org.eclipse.linuxtools.tmf.tests/stubs/org/eclipse/linuxtools/tmf/trace/TmfEventParserStub.java

   1 /*******************************************************************************
   2  * Copyright (c) 2009 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  *   Francois Chouinard - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.tmf.trace;
  14
  15 import java.io.EOFException;
  16 import java.io.IOException;
  17 import java.io.RandomAccessFile;
  18 import java.util.Vector;
  19
  20 import org.eclipse.linuxtools.tmf.event.TmfEvent;
  21 import org.eclipse.linuxtools.tmf.event.TmfEventContent;
  22 import org.eclipse.linuxtools.tmf.event.TmfEventFormat;
  23 import org.eclipse.linuxtools.tmf.event.TmfEventReference;
  24 import org.eclipse.linuxtools.tmf.event.TmfEventSource;
  25 import org.eclipse.linuxtools.tmf.event.TmfEventType;
  26 import org.eclipse.linuxtools.tmf.event.TmfTimestamp;
  27 import org.eclipse.linuxtools.tmf.stream.ITmfEventParser;
  28 import org.eclipse.linuxtools.tmf.stream.ITmfEventStream;
  29
  30 /**
  31  * <b><u>TmfEventParserStub</u></b>
  32  * <p>
  33  * TODO: Implement me. Please.
  34  */
  35 public class TmfEventParserStub implements ITmfEventParser {
  36
  37     // ========================================================================
  38     // Attributes
  39     // ========================================================================
  40
  41         private final int NB_FORMATS = 10;
  42     private final TmfEventFormat[] fFormats;
  43
  44     // ========================================================================
  45     // Constructors
  46     // ========================================================================
  47
  48     public TmfEventParserStub() {
  49         fFormats = new TmfEventFormat[NB_FORMATS];
  50         for (int i = 0; i < NB_FORMATS; i++) {
  51                 Vector<String> format = new Vector<String>();
  52                 for (int j = 1; j <= i; j++) {
  53                         format.add(new String("Fmt-" + i + "-Fld-" + j));
  54                 }
  55                 String[] fields = new String[i];
  56                 fFormats[i] = new TmfEventFormat(format.toArray(fields));
  57         }
  58     }
  59
  60     // ========================================================================
  61     // Operators
  62     // ========================================================================
  63
  64     /* (non-Javadoc)
  65      * @see org.eclipse.linuxtools.tmf.eventlog.ITmfEventParser#parseNextEvent()
  66      */
  67     static final String typePrefix = "Type-";
  68     public TmfEvent getNextEvent(ITmfEventStream eventStream) throws IOException {
  69
  70         if (! (eventStream instanceof TmfEventStreamStub)) {
  71             return null;
  72         }
  73
  74         RandomAccessFile stream = ((TmfEventStreamStub) eventStream).getStream();
  75
  76         try {
  77             long ts        = stream.readLong();
  78             String source  = stream.readUTF();
  79             String type    = stream.readUTF();
  80             int reference  = stream.readInt();
  81             int typeIndex  = Integer.parseInt(type.substring(typePrefix.length()));
  82             String[] fields = new String[typeIndex];
  83             for (int i = 0; i < typeIndex; i++) {
  84                 fields[i] = stream.readUTF();
  85             }
  86             String content = "[";
  87             for (int i = 0; i < typeIndex - 1; i++) {
  88                 content += fields[i] + ", ";
  89             }
  90             content += "]";
  91
  92             TmfEvent event = new TmfEvent(
  93                     new TmfTimestamp(ts, (byte) -3, 0),     // millisecs
  94                     new TmfEventSource(source),
  95                     new TmfEventType(type, fFormats[typeIndex]),
  96                     new TmfEventContent(content, fFormats[typeIndex]),
  97                     new TmfEventReference(reference));
  98             return event;
  99         } catch (EOFException e) {
 100         }
 101         return null;
 102     }
 103
 104 }