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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 * 
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
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 * 
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 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
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 * Header, with the fields enclosed by brackets [] replaced by your own
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/*
 * UuidUtilPadded.java
 *
 * Created on May 26, 2005, 11:15 AM
 */

package com.sun.enterprise.util.uuid;

/**
 *
 * @author  lwhite
 */
public class UuidUtilPadded extends UuidUtil {
    
    static final int DESIRED_UUID_LENGTH = 40;
    
    //this method can take in the session object
    //and insure better uniqueness guarantees
    //needed length must be greater than not less than
    //expected returned lengths - i.e. at least 40
    public static String generateUuid(Object obj, int inputLength) {
        int desiredLength = 
            DESIRED_UUID_LENGTH >= inputLength ? DESIRED_UUID_LENGTH:inputLength;
        String unpaddedUuid = UuidUtil.generateUuid(obj);
        StringBuffer sb = new StringBuffer(unpaddedUuid);
        int neededPadding = desiredLength - unpaddedUuid.length();
        //int neededPadding = DESIRED_UUID_LENGTH - unpaddedUuid.length();
        if(neededPadding > 0) {
            for(int i=0; i