--- a/src/jdk.jfr/share/classes/jdk/jfr/consumer/ChunkParser.java Wed Oct 30 16:14:56 2019 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,174 +0,0 @@
-/*
- * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation. Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package jdk.jfr.consumer;
-
-import java.io.IOException;
-import java.util.Collection;
-import java.util.List;
-
-import jdk.jfr.EventType;
-import jdk.jfr.internal.LogLevel;
-import jdk.jfr.internal.LogTag;
-import jdk.jfr.internal.Logger;
-import jdk.jfr.internal.MetadataDescriptor;
-import jdk.jfr.internal.Type;
-import jdk.jfr.internal.consumer.ChunkHeader;
-import jdk.jfr.internal.consumer.RecordingInput;
-
-/**
- * Parses a chunk.
- *
- */
-final class ChunkParser {
- private static final long CONSTANT_POOL_TYPE_ID = 1;
- private final RecordingInput input;
- private final LongMap<Parser> parsers;
- private final ChunkHeader chunkHeader;
- private final long absoluteChunkEnd;
- private final MetadataDescriptor metadata;
- private final LongMap<Type> typeMap;
- private final TimeConverter timeConverter;
-
- public ChunkParser(RecordingInput input) throws IOException {
- this(new ChunkHeader(input));
- }
-
- private ChunkParser(ChunkHeader header) throws IOException {
- this.input = header.getInput();
- this.chunkHeader = header;
- this.metadata = header.readMetadata();
- this.absoluteChunkEnd = header.getEnd();
- this.timeConverter = new TimeConverter(chunkHeader, metadata.getGMTOffset());
-
- ParserFactory factory = new ParserFactory(metadata, timeConverter);
- LongMap<ConstantMap> constantPools = factory.getConstantPools();
- parsers = factory.getParsers();
- typeMap = factory.getTypeMap();
-
- fillConstantPools(parsers, constantPools);
- constantPools.forEach(ConstantMap::setIsResolving);
- constantPools.forEach(ConstantMap::resolve);
- constantPools.forEach(ConstantMap::setResolved);
-
- input.position(chunkHeader.getEventStart());
- }
-
- public RecordedEvent readEvent() throws IOException {
- while (input.position() < absoluteChunkEnd) {
- long pos = input.position();
- int size = input.readInt();
- if (size == 0) {
- throw new IOException("Event can't have zero size");
- }
- long typeId = input.readLong();
- if (typeId > CONSTANT_POOL_TYPE_ID) { // also skips metadata (id=0)
- Parser ep = parsers.get(typeId);
- if (ep instanceof EventParser) {
- return (RecordedEvent) ep.parse(input);
- }
- }
- input.position(pos + size);
- }
- return null;
- }
-
- private void fillConstantPools(LongMap<Parser> typeParser, LongMap<ConstantMap> constantPools) throws IOException {
- long nextCP = chunkHeader.getAbsoluteChunkStart();
- long deltaToNext = chunkHeader.getConstantPoolPosition();
- while (deltaToNext != 0) {
- nextCP += deltaToNext;
- input.position(nextCP);
- final long position = nextCP;
- int size = input.readInt(); // size
- long typeId = input.readLong();
- if (typeId != CONSTANT_POOL_TYPE_ID) {
- throw new IOException("Expected check point event (id = 1) at position " + nextCP + ", but found type id = " + typeId);
- }
- input.readLong(); // timestamp
- input.readLong(); // duration
- deltaToNext = input.readLong();
- final long delta = deltaToNext;
- boolean flush = input.readBoolean();
- int poolCount = input.readInt();
- Logger.log(LogTag.JFR_SYSTEM_PARSER, LogLevel.TRACE, () -> {
- return "New constant pool: startPosition=" + position + ", size=" + size + ", deltaToNext=" + delta + ", flush=" + flush + ", poolCount=" + poolCount;
- });
-
- for (int i = 0; i < poolCount; i++) {
- long id = input.readLong(); // type id
- ConstantMap pool = constantPools.get(id);
- Type type = typeMap.get(id);
- if (pool == null) {
- Logger.log(LogTag.JFR_SYSTEM_PARSER, LogLevel.INFO, "Found constant pool(" + id + ") that is never used");
- if (type == null) {
- throw new IOException("Error parsing constant pool type " + getName(id) + " at position " + input.position() + " at check point between [" + nextCP + ", " + nextCP + size + "]");
- }
- pool = new ConstantMap(ObjectFactory.create(type, timeConverter), type.getName());
- constantPools.put(type.getId(), pool);
- }
- Parser parser = typeParser.get(id);
- if (parser == null) {
- throw new IOException("Could not find constant pool type with id = " + id);
- }
- try {
- int count = input.readInt();
- Logger.log(LogTag.JFR_SYSTEM_PARSER, LogLevel.TRACE, () -> "Constant: " + getName(id) + "[" + count + "]");
- for (int j = 0; j < count; j++) {
- long key = input.readLong();
- Object value = parser.parse(input);
- pool.put(key, value);
- }
- } catch (Exception e) {
- throw new IOException("Error parsing constant pool type " + getName(id) + " at position " + input.position() + " at check point between [" + nextCP + ", " + nextCP + size + "]", e);
- }
- }
- if (input.position() != nextCP + size) {
- throw new IOException("Size of check point event doesn't match content");
- }
- }
- }
-
- private String getName(long id) {
- Type type = typeMap.get(id);
- return type == null ? ("unknown(" + id + ")") : type.getName();
- }
-
- public Collection<Type> getTypes() {
- return metadata.getTypes();
- }
-
- public List<EventType> getEventTypes() {
- return metadata.getEventTypes();
- }
-
- public boolean isLastChunk() {
- return chunkHeader.isLastChunk();
- }
-
- public ChunkParser nextChunkParser() throws IOException {
- return new ChunkParser(chunkHeader.nextHeader());
- }
-}