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/*
* Copyright © 2016-2018 European Support Limited
*
* 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.
*/
package org.openecomp.sdc.logging.servlet;
import java.util.Objects;
import javax.servlet.http.HttpServletRequest;
import org.openecomp.sdc.logging.api.AuditData;
import org.openecomp.sdc.logging.api.Logger;
import org.openecomp.sdc.logging.api.LoggerFactory;
import static org.onap.logging.ref.slf4j.ONAPLogConstants.ResponseStatus.COMPLETE;
/**
* Tracks and logs audit information when a request is being processed. An instance of this class cannot be reused, and
* the pre- and post-request methods must be called only once.
*
* @author evitaliy
* @since 31 Jul 2018
*/
public class AuditTracker implements Tracker {
private final Logger logger;
private volatile long started;
private volatile String clientIpAddress;
/**
* Allows passing a class that will be used to log audit.
*
* @param resourceType audit will be logged through the logger of this class
*/
public AuditTracker(Class<?> resourceType) {
this.logger = LoggerFactory.getLogger(resourceType);
}
/**
* Allows passing a logger that will be used to log audit.
*
* @param logger audit will be logged through this logger, cannot be null
*/
public AuditTracker(Logger logger) {
this.logger = Objects.requireNonNull(logger);
}
@Override
public synchronized void preRequest(HttpServletRequest request) {
if (this.started > 0) {
throw new IllegalStateException("Pre-request has been already called");
}
this.started = System.currentTimeMillis();
this.clientIpAddress = request.getRemoteAddr();
AuditData auditData = AuditData.builder().startTime(started).endTime(started).statusCode(COMPLETE)
.clientIpAddress(clientIpAddress)
.build();
logger.auditEntry(auditData);
}
@Override
public synchronized void postRequest(RequestProcessingResult result) {
if (this.started == 0) {
throw new IllegalStateException("Pre-request must be called first");
}
if (!logger.isAuditEnabled()) {
return;
}
long end = System.currentTimeMillis();
AuditData auditData = AuditData.builder().startTime(started).endTime(end).statusCode(result.getStatusCode())
.responseCode(Integer.toString(result.getStatus()))
.responseDescription(result.getStatusPhrase()).clientIpAddress(clientIpAddress)
.build();
logger.auditExit(auditData);
}
}
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