| /******************************************************************************* |
| * Copyright (c) 2013, 2014 École Polytechnique de Montréal |
| * |
| * 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 |
| * |
| * Contributors: |
| * Geneviève Bastien - Initial implementation and API |
| *******************************************************************************/ |
| |
| package org.eclipse.tracecompass.tmf.core.event.matching; |
| |
| import java.util.Objects; |
| |
| import org.eclipse.jdt.annotation.NonNull; |
| import org.eclipse.tracecompass.tmf.core.event.ITmfEvent; |
| import org.eclipse.tracecompass.tmf.core.timestamp.ITmfTimestamp; |
| import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace; |
| |
| /** |
| * Represents a dependency (match) between two events, where source event leads |
| * to destination event |
| * |
| * @author Geneviève Bastien |
| */ |
| public class TmfEventDependency { |
| |
| private final DependencyEvent fSource; |
| private final DependencyEvent fDestination; |
| |
| /** |
| * A stripped down class representing an event from a trace at a certain |
| * timestamp. This contains only the required information for event matching |
| * between traces, without the extra fields that take up a lot of memory. |
| * |
| * @since 3.3 |
| */ |
| public static class DependencyEvent { |
| private final @NonNull ITmfTrace fTrace; |
| private final ITmfTimestamp fTimestamp; |
| |
| /** |
| * Constructor |
| * |
| * @param event |
| * The complete trace event to use for this event |
| */ |
| public DependencyEvent(ITmfEvent event) { |
| fTrace = event.getTrace(); |
| fTimestamp = event.getTimestamp(); |
| } |
| |
| /** |
| * Get the trace this event representation is from |
| * |
| * @return The trace of this event |
| */ |
| public ITmfTrace getTrace() { |
| return fTrace; |
| } |
| |
| /** |
| * Get the timestamp of this event representation, in nanoseconds |
| * |
| * @return The timestamp of the event, in nanoseconds |
| */ |
| public ITmfTimestamp getTimestamp() { |
| return fTimestamp; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(fTrace, fTimestamp); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (!(obj instanceof DependencyEvent)) { |
| return false; |
| } |
| DependencyEvent other = (DependencyEvent) obj; |
| return Objects.equals(fTrace, other.fTrace) && Objects.equals(fTimestamp, other.fTimestamp); |
| } |
| |
| } |
| |
| /** |
| * Constructor |
| * |
| * @param source |
| * The source event of this dependency |
| * @param destination |
| * The destination event of this dependency |
| * @since 3.3 |
| */ |
| public TmfEventDependency(final DependencyEvent source, final DependencyEvent destination) { |
| fSource = source; |
| fDestination = destination; |
| } |
| |
| /** |
| * Get the source of this dependency |
| * |
| * @return The source event |
| * @since 3.3 |
| */ |
| public DependencyEvent getSource() { |
| return fSource; |
| } |
| |
| /** |
| * Get the destination of this dependency |
| * |
| * @return The source event |
| * @since 3.3 |
| */ |
| public DependencyEvent getDestination() { |
| return fDestination; |
| } |
| } |