/*-
 * ============LICENSE_START=======================================================
 * ECOMP-Logging
 * ================================================================================
 * Copyright (C) 2017 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.openecomp.policy.common.logging;

import javax.servlet.http.HttpServletRequest;

public class ECOMPLoggingUtils {

	public static ECOMPLoggingContext getLoggingContextForRequest(HttpServletRequest request,
			ECOMPLoggingContext baseContext)
	{
		ECOMPLoggingContext requestContext = new ECOMPLoggingContext(baseContext);
		if (request.getLocalAddr() != null) { // may be null in junit tests
			requestContext.setServerIPAddress(request.getLocalAddr());
		}
		// get client IP address as leftmost address in X-Forwarded-For header if present,
		// otherwise from remote address in the request
		String forwarded = request.getHeader("X-Forwarded-For");
		if (forwarded != null && forwarded.trim().length() > 0) {
			forwarded = forwarded.trim().split(",")[0];
			requestContext.setClientIPAddress(forwarded);
		} else if (request.getRemoteAddr() != null) { // may be null in junit tests
			requestContext.setClientIPAddress(request.getRemoteAddr());
		}
		// RequestID 
		String requestId = request.getHeader("X-ECOMP-RequestID");
		if (requestId != null && requestId.trim().length() > 0) {
			requestContext.setRequestID(requestId);
		}
		return requestContext;
	}


}