author | egahlin |
Thu, 13 Dec 2018 14:21:04 +0100 | |
changeset 53013 | c8b2a408628b |
parent 52413 | 6372f5af9612 |
child 55256 | 3b22c7e00573 |
child 57360 | 5d043a159d5c |
child 58678 | 9cf78a70fa4f |
permissions | -rw-r--r-- |
50113 | 1 |
/* |
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* Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package jdk.jfr.internal; |
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import static jdk.jfr.internal.LogLevel.DEBUG; |
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import static jdk.jfr.internal.LogLevel.WARN; |
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import static jdk.jfr.internal.LogTag.JFR; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.nio.channels.FileChannel; |
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import java.nio.file.StandardOpenOption; |
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import java.security.AccessControlContext; |
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import java.security.AccessController; |
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import java.time.Duration; |
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import java.time.Instant; |
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import java.time.LocalDateTime; |
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import java.util.ArrayList; |
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import java.util.Collections; |
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import java.util.Date; |
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import java.util.LinkedHashMap; |
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import java.util.LinkedList; |
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import java.util.List; |
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import java.util.Map; |
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import java.util.StringJoiner; |
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import java.util.TimerTask; |
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import java.util.TreeMap; |
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import jdk.jfr.Configuration; |
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import jdk.jfr.FlightRecorderListener; |
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import jdk.jfr.Recording; |
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import jdk.jfr.RecordingState; |
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import jdk.jfr.internal.SecuritySupport.SafePath; |
50113 | 57 |
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public final class PlatformRecording implements AutoCloseable { |
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private final PlatformRecorder recorder; |
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private final long id; |
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// Recording settings |
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private Map<String, String> settings = new LinkedHashMap<>(); |
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private Duration duration; |
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private Duration maxAge; |
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private long maxSize; |
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private WriteableUserPath destination; |
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private boolean toDisk = true; |
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private String name; |
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private boolean dumpOnExit; |
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50745 | 73 |
private SafePath dumpOnExitDirectory = new SafePath("."); |
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// Timestamp information |
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private Instant stopTime; |
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private Instant startTime; |
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// Misc, information |
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private RecordingState state = RecordingState.NEW; |
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private long size; |
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private final LinkedList<RepositoryChunk> chunks = new LinkedList<>(); |
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private volatile Recording recording; |
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private TimerTask stopTask; |
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private TimerTask startTask; |
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private AccessControlContext noDestinationDumpOnExitAccessControlContext; |
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private boolean shuoldWriteActiveRecordingEvent = true; |
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PlatformRecording(PlatformRecorder recorder, long id) { |
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// Typically the access control context is taken |
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// when you call dump(Path) or setDdestination(Path), |
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// but if no destination is set and dumponexit=true |
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// the control context of the recording is taken when the |
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50745 | 93 |
// Recording object is constructed. This works well for |
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// -XX:StartFlightRecording and JFR.dump |
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this.noDestinationDumpOnExitAccessControlContext = AccessController.getContext(); |
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this.id = id; |
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this.recorder = recorder; |
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this.name = String.valueOf(id); |
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} |
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public void start() { |
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RecordingState oldState; |
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RecordingState newState; |
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synchronized (recorder) { |
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50197
f4735ff8d17d
8195818: JFR.start should increase autogenerated name by one
egahlin
parents:
50194
diff
changeset
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oldState = getState(); |
50113 | 106 |
if (!Utils.isBefore(state, RecordingState.RUNNING)) { |
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throw new IllegalStateException("Recording can only be started once."); |
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} |
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if (startTask != null) { |
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startTask.cancel(); |
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startTask = null; |
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startTime = null; |
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} |
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recorder.start(this); |
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Logger.log(LogTag.JFR, LogLevel.INFO, () -> { |
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// Only print non-default values so it easy to see |
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// which options were added |
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50745 | 118 |
StringJoiner options = new StringJoiner(", "); |
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if (!toDisk) { |
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options.add("disk=false"); |
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} |
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if (maxAge != null) { |
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options.add("maxage=" + Utils.formatTimespan(maxAge, "")); |
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} |
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if (maxSize != 0) { |
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53013 | 126 |
options.add("maxsize=" + Utils.formatBytesCompact(maxSize)); |
50745 | 127 |
} |
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if (dumpOnExit) { |
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options.add("dumponexit=true"); |
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} |
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if (duration != null) { |
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options.add("duration=" + Utils.formatTimespan(duration, "")); |
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} |
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if (destination != null) { |
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options.add("filename=" + destination.getText()); |
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} |
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String optionText = options.toString(); |
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if (optionText.length() != 0) { |
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optionText = "{" + optionText + "}"; |
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} |
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return "Started recording \"" + getName() + "\" (" + getId() + ") " + optionText; |
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}); |
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8195818: JFR.start should increase autogenerated name by one
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50194
diff
changeset
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newState = getState(); |
50113 | 144 |
} |
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notifyIfStateChanged(oldState, newState); |
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} |
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public boolean stop(String reason) { |
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RecordingState oldState; |
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RecordingState newState; |
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synchronized (recorder) { |
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50197
f4735ff8d17d
8195818: JFR.start should increase autogenerated name by one
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parents:
50194
diff
changeset
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oldState = getState(); |
50113 | 153 |
if (stopTask != null) { |
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stopTask.cancel(); |
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stopTask = null; |
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} |
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50745 | 157 |
recorder.stop(this); |
50197
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8195818: JFR.start should increase autogenerated name by one
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parents:
50194
diff
changeset
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String endText = reason == null ? "" : ". Reason \"" + reason + "\"."; |
50745 | 159 |
Logger.log(LogTag.JFR, LogLevel.INFO, "Stopped recording \"" + getName() + "\" (" + getId() + ")" + endText); |
50113 | 160 |
this.stopTime = Instant.now(); |
50197
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8195818: JFR.start should increase autogenerated name by one
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parents:
50194
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changeset
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newState = getState(); |
50113 | 162 |
} |
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WriteableUserPath dest = getDestination(); |
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50745 | 164 |
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50113 | 165 |
if (dest != null) { |
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try { |
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50745 | 167 |
dumpStopped(dest); |
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Logger.log(LogTag.JFR, LogLevel.INFO, "Wrote recording \"" + getName() + "\" (" + getId() + ") to " + dest.getText()); |
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50113 | 169 |
notifyIfStateChanged(newState, oldState); |
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close(); // remove if copied out |
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50745 | 171 |
} catch(IOException e) { |
50113 | 172 |
// throw e; // BUG8925030 |
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} |
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} else { |
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notifyIfStateChanged(newState, oldState); |
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} |
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return true; |
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} |
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public void scheduleStart(Duration delay) { |
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synchronized (recorder) { |
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ensureOkForSchedule(); |
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startTime = Instant.now().plus(delay); |
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LocalDateTime now = LocalDateTime.now().plus(delay); |
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setState(RecordingState.DELAYED); |
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startTask = createStartTask(); |
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recorder.getTimer().schedule(startTask, delay.toMillis()); |
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50745 | 189 |
Logger.log(LogTag.JFR, LogLevel.INFO, "Scheduled recording \"" + getName() + "\" (" + getId() + ") to start at " + now); |
50113 | 190 |
} |
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} |
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private void ensureOkForSchedule() { |
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if (getState() != RecordingState.NEW) { |
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throw new IllegalStateException("Only a new recoridng can be scheduled for start"); |
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} |
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} |
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private TimerTask createStartTask() { |
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// Taking ref. to recording here. |
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// Opens up for memory leaks. |
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return new TimerTask() { |
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@Override |
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public void run() { |
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synchronized (recorder) { |
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if (getState() != RecordingState.DELAYED) { |
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return; |
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} |
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start(); |
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} |
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} |
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}; |
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} |
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void scheduleStart(Instant startTime) { |
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synchronized (recorder) { |
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ensureOkForSchedule(); |
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this.startTime = startTime; |
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setState(RecordingState.DELAYED); |
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startTask = createStartTask(); |
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recorder.getTimer().schedule(startTask, startTime.toEpochMilli()); |
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} |
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} |
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public Map<String, String> getSettings() { |
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synchronized (recorder) { |
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return settings; |
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} |
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} |
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public long getSize() { |
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return size; |
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} |
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public Instant getStopTime() { |
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synchronized (recorder) { |
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return stopTime; |
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} |
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} |
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public Instant getStartTime() { |
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synchronized (recorder) { |
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return startTime; |
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} |
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} |
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public Long getMaxSize() { |
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synchronized (recorder) { |
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return maxSize; |
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} |
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} |
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public Duration getMaxAge() { |
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synchronized (recorder) { |
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return maxAge; |
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} |
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} |
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public String getName() { |
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synchronized (recorder) { |
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return name; |
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} |
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} |
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public RecordingState getState() { |
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synchronized (recorder) { |
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return state; |
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} |
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} |
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@Override |
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public void close() { |
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RecordingState oldState; |
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RecordingState newState; |
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synchronized (recorder) { |
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oldState = getState(); |
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if (RecordingState.CLOSED != getState()) { |
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if (startTask != null) { |
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startTask.cancel(); |
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startTask = null; |
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} |
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recorder.finish(this); |
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for (RepositoryChunk c : chunks) { |
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removed(c); |
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} |
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chunks.clear(); |
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setState(RecordingState.CLOSED); |
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50745 | 289 |
Logger.log(LogTag.JFR, LogLevel.INFO, "Closed recording \"" + getName() + "\" (" + getId() + ")"); |
50113 | 290 |
} |
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newState = getState(); |
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} |
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notifyIfStateChanged(newState, oldState); |
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} |
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50745 | 296 |
// To be used internally when doing dumps. |
297 |
// Caller must have recorder lock and close recording before releasing lock |
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public PlatformRecording newSnapshotClone(String reason, Boolean pathToGcRoots) throws IOException { |
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if(!Thread.holdsLock(recorder)) { |
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throw new InternalError("Caller must have recorder lock"); |
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} |
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RecordingState state = getState(); |
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if (state == RecordingState.CLOSED) { |
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throw new IOException("Recording \"" + name + "\" (id=" + id + ") has been closed, no contents to write"); |
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} |
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if (state == RecordingState.DELAYED || state == RecordingState.NEW) { |
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throw new IOException("Recording \"" + name + "\" (id=" + id + ") has not started, no contents to write"); |
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} |
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if (state == RecordingState.STOPPED) { |
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PlatformRecording clone = recorder.newTemporaryRecording(); |
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for (RepositoryChunk r : chunks) { |
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clone.add(r); |
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50113 | 313 |
} |
50745 | 314 |
return clone; |
315 |
} |
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50113 | 316 |
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50745 | 317 |
// Recording is RUNNING, create a clone |
318 |
PlatformRecording clone = recorder.newTemporaryRecording(); |
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clone.setShouldWriteActiveRecordingEvent(false); |
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320 |
clone.setName(getName()); |
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321 |
clone.setDestination(this.destination); |
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clone.setToDisk(true); |
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// We purposely don't clone settings here, since |
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324 |
// a union a == a |
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325 |
if (!isToDisk()) { |
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// force memory contents to disk |
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clone.start(); |
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328 |
} else { |
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// using existing chunks on disk |
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330 |
for (RepositoryChunk c : chunks) { |
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331 |
clone.add(c); |
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50113 | 332 |
} |
50745 | 333 |
clone.setState(RecordingState.RUNNING); |
334 |
clone.setStartTime(getStartTime()); |
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50113 | 335 |
} |
50745 | 336 |
if (pathToGcRoots == null) { |
337 |
clone.setSettings(getSettings()); // needed for old object sample |
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338 |
clone.stop(reason); // dumps to destination path here |
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339 |
} else { |
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340 |
// Risk of violating lock order here, since |
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341 |
// clone.stop() will take recorder lock inside |
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342 |
// metadata lock, but OK if we already |
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// have recorder lock when we entered metadata lock |
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344 |
synchronized (MetadataRepository.getInstance()) { |
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clone.setSettings(OldObjectSample.createSettingsForSnapshot(this, pathToGcRoots)); |
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clone.stop(reason); |
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50113 | 347 |
} |
50745 | 348 |
} |
349 |
return clone; |
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50113 | 350 |
} |
351 |
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352 |
public boolean isToDisk() { |
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353 |
synchronized (recorder) { |
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354 |
return toDisk; |
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355 |
} |
|
356 |
} |
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357 |
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358 |
public void setMaxSize(long maxSize) { |
|
359 |
synchronized (recorder) { |
|
360 |
if (getState() == RecordingState.CLOSED) { |
|
361 |
throw new IllegalStateException("Can't set max age when recording is closed"); |
|
362 |
} |
|
363 |
this.maxSize = maxSize; |
|
364 |
trimToSize(); |
|
365 |
} |
|
366 |
} |
|
367 |
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50745 | 368 |
public void setDestination(WriteableUserPath userSuppliedPath) throws IOException { |
50113 | 369 |
synchronized (recorder) { |
370 |
if (Utils.isState(getState(), RecordingState.STOPPED, RecordingState.CLOSED)) { |
|
371 |
throw new IllegalStateException("Destination can't be set on a recording that has been stopped/closed"); |
|
372 |
} |
|
373 |
this.destination = userSuppliedPath; |
|
374 |
} |
|
375 |
} |
|
376 |
||
377 |
public WriteableUserPath getDestination() { |
|
378 |
synchronized (recorder) { |
|
379 |
return destination; |
|
380 |
} |
|
381 |
} |
|
382 |
||
383 |
void setState(RecordingState state) { |
|
384 |
synchronized (recorder) { |
|
385 |
this.state = state; |
|
386 |
} |
|
387 |
} |
|
388 |
||
389 |
void setStartTime(Instant startTime) { |
|
390 |
synchronized (recorder) { |
|
391 |
this.startTime = startTime; |
|
392 |
} |
|
393 |
} |
|
394 |
||
395 |
void setStopTime(Instant timeStamp) { |
|
396 |
synchronized (recorder) { |
|
397 |
stopTime = timeStamp; |
|
398 |
} |
|
399 |
} |
|
400 |
||
401 |
public long getId() { |
|
402 |
synchronized (recorder) { |
|
403 |
return id; |
|
404 |
} |
|
405 |
} |
|
406 |
||
407 |
public void setName(String name) { |
|
408 |
synchronized (recorder) { |
|
409 |
ensureNotClosed(); |
|
410 |
this.name = name; |
|
411 |
} |
|
412 |
} |
|
413 |
||
414 |
private void ensureNotClosed() { |
|
415 |
if (getState() == RecordingState.CLOSED) { |
|
416 |
throw new IllegalStateException("Can't change name on a closed recording"); |
|
417 |
} |
|
418 |
} |
|
419 |
||
420 |
public void setDumpOnExit(boolean dumpOnExit) { |
|
421 |
synchronized (recorder) { |
|
422 |
this.dumpOnExit = dumpOnExit; |
|
423 |
} |
|
424 |
} |
|
425 |
||
426 |
public boolean getDumpOnExit() { |
|
427 |
synchronized (recorder) { |
|
428 |
return dumpOnExit; |
|
429 |
} |
|
430 |
} |
|
431 |
||
432 |
public void setToDisk(boolean toDisk) { |
|
433 |
synchronized (recorder) { |
|
434 |
if (Utils.isState(getState(), RecordingState.NEW, RecordingState.DELAYED)) { |
|
435 |
this.toDisk = toDisk; |
|
436 |
} else { |
|
437 |
throw new IllegalStateException("Recording option disk can't be changed after recording has started"); |
|
438 |
} |
|
439 |
} |
|
440 |
} |
|
441 |
||
442 |
public void setSetting(String id, String value) { |
|
443 |
synchronized (recorder) { |
|
444 |
this.settings.put(id, value); |
|
445 |
if (getState() == RecordingState.RUNNING) { |
|
446 |
recorder.updateSettings(); |
|
447 |
} |
|
448 |
} |
|
449 |
} |
|
450 |
||
451 |
public void setSettings(Map<String, String> settings) { |
|
452 |
setSettings(settings, true); |
|
453 |
} |
|
454 |
||
455 |
private void setSettings(Map<String, String> settings, boolean update) { |
|
52413 | 456 |
if (Logger.shouldLog(LogTag.JFR_SETTING, LogLevel.INFO) && update) { |
50113 | 457 |
TreeMap<String, String> ordered = new TreeMap<>(settings); |
458 |
Logger.log(LogTag.JFR_SETTING, LogLevel.INFO, "New settings for recording \"" + getName() + "\" (" + getId() + ")"); |
|
459 |
for (Map.Entry<String, String> entry : ordered.entrySet()) { |
|
50745 | 460 |
String text = entry.getKey() + "=\"" + entry.getValue() + "\""; |
50113 | 461 |
Logger.log(LogTag.JFR_SETTING, LogLevel.INFO, text); |
462 |
} |
|
463 |
} |
|
464 |
synchronized (recorder) { |
|
465 |
this.settings = new LinkedHashMap<>(settings); |
|
466 |
if (getState() == RecordingState.RUNNING && update) { |
|
467 |
recorder.updateSettings(); |
|
468 |
} |
|
469 |
} |
|
470 |
} |
|
471 |
||
472 |
private void notifyIfStateChanged(RecordingState newState, RecordingState oldState) { |
|
473 |
if (oldState == newState) { |
|
474 |
return; |
|
475 |
} |
|
476 |
for (FlightRecorderListener cl : PlatformRecorder.getListeners()) { |
|
477 |
try { |
|
478 |
cl.recordingStateChanged(getRecording()); |
|
479 |
} catch (RuntimeException re) { |
|
480 |
Logger.log(JFR, WARN, "Error notifying recorder listener:" + re.getMessage()); |
|
481 |
} |
|
482 |
} |
|
483 |
} |
|
484 |
||
485 |
public void setRecording(Recording recording) { |
|
486 |
this.recording = recording; |
|
487 |
} |
|
488 |
||
489 |
public Recording getRecording() { |
|
490 |
return recording; |
|
491 |
} |
|
492 |
||
493 |
@Override |
|
494 |
public String toString() { |
|
495 |
return getName() + " (id=" + getId() + ") " + getState(); |
|
496 |
} |
|
497 |
||
498 |
public void setConfiguration(Configuration c) { |
|
499 |
setSettings(c.getSettings()); |
|
500 |
} |
|
501 |
||
502 |
public void setMaxAge(Duration maxAge) { |
|
503 |
synchronized (recorder) { |
|
504 |
if (getState() == RecordingState.CLOSED) { |
|
505 |
throw new IllegalStateException("Can't set max age when recording is closed"); |
|
506 |
} |
|
507 |
this.maxAge = maxAge; |
|
508 |
if (maxAge != null) { |
|
509 |
trimToAge(Instant.now().minus(maxAge)); |
|
510 |
} |
|
511 |
} |
|
512 |
} |
|
513 |
||
514 |
void appendChunk(RepositoryChunk chunk) { |
|
515 |
if (!chunk.isFinished()) { |
|
516 |
throw new Error("not finished chunk " + chunk.getStartTime()); |
|
517 |
} |
|
518 |
synchronized (recorder) { |
|
519 |
if (!toDisk) { |
|
520 |
return; |
|
521 |
} |
|
522 |
if (maxAge != null) { |
|
523 |
trimToAge(chunk.getEndTime().minus(maxAge)); |
|
524 |
} |
|
525 |
chunks.addLast(chunk); |
|
526 |
added(chunk); |
|
527 |
trimToSize(); |
|
528 |
} |
|
529 |
} |
|
530 |
||
531 |
private void trimToSize() { |
|
532 |
if (maxSize == 0) { |
|
533 |
return; |
|
534 |
} |
|
535 |
while (size > maxSize && chunks.size() > 1) { |
|
536 |
RepositoryChunk c = chunks.removeFirst(); |
|
537 |
removed(c); |
|
538 |
} |
|
539 |
} |
|
540 |
||
541 |
private void trimToAge(Instant oldest) { |
|
542 |
while (!chunks.isEmpty()) { |
|
543 |
RepositoryChunk oldestChunk = chunks.peek(); |
|
544 |
if (oldestChunk.getEndTime().isAfter(oldest)) { |
|
545 |
return; |
|
546 |
} |
|
547 |
chunks.removeFirst(); |
|
548 |
removed(oldestChunk); |
|
549 |
} |
|
550 |
} |
|
551 |
||
552 |
void add(RepositoryChunk c) { |
|
553 |
chunks.add(c); |
|
554 |
added(c); |
|
555 |
} |
|
556 |
||
557 |
private void added(RepositoryChunk c) { |
|
558 |
c.use(); |
|
559 |
size += c.getSize(); |
|
50745 | 560 |
Logger.log(JFR, DEBUG, () -> "Recording \"" + name + "\" (" + id + ") added chunk " + c.toString() + ", current size=" + size); |
50113 | 561 |
} |
562 |
||
563 |
private void removed(RepositoryChunk c) { |
|
564 |
size -= c.getSize(); |
|
50745 | 565 |
Logger.log(JFR, DEBUG, () -> "Recording \"" + name + "\" (" + id + ") removed chunk " + c.toString() + ", current size=" + size); |
50113 | 566 |
c.release(); |
567 |
} |
|
568 |
||
569 |
public List<RepositoryChunk> getChunks() { |
|
570 |
return chunks; |
|
571 |
} |
|
572 |
||
573 |
public InputStream open(Instant start, Instant end) throws IOException { |
|
574 |
synchronized (recorder) { |
|
575 |
if (getState() != RecordingState.STOPPED) { |
|
576 |
throw new IOException("Recording must be stopped before it can be read."); |
|
577 |
} |
|
578 |
List<RepositoryChunk> chunksToUse = new ArrayList<RepositoryChunk>(); |
|
579 |
for (RepositoryChunk chunk : chunks) { |
|
580 |
if (chunk.isFinished()) { |
|
581 |
Instant chunkStart = chunk.getStartTime(); |
|
582 |
Instant chunkEnd = chunk.getEndTime(); |
|
583 |
if (start == null || !chunkEnd.isBefore(start)) { |
|
584 |
if (end == null || !chunkStart.isAfter(end)) { |
|
585 |
chunksToUse.add(chunk); |
|
586 |
} |
|
587 |
} |
|
588 |
} |
|
589 |
} |
|
590 |
if (chunksToUse.isEmpty()) { |
|
591 |
return null; |
|
592 |
} |
|
593 |
return new ChunkInputStream(chunksToUse); |
|
594 |
} |
|
595 |
} |
|
596 |
||
597 |
public Duration getDuration() { |
|
598 |
synchronized (recorder) { |
|
599 |
return duration; |
|
600 |
} |
|
601 |
} |
|
602 |
||
603 |
void setInternalDuration(Duration duration) { |
|
604 |
this.duration = duration; |
|
605 |
} |
|
606 |
||
607 |
public void setDuration(Duration duration) { |
|
608 |
synchronized (recorder) { |
|
609 |
if (Utils.isState(getState(), RecordingState.STOPPED, RecordingState.CLOSED)) { |
|
610 |
throw new IllegalStateException("Duration can't be set after a recording has been stopped/closed"); |
|
611 |
} |
|
612 |
setInternalDuration(duration); |
|
613 |
if (getState() != RecordingState.NEW) { |
|
614 |
updateTimer(); |
|
615 |
} |
|
616 |
} |
|
617 |
} |
|
618 |
||
619 |
void updateTimer() { |
|
620 |
if (stopTask != null) { |
|
621 |
stopTask.cancel(); |
|
622 |
stopTask = null; |
|
623 |
} |
|
624 |
if (getState() == RecordingState.CLOSED) { |
|
625 |
return; |
|
626 |
} |
|
627 |
if (duration != null) { |
|
628 |
stopTask = createStopTask(); |
|
629 |
recorder.getTimer().schedule(stopTask, new Date(startTime.plus(duration).toEpochMilli())); |
|
630 |
} |
|
631 |
} |
|
632 |
||
633 |
TimerTask createStopTask() { |
|
634 |
return new TimerTask() { |
|
635 |
@Override |
|
636 |
public void run() { |
|
637 |
try { |
|
638 |
stop("End of duration reached"); |
|
639 |
} catch (Throwable t) { |
|
640 |
// Prevent malicious user to propagate exception callback in the wrong context |
|
50745 | 641 |
Logger.log(LogTag.JFR, LogLevel.ERROR, "Could not stop recording."); |
50113 | 642 |
} |
643 |
} |
|
644 |
}; |
|
645 |
} |
|
646 |
||
647 |
public Recording newCopy(boolean stop) { |
|
648 |
return recorder.newCopy(this, stop); |
|
649 |
} |
|
650 |
||
651 |
void setStopTask(TimerTask stopTask) { |
|
652 |
synchronized (recorder) { |
|
653 |
this.stopTask = stopTask; |
|
654 |
} |
|
655 |
} |
|
656 |
||
657 |
void clearDestination() { |
|
50745 | 658 |
destination = null; |
50113 | 659 |
} |
660 |
||
661 |
public AccessControlContext getNoDestinationDumpOnExitAccessControlContext() { |
|
662 |
return noDestinationDumpOnExitAccessControlContext; |
|
663 |
} |
|
664 |
||
665 |
void setShouldWriteActiveRecordingEvent(boolean shouldWrite) { |
|
50745 | 666 |
this.shuoldWriteActiveRecordingEvent = shouldWrite; |
50113 | 667 |
} |
668 |
||
669 |
boolean shouldWriteMetadataEvent() { |
|
670 |
return shuoldWriteActiveRecordingEvent; |
|
671 |
} |
|
50745 | 672 |
|
673 |
// Dump running and stopped recordings |
|
674 |
public void dump(WriteableUserPath writeableUserPath) throws IOException { |
|
675 |
synchronized (recorder) { |
|
676 |
try(PlatformRecording p = newSnapshotClone("Dumped by user", null)) { |
|
677 |
p.dumpStopped(writeableUserPath); |
|
678 |
} |
|
679 |
} |
|
680 |
} |
|
681 |
||
682 |
public void dumpStopped(WriteableUserPath userPath) throws IOException { |
|
683 |
synchronized (recorder) { |
|
684 |
userPath.doPriviligedIO(() -> { |
|
685 |
try (ChunksChannel cc = new ChunksChannel(chunks); FileChannel fc = FileChannel.open(userPath.getReal(), StandardOpenOption.WRITE, StandardOpenOption.APPEND)) { |
|
686 |
cc.transferTo(fc); |
|
687 |
fc.force(true); |
|
688 |
} |
|
689 |
return null; |
|
690 |
}); |
|
691 |
} |
|
692 |
} |
|
693 |
||
694 |
public void filter(Instant begin, Instant end, Long maxSize) { |
|
695 |
synchronized (recorder) { |
|
696 |
List<RepositoryChunk> result = removeAfter(end, removeBefore(begin, new ArrayList<>(chunks))); |
|
697 |
if (maxSize != null) { |
|
698 |
if (begin != null && end == null) { |
|
699 |
result = reduceFromBeginning(maxSize, result); |
|
700 |
} else { |
|
701 |
result = reduceFromEnd(maxSize, result); |
|
702 |
} |
|
703 |
} |
|
704 |
int size = 0; |
|
705 |
for (RepositoryChunk r : result) { |
|
706 |
size += r.getSize(); |
|
707 |
r.use(); |
|
708 |
} |
|
709 |
this.size = size; |
|
710 |
for (RepositoryChunk r : chunks) { |
|
711 |
r.release(); |
|
712 |
} |
|
713 |
chunks.clear(); |
|
714 |
chunks.addAll(result); |
|
715 |
} |
|
716 |
} |
|
717 |
||
718 |
private static List<RepositoryChunk> removeBefore(Instant time, List<RepositoryChunk> input) { |
|
719 |
if (time == null) { |
|
720 |
return input; |
|
721 |
} |
|
722 |
List<RepositoryChunk> result = new ArrayList<>(input.size()); |
|
723 |
for (RepositoryChunk r : input) { |
|
724 |
if (!r.getEndTime().isBefore(time)) { |
|
725 |
result.add(r); |
|
726 |
} |
|
727 |
} |
|
728 |
return result; |
|
729 |
} |
|
730 |
||
731 |
private static List<RepositoryChunk> removeAfter(Instant time, List<RepositoryChunk> input) { |
|
732 |
if (time == null) { |
|
733 |
return input; |
|
734 |
} |
|
735 |
List<RepositoryChunk> result = new ArrayList<>(input.size()); |
|
736 |
for (RepositoryChunk r : input) { |
|
737 |
if (!r.getStartTime().isAfter(time)) { |
|
738 |
result.add(r); |
|
739 |
} |
|
740 |
} |
|
741 |
return result; |
|
742 |
} |
|
743 |
||
744 |
private static List<RepositoryChunk> reduceFromBeginning(Long maxSize, List<RepositoryChunk> input) { |
|
745 |
if (maxSize == null || input.isEmpty()) { |
|
746 |
return input; |
|
747 |
} |
|
748 |
List<RepositoryChunk> result = new ArrayList<>(input.size()); |
|
749 |
long total = 0; |
|
750 |
for (RepositoryChunk r : input) { |
|
751 |
total += r.getSize(); |
|
752 |
if (total > maxSize) { |
|
753 |
break; |
|
754 |
} |
|
755 |
result.add(r); |
|
756 |
} |
|
757 |
// always keep at least one chunk |
|
758 |
if (result.isEmpty()) { |
|
759 |
result.add(input.get(0)); |
|
760 |
} |
|
761 |
return result; |
|
762 |
} |
|
763 |
||
764 |
private static List<RepositoryChunk> reduceFromEnd(Long maxSize, List<RepositoryChunk> input) { |
|
765 |
Collections.reverse(input); |
|
766 |
List<RepositoryChunk> result = reduceFromBeginning(maxSize, input); |
|
767 |
Collections.reverse(result); |
|
768 |
return result; |
|
769 |
} |
|
770 |
||
771 |
public void setDumpOnExitDirectory(SafePath directory) { |
|
772 |
this.dumpOnExitDirectory = directory; |
|
773 |
} |
|
774 |
||
775 |
public SafePath getDumpOnExitDirectory() { |
|
776 |
return this.dumpOnExitDirectory; |
|
777 |
} |
|
50113 | 778 |
} |