org.eclipse.linuxtools.tmf.core.tests/stubs/org/eclipse/linuxtools/tmf/tests/stubs/component/TmfDataProviderStub.java

   1 /*******************************************************************************
   2  * Copyright (c) 2009, 2010 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.tests.stubs.component;
  14
  15 import java.io.File;
  16 import java.io.IOException;
  17 import java.net.URISyntaxException;
  18 import java.net.URL;
  19
  20 import org.eclipse.core.runtime.FileLocator;
  21 import org.eclipse.core.runtime.Path;
  22 import org.eclipse.linuxtools.tmf.core.component.TmfDataProvider;
  23 import org.eclipse.linuxtools.tmf.core.event.TmfEvent;
  24 import org.eclipse.linuxtools.tmf.core.exceptions.TmfTraceException;
  25 import org.eclipse.linuxtools.tmf.core.request.ITmfDataRequest;
  26 import org.eclipse.linuxtools.tmf.core.request.ITmfEventRequest;
  27 import org.eclipse.linuxtools.tmf.core.tests.TmfCoreTestPlugin;
  28 import org.eclipse.linuxtools.tmf.core.trace.ITmfContext;
  29 import org.eclipse.linuxtools.tmf.tests.stubs.trace.TmfTraceStub;
  30
  31 /**
  32  * <b><u>TmfDataProviderStub</u></b>
  33  * <p>
  34  * TODO: Implement me. Please.
  35  */
  36 @SuppressWarnings("nls")
  37 public class TmfDataProviderStub extends TmfDataProvider<TmfEvent> {
  38
  39     private static final String DIRECTORY   = "testfiles";
  40     private static final String TEST_STREAM = "M-Test-10K";
  41
  42     private TmfTraceStub fTrace;
  43
  44     public TmfDataProviderStub(final String path) throws IOException {
  45         super("TmfDataProviderStub", TmfEvent.class);
  46         final URL location = FileLocator.find(TmfCoreTestPlugin.getDefault().getBundle(), new Path(path), null);
  47         try {
  48             final File test = new File(FileLocator.toFileURL(location).toURI());
  49             fTrace = new TmfTraceStub(test.getPath(), 0, true);
  50         } catch (final TmfTraceException e) {
  51             e.printStackTrace();
  52         } catch (final URISyntaxException e) {
  53             e.printStackTrace();
  54         }
  55     }
  56
  57     public TmfDataProviderStub() throws IOException {
  58         this(DIRECTORY + File.separator + TEST_STREAM);
  59     }
  60
  61     // ------------------------------------------------------------------------
  62     // TmfProvider
  63     // ------------------------------------------------------------------------
  64
  65     @Override
  66     public ITmfContext armRequest(final ITmfDataRequest<TmfEvent> request) {
  67         if (request instanceof ITmfEventRequest<?>) {
  68             final ITmfContext context = fTrace.seekEvent(((ITmfEventRequest<?>) request).getRange().getStartTime());
  69             return context;
  70         }
  71         return null;
  72     }
  73
  74     @Override
  75     public TmfEvent getNext(final ITmfContext context) {
  76         return fTrace.getNext(context);
  77     }
  78
  79     @Override
  80     public boolean isCompleted(final ITmfDataRequest<TmfEvent> request, final TmfEvent data, final int nbRead) {
  81         return false;
  82     }
  83
  84 }