| /* |
| * Copyright (c) 2016, 2019, 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.internal; |
| |
| import java.io.DataOutput; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Locale; |
| import java.util.TimeZone; |
| |
| import jdk.jfr.EventType; |
| import jdk.jfr.internal.consumer.RecordingInput; |
| |
| /** |
| * Metadata about a chunk |
| */ |
| public final class MetadataDescriptor { |
| |
| static final class Attribute { |
| final String name; |
| final String value; |
| |
| private Attribute(String name, String value) { |
| this.name = name; |
| this.value = value; |
| } |
| } |
| |
| static final class Element { |
| final String name; |
| final List<Element> elements = new ArrayList<>(); |
| final List<Attribute> attributes = new ArrayList<>(); |
| |
| Element(String name) { |
| this.name = name; |
| } |
| |
| long longValue(String name) { |
| String v = attribute(name); |
| if (v != null) |
| return Long.parseLong(v); |
| else |
| throw new IllegalArgumentException(name); |
| } |
| |
| String attribute(String name) { |
| for (Attribute a : attributes) { |
| if (a.name.equals(name)) { |
| return a.value; |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder sb = new StringBuilder(); |
| try { |
| prettyPrintXML(sb, "", this); |
| } catch (IOException e) { |
| // should not happen |
| } |
| return sb.toString(); |
| } |
| |
| long attribute(String name, long defaultValue) { |
| String text = attribute(name); |
| if (text == null) { |
| return defaultValue; |
| } |
| return Long.parseLong(text); |
| } |
| |
| String attribute(String name, String defaultValue) { |
| String text = attribute(name); |
| if (text == null) { |
| return defaultValue; |
| } |
| return text; |
| } |
| |
| List<Element> elements(String... names) { |
| List<Element> filteredElements = new ArrayList<>(); |
| for (String name : names) { |
| for (Element e : elements) { |
| if (e.name.equals(name)) { |
| filteredElements.add(e); |
| } |
| } |
| } |
| return filteredElements; |
| } |
| |
| void add(Element element) { |
| elements.add(element); |
| } |
| |
| void addAttribute(String name, Object value) { |
| attributes.add(new Attribute(name, String.valueOf(value))); |
| } |
| |
| Element newChild(String name) { |
| Element e = new Element(name); |
| elements.add(e); |
| return e; |
| } |
| |
| public void addArrayAttribute(Element element, String name, Object value) { |
| String typeName = value.getClass().getComponentType().getName(); |
| switch (typeName) { |
| case "int": |
| int[] ints = (int[]) value; |
| for (int i = 0; i < ints.length; i++) { |
| addAttribute(name + "-" + i , ints[i]); |
| } |
| break; |
| case "long": |
| long[] longs = (long[]) value; |
| for (int i = 0; i < longs.length; i++) { |
| addAttribute(name + "-" + i , longs[i]); |
| } |
| break; |
| case "float": |
| float[] floats = (float[]) value; |
| for (int i = 0; i < floats.length; i++) { |
| addAttribute(name + "-" + i , floats[i]); |
| } |
| break; |
| |
| case "double": |
| double[] doubles = (double[]) value; |
| for (int i = 0; i < doubles.length; i++) { |
| addAttribute(name + "-" + i , doubles[i]); |
| } |
| break; |
| case "short": |
| short[] shorts = (short[]) value; |
| for (int i = 0; i < shorts.length; i++) { |
| addAttribute(name + "-" + i , shorts[i]); |
| } |
| break; |
| case "char": |
| char[] chars = (char[]) value; |
| for (int i = 0; i < chars.length; i++) { |
| addAttribute(name + "-" + i , chars[i]); |
| } |
| break; |
| case "byte": |
| byte[] bytes = (byte[]) value; |
| for (int i = 0; i < bytes.length; i++) { |
| addAttribute(name + "-" + i , bytes[i]); |
| } |
| break; |
| case "boolean": |
| boolean[] booleans = (boolean[]) value; |
| for (int i = 0; i < booleans.length; i++) { |
| addAttribute(name + "-" + i , booleans[i]); |
| } |
| break; |
| case "java.lang.String": |
| String[] strings = (String[]) value; |
| for (int i = 0; i < strings.length; i++) { |
| addAttribute(name + "-" + i , strings[i]); |
| } |
| break; |
| default: |
| throw new InternalError("Array type of " + typeName + " is not supported"); |
| } |
| } |
| } |
| |
| static final String ATTRIBUTE_ID = "id"; |
| static final String ATTRIBUTE_SIMPLE_TYPE = "simpleType"; |
| static final String ATTRIBUTE_GMT_OFFSET = "gmtOffset"; |
| static final String ATTRIBUTE_LOCALE = "locale"; |
| static final String ELEMENT_TYPE = "class"; |
| static final String ELEMENT_SETTING = "setting"; |
| static final String ELEMENT_ANNOTATION = "annotation"; |
| static final String ELEMENT_FIELD = "field"; |
| static final String ATTRIBUTE_SUPER_TYPE = "superType"; |
| static final String ATTRIBUTE_TYPE_ID = "class"; |
| static final String ATTRIBUTE_DIMENSION = "dimension"; |
| static final String ATTRIBUTE_NAME = "name"; |
| static final String ATTRIBUTE_CONSTANT_POOL = "constantPool"; |
| static final String ATTRIBUTE_DEFAULT_VALUE = "defaultValue"; |
| |
| final List<EventType> eventTypes = new ArrayList<>(); |
| final Collection<Type> types = new ArrayList<>(); |
| long gmtOffset; |
| String locale; |
| Element root; |
| public long metadataId; |
| |
| // package private |
| MetadataDescriptor() { |
| } |
| |
| private static void prettyPrintXML(Appendable sb, String indent, Element e) throws IOException { |
| sb.append(indent + "<" + e.name); |
| for (Attribute a : e.attributes) { |
| sb.append(" ").append(a.name).append("=\"").append(a.value).append("\""); |
| } |
| if (e.elements.size() == 0) { |
| sb.append("/"); |
| } |
| sb.append(">\n"); |
| for (Element child : e.elements) { |
| prettyPrintXML(sb, indent + " ", child); |
| } |
| if (e.elements.size() != 0) { |
| sb.append(indent).append("</").append(e.name).append(">\n"); |
| } |
| } |
| |
| public Collection<Type> getTypes() { |
| return types; |
| } |
| |
| public List<EventType> getEventTypes() { |
| return eventTypes; |
| } |
| |
| public int getGMTOffset() { |
| return (int) gmtOffset; |
| } |
| |
| public String getLocale() { |
| return locale; |
| } |
| |
| public static MetadataDescriptor read(RecordingInput input) throws IOException { |
| MetadataReader r = new MetadataReader(input); |
| return r.getDescriptor(); |
| } |
| |
| static void write(List<Type> types, DataOutput output) throws IOException { |
| MetadataDescriptor m = new MetadataDescriptor(); |
| m.locale = Locale.getDefault().toString(); |
| m.gmtOffset = TimeZone.getDefault().getRawOffset(); |
| m.types.addAll(types); |
| MetadataWriter w = new MetadataWriter(m); |
| w.writeBinary(output); |
| } |
| |
| @Override |
| public String toString() { |
| return root.toString(); |
| } |
| } |