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/*-
 * ============LICENSE_START=======================================================
 * ONAP - SO
 * ================================================================================
 # Copyright (c) 2020, CMCC Technologies Co., Ltd.
 #
 # 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.
 * ============LICENSE_END=========================================================
 */

package org.onap.so.adapters.nssmf.interceptor;

import org.apache.logging.log4j.ThreadContext;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.UUID;

@Component
public class LoggerInterceptor implements HandlerInterceptor {

    private final static String TRACE_ID = "traceId";

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
            throws Exception {
        String traceId = UUID.randomUUID().toString().replaceAll("-", "").toUpperCase();
        ThreadContext.put(TRACE_ID, traceId);
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
            ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
            throws Exception {
        ThreadContext.remove(TRACE_ID);
    }
}