser"); //long           
            Object value8 = ctx.lookup("java:/comp/env/shortUser"); //short           
            Object value9 = ctx.lookup("java:/comp/env/stringUser"); //string           
            Debug.println(" Individual Lookup: ");
         
	    tempstr = ((Boolean)value1).toString();
            gui.append("Boolean: "+ tempstr +"/n");
	    tempstr = ((Byte)value2).toString();
            gui.append("Byte: "+ tempstr+"/n");
	    //tempstr = ((Character)value3).toString();
            //gui.append("Character: "+ tempstr+"/n");            
	    tempstr = ((Double)value4).toString();
            gui.append("Double: "+ tempstr+"/n");
            tempstr = ((Float)value5).toString();
            gui.append("Float: "+ tempstr+"/n");            
	    tempstr = ((Integer)value6).toString();
            gui.append("Integer: "+ tempstr+"/n");            
	    tempstr = ((Long)value7).toString();
            gui.append("Long: "+ tempstr +"/n");
            tempstr = ((Short)value8).toString();
            gui.append("Short: "+ tempstr +"/n");
            tempstr = ((String)value9).toString();
            gui.append("String: "+ tempstr +"/n");            

        } catch (NamingException e) {
            Debug.println("JNDI lookup error : " + e);
        }
        
        try {
            Context envCtx = (Context) ctx.lookup("java:/comp/env/");
            Debug.println("ctx.list() on /comp/env Context : ");
            NamingEnumeration enum = ctx.list("java:/comp/env/");
            while (enum.hasMoreElements()) {
                Debug.print("Binding : ");
                Debug.println(enum.nextElement().toString());
            }
            Debug.println("ctx.listBindings() on /comp/env Context : ");
            enum = ctx.listBindings("java:/comp/env/");
            while (enum.hasMoreElements()) {
                Debug.print("Binding : ");
		tmp = enum.nextElement().toString();
		int subindex = tmp.indexOf("@");
		if (subindex > 1)
		    {
			tmp = tmp.substring(0, subindex);
		    }
			Debug.println(tmp);
            }
        } catch (NamingException e) {
            Debug.println("JNDI lookup error : " + e);
        }
        
        return gui.toString();
      
  } 
        
        
    private UserModel loadFromCache(String user_ID)
    {
        UserModel user = null; //need to be implemented
        return user;
    }
}