analysis/org.eclipse.tracecompass.analysis.os.linux.core.tests/src/org/eclipse/tracecompass/analysis/os/linux/core/tests/latency/KernelCtfTraceStub.java

   1 /*******************************************************************************
   2  * Copyright (c) 2016 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
  10 package org.eclipse.tracecompass.analysis.os.linux.core.tests.latency;
  11
  12 import java.io.IOException;
  13
  14 import org.eclipse.core.runtime.FileLocator;
  15 import org.eclipse.jdt.annotation.NonNull;
  16 import org.eclipse.tracecompass.analysis.os.linux.core.tests.stubs.trace.KernelEventLayoutStub;
  17 import org.eclipse.tracecompass.analysis.os.linux.core.trace.IKernelAnalysisEventLayout;
  18 import org.eclipse.tracecompass.analysis.os.linux.core.trace.IKernelTrace;
  19 import org.eclipse.tracecompass.testtraces.ctf.CtfTestTrace;
  20 import org.eclipse.tracecompass.tmf.core.exceptions.TmfTraceException;
  21 import org.eclipse.tracecompass.tmf.ctf.core.event.CtfTmfEvent;
  22 import org.eclipse.tracecompass.tmf.ctf.core.trace.CtfTmfTrace;
  23
  24 class KernelCtfTraceStub extends CtfTmfTrace implements IKernelTrace {
  25     public KernelCtfTraceStub() {
  26         super();
  27     }
  28
  29     public static synchronized KernelCtfTraceStub getTrace(CtfTestTrace ctfTrace) {
  30         String tracePath;
  31         try {
  32             tracePath = FileLocator.toFileURL(ctfTrace.getTraceURL()).getPath();
  33         } catch (IOException e) {
  34             throw new IllegalStateException();
  35         }
  36
  37         KernelCtfTraceStub trace = new KernelCtfTraceStub();
  38         try {
  39             trace.initTrace(null, tracePath, CtfTmfEvent.class);
  40         } catch (TmfTraceException e) {
  41             /* Should not happen if tracesExist() passed */
  42             throw new RuntimeException(e);
  43         }
  44         return trace;
  45     }
  46
  47     @Override
  48     public @NonNull IKernelAnalysisEventLayout getKernelEventLayout() {
  49         return KernelEventLayoutStub.getInstance();
  50     }
  51 }