org.eclipse.tracecompass.lttng2.ust.core/src/org/eclipse/tracecompass/lttng2/ust/core/trace/LttngUstTrace.java

   1 /**********************************************************************
   2  * Copyright (c) 2013, 2014 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  *   Matthew Khouzam - Initial API and implementation
  11  *   Alexandre Montplaisir - Add UST callstack state system
  12  *   Marc-Andre Laperle - Handle BufferOverflowException (Bug 420203)
  13  **********************************************************************/
  14
  15 package org.eclipse.tracecompass.lttng2.ust.core.trace;
  16
  17 import java.nio.BufferOverflowException;
  18
  19 import org.eclipse.core.resources.IProject;
  20 import org.eclipse.core.runtime.IStatus;
  21 import org.eclipse.core.runtime.Status;
  22 import org.eclipse.tracecompass.ctf.core.trace.CTFReaderException;
  23 import org.eclipse.tracecompass.ctf.core.trace.CTFTrace;
  24 import org.eclipse.tracecompass.internal.lttng2.ust.core.Activator;
  25 import org.eclipse.tracecompass.tmf.core.trace.TraceValidationStatus;
  26 import org.eclipse.tracecompass.tmf.ctf.core.CtfTmfTrace;
  27
  28 /**
  29  * Class to contain LTTng-UST traces
  30  *
  31  * @author Matthew Khouzam
  32  * @since 2.1
  33  */
  34 public class LttngUstTrace extends CtfTmfTrace {
  35
  36     private static final int CONFIDENCE = 100;
  37
  38     /**
  39      * Default constructor
  40      */
  41     public LttngUstTrace() {
  42         super();
  43     }
  44
  45     /**
  46      * {@inheritDoc}
  47      * <p>
  48      * This implementation sets the confidence to 100 if the trace is a valid
  49      * CTF trace in the "ust" domain.
  50      */
  51     @Override
  52     public IStatus validate(final IProject project, final String path)  {
  53         try (CTFTrace temp = new CTFTrace(path);) {
  54             /* Make sure the domain is "ust" in the trace's env vars */
  55             String dom = temp.getEnvironment().get("domain"); //$NON-NLS-1$
  56             if (dom != null && dom.equals("\"ust\"")) { //$NON-NLS-1$
  57                 return new TraceValidationStatus(CONFIDENCE, Activator.PLUGIN_ID);
  58             }
  59             return new Status(IStatus.ERROR, Activator.PLUGIN_ID, Messages.LttngUstTrace_DomainError);
  60
  61         } catch (CTFReaderException e) {
  62             return new Status(IStatus.ERROR, Activator.PLUGIN_ID, e.toString(), e);
  63         } catch (NullPointerException e) {
  64             return new Status(IStatus.ERROR, Activator.PLUGIN_ID, e.toString(), e);
  65         } catch (final BufferOverflowException e) {
  66             return new Status(IStatus.ERROR, Activator.PLUGIN_ID, Messages.LttngUstTrace_TraceReadError + ": " + Messages.LttngUstTrace_MalformedTrace); //$NON-NLS-1$
  67         }
  68     }
  69 }