| /* |
| * Copyright (c) 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.consumer; |
| |
| import java.time.ZoneId; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import jdk.jfr.EventType; |
| import jdk.jfr.ValueDescriptor; |
| |
| public final class ObjectContext { |
| private final Map<ValueDescriptor, ObjectContext> contextLookup; |
| private final TimeConverter timeConverter; |
| |
| public final EventType eventType; |
| public final List<ValueDescriptor> fields; |
| |
| ObjectContext(EventType eventType, List<ValueDescriptor> fields, TimeConverter timeConverter) { |
| this.contextLookup = new HashMap<>(); |
| this.eventType = eventType; |
| this.fields = fields; |
| this.timeConverter = timeConverter; |
| } |
| |
| private ObjectContext(ObjectContext parent, ValueDescriptor descriptor) { |
| this.eventType = parent.eventType; |
| this.contextLookup = parent.contextLookup; |
| this.timeConverter = parent.timeConverter; |
| this.fields = descriptor.getFields(); |
| } |
| |
| public ObjectContext getInstance(ValueDescriptor descriptor) { |
| ObjectContext context = contextLookup.get(descriptor); |
| if (context == null) { |
| context = new ObjectContext(this, descriptor); |
| contextLookup.put(descriptor, context); |
| } |
| return context; |
| } |
| |
| public long convertTimestamp(long ticks) { |
| return timeConverter.convertTimestamp(ticks); |
| } |
| |
| public long convertTimespan(long ticks) { |
| return timeConverter.convertTimespan(ticks); |
| } |
| |
| public ZoneId getZoneOffset() { |
| return timeConverter.getZoneOffset(); |
| } |
| } |