jdk.jfr.internal.PlatformRecording Java Examples

/**
 * Execute JFR.dump.
 *
 * @param recordingText name or id of the recording to dump, or
 *        <code>null</code>
 *
 * @param textPath file path where recording should be written.
 *
 * @return result output
 *
 * @throws DCmdException if the dump could not be completed
 */
public String execute(String recordingText, String textPath,  Boolean pathToGcRoots) throws DCmdException {
    if (textPath == null) {
        throw new DCmdException("Failed to dump %s, missing filename.", recordingText);
    }
    Recording recording = findRecording(recordingText);
    try {
        SafePath dumpFile = resolvePath(textPath, "Failed to dump %s");
        // create file for JVM
        Utils.touch(dumpFile.toPath());
        PlatformRecording r = PrivateAccess.getInstance().getPlatformRecording(recording);
        WriteableUserPath wup = new WriteableUserPath(dumpFile.toPath());

        Map<String, String> overlay = new HashMap<>();
        Utils.updateSettingPathToGcRoots(overlay, pathToGcRoots);

        r.copyTo(wup, "Dumped by user", overlay);
        reportOperationComplete("Dumped", recording, dumpFile);
    } catch (IOException | InvalidPathException e) {
        throw new DCmdException("Failed to dump %s. Could not copy recording for dump. %s", recordingText, e.getMessage());
    }
    return getResult();
}
 

public void dump(PlatformRecorder recorder, Recording recording, String name, String filename, Long maxSize, Boolean pathToGcRoots, Instant beginTime, Instant endTime) throws DCmdException {
    try (PlatformRecording r = newSnapShot(recorder, recording, pathToGcRoots)) {
        r.filter(beginTime, endTime, maxSize);
        if (r.getChunks().isEmpty()) {
            throw new DCmdException("Dump failed. No data found in the specified interval.");
        }
        SafePath dumpFile = resolvePath(recording, filename);

        // Needed for JVM
        Utils.touch(dumpFile.toPath());
        r.dumpStopped(new WriteableUserPath(dumpFile.toPath()));
        reportOperationComplete("Dumped", name, dumpFile);
    } catch (IOException | InvalidPathException e) {
        throw new DCmdException("Dump failed. Could not copy recording data. %s", e.getMessage());
    }
}
 

public void dump(PlatformRecorder recorder, Recording recording, String name, String filename, Long maxSize, Boolean pathToGcRoots, Instant beginTime, Instant endTime) throws DCmdException {
    try (PlatformRecording r = newSnapShot(recorder, recording, pathToGcRoots)) {
        r.filter(beginTime, endTime, maxSize);
        if (r.getChunks().isEmpty()) {
            throw new DCmdException("Dump failed. No data found in the specified interval.");
        }
        SafePath dumpFile = resolvePath(recording, filename);

        // Needed for JVM
        Utils.touch(dumpFile.toPath());
        r.dumpStopped(new WriteableUserPath(dumpFile.toPath()));
        reportOperationComplete("Dumped", name, dumpFile);
    } catch (IOException | InvalidPathException e) {
        throw new DCmdException("Dump failed. Could not copy recording data. %s", e.getMessage());
    }
}
 

private Recording(PlatformRecording internal) {
    this.internal = internal;
    this.internal.setRecording(this);
    if (internal.getRecording() != this) {
        throw new InternalError("Internal recording not properly setup");
    }
}
 

private PlatformRecording newSnapShot(PlatformRecorder recorder, Recording recording, Boolean pathToGcRoots) throws DCmdException, IOException {
    if (recording == null) {
        // Operate on all recordings
        PlatformRecording snapshot = recorder.newTemporaryRecording();
        recorder.fillWithRecordedData(snapshot, pathToGcRoots);
        return snapshot;
    }

    PlatformRecording pr = PrivateAccess.getInstance().getPlatformRecording(recording);
    return pr.newSnapshotClone("Dumped by user", pathToGcRoots);
}
 

private PlatformRecording newSnapShot(PlatformRecorder recorder, Recording recording, Boolean pathToGcRoots) throws DCmdException, IOException {
    if (recording == null) {
        // Operate on all recordings
        PlatformRecording snapshot = recorder.newTemporaryRecording();
        recorder.fillWithRecordedData(snapshot, pathToGcRoots);
        return snapshot;
    }

    PlatformRecording pr = PrivateAccess.getInstance().getPlatformRecording(recording);
    return pr.newSnapshotClone("Dumped by user", pathToGcRoots);
}
 

PlatformRecording getInternal() {
    return internal;
}
 

PlatformRecording newInternalRecording(Map<String, String> settings) {
    return internal.newRecording(settings);
}
 

@Override
public PlatformRecording getPlatformRecording(Recording r) {
    return r.getInternal();
}
 

PlatformRecording getInternal() {
    return internal;
}
 

@Override
public PlatformRecording getPlatformRecording(Recording r) {
    return r.getInternal();
}
 

PlatformRecording getInternal() {
    return internal;
}
 

@Override
public PlatformRecording getPlatformRecording(Recording r) {
    return r.getInternal();
}
 

/**
 * Returns an immutable list of the available recordings.
 * <p>
 * A recording becomes available when it is created. It becomes unavailable when it
 * is in the {@code CLOSED} state, typically after a call to
 * {@link Recording#close()}.
 *
 * @return a list of recordings, not {@code null}
 */
public List<Recording> getRecordings() {
    List<Recording> recs = new ArrayList<>();
    for (PlatformRecording internal : internal.getRecordings()) {
        recs.add(internal.getRecording());
    }
    return Collections.unmodifiableList(recs);
}
 

/**
 * Returns an immutable list of the available recordings.
 * <p>
 * A recording becomes available when it is created. It becomes unavailable when it
 * is in the {@code CLOSED} state, typically after a call to
 * {@link Recording#close()}.
 *
 * @return a list of recordings, not {@code null}
 */
public List<Recording> getRecordings() {
    List<Recording> recs = new ArrayList<>();
    for (PlatformRecording r : internal.getRecordings()) {
        recs.add(r.getRecording());
    }
    return Collections.unmodifiableList(recs);
}
 

/**
 * Returns an immutable list of the available recordings.
 * <p>
 * A recording becomes available when it is created. It becomes unavailable when it
 * is in the {@code CLOSED} state, typically after a call to
 * {@link Recording#close()}.
 *
 * @return a list of recordings, not {@code null}
 */
public List<Recording> getRecordings() {
    List<Recording> recs = new ArrayList<>();
    for (PlatformRecording r : internal.getRecordings()) {
        recs.add(r.getRecording());
    }
    return Collections.unmodifiableList(recs);
}