/**
 * Copyright 2012 Comcast Corporation
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.comcast.cmb.common.model;

import java.util.UUID;
/**
 * @author michael
 */
public class ReceiptModule {

    private static final ThreadLocal<String> receiptId =
        new ThreadLocal<String> () {
            protected String initialValue() {
                return UUID.randomUUID().toString();
            }
        };

    /**
     * Get the receipt ID.  Receipt ID is a thread local object.  It will be unique per thread
     * @return receiptId
     */
    public static String getReceiptId() {
        return receiptId.get();
    }

    /**
     * Initialize the receipt ID.  This function should be called for every new request.
     */
    public static void init() {
        receiptId.remove();
    }
}