| /* |
| * 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 static jdk.jfr.internal.EventInstrumentation.FIELD_DURATION; |
| |
| import java.io.IOException; |
| import java.util.List; |
| |
| import jdk.jfr.EventType; |
| import jdk.jfr.ValueDescriptor; |
| import jdk.jfr.internal.consumer.RecordingInput; |
| |
| /** |
| * Parses an event and returns a {@link RecordedEvent}. |
| * |
| */ |
| final class EventParser extends Parser { |
| private final Parser[] parsers; |
| private final EventType eventType; |
| private final TimeConverter timeConverter; |
| private final boolean hasDuration; |
| private final List<ValueDescriptor> valueDescriptors; |
| |
| EventParser(TimeConverter timeConverter, EventType type, Parser[] parsers) { |
| this.timeConverter = timeConverter; |
| this.parsers = parsers; |
| this.eventType = type; |
| this.hasDuration = type.getField(FIELD_DURATION) != null; |
| this.valueDescriptors = type.getFields(); |
| } |
| |
| @Override |
| public Object parse(RecordingInput input) throws IOException { |
| Object[] values = new Object[parsers.length]; |
| for (int i = 0; i < parsers.length; i++) { |
| values[i] = parsers[i].parse(input); |
| } |
| Long startTicks = (Long) values[0]; |
| long startTime = timeConverter.convertTimestamp(startTicks); |
| if (hasDuration) { |
| long durationTicks = (Long) values[1]; |
| long endTime = timeConverter.convertTimestamp(startTicks + durationTicks); |
| return new RecordedEvent(eventType, valueDescriptors, values, startTime, endTime, timeConverter); |
| } else { |
| return new RecordedEvent(eventType, valueDescriptors, values, startTime, startTime, timeConverter); |
| } |
| } |
| } |