author | mseledtsov |
Thu, 12 Sep 2019 11:32:03 -0700 | |
branch | JEP-349-branch |
changeset 58112 | e7754025004b |
parent 57690 | 9316d02dd4a5 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2016, 2019, 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.tool; |
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import java.io.IOException; |
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import java.io.PrintStream; |
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import java.nio.file.Path; |
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import java.time.Instant; |
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import java.time.ZoneOffset; |
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import java.time.format.DateTimeFormatter; |
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import java.util.ArrayList; |
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import java.util.Collections; |
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import java.util.Deque; |
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import java.util.HashMap; |
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import java.util.List; |
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import java.util.Locale; |
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import jdk.jfr.EventType; |
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import jdk.jfr.internal.MetadataDescriptor; |
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import jdk.jfr.internal.Type; |
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import jdk.jfr.internal.consumer.ChunkHeader; |
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57690
9316d02dd4a5
Add EventStream::setEndTime(...) and a first stab at priviliged access to local repository
egahlin
parents:
52850
diff
changeset
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import jdk.jfr.internal.consumer.FileAccess; |
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import jdk.jfr.internal.consumer.RecordingInput; |
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final class Summary extends Command { |
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private final DateTimeFormatter DATE_FORMAT = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss").withLocale(Locale.UK).withZone(ZoneOffset.UTC); |
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@Override |
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public String getName() { |
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return "summary"; |
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} |
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private static class Statistics { |
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Statistics(String name) { |
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this.name = name; |
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} |
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String name; |
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long count; |
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long size; |
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} |
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@Override |
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public List<String> getOptionSyntax() { |
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return Collections.singletonList("<file>"); |
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} |
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@Override |
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public void displayOptionUsage(PrintStream stream) { |
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stream.println(" <file> Location of the recording file (.jfr) to display information about"); |
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} |
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@Override |
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public String getDescription() { |
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return "Display general information about a recording file (.jfr)"; |
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} |
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@Override |
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public void execute(Deque<String> options) throws UserSyntaxException, UserDataException { |
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ensureMaxArgumentCount(options, 1); |
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Path p = getJFRInputFile(options); |
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try { |
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printInformation(p); |
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} catch (IOException e) { |
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couldNotReadError(p, e); |
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} |
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} |
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private void printInformation(Path p) throws IOException { |
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long totalDuration = 0; |
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long chunks = 0; |
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57690
9316d02dd4a5
Add EventStream::setEndTime(...) and a first stab at priviliged access to local repository
egahlin
parents:
52850
diff
changeset
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try (RecordingInput input = new RecordingInput(p.toFile(), FileAccess.UNPRIVILIGED)) { |
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ChunkHeader first = new ChunkHeader(input); |
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ChunkHeader ch = first; |
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String eventPrefix = Type.EVENT_NAME_PREFIX; |
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if (first.getMajor() == 1) { |
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eventPrefix = "com.oracle.jdk."; |
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} |
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HashMap<Long, Statistics> stats = new HashMap<>(); |
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stats.put(0L, new Statistics(eventPrefix + "Metadata")); |
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stats.put(1L, new Statistics(eventPrefix + "CheckPoint")); |
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int minWidth = 0; |
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while (true) { |
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long chunkEnd = ch.getEnd(); |
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MetadataDescriptor md = ch.readMetadata(); |
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for (EventType eventType : md.getEventTypes()) { |
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stats.computeIfAbsent(eventType.getId(), (e) -> new Statistics(eventType.getName())); |
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minWidth = Math.max(minWidth, eventType.getName().length()); |
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} |
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totalDuration += ch.getDurationNanos(); |
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chunks++; |
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input.position(ch.getEventStart()); |
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while (input.position() < chunkEnd) { |
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long pos = input.position(); |
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int size = input.readInt(); |
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long eventTypeId = input.readLong(); |
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Statistics s = stats.get(eventTypeId); |
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if (s != null) { |
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s.count++; |
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s.size += size; |
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} |
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input.position(pos + size); |
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} |
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if (ch.isLastChunk()) { |
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break; |
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} |
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ch = ch.nextHeader(); |
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} |
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println(); |
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long epochSeconds = first.getStartNanos() / 1_000_000_000L; |
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long adjustNanos = first.getStartNanos() - epochSeconds * 1_000_000_000L; |
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println(" Version: " + first.getMajor() + "." + first.getMinor()); |
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println(" Chunks: " + chunks); |
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println(" Start: " + DATE_FORMAT.format(Instant.ofEpochSecond(epochSeconds, adjustNanos)) + " (UTC)"); |
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println(" Duration: " + (totalDuration + 500_000_000) / 1_000_000_000 + " s"); |
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List<Statistics> statsList = new ArrayList<>(stats.values()); |
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Collections.sort(statsList, (u, v) -> Long.compare(v.count, u.count)); |
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println(); |
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String header = " Count Size (bytes) "; |
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String typeHeader = " Event Type"; |
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minWidth = Math.max(minWidth, typeHeader.length()); |
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println(typeHeader + pad(minWidth - typeHeader.length(), ' ') + header); |
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println(pad(minWidth + header.length(), '=')); |
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for (Statistics s : statsList) { |
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System.out.printf(" %-" + minWidth + "s%10d %12d\n", s.name, s.count, s.size); |
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} |
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} |
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} |
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private String pad(int count, char c) { |
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StringBuilder sb = new StringBuilder(); |
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for (int i = 0; i < count; i++) { |
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sb.append(c); |
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} |
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return sb.toString(); |
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} |
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} |