tmf/org.eclipse.tracecompass.tmf.core/src/org/eclipse/tracecompass/tmf/core/trace/TmfEventTypeCollectionHelper.java

   1 /*******************************************************************************
   2  * Copyright (c) 2014 Ericsson
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Matthew Khouzam - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.tracecompass.tmf.core.trace;
  14
  15 import java.util.HashSet;
  16 import java.util.Set;
  17
  18 import org.eclipse.jdt.annotation.NonNull;
  19 import org.eclipse.tracecompass.tmf.core.event.ITmfEventType;
  20
  21 /**
  22  * Set Helper for sets of ITmfTraceType
  23  *
  24  * TODO Remove once Java 8 is used (replace with Streams)
  25  *
  26  * @author Matthew Khouzam
  27  */
  28 public final class TmfEventTypeCollectionHelper {
  29
  30     private TmfEventTypeCollectionHelper() {
  31     }
  32
  33     /**
  34      * Gets the event names from a collection of event types
  35      *
  36      * @param eventTypes
  37      *            an iterable collection of ITmfEventTypes
  38      * @return a set of the names of these events, if some names are clashing
  39      *         they will only appear once
  40      */
  41     public static Set<@NonNull String> getEventNames(Iterable<@NonNull ? extends ITmfEventType> eventTypes) {
  42         Set<@NonNull String> retSet = new HashSet<>();
  43         for (ITmfEventType eventType : eventTypes) {
  44             retSet.add(eventType.getName());
  45         }
  46         return retSet;
  47     }
  48 }