package com.oreilly.jent.ejb.containerManaged;

/**
 * In general, you may use the code in this book in your programs and 
 * documentation. You do not need to contact us for permission unless 
 * you're reproducing a significant portion of the code. For example, 
 * writing a program that uses several chunks of code from this book does 
 * not require permission. Selling or distributing a CD-ROM of examples 
 * from O'Reilly books does require permission. Answering a question by 
 * citing this book and quoting example code does not require permission. 
 * Incorporating a significant amount of example code from this book into 
 * your product's documentation does require permission.
 * 
 * We appreciate, but do not require, attribution. An attribution usually 
 * includes the title, author, publisher, and ISBN. For example: 
 * 
 *   "Java Enterprise in a Nutshell, Third Edition, 
 *    by Jim Farley and William Crawford 
 *    with Prakash Malani, John G. Norman, and Justin Gehtland. 
 *    Copyright 2006 O'Reilly Media, Inc., 0-596-10142-2."
 *  
 *  If you feel your use of code examples falls outside fair use or the 
 *  permission given above, feel free to contact us at 
 *  permissions@oreilly.com.
 */

import java.util.Collection;
import java.util.Iterator;

import javax.naming.Context;
import javax.naming.InitialContext;

import com.oreilly.jent.ejb.NoSuchPersonException;
import com.oreilly.jent.ejb.Profile;

public class ProfileClient {
    public static void main(String[] args) {
        String name = null;
        if (args.length > 0) {
            name = args[0];
        }
        
        try {
            // Get a JNDI context from our EJB server, using the 
            // properties in jndi.properties 
            Context context = new InitialContext();
            
            // Create a profile server
            ProfileHome pHome =
                (ProfileHome)context.lookup("ejb/CMPProfile");
            
            // If a name is specified, look for that person's profile
            if (name != null) {
                // Ask the server for the person's profile
                // First, see if this person already has a profile
                System.out.println("Looking for profile for " + name);
                Profile profile = null;
                try {
                    profile = pHome.findByPrimaryKey(name);
                }
                catch (Exception e) {
                    System.out.println("Exception while looking up profile.");
                }
                
                if (profile == null) {
                    System.out.println("Creating profile for " + name);
                    profile = pHome.create(name);
                    // Set some entries in the profile
                    if (args.length < 2 || !args[1].equals("empty")) {
                        System.out.println("Setting profile entries for " + name);
                        profile.setEntry("favoriteColor", "blue");
                        profile.setEntry("language", "German");
                    }
                    else {
                        System.out.println("Empty profile created for " + name);
                    }
                }
                
                // Get the entries from the profile
                System.out.println("Getting profile entries for " + name);
                System.out.println("\tFavorite color: " +
                                   profile.getEntry("favoriteColor"));
                System.out.println("\tLanguage: " + profile.getEntry("language"));
            }
            // If no name given, get all emtpy profiles and print their names
            else {
                Collection eProfs = pHome.findEmptyProfiles();
                System.out.println("Empty profiles:");
                Iterator iter = eProfs.iterator();
                while (iter.hasNext()) {
                    Profile p = (Profile)iter.next();
                    System.out.println("\t" + p.getName());
                }
            }
        }
        catch (NoSuchPersonException nspe) {
            System.out.println("Invalid person: " + name);
        } 
        catch (Exception e) {
            System.out.println("Error while creating/using profile.");
            e.printStackTrace();
        }
    }
}