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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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 * 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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package jdk.jfr.cmd;

import java.io.IOException;

import java.nio.file.Files;

import java.nio.file.Path;

import java.nio.file.Paths;

import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.util.Date;

import jdk.jfr.Configuration;

import jdk.jfr.Recording;

import jdk.jfr.consumer.RecordingFile;

import jdk.test.lib.process.OutputAnalyzer;

/*

 * @test

 * @summary Test jfr split

 * @key jfr

 * @library /test/lib /test/jdk

 * @run main/othervm jdk.jfr.cmd.TestSplit

 */

public class TestSplit {

    public static void main(String[] args) throws Exception {

        SimpleDateFormat formatter = new SimpleDateFormat("yyyy_MM_dd_HH_mm_ss");

        String dateText = formatter.format(new Date());

        Path recordingFileA = Paths.get("many-chunks-A-" + dateText + ".jfr");

        Path recordingFileB = Paths.get("many-chunks-B-" + dateText + ".jfr");

        makeRecordingWithChunks(6, recordingFileA);

        Files.copy(recordingFileA, recordingFileB);

        String fileAText = recordingFileA.toAbsolutePath().toString();

        String fileBText = recordingFileB.toAbsolutePath().toString();

        OutputAnalyzer output = ExecuteHelper.run("split");

        output.shouldContain("Missing file");

        output = ExecuteHelper.run("split", "--wrongOption1", "..wrongOption2", "..wrongOption3", fileAText);

        output.shouldContain("Too many arguments");

        output = ExecuteHelper.run("split", "--wrongOption", fileAText);

        output.shouldContain("Unknown option");

        output = ExecuteHelper.run("split", "--wrongOption", "1", fileAText);

        output.shouldContain("Unknown option");

        output = ExecuteHelper.run("split", "--maxchunks", "-3", fileAText);

        output.shouldContain("Must be at least one chunk per file");

        output = ExecuteHelper.run("split", "--maxchunks", "1000", fileAText);

        output.shouldContain("Number of chunks in recording");

        output.shouldContain("doesn't exceed max chunks");

        output = ExecuteHelper.run("split", fileAText); // maxchunks is 5 by

                                                        // default

        System.out.println(output.getOutput());

        System.out.println(fileAText);

        verifyRecording(fileAText.substring(0, fileAText.length() - 4) + "_1.jfr");

        verifyRecording(fileAText.substring(0, fileAText.length() - 4) + "_2.jfr");

        output = ExecuteHelper.run("split", "--maxchunks", "2", fileBText);

        verifyRecording(fileBText.substring(0, fileBText.length() - 4) + "_1.jfr");

        verifyRecording(fileBText.substring(0, fileBText.length() - 4) + "_2.jfr");

        verifyRecording(fileBText.substring(0, fileBText.length() - 4) + "_3.jfr");

        output = ExecuteHelper.run("split", "--maxchunks", "2", fileBText);

        output.shouldContain("file with that name already exist");

    }

    private static void verifyRecording(String name) throws IOException {

        System.out.println("split name " + name);

        try (RecordingFile rf = new RecordingFile(Paths.get(name))) {

            rf.readEvent();

        }

    }

    // Will create at least 2 * count + 1 chunks.

    private static void makeRecordingWithChunks(int count, Path file) throws IOException, ParseException {

        Recording main = new Recording(Configuration.getConfiguration("default"));

        main.setToDisk(true);

        main.start();

        for (int i = 0; i < count; i++) {

            Recording r = new Recording();

            r.setToDisk(true);

            r.start();

            r.stop();

            r.close();

        }

        main.stop();

        main.dump(file);

        main.close();

    }

}