com.cloudera.oryx.app.traffic.Endpoint.java Source code

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Here is the source code for com.cloudera.oryx.app.traffic.Endpoint.java

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/*
 * Copyright (c) 2015, Cloudera, Inc. All Rights Reserved.
 *
 * Cloudera, Inc. licenses this file to you 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
 *
 * This software 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 com.cloudera.oryx.app.traffic;

import javax.ws.rs.client.Invocation;
import javax.ws.rs.client.WebTarget;

import com.google.common.base.Preconditions;
import org.apache.commons.math3.random.RandomGenerator;
import org.apache.commons.math3.stat.descriptive.moment.Mean;
import org.apache.commons.math3.stat.descriptive.moment.StandardDeviation;

/**
 * Represents and endpoint that should receive requests in a traffic test.
 */
public abstract class Endpoint {

    private final String path;
    private final double relativeProb;
    private final Mean meanTimeMS;
    private final StandardDeviation stdevTimeMS;

    protected Endpoint(String path, double relativeProb) {
        Preconditions.checkArgument(relativeProb > 0.0);
        this.path = path;
        this.relativeProb = relativeProb;
        meanTimeMS = new Mean();
        stdevTimeMS = new StandardDeviation();
    }

    double getRelativeProb() {
        return relativeProb;
    }

    synchronized void recordTiming(long timeMS) {
        meanTimeMS.increment(timeMS);
        stdevTimeMS.increment(timeMS);
    }

    protected abstract Invocation makeInvocation(WebTarget target, String[] otherArgs, RandomGenerator random);

    @Override
    public synchronized String toString() {
        return path + "\tcount:" + meanTimeMS.getN() + "\tmean: " + Math.round(meanTimeMS.getResult())
                + "ms\tstdev: " + Math.round(stdevTimeMS.getResult()) + "ms";
    }

}