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.ITmfEvent;
  24 import org.eclipse.linuxtools.tmf.core.event.TmfEvent;
  25 import org.eclipse.linuxtools.tmf.core.exceptions.TmfTraceException;
  26 import org.eclipse.linuxtools.tmf.core.request.ITmfDataRequest;
  27 import org.eclipse.linuxtools.tmf.core.request.ITmfEventRequest;
  28 import org.eclipse.linuxtools.tmf.core.tests.TmfCoreTestPlugin;
  29 import org.eclipse.linuxtools.tmf.core.trace.ITmfContext;
  30 import org.eclipse.linuxtools.tmf.tests.stubs.trace.TmfTraceStub;
  31
  32 /**
  33  * <b><u>TmfDataProviderStub</u></b>
  34  * <p>
  35  * TODO: Implement me. Please.
  36  */
  37 @SuppressWarnings({"nls","javadoc"})
  38 public class TmfDataProviderStub extends TmfDataProvider {
  39
  40     private static final String DIRECTORY   = "testfiles";
  41     private static final String TEST_STREAM = "M-Test-10K";
  42
  43     private TmfTraceStub fTrace;
  44
  45     public TmfDataProviderStub(final String path) throws IOException {
  46         super("TmfDataProviderStub", TmfEvent.class);
  47         final URL location = FileLocator.find(TmfCoreTestPlugin.getDefault().getBundle(), new Path(path), null);
  48         try {
  49             final File test = new File(FileLocator.toFileURL(location).toURI());
  50             fTrace = new TmfTraceStub(test.getPath(), 0, true);
  51         } catch (final TmfTraceException e) {
  52             e.printStackTrace();
  53         } catch (final URISyntaxException e) {
  54             e.printStackTrace();
  55         }
  56     }
  57
  58     public TmfDataProviderStub() throws IOException {
  59         this(DIRECTORY + File.separator + TEST_STREAM);
  60     }
  61
  62     // ------------------------------------------------------------------------
  63     // TmfProvider
  64     // ------------------------------------------------------------------------
  65
  66     @Override
  67     public ITmfContext armRequest(final ITmfDataRequest request) {
  68         if (request instanceof ITmfEventRequest) {
  69             final ITmfContext context = fTrace.seekEvent(((ITmfEventRequest) request).getRange().getStartTime());
  70             return context;
  71         }
  72         return null;
  73     }
  74
  75     @Override
  76     public ITmfEvent getNext(final ITmfContext context) {
  77         return fTrace.getNext(context);
  78     }
  79
  80     @Override
  81     public boolean isCompleted(final ITmfDataRequest request, final ITmfEvent data, final int nbRead) {
  82         return false;
  83     }
  84
  85 }