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JDK 11 jdk.jfr.jmod - JFR Module
JDK 11 jdk.jfr.jmod is the JMOD file for JDK 11 JFR module.
JDK 11 JFR module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\jdk.jfr.jmod.
JDK 11 JFR module compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.
JDK 11 JFR module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\jdk.jfr.
You can click and view the content of each source code file in the list below.
✍: FYIcenter
⏎ jdk/jfr/consumer/RecordingFile.java
/* * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package jdk.jfr.consumer; import java.io.Closeable; import java.io.EOFException; import java.io.File; import java.io.IOException; import java.nio.file.NoSuchFileException; import java.nio.file.Path; import java.util.ArrayList; import java.util.HashSet; import java.util.List; import jdk.jfr.EventType; import jdk.jfr.internal.MetadataDescriptor; import jdk.jfr.internal.consumer.ChunkHeader; import jdk.jfr.internal.consumer.RecordingInput; /** * A recording file. * <p> * The following example shows how read and print all events in a recording file. * * <pre> * <code> * try (RecordingFile recordingFile = new RecordingFile(Paths.get("recording.jfr"))) { * while (recordingFile.hasMoreEvents()) { * RecordedEvent event = recordingFile.readEvent(); * System.out.println(event); * } * } * </code> * </pre> * * @since 9 */ public final class RecordingFile implements Closeable { private final File file; private RecordingInput input; private ChunkParser chunkParser; private RecordedEvent nextEvent; private boolean eof; /** * Creates a recording file. * * @param file the path of the file to open, not {@code null} * @throws IOException if it's not a valid recording file, or an I/O error * occurred * @throws NoSuchFileException if the {@code file} can't be located * * @throws SecurityException if a security manager exists and its * {@code checkRead} method denies read access to the file. */ public RecordingFile(Path file) throws IOException { this.file = file.toFile(); this.input = new RecordingInput(this.file); findNext(); } /** * Reads the next event in the recording. * * @return the next event, not {@code null} * * @throws EOFException if no more events exist in the recording file * @throws IOException if an I/O error occurs. * * @see #hasMoreEvents() */ public RecordedEvent readEvent() throws IOException { if (eof) { ensureOpen(); throw new EOFException(); } RecordedEvent event = nextEvent; nextEvent = chunkParser.readEvent(); if (nextEvent == null) { findNext(); } return event; } /** * Returns {@code true} if unread events exist in the recording file, * {@code false} otherwise. * * @return {@code true} if unread events exist in the recording, {@code false} * otherwise. */ public boolean hasMoreEvents() { return !eof; } /** * Returns a list of all event types in this recording. * * @return a list of event types, not {@code null} * @throws IOException if an I/O error occurred while reading from the file * * @see #hasMoreEvents() */ public List<EventType> readEventTypes() throws IOException { ensureOpen(); List<EventType> types = new ArrayList<>(); HashSet<Long> foundIds = new HashSet<>(); try (RecordingInput ri = new RecordingInput(file)) { ChunkHeader ch = new ChunkHeader(ri); aggregateTypeForChunk(ch, types, foundIds); while (!ch.isLastChunk()) { ch = ch.nextHeader(); aggregateTypeForChunk(ch, types, foundIds); } } return types; } private static void aggregateTypeForChunk(ChunkHeader ch, List<EventType> types, HashSet<Long> foundIds) throws IOException { MetadataDescriptor m = ch.readMetadata(); for (EventType t : m.getEventTypes()) { if (!foundIds.contains(t.getId())) { types.add(t); foundIds.add(t.getId()); } } } /** * Closes this recording file and releases any system resources that are * associated with it. * * @throws IOException if an I/O error occurred */ public void close() throws IOException { if (input != null) { eof = true; input.close(); chunkParser = null; input = null; nextEvent = null; } } /** * Returns a list of all events in a file. * <p> * This method is intended for simple cases where it's convenient to read all * events in a single operation. It isn't intended for reading large files. * * @param path the path to the file, not {@code null} * * @return the events from the file as a {@code List} object; whether the * {@code List} is modifiable or not is implementation dependent and * therefore not specified, not {@code null} * * @throws IOException if an I/O error occurred, it's not a Flight Recorder * file or a version of a JFR file that can't be parsed * * @throws SecurityException if a security manager exists and its * {@code checkRead} method denies read access to the file. */ public static List<RecordedEvent> readAllEvents(Path path) throws IOException { try (RecordingFile r = new RecordingFile(path)) { List<RecordedEvent> list = new ArrayList<>(); while (r.hasMoreEvents()) { list.add(r.readEvent()); } return list; } } // either sets next to an event or sets eof to true private void findNext() throws IOException { while (nextEvent == null) { if (chunkParser == null) { chunkParser = new ChunkParser(input); } else if (!chunkParser.isLastChunk()) { chunkParser = chunkParser.nextChunkParser(); } else { eof = true; return; } nextEvent = chunkParser.readEvent(); } } private void ensureOpen() throws IOException { if (input == null) { throw new IOException("Stream Closed"); } } }
⏎ jdk/jfr/consumer/RecordingFile.java
Or download all of them as a single archive file:
File name: jdk.jfr-11.0.1-src.zip File size: 237632 bytes Release date: 2018-11-04 Download
⇒ JDK 11 jdk.jlink.jmod - JLink Tool
2020-06-30, 43693👍, 0💬
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