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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 javax.servlet.http.HttpServletRequest;
/**
* Tracker for all the elements of ONAP logging and tracing at an entry point to an application.
* The order of invocations is important, and on {@link #preRequest(HttpServletRequest)} it respects the order of
* trackers passed to the constructor. On {@link #postRequest(RequestProcessingResult)}, the invocation will be in the
* <b>reverse</b> order.
*
* @author evitaliy
* @since 01 Aug 2018
*/
public class CombinedTracker implements Tracker {
private final Tracker[] trackers;
public CombinedTracker(Tracker... trackers) {
this.trackers = new Tracker[trackers.length];
System.arraycopy(trackers, 0, this.trackers, 0, trackers.length);
}
@Override
public void preRequest(HttpServletRequest request) {
for (Tracker t : trackers) {
t.preRequest(request);
}
}
@Override
public void postRequest(RequestProcessingResult result) {
for (int i = trackers.length - 1; i > -1; i--) {
trackers[i].postRequest(result);
}
}
}
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