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

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 * This code is free software; you can redistribute it and/or modify it

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 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

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package jdk.jfr.jcmd;

import java.io.File;

import java.util.Arrays;

import java.util.stream.Collectors;

import jdk.test.lib.Asserts;

import jdk.test.lib.dcmd.CommandExecutor;

import jdk.test.lib.dcmd.PidJcmdExecutor;

import jdk.test.lib.process.OutputAnalyzer;

public class JcmdHelper {

    // Wait until recording's state became running

    public static void waitUntilRunning(String name) throws Exception {

        long timeoutAt = System.currentTimeMillis() + 10000;

        while (true) {

            OutputAnalyzer output = jcmdCheck(name, false);

            try {

                // The expected output can look like this:

                // Recording 1: name=1 (running)

                output.shouldMatch("^Recording \\d+: name=" + name

                        + " .*\\W{1}running\\W{1}");

                return;

            } catch (RuntimeException e) {

                if (System.currentTimeMillis() > timeoutAt) {

                    Asserts.fail("Recording not started: " + name);

                }

                Thread.sleep(100);

            }

        }

    }

    public static void stopAndCheck(String name) throws Exception {

        jcmd("JFR.stop", "name=\"" + name + "\"");

        assertRecordingNotRunning(name);

    }

    public static void stopWriteToFileAndCheck(String name, File file) throws Exception {

        OutputAnalyzer output = jcmd("JFR.stop",

                "name=\"" + name + "\"",

                "filename=\"" + file.getAbsolutePath() + "\"");

        JcmdAsserts.assertStoppedAndWrittenTo(output, name, file);

        assertRecordingNotRunning(name);

    }

    public static void stopCompressAndCheck(String name, File file) throws Exception {

        OutputAnalyzer output = jcmd("JFR.stop",

                "name=\"" + name + "\"",

                "compress=true",

                "filename=\"" + file.getAbsolutePath() + "\"");

        JcmdAsserts.assertStoppedAndWrittenTo(output, name, file);

        checkAndAssertNoRecordingsAvailable();

    }

    public static void stopDefaultRecordingAndCheck() throws Exception {

        OutputAnalyzer output = jcmd("JFR.stop", "recording=0");

        JcmdAsserts.assertStoppedDefaultRecording(output);

        checkAndAssertNoRecordingsAvailable();

    }

    public static void checkAndAssertNoRecordingsAvailable() throws Exception {

        OutputAnalyzer output = jcmd("JFR.check");

        JcmdAsserts.assertNoRecordingsAvailable(output);

    }

    public static void assertRecordingNotExist(String name) throws Exception {

        OutputAnalyzer output = jcmdCheck(name, false);

        JcmdAsserts.assertRecordingNotExist(output, name);

    }

    public static void assertRecordingNotRunning(String name) throws Exception {

        OutputAnalyzer output = jcmdCheck(name, false);

        JcmdAsserts.assertRecordingNotRunning(output, name);

    }

    public static void assertRecordingIsRunning(String name) throws Exception {

        OutputAnalyzer output = jcmdCheck(name, false);

        JcmdAsserts.assertRecordingIsRunning(output, name);

    }

    public static OutputAnalyzer jcmd(int expectedExitValue, String... args) {

        String argsString = Arrays.stream(args).collect(Collectors.joining(" "));

        CommandExecutor executor = new PidJcmdExecutor();

        OutputAnalyzer oa = executor.execute(argsString);

        oa.shouldHaveExitValue(expectedExitValue);

        return oa;

    }

    public static OutputAnalyzer jcmd(String... args) {

        return jcmd(0, args);

    }

    public static OutputAnalyzer jcmdCheck(String recordingName, boolean verbose) {

        return jcmd("JFR.check", "name=" + recordingName, "verbose=" + verbose);

    }

}