| /******************************************************************************* |
| * Copyright (c) 2015 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 |
| *******************************************************************************/ |
| |
| package org.eclipse.tracecompass.internal.lttng2.kernel.core.analysis.graph.model; |
| |
| import org.eclipse.tracecompass.common.core.NonNullUtils; |
| import org.eclipse.tracecompass.tmf.core.event.ITmfEvent; |
| import org.eclipse.tracecompass.tmf.core.event.ITmfEventField; |
| |
| /** |
| * Type casting for getting field values |
| * |
| * @author Francis Giraldeau |
| * @author Geneviève Bastien |
| */ |
| public class EventField { |
| |
| private EventField() { |
| // Empty constructor |
| } |
| |
| /** |
| * Get string field with default value |
| * |
| * @param event |
| * the event |
| * @param name |
| * the field name |
| * @param def |
| * the default value to return if the field does not exists |
| * @return the long value |
| */ |
| public static String getOrDefault(ITmfEvent event, String name, String def) { |
| ITmfEventField field = event.getContent().getField(name); |
| if (field == null) { |
| return def; |
| } |
| return NonNullUtils.checkNotNull((String) field.getValue()); |
| } |
| } |