--- a/src/jdk.jfr/share/classes/jdk/jfr/consumer/ParserFactory.java Wed Oct 30 16:14:56 2019 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,303 +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.ArrayList;
-import java.util.List;
-import java.util.Objects;
-
-import jdk.jfr.EventType;
-import jdk.jfr.ValueDescriptor;
-import jdk.jfr.internal.MetadataDescriptor;
-import jdk.jfr.internal.PrivateAccess;
-import jdk.jfr.internal.Type;
-import jdk.jfr.internal.consumer.RecordingInput;
-
-/**
- * Class that create parsers suitable for reading events and constant pools
- */
-final class ParserFactory {
- private final LongMap<Parser> parsers = new LongMap<>();
- private final TimeConverter timeConverter;
- private final LongMap<Type> types = new LongMap<>();
- private final LongMap<ConstantMap> constantPools;
-
- public ParserFactory(MetadataDescriptor metadata, TimeConverter timeConverter) throws IOException {
- this.constantPools = new LongMap<>();
- this.timeConverter = timeConverter;
- for (Type t : metadata.getTypes()) {
- types.put(t.getId(), t);
- }
- for (Type t : types) {
- if (!t.getFields().isEmpty()) { // Avoid primitives
- CompositeParser cp = createCompositeParser(t);
- if (t.isSimpleType()) { // Reduce to nested parser
- parsers.put(t.getId(), cp.parsers[0]);
- }
-
- }
- }
- // Override event types with event parsers
- for (EventType t : metadata.getEventTypes()) {
- parsers.put(t.getId(), createEventParser(t));
- }
- }
-
- public LongMap<Parser> getParsers() {
- return parsers;
- }
-
- public LongMap<ConstantMap> getConstantPools() {
- return constantPools;
- }
-
- public LongMap<Type> getTypeMap() {
- return types;
- }
-
- private EventParser createEventParser(EventType eventType) throws IOException {
- List<Parser> parsers = new ArrayList<Parser>();
- for (ValueDescriptor f : eventType.getFields()) {
- parsers.add(createParser(f));
- }
- return new EventParser(timeConverter, eventType, parsers.toArray(new Parser[0]));
- }
-
- private Parser createParser(ValueDescriptor v) throws IOException {
- boolean constantPool = PrivateAccess.getInstance().isConstantPool(v);
- if (v.isArray()) {
- Type valueType = PrivateAccess.getInstance().getType(v);
- ValueDescriptor element = PrivateAccess.getInstance().newValueDescriptor(v.getName(), valueType, v.getAnnotationElements(), 0, constantPool, null);
- return new ArrayParser(createParser(element));
- }
- long id = v.getTypeId();
- Type type = types.get(id);
- if (type == null) {
- throw new IOException("Type '" + v.getTypeName() + "' is not defined");
- }
- if (constantPool) {
- ConstantMap pool = constantPools.get(id);
- if (pool == null) {
- pool = new ConstantMap(ObjectFactory.create(type, timeConverter), type.getName());
- constantPools.put(id, pool);
- }
- return new ConstantMapValueParser(pool);
- }
- Parser parser = parsers.get(id);
- if (parser == null) {
- if (!v.getFields().isEmpty()) {
- return createCompositeParser(type);
- } else {
- return registerParserType(type, createPrimitiveParser(type));
- }
- }
- return parser;
- }
-
- private Parser createPrimitiveParser(Type type) throws IOException {
- switch (type.getName()) {
- case "int":
- return new IntegerParser();
- case "long":
- return new LongParser();
- case "float":
- return new FloatParser();
- case "double":
- return new DoubleParser();
- case "char":
- return new CharacterParser();
- case "boolean":
- return new BooleanParser();
- case "short":
- return new ShortParser();
- case "byte":
- return new ByteParser();
- case "java.lang.String":
- ConstantMap pool = new ConstantMap(ObjectFactory.create(type, timeConverter), type.getName());
- constantPools.put(type.getId(), pool);
- return new StringParser(pool);
- default:
- throw new IOException("Unknown primitive type " + type.getName());
- }
- }
-
- private Parser registerParserType(Type t, Parser parser) {
- Parser p = parsers.get(t.getId());
- // check if parser exists (known type)
- if (p != null) {
- return p;
- }
- parsers.put(t.getId(), parser);
- return parser;
- }
-
- private CompositeParser createCompositeParser(Type type) throws IOException {
- List<ValueDescriptor> vds = type.getFields();
- Parser[] parsers = new Parser[vds.size()];
- CompositeParser composite = new CompositeParser(parsers);
- // need to pre-register so recursive types can be handled
- registerParserType(type, composite);
-
- int index = 0;
- for (ValueDescriptor vd : vds) {
- parsers[index++] = createParser(vd);
- }
- return composite;
- }
-
- private static final class BooleanParser extends Parser {
- @Override
- public Object parse(RecordingInput input) throws IOException {
- return input.readBoolean() ? Boolean.TRUE : Boolean.FALSE;
- }
- }
-
- private static final class ByteParser extends Parser {
- @Override
- public Object parse(RecordingInput input) throws IOException {
- return Byte.valueOf(input.readByte());
- }
- }
-
- private static final class LongParser extends Parser {
- @Override
- public Object parse(RecordingInput input) throws IOException {
- return Long.valueOf(input.readLong());
- }
- }
-
- private static final class IntegerParser extends Parser {
- @Override
- public Object parse(RecordingInput input) throws IOException {
- return Integer.valueOf(input.readInt());
- }
- }
-
- private static final class ShortParser extends Parser {
- @Override
- public Object parse(RecordingInput input) throws IOException {
- return Short.valueOf(input.readShort());
- }
- }
-
- private static final class CharacterParser extends Parser {
- @Override
- public Object parse(RecordingInput input) throws IOException {
- return Character.valueOf(input.readChar());
- }
- }
-
- private static final class FloatParser extends Parser {
- @Override
- public Object parse(RecordingInput input) throws IOException {
- return Float.valueOf(input.readFloat());
- }
- }
-
- private static final class DoubleParser extends Parser {
- @Override
- public Object parse(RecordingInput input) throws IOException {
- return Double.valueOf(input.readDouble());
- }
- }
-
- private static final class StringParser extends Parser {
- private final ConstantMap stringConstantMap;
- private String last;
-
- StringParser(ConstantMap stringConstantMap) {
- this.stringConstantMap = stringConstantMap;
- }
-
- @Override
- public Object parse(RecordingInput input) throws IOException {
- String s = parseEncodedString(input);
- if (!Objects.equals(s, last)) {
- last = s;
- }
- return last;
- }
-
- private String parseEncodedString(RecordingInput input) throws IOException {
- byte encoding = input.readByte();
- if (encoding == RecordingInput.STRING_ENCODING_CONSTANT_POOL) {
- long id = input.readLong();
- return (String) stringConstantMap.get(id);
- } else {
- return input.readEncodedString(encoding);
- }
- }
- }
-
- private final static class ArrayParser extends Parser {
- private final Parser elementParser;
-
- public ArrayParser(Parser elementParser) {
- this.elementParser = elementParser;
- }
-
- @Override
- public Object parse(RecordingInput input) throws IOException {
- final int size = input.readInt();
- final Object[] array = new Object[size];
- for (int i = 0; i < size; i++) {
- array[i] = elementParser.parse(input);
- }
- return array;
- }
- }
-
- private final static class CompositeParser extends Parser {
- private final Parser[] parsers;
-
- public CompositeParser(Parser[] valueParsers) {
- this.parsers = valueParsers;
- }
-
- @Override
- public Object parse(RecordingInput input) throws IOException {
- final Object[] values = new Object[parsers.length];
- for (int i = 0; i < values.length; i++) {
- values[i] = parsers[i].parse(input);
- }
- return values;
- }
- }
-
- private static final class ConstantMapValueParser extends Parser {
- private final ConstantMap pool;
-
- ConstantMapValueParser(ConstantMap pool) {
- this.pool = pool;
- }
-
- @Override
- public Object parse(RecordingInput input) throws IOException {
- return pool.get(input.readLong());
- }
- }
-}