ItExternalProfiler.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
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 *
 * This code 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 General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
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package org.openjdk.jmh.it.profilers;

import org.junit.Assert;
import org.openjdk.jmh.infra.BenchmarkParams;
import org.openjdk.jmh.profile.ExternalProfiler;
import org.openjdk.jmh.results.BenchmarkResult;
import org.openjdk.jmh.results.Result;

import java.io.File;
import java.util.Collection;
import java.util.Collections;

public class ItExternalProfiler implements ExternalProfiler {

    @Override
    public Collection<String> addJVMInvokeOptions(BenchmarkParams params) {
        return Collections.emptyList();
    }

    @Override
    public Collection<String> addJVMOptions(BenchmarkParams params) {
        return Collections.emptyList();
    }

    @Override
    public void beforeTrial(BenchmarkParams benchmarkParams) {
        // intentionally left blank
    }

    @Override
    public Collection<? extends Result> afterTrial(BenchmarkResult br, long pid, File stdOut, File stdErr) {
        Assert.assertFalse("Forked VM PID is not 0", pid == 0);
        return Collections.emptyList();
    }

    @Override
    public boolean allowPrintOut() {
        return true;
    }

    @Override
    public boolean allowPrintErr() {
        return true;
    }

    @Override
    public String getDescription() {
        return "Integration Test External Profiler";
    }
}