com.telefonica.euro_iaas.sdc.puppetwrapper.aspects.MdcInterceptor.java Source code

Introduction

Here is the source code for com.telefonica.euro_iaas.sdc.puppetwrapper.aspects.MdcInterceptor.java

Source

/**
 * Copyright 2014 Telefonica Investigacin y Desarrollo, S.A.U <br>
 * This file is part of FI-WARE project.
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License.
 * </p>
 * <p>
 * You may obtain a copy of the License at:<br>
 * <br>
 * http://www.apache.org/licenses/LICENSE-2.0
 * </p>
 * <p>
 * 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.
 * </p>
 * <p>
 * See the License for the specific language governing permissions and limitations under the License.
 * </p>
 * <p>
 * For those usages not covered by the Apache version 2.0 License please contact with opensource@tid.es
 * </p>
 */

package com.telefonica.euro_iaas.sdc.puppetwrapper.aspects;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.slf4j.MDC;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;

/**
 * Class MdcInterceptor.
 * 
 * @author Albert Sinfreu Alay
 */
public class MdcInterceptor extends HandlerInterceptorAdapter {

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.springframework.web.servlet.handler.HandlerInterceptorAdapter#preHandle
     * (javax.servlet.http.HttpServletRequest,
     * javax.servlet.http.HttpServletResponse, java.lang.Object)
     */
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
            throws Exception {

        String txId = request.getHeader("txId");
        if (txId != null) {
            MDC.put("txId", txId);
        } else {
            MDC.put("txId", ((HttpServletRequest) request).getSession().getId());
        }

        return true;
    }

}