MetricsInInterceptor.java

/**
 * Copyright (c) Codice Foundation
 * <p>
 * This is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser
 * General Public License as published by the Free Software Foundation, either version 3 of the
 * License, or any later version.
 * <p>
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details. A copy of the GNU Lesser General Public License
 * is distributed along with this program and can be found at
 * <http://www.gnu.org/licenses/lgpl.html>.
 */
package ddf.metrics.interceptor;

import org.apache.cxf.interceptor.Fault;
import org.apache.cxf.message.Exchange;
import org.apache.cxf.message.Message;
import org.apache.cxf.phase.Phase;

/**
 *
 * CXF in interceptor used to capture HTTP message latency metrics.
 *
 * This interceptor records the time that a message is received and the
 * {@link MetricsOutInterceptor} calculates the total time and saves the result.
 *
 * @author willisod
 *
 */
public class MetricsInInterceptor extends AbstractMetricsInterceptor {

    static final String TIME_IN = "TimeIn";

    public MetricsInInterceptor() {
        super(Phase.RECEIVE);
    }

    @Override
    public void handleMessage(Message message) throws Fault {

        Exchange ex = message.getExchange();

        if (null == ex) {
            return;
        }

        if (isClient(message)) {
            if (!ex.isOneWay()) {
                endHandlingMessage(ex);
            }
        } else {
            beginHandlingMessage(ex);
        }
    }

}