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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017 AT&T Intellectual Property. All rights reserved.
* Copyright © 2017 Amdocs
* ================================================================================
* 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=========================================================
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
*/
package org.onap.aai.cl.mdc;
import org.slf4j.MDC;
import java.net.InetAddress;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* This class manages the MDC (mapped diagnostic context). Calling the init
* method when a new event is processed will save thread-specific context
* information which will be used when generating logs.
*/
public final class MdcContext {
public static String MDC_REQUEST_ID = "RequestId";
public static String MDC_SERVER_FQDN = "ServerFQDN";
public static String MDC_SERVICE_NAME = "ServiceName";
public static String MDC_PARTNER_NAME = "PartnerName";
public static String MDC_START_TIME = "StartTime";
public static String MDC_REMOTE_HOST = "RemoteHost";
public static String MDC_SERVICE_INSTANCE_ID = "ServiceInstanceId";
public static String MDC_CLIENT_ADDRESS = "ClientAddress";
/**
* Initializes the fields of the Mapped Diagnostic Context.
*
* @param transId - Unique transaction identifier.
* @param serviceName - The name of the service generating the diagnostic.
* @param serviceInstance - Unique identifier of the specific instance
* generating the diagnostic.
* @param partnerName - Name of the entity initiating the transction to
* be logged
* @param clientAddress - IP address of the transaction client.
*/
public static void initialize(String transId,
String serviceName,
String serviceInstance,
String partnerName,
String clientAddress) {
MDC.clear();
MDC.put(MDC_REQUEST_ID, transId);
MDC.put(MDC_SERVICE_NAME, serviceName);
MDC.put(MDC_SERVICE_INSTANCE_ID, serviceInstance);
MDC.put(MDC_PARTNER_NAME, partnerName);
MDC.put(MDC_CLIENT_ADDRESS, clientAddress);
MDC.put(MDC_START_TIME,
new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSXXX").format(new Date()));
try {
MDC.put(MDC_SERVER_FQDN, InetAddress.getLocalHost().getCanonicalHostName());
} catch (Exception e) {
// If, for some reason we are unable to get the canonical host name, we
// just want to leave the field unpopulated. There is not much value
// in doing anything else with an exception at this point.
}
}
}
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