SampleRecorder.java

/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch 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
 *
 * 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.elasticsearch.client.benchmark.metrics;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

/**
 * Stores measurement samples.
 *
 * This class is NOT threadsafe.
 */
public final class SampleRecorder {
    private final List<Sample> samples;

    public SampleRecorder(int iterations) {
        this.samples = new ArrayList<>(iterations);
    }

    public void addSample(Sample sample) {
        samples.add(sample);
    }

    public List<Sample> getSamples() {
        return Collections.unmodifiableList(samples);
    }
}