140 lines
4.9 KiB
Java
140 lines
4.9 KiB
Java
/*
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* Copyright (c) 2018, 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.PrintWriter;
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import java.nio.file.Path;
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import java.util.Collections;
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import java.util.Comparator;
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import java.util.Deque;
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import java.util.List;
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import jdk.jfr.consumer.RecordingFile;
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import jdk.jfr.internal.Type;
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import jdk.jfr.internal.consumer.RecordingInternals;
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final class Metadata extends Command {
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private static class TypeComparator implements Comparator<Type> {
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@Override
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public int compare(Type t1, Type t2) {
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int g1 = groupValue(t1);
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int g2 = groupValue(t2);
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if (g1 == g2) {
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String n1 = t1.getName();
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String n2 = t2.getName();
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String package1 = n1.substring(0, n1.lastIndexOf('.') + 1);
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String package2 = n2.substring(0, n2.lastIndexOf('.') + 1);
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if (package1.equals(package2)) {
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return n1.compareTo(n2);
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} else {
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// Ensure that jdk.* are printed first
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// This makes it easier to find user defined events at the end.
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if (Type.SUPER_TYPE_EVENT.equals(t1.getSuperType()) && !package1.equals(package2)) {
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if (package1.equals("jdk.jfr")) {
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return -1;
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}
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if (package2.equals("jdk.jfr")) {
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return 1;
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}
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}
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return package1.compareTo(package2);
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}
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} else {
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return Integer.compare(groupValue(t1), groupValue(t2));
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}
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}
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int groupValue(Type t) {
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String superType = t.getSuperType();
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if (superType == null) {
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return 1;
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}
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if (Type.SUPER_TYPE_ANNOTATION.equals(superType)) {
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return 3;
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}
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if (Type.SUPER_TYPE_SETTING.equals(superType)) {
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return 4;
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}
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if (Type.SUPER_TYPE_EVENT.equals(superType)) {
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return 5;
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}
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return 2; // reserved for enums in the future
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}
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}
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@Override
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public String getName() {
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return "metadata";
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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 String getDescription() {
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return "Display event metadata, such as labels, descriptions and field layout";
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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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Path file = getJFRInputFile(options);
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boolean showIds = false;
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int optionCount = options.size();
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while (optionCount > 0) {
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if (acceptOption(options, "--ids")) {
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showIds = true;
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}
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if (optionCount == options.size()) {
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// No progress made
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throw new UserSyntaxException("unknown option " + options.peek());
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}
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optionCount = options.size();
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}
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try (PrintWriter pw = new PrintWriter(System.out)) {
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PrettyWriter prettyWriter = new PrettyWriter(pw);
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prettyWriter.setShowIds(showIds);
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try (RecordingFile rf = new RecordingFile(file)) {
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List<Type> types = RecordingInternals.INSTANCE.readTypes(rf);
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Collections.sort(types, new TypeComparator());
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for (Type type : types) {
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prettyWriter.printType(type);
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}
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prettyWriter.flush(true);
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} catch (IOException ioe) {
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couldNotReadError(file, ioe);
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}
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}
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}
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}
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