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/*-
* ============LICENSE_START=======================================================
* VID
* ================================================================================
* Copyright (C) 2017 - 2019 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.vid.logging;
import java.net.InetAddress;
import java.net.UnknownHostException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.onap.logging.filter.spring.LoggingInterceptor;
import org.onap.logging.ref.slf4j.ONAPLogConstants.MDCs;
import org.slf4j.MDC;
import org.springframework.web.servlet.ModelAndView;
public class VidLoggingInterceptor extends LoggingInterceptor {
static final String INBOUND_INVO_ID = "InboundInvoId";
private static final String canonicalHostName = getCanonicalName();
private static String getCanonicalName() {
try {
return InetAddress.getLocalHost().getCanonicalHostName();
} catch (UnknownHostException e) {
// YOLO
return "";
}
}
@Override
protected void additionalPreHandling(HttpServletRequest request) {
super.additionalPreHandling(request);
storeInboundInvocationId();
}
/*
* store inbound invocationId for later use in restoreInvocationId
*/
private void storeInboundInvocationId() {
MDC.put(INBOUND_INVO_ID, MDC.get(MDCs.INVOCATION_ID));
}
@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
restoreInvocationId();
fixServerFQDN();
super.postHandle(request, response, handler, modelAndView);
}
/*
* fix SERVER_FQDN, because EELFLoggerDelegate::setGlobalLoggingContext put wrong value
*/
private void fixServerFQDN() {
MDC.put(MDCs.SERVER_FQDN, canonicalHostName);
}
/**
* restore invocationId that was overwritten by metrics interceptor
*/
private void restoreInvocationId() {
MDC.put(MDCs.INVOCATION_ID, MDC.get(INBOUND_INVO_ID));
}
}
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