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/*-
* ============LICENSE_START=======================================================
* ONAP-Logging
* ================================================================================
* Copyright (C) 2017-2020 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.policy.common.logging;
import javax.servlet.http.HttpServletRequest;
public class OnapLoggingUtils {
private OnapLoggingUtils() {
// Private constructor to prevent subclassing
}
/**
* Get the ONAPLoggingContext for a request.
*
* @param request the request
* @param baseContext the context to supply to the ONAPLoggingContext
* @return the ONAPLoggingContext
*/
public static OnapLoggingContext getLoggingContextForRequest(HttpServletRequest request,
OnapLoggingContext baseContext) {
OnapLoggingContext requestContext = new OnapLoggingContext(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
// This needs to be renamed to ONAP when the other components in ONAP
// rename to this.
String requestId = request.getHeader("X-ECOMP-RequestID");
if (requestId != null && requestId.trim().length() > 0) {
requestContext.setRequestId(requestId);
}
return requestContext;
}
/**
* Create message text replace {} place holder with data
* if last argument is throwable/exception, pass it as argument to logger.
* @param format message format can contains text and {}
* @param arguments output arguments
* @return
*/
public static String formatMessage(String format, Object ...arguments) {
if (arguments.length <= 0 || arguments[0] == null) {
return format;
}
int index;
StringBuilder builder = new StringBuilder();
String[] token = format.split("[{][}]");
for (index = 0; index < arguments.length; index++) {
if (index < token.length) {
builder.append(token[index]);
builder.append(arguments[index]);
} else {
break;
}
}
for (int index2 = index; index2 < token.length; index2++) {
builder.append(token[index2]);
}
return builder.toString();
}
/**
* Check object is throwable.
* @param obj to verify
* @return true if object is throwable or false otherwise
*/
public static boolean isThrowable(Object obj) {
return (obj instanceof Throwable);
}
}
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