| /******************************************************************************* |
| * Copyright (c) 2016 Ericsson |
| * |
| * All rights reserved. This program and the accompanying materials are made |
| * available under the terms of the Eclipse Public License 2.0 which |
| * accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| *******************************************************************************/ |
| |
| package org.eclipse.tracecompass.tmf.ctf.core.event; |
| |
| import java.util.Collections; |
| import java.util.Map; |
| |
| import org.eclipse.jdt.annotation.NonNullByDefault; |
| import org.eclipse.jdt.annotation.Nullable; |
| import org.eclipse.tracecompass.ctf.core.event.IEventDeclaration; |
| import org.eclipse.tracecompass.ctf.core.event.IEventDefinition; |
| import org.eclipse.tracecompass.ctf.core.event.types.ICompositeDefinition; |
| |
| /** |
| * Null event definition, used as a poison pill |
| * |
| * @author Matthew Khouzam |
| */ |
| @NonNullByDefault |
| final class NullEventDefinition implements IEventDefinition { |
| |
| public static final NullEventDefinition INSTANCE = new NullEventDefinition(); |
| |
| private NullEventDefinition() { |
| } |
| |
| @Override |
| public long getTimestamp() { |
| return 0; |
| } |
| |
| @Override |
| public @Nullable ICompositeDefinition getPacketContext() { |
| return null; |
| } |
| |
| @Override |
| public Map<String, Object> getPacketAttributes() { |
| return Collections.emptyMap(); |
| } |
| |
| @Override |
| public @Nullable ICompositeDefinition getFields() { |
| return null; |
| } |
| |
| @Override |
| public @Nullable ICompositeDefinition getEventHeader() { |
| return null; |
| } |
| |
| @Override |
| public @Nullable ICompositeDefinition getEventContext() { |
| return null; |
| } |
| |
| @Override |
| public @Nullable IEventDeclaration getDeclaration() { |
| return null; |
| } |
| |
| @Override |
| public @Nullable ICompositeDefinition getContext() { |
| return null; |
| } |
| |
| @Override |
| public int getCPU() { |
| return IEventDefinition.UNKNOWN_CPU; |
| } |
| } |