| /* |
| * 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.internal.tool; |
| |
| import java.io.PrintWriter; |
| import java.util.List; |
| |
| import jdk.jfr.EventType; |
| import jdk.jfr.ValueDescriptor; |
| import jdk.jfr.consumer.RecordedEvent; |
| import jdk.jfr.consumer.RecordedFrame; |
| import jdk.jfr.consumer.RecordedObject; |
| |
| final class XMLWriter extends EventPrintWriter { |
| public XMLWriter(PrintWriter destination) { |
| super(destination); |
| } |
| |
| @Override |
| protected void printBegin() { |
| println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); |
| println("<recording xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">"); |
| indent(); |
| printIndent(); |
| println("<events>"); |
| indent(); |
| } |
| |
| @Override |
| protected void printEnd() { |
| retract(); |
| printIndent(); |
| println("</events>"); |
| retract(); |
| println("</recording>"); |
| } |
| |
| @Override |
| protected void print(List<RecordedEvent> events) { |
| for (RecordedEvent event : events) { |
| printEvent(event); |
| } |
| } |
| |
| private void printEvent(RecordedEvent event) { |
| EventType type = event.getEventType(); |
| printIndent(); |
| print("<event"); |
| printAttribute("type", type.getName()); |
| print(">"); |
| println(); |
| indent(); |
| for (ValueDescriptor v : event.getFields()) { |
| printValueDescriptor(v, getValue(event, v), -1); |
| } |
| retract(); |
| printIndent(); |
| println("</event>"); |
| println(); |
| } |
| |
| private void printAttribute(String name, String value) { |
| print(" ", name, "=\"", value, "\""); |
| } |
| |
| public void printObject(RecordedObject struct) { |
| println(); |
| indent(); |
| for (ValueDescriptor v : struct.getFields()) { |
| printValueDescriptor(v, getValue(struct, v), -1); |
| } |
| retract(); |
| } |
| |
| private void printArray(ValueDescriptor v, Object[] array) { |
| println(); |
| indent(); |
| int depth = 0; |
| for (int index = 0; index < array.length; index++) { |
| Object arrayElement = array[index]; |
| if (!(arrayElement instanceof RecordedFrame) || depth < getStackDepth()) { |
| printValueDescriptor(v, array[index], index); |
| } |
| depth++; |
| } |
| retract(); |
| } |
| |
| private void printValueDescriptor(ValueDescriptor vd, Object value, int index) { |
| boolean arrayElement = index != -1; |
| String name = arrayElement ? null : vd.getName(); |
| if (vd.isArray() && !arrayElement) { |
| if (printBeginElement("array", name, value, index)) { |
| printArray(vd, (Object[]) value); |
| printIndent(); |
| printEndElement("array"); |
| } |
| return; |
| } |
| if (!vd.getFields().isEmpty()) { |
| if (printBeginElement("struct", name, value, index)) { |
| printObject((RecordedObject) value); |
| printIndent(); |
| printEndElement("struct"); |
| } |
| return; |
| } |
| if (printBeginElement("value", name, value, index)) { |
| printEscaped(String.valueOf(value)); |
| printEndElement("value"); |
| } |
| } |
| |
| private boolean printBeginElement(String elementName, String name, Object value, int index) { |
| printIndent(); |
| print("<", elementName); |
| if (name != null) { |
| printAttribute("name", name); |
| } |
| if (index != -1) { |
| printAttribute("index", Integer.toString(index)); |
| } |
| if (value == null) { |
| printAttribute("xsi:nil", "true"); |
| println("/>"); |
| return false; |
| } |
| if (value.getClass().isArray()) { |
| Object[] array = (Object[]) value; |
| printAttribute("size", Integer.toString(array.length)); |
| } |
| print(">"); |
| return true; |
| } |
| |
| private void printEndElement(String elementName) { |
| print("</"); |
| print(elementName); |
| println(">"); |
| } |
| |
| private void printEscaped(String text) { |
| for (int i = 0; i < text.length(); i++) { |
| printEscaped(text.charAt(i)); |
| } |
| } |
| |
| private void printEscaped(char c) { |
| if (c == 34) { |
| print("""); |
| return; |
| } |
| if (c == 38) { |
| print("&"); |
| return; |
| } |
| if (c == 39) { |
| print("'"); |
| return; |
| } |
| if (c == 60) { |
| print("<"); |
| return; |
| } |
| if (c == 62) { |
| print(">"); |
| return; |
| } |
| if (c > 0x7F) { |
| print("&#"); |
| print((int) c); |
| print(';'); |
| return; |
| } |
| print(c); |
| } |
| } |