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package jdk.jfr.jmx;

import java.util.HashMap;
import java.util.Map;

import jdk.jfr.Recording;
import jdk.management.jfr.FlightRecorderMXBean;
import jdk.management.jfr.RecordingInfo;
import jdk.test.lib.Asserts;
import jdk.test.lib.jfr.EventNames;

/**
 * @test
 * @requires vm.flagless
 * @summary Verify Exception when setting invalid config.
 * @requires vm.hasJFR
 * @library /test/lib /test/jdk
 * @run main/othervm jdk.jfr.jmx.TestSetConfigurationInvalid
 */
public class TestSetConfigurationInvalid {
    public static void main(String[] args) throws Exception {
        FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean();
        long recId = bean.newRecording();

        final String correctConfig =
        "<?xml version=\"1.0\" encoding=\"UTF-8\"?> \n" +
        "<configuration version=\"2.0\" label=\"TestName\" description='TestDesc' provider='TestProvider'>\n" +
        "  <event name=\"" + EventNames.ClassLoad + "\">\r" +
        " \t <setting name=\"enabled\" control='class-loading-enabled'>false</setting>\r\n" +
        "    <setting name=\"stackTrace\">true</setting>\t\r\n" +
        "    <setting name=\"threshold\">5 ms</setting> \n" +
        "  </event>  " +
        "  <control>  " +
        "    <flag name=\"class-loading-enabled\" label=\"Class Loading\">false</flag>\n" +
        "  </control>" +
        "</configuration>";

        Map<String, String> expectedSetting = new HashMap<>();
        expectedSetting.put(EventNames.ClassLoad + "#enabled", "false");
        expectedSetting.put(EventNames.ClassLoad + "#stackTrace", "true");
        expectedSetting.put(EventNames.ClassLoad + "#threshold", "5 ms");

        // First set a few invalid configs. Should get Exceptions.
        try {
            bean.setConfiguration(recId, null);
            Asserts.fail("Expected NullPointerException");
        } catch (NullPointerException e) {
            // Expected exception
        }

        setInvalidConfig(recId, "Dummy text");
        setInvalidConfig(recId, correctConfig.replace("/event", "event"));
        setInvalidConfig(recId, correctConfig.replace("<control>", ""));

        // Verify that we can set a correct setting after the failed attempts.
        bean.setConfiguration(recId, correctConfig);
        RecordingInfo jmxRecording = JmxHelper.getJmxRecording(recId);
        Recording javaRecording = JmxHelper.getJavaRecording(recId);
        JmxHelper.verifyEquals(jmxRecording, javaRecording);

        Map<String, String> settings = jmxRecording.getSettings();
        for (String name : expectedSetting.keySet()) {
            String value = settings.remove(name);
            Asserts.assertNotNull(value, "No setting with name " + name);
            Asserts.assertEquals(value, expectedSetting.get(name), "Wrong setting value");
        }
        Asserts.assertTrue(settings.isEmpty(), "Extra settings found " + settings.keySet());
    }

    private static void setInvalidConfig(long recId, String config) {
        try {
            JmxHelper.getFlighteRecorderMXBean().setConfiguration(recId, config);
            System.out.printf("Invalid config:%n%s", config);
            Asserts.fail("No exception when setting invalid configuration");
        } catch (IllegalArgumentException e) {
            // Expected exception
            // Simple check if error message is about parse error.
            String msg = e.getMessage().toLowerCase();
            Asserts.assertTrue(msg.contains("parse"), String.format("Missing 'parse' in msg '%s'", msg));
        }
    }

}
