| 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.TmfEventReference; |
| 23 | import org.eclipse.linuxtools.tmf.event.TmfEventSource; |
| 24 | import org.eclipse.linuxtools.tmf.event.TmfEventType; |
| 25 | import org.eclipse.linuxtools.tmf.event.TmfTimestamp; |
| 26 | import org.eclipse.linuxtools.tmf.parser.ITmfEventParser; |
| 27 | |
| 28 | /** |
| 29 | * <b><u>TmfEventParserStub</u></b> |
| 30 | * <p> |
| 31 | * TODO: Implement me. Please. |
| 32 | */ |
| 33 | @SuppressWarnings("nls") |
| 34 | public class TmfEventParserStub implements ITmfEventParser { |
| 35 | |
| 36 | // ------------------------------------------------------------------------ |
| 37 | // Attributes |
| 38 | // ------------------------------------------------------------------------ |
| 39 | |
| 40 | private final int NB_TYPES = 10; |
| 41 | private final TmfEventType[] fTypes; |
| 42 | |
| 43 | // ------------------------------------------------------------------------ |
| 44 | // Constructors |
| 45 | // ------------------------------------------------------------------------ |
| 46 | |
| 47 | public TmfEventParserStub() { |
| 48 | fTypes = new TmfEventType[NB_TYPES]; |
| 49 | for (int i = 0; i < NB_TYPES; i++) { |
| 50 | Vector<String> format = new Vector<String>(); |
| 51 | for (int j = 1; j <= i; j++) { |
| 52 | format.add(new String("Fmt-" + i + "-Fld-" + j)); |
| 53 | } |
| 54 | String[] fields = new String[i]; |
| 55 | fTypes[i] = new TmfEventType("Type-" + i, format.toArray(fields)); |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | // ------------------------------------------------------------------------ |
| 60 | // Operators |
| 61 | // ------------------------------------------------------------------------ |
| 62 | |
| 63 | static final String typePrefix = "Type-"; |
| 64 | @Override |
| 65 | @SuppressWarnings("unchecked") |
| 66 | public TmfEvent parseNextEvent(ITmfTrace eventStream, TmfContext context) throws IOException { |
| 67 | |
| 68 | if (! (eventStream instanceof TmfTraceStub)) { |
| 69 | return null; |
| 70 | } |
| 71 | |
| 72 | // Highly inefficient... |
| 73 | RandomAccessFile stream = ((TmfTraceStub) eventStream).getStream(); |
| 74 | String name = eventStream.getName(); |
| 75 | name = name.substring(name.lastIndexOf('/') + 1); |
| 76 | |
| 77 | // no need to use synchronized since it's already cover by the calling method |
| 78 | |
| 79 | long location = 0; |
| 80 | if (context != null) |
| 81 | location = ((TmfLocation<Long>) (context.getLocation())).getLocation(); |
| 82 | stream.seek(location); |
| 83 | |
| 84 | try { |
| 85 | long ts = stream.readLong(); |
| 86 | String source = stream.readUTF(); |
| 87 | String type = stream.readUTF(); |
| 88 | @SuppressWarnings("unused") |
| 89 | int reference = stream.readInt(); |
| 90 | int typeIndex = Integer.parseInt(type.substring(typePrefix.length())); |
| 91 | String[] fields = new String[typeIndex]; |
| 92 | for (int i = 0; i < typeIndex; i++) { |
| 93 | fields[i] = stream.readUTF(); |
| 94 | } |
| 95 | |
| 96 | String content = "["; |
| 97 | if (typeIndex > 0) { |
| 98 | content += fields[0]; |
| 99 | } |
| 100 | for (int i = 1; i < typeIndex; i++) { |
| 101 | content += ", " + fields[i]; |
| 102 | } |
| 103 | content += "]"; |
| 104 | |
| 105 | TmfEvent event = new TmfEvent( |
| 106 | new TmfTimestamp(ts, (byte) -3, 0), // millisecs |
| 107 | new TmfEventSource(source), |
| 108 | fTypes[typeIndex], |
| 109 | new TmfEventReference(name)); |
| 110 | TmfEventContent cnt = new TmfEventContent(event, content); |
| 111 | event.setContent(cnt); |
| 112 | return event; |
| 113 | } catch (EOFException e) { |
| 114 | } |
| 115 | return null; |
| 116 | } |
| 117 | |
| 118 | } |