From a1440d1f4c7a827081cfaefbacb5c5df92492354 Mon Sep 17 00:00:00 2001
From: Francois Chouinard <fchouinard@gmail.com>
Date: Thu, 8 Mar 2012 17:52:16 -0500
Subject: [PATCH] Generalize ITmfTrace API (part 1)

---
 .../linuxtools/lttng/core/trace/LTTngExperiment.java      | 3 ++-
 .../linuxtools/lttng/core/trace/LTTngTextTrace.java       | 5 +++--
 .../eclipse/linuxtools/lttng/core/trace/LTTngTrace.java   | 8 ++++----
 .../linuxtools/lttng/stubs/LTTngEventParserStub.java      | 4 ++--
 .../eclipse/linuxtools/lttng/stubs/LTTngTraceStub.java    | 3 ++-
 .../linuxtools/tmf/stubs/trace/TmfEventParserStub.java    | 4 ++--
 .../eclipse/linuxtools/tmf/stubs/trace/TmfTraceStub.java  | 2 +-
 .../linuxtools/tmf/core/experiment/TmfExperiment.java     | 4 ++--
 .../linuxtools/tmf/core/parser/ITmfEventParser.java       | 4 ++--
 .../eclipse/linuxtools/tmf/core/trace/ITmfContext.java    | 5 ++++-
 .../org/eclipse/linuxtools/tmf/core/trace/ITmfTrace.java  | 4 ++--
 .../org/eclipse/linuxtools/tmf/core/trace/TmfTrace.java   | 2 +-
 .../tmf/ui/tests/uml2sd/trace/TmfUml2SDTestTrace.java     | 4 ++--
 .../linuxtools/tmf/ui/parsers/custom/CustomTxtTrace.java  | 4 ++--
 .../linuxtools/tmf/ui/parsers/custom/CustomXmlTrace.java  | 4 ++--
 15 files changed, 33 insertions(+), 27 deletions(-)

diff --git a/org.eclipse.linuxtools.lttng.core/src/org/eclipse/linuxtools/lttng/core/trace/LTTngExperiment.java b/org.eclipse.linuxtools.lttng.core/src/org/eclipse/linuxtools/lttng/core/trace/LTTngExperiment.java
index 9eb3f036ff..c56ec33e1e 100644
--- a/org.eclipse.linuxtools.lttng.core/src/org/eclipse/linuxtools/lttng/core/trace/LTTngExperiment.java
+++ b/org.eclipse.linuxtools.lttng.core/src/org/eclipse/linuxtools/lttng/core/trace/LTTngExperiment.java
@@ -29,6 +29,7 @@ import org.eclipse.linuxtools.tmf.core.request.TmfEventRequest;
 import org.eclipse.linuxtools.tmf.core.signal.TmfExperimentRangeUpdatedSignal;
 import org.eclipse.linuxtools.tmf.core.signal.TmfSignalHandler;
 import org.eclipse.linuxtools.tmf.core.signal.TmfSignalManager;
+import org.eclipse.linuxtools.tmf.core.trace.ITmfContext;
 import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace;
 import org.eclipse.linuxtools.tmf.core.trace.TmfContext;
 
@@ -108,7 +109,7 @@ public class LTTngExperiment<T extends ITmfEvent> extends TmfExperiment<T> {
     // ------------------------------------------------------------------------
 
     @Override
-    public synchronized ITmfEvent getNextEvent(TmfContext context) {
+    public synchronized ITmfEvent getNextEvent(ITmfContext context) {
 
         // Validate the context
         if (!(context instanceof TmfExperimentContext)) {
diff --git a/org.eclipse.linuxtools.lttng.core/src/org/eclipse/linuxtools/lttng/core/trace/LTTngTextTrace.java b/org.eclipse.linuxtools.lttng.core/src/org/eclipse/linuxtools/lttng/core/trace/LTTngTextTrace.java
index 29f884c46b..0691a7521d 100644
--- a/org.eclipse.linuxtools.lttng.core/src/org/eclipse/linuxtools/lttng/core/trace/LTTngTextTrace.java
+++ b/org.eclipse.linuxtools.lttng.core/src/org/eclipse/linuxtools/lttng/core/trace/LTTngTextTrace.java
@@ -24,6 +24,7 @@ import org.eclipse.linuxtools.lttng.core.event.LttngEventType;
 import org.eclipse.linuxtools.lttng.core.event.LttngTimestamp;
 import org.eclipse.linuxtools.lttng.jni.JniEvent;
 import org.eclipse.linuxtools.tmf.core.event.TmfTimeRange;
+import org.eclipse.linuxtools.tmf.core.trace.ITmfContext;
 import org.eclipse.linuxtools.tmf.core.trace.ITmfLocation;
 import org.eclipse.linuxtools.tmf.core.trace.TmfCheckpoint;
 import org.eclipse.linuxtools.tmf.core.trace.TmfContext;
@@ -201,7 +202,7 @@ public class LTTngTextTrace extends TmfTrace<LttngEvent> {
         return 0;
     }
 
-    private LttngEvent parseMyNextEvent(TmfContext context) {
+    private LttngEvent parseMyNextEvent(ITmfContext context) {
     	
     	// All parsing variables declared here so to be able to print them into the catch if needed
     	String tmpContent = null;
@@ -428,7 +429,7 @@ public class LTTngTextTrace extends TmfTrace<LttngEvent> {
     }
     
 	@Override
-	public LttngEvent parseEvent(TmfContext context) {
+	public LttngEvent parseEvent(ITmfContext context) {
 		context = seekLocation(context.getLocation());
 		return parseMyNextEvent(context);
 		
diff --git a/org.eclipse.linuxtools.lttng.core/src/org/eclipse/linuxtools/lttng/core/trace/LTTngTrace.java b/org.eclipse.linuxtools.lttng.core/src/org/eclipse/linuxtools/lttng/core/trace/LTTngTrace.java
index 1c3ec8f7fc..5e0dea3527 100644
--- a/org.eclipse.linuxtools.lttng.core/src/org/eclipse/linuxtools/lttng/core/trace/LTTngTrace.java
+++ b/org.eclipse.linuxtools.lttng.core/src/org/eclipse/linuxtools/lttng/core/trace/LTTngTrace.java
@@ -648,7 +648,7 @@ public class LTTngTrace extends TmfTrace<LttngEvent> {
     public int nbEventsRead = 0;
 
     @Override
-    public synchronized LttngEvent getNextEvent(TmfContext context) {
+    public synchronized LttngEvent getNextEvent(ITmfContext context) {
 
         if (PrintDebug) {
             System.out.println("getNextEvent(context) context.getLocation() -> " //$NON-NLS-1$
@@ -706,7 +706,7 @@ public class LTTngTrace extends TmfTrace<LttngEvent> {
     }
 
     // this method was extracted for profiling purposes
-    private void setPreviousAndCurrentTimes(TmfContext context, LttngEvent returnedEvent, LttngLocation curLocation) {
+    private void setPreviousAndCurrentTimes(ITmfContext context, LttngEvent returnedEvent, LttngLocation curLocation) {
 
         ITmfTimestamp eventTimestamp = returnedEvent.getTimestamp();
         // long eventTime = eventTimestamp.getValue();
@@ -758,7 +758,7 @@ public class LTTngTrace extends TmfTrace<LttngEvent> {
     }
 
     // this method was extracted for profiling purposes
-    private LttngLocation getCurrentLocation(TmfContext context) {
+    private LttngLocation getCurrentLocation(ITmfContext context) {
         LttngLocation curLocation;
         curLocation = new LttngLocation();
         context.setLocation(curLocation);
@@ -779,7 +779,7 @@ public class LTTngTrace extends TmfTrace<LttngEvent> {
      * @see org.eclipse.linuxtools.tmf.core.trace.TmfContext
      */
     @Override
-    public synchronized LttngEvent parseEvent(TmfContext context) {
+    public synchronized LttngEvent parseEvent(ITmfContext context) {
 
         if (PrintDebug) {
             System.out.println("parseEvent(context) context.getLocation() -> " //$NON-NLS-1$
diff --git a/org.eclipse.linuxtools.lttng.ui.tests/stubs/org/eclipse/linuxtools/lttng/stubs/LTTngEventParserStub.java b/org.eclipse.linuxtools.lttng.ui.tests/stubs/org/eclipse/linuxtools/lttng/stubs/LTTngEventParserStub.java
index 19cdb761f9..fa02e933d9 100644
--- a/org.eclipse.linuxtools.lttng.ui.tests/stubs/org/eclipse/linuxtools/lttng/stubs/LTTngEventParserStub.java
+++ b/org.eclipse.linuxtools.lttng.ui.tests/stubs/org/eclipse/linuxtools/lttng/stubs/LTTngEventParserStub.java
@@ -17,8 +17,8 @@ import java.io.IOException;
 import org.eclipse.linuxtools.lttng.core.event.LttngEvent;
 import org.eclipse.linuxtools.tmf.core.event.ITmfEvent;
 import org.eclipse.linuxtools.tmf.core.parser.ITmfEventParser;
+import org.eclipse.linuxtools.tmf.core.trace.ITmfContext;
 import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace;
-import org.eclipse.linuxtools.tmf.core.trace.TmfContext;
 
 /**
  * <b><u>TmfEventParserStub</u></b>
@@ -31,7 +31,7 @@ public class LTTngEventParserStub implements ITmfEventParser<LttngEvent> {
      * @see org.eclipse.linuxtools.tmf.core.parser.ITmfEventParser#parseNextEvent(org.eclipse.linuxtools.tmf.core.trace.ITmfTrace, org.eclipse.linuxtools.tmf.core.trace.TmfContext)
      */
     @Override
-    public ITmfEvent parseNextEvent(ITmfTrace<LttngEvent> stream, TmfContext context)
+    public ITmfEvent parseNextEvent(ITmfTrace<LttngEvent> stream, ITmfContext context)
                     throws IOException {
         // TODO Auto-generated method stub
         return null;
diff --git a/org.eclipse.linuxtools.lttng.ui.tests/stubs/org/eclipse/linuxtools/lttng/stubs/LTTngTraceStub.java b/org.eclipse.linuxtools.lttng.ui.tests/stubs/org/eclipse/linuxtools/lttng/stubs/LTTngTraceStub.java
index 34545326de..8612fffff8 100644
--- a/org.eclipse.linuxtools.lttng.ui.tests/stubs/org/eclipse/linuxtools/lttng/stubs/LTTngTraceStub.java
+++ b/org.eclipse.linuxtools.lttng.ui.tests/stubs/org/eclipse/linuxtools/lttng/stubs/LTTngTraceStub.java
@@ -19,6 +19,7 @@ import java.io.RandomAccessFile;
 import org.eclipse.linuxtools.lttng.core.event.LttngEvent;
 import org.eclipse.linuxtools.tmf.core.event.ITmfEvent;
 import org.eclipse.linuxtools.tmf.core.parser.ITmfEventParser;
+import org.eclipse.linuxtools.tmf.core.trace.ITmfContext;
 import org.eclipse.linuxtools.tmf.core.trace.ITmfLocation;
 import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace;
 import org.eclipse.linuxtools.tmf.core.trace.TmfContext;
@@ -145,7 +146,7 @@ public class LTTngTraceStub extends TmfTrace<LttngEvent> {
 	 * @see org.eclipse.linuxtools.tmf.trace.ITmfTrace#parseEvent()
 	 */
 	@Override
-	public ITmfEvent parseEvent(TmfContext context) {
+	public ITmfEvent parseEvent(ITmfContext context) {
        	try {
    			// paserNextEvent updates the context
        	    LttngEvent event = (LttngEvent) fParser.parseNextEvent(this, context);
diff --git a/org.eclipse.linuxtools.tmf.core.tests/stubs/org/eclipse/linuxtools/tmf/stubs/trace/TmfEventParserStub.java b/org.eclipse.linuxtools.tmf.core.tests/stubs/org/eclipse/linuxtools/tmf/stubs/trace/TmfEventParserStub.java
index a6a8128984..ea246f00c2 100644
--- a/org.eclipse.linuxtools.tmf.core.tests/stubs/org/eclipse/linuxtools/tmf/stubs/trace/TmfEventParserStub.java
+++ b/org.eclipse.linuxtools.tmf.core.tests/stubs/org/eclipse/linuxtools/tmf/stubs/trace/TmfEventParserStub.java
@@ -24,8 +24,8 @@ import org.eclipse.linuxtools.tmf.core.event.TmfEventField;
 import org.eclipse.linuxtools.tmf.core.event.TmfEventType;
 import org.eclipse.linuxtools.tmf.core.event.TmfTimestamp;
 import org.eclipse.linuxtools.tmf.core.parser.ITmfEventParser;
+import org.eclipse.linuxtools.tmf.core.trace.ITmfContext;
 import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace;
-import org.eclipse.linuxtools.tmf.core.trace.TmfContext;
 import org.eclipse.linuxtools.tmf.core.trace.TmfLocation;
 
 /**
@@ -68,7 +68,7 @@ public class TmfEventParserStub implements ITmfEventParser<TmfEvent> {
     static final String typePrefix = "Type-";
     @Override
 	@SuppressWarnings("unchecked")
-	public ITmfEvent parseNextEvent(ITmfTrace<TmfEvent> eventStream, TmfContext context) throws IOException {
+	public ITmfEvent parseNextEvent(ITmfTrace<TmfEvent> eventStream, ITmfContext context) throws IOException {
 
         if (! (eventStream instanceof TmfTraceStub)) {
             return null;
diff --git a/org.eclipse.linuxtools.tmf.core.tests/stubs/org/eclipse/linuxtools/tmf/stubs/trace/TmfTraceStub.java b/org.eclipse.linuxtools.tmf.core.tests/stubs/org/eclipse/linuxtools/tmf/stubs/trace/TmfTraceStub.java
index df3c312067..47750f8e4d 100644
--- a/org.eclipse.linuxtools.tmf.core.tests/stubs/org/eclipse/linuxtools/tmf/stubs/trace/TmfTraceStub.java
+++ b/org.eclipse.linuxtools.tmf.core.tests/stubs/org/eclipse/linuxtools/tmf/stubs/trace/TmfTraceStub.java
@@ -223,7 +223,7 @@ public class TmfTraceStub extends TmfTrace<TmfEvent> {
     }
 
 	@Override
-	public ITmfEvent parseEvent(TmfContext context) {
+	public ITmfEvent parseEvent(ITmfContext context) {
 	    fLock.lock();
        	try {
    			// parseNextEvent will update the context
diff --git a/org.eclipse.linuxtools.tmf.core/src/org/eclipse/linuxtools/tmf/core/experiment/TmfExperiment.java b/org.eclipse.linuxtools.tmf.core/src/org/eclipse/linuxtools/tmf/core/experiment/TmfExperiment.java
index b7197a3034..864cd9c03c 100644
--- a/org.eclipse.linuxtools.tmf.core/src/org/eclipse/linuxtools/tmf/core/experiment/TmfExperiment.java
+++ b/org.eclipse.linuxtools.tmf.core/src/org/eclipse/linuxtools/tmf/core/experiment/TmfExperiment.java
@@ -557,7 +557,7 @@ public class TmfExperiment<T extends ITmfEvent> extends TmfEventProvider<T> impl
 //	}
 
     @Override
-    public synchronized ITmfEvent getNextEvent(TmfContext context) {
+    public synchronized ITmfEvent getNextEvent(ITmfContext context) {
 
         // Validate the context
         if (!(context instanceof TmfExperimentContext)) {
@@ -655,7 +655,7 @@ public class TmfExperiment<T extends ITmfEvent> extends TmfEventProvider<T> impl
      * @see org.eclipse.linuxtools.tmf.trace.ITmfTrace#parseEvent(org.eclipse.linuxtools .tmf.trace.TmfContext)
      */
     @Override
-    public ITmfEvent parseEvent(TmfContext context) {
+    public ITmfEvent parseEvent(ITmfContext context) {
 
         // Validate the context
         if (!(context instanceof TmfExperimentContext)) {
diff --git a/org.eclipse.linuxtools.tmf.core/src/org/eclipse/linuxtools/tmf/core/parser/ITmfEventParser.java b/org.eclipse.linuxtools.tmf.core/src/org/eclipse/linuxtools/tmf/core/parser/ITmfEventParser.java
index 6c955d97cd..0ba4f3180b 100644
--- a/org.eclipse.linuxtools.tmf.core/src/org/eclipse/linuxtools/tmf/core/parser/ITmfEventParser.java
+++ b/org.eclipse.linuxtools.tmf.core/src/org/eclipse/linuxtools/tmf/core/parser/ITmfEventParser.java
@@ -15,8 +15,8 @@ package org.eclipse.linuxtools.tmf.core.parser;
 import java.io.IOException;
 
 import org.eclipse.linuxtools.tmf.core.event.ITmfEvent;
+import org.eclipse.linuxtools.tmf.core.trace.ITmfContext;
 import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace;
-import org.eclipse.linuxtools.tmf.core.trace.TmfContext;
 
 /**
  * <b><u>ITmfEventParser</u></b>
@@ -29,5 +29,5 @@ public interface ITmfEventParser<T extends ITmfEvent> {
      * @return
      * @throws IOException 
      */
-	public ITmfEvent parseNextEvent(ITmfTrace<T> stream, TmfContext context) throws IOException;
+	public ITmfEvent parseNextEvent(ITmfTrace<T> stream, ITmfContext context) throws IOException;
 }
diff --git a/org.eclipse.linuxtools.tmf.core/src/org/eclipse/linuxtools/tmf/core/trace/ITmfContext.java b/org.eclipse.linuxtools.tmf.core/src/org/eclipse/linuxtools/tmf/core/trace/ITmfContext.java
index caca47b86b..4606ef1eeb 100644
--- a/org.eclipse.linuxtools.tmf.core/src/org/eclipse/linuxtools/tmf/core/trace/ITmfContext.java
+++ b/org.eclipse.linuxtools.tmf.core/src/org/eclipse/linuxtools/tmf/core/trace/ITmfContext.java
@@ -17,7 +17,7 @@ package org.eclipse.linuxtools.tmf.core.trace;
  * <p>
  * This is a place-holder for the context objects.
  */
-public interface ITmfContext {
+public interface ITmfContext extends Cloneable {
 
     public long UNKNOWN_RANK = -2L;
     public long INITIAL_RANK = -1L;
@@ -36,4 +36,7 @@ public interface ITmfContext {
     public void updateRank(int rank);
 
     public boolean isValidRank();
+
+    public ITmfContext clone();
+
 }
diff --git a/org.eclipse.linuxtools.tmf.core/src/org/eclipse/linuxtools/tmf/core/trace/ITmfTrace.java b/org.eclipse.linuxtools.tmf.core/src/org/eclipse/linuxtools/tmf/core/trace/ITmfTrace.java
index c79e215600..d798b1ba73 100644
--- a/org.eclipse.linuxtools.tmf.core/src/org/eclipse/linuxtools/tmf/core/trace/ITmfTrace.java
+++ b/org.eclipse.linuxtools.tmf.core/src/org/eclipse/linuxtools/tmf/core/trace/ITmfTrace.java
@@ -128,13 +128,13 @@ public interface ITmfTrace<T extends ITmfEvent> extends ITmfComponent {
      * 
      * @return the next event in the stream
      */
-    public ITmfEvent getNextEvent(TmfContext context);
+    public ITmfEvent getNextEvent(ITmfContext context);
 
     /**
      * Return the event pointed by the supplied context (or null if no event left) and *does not* update the context.
      * 
      * @return the next event in the stream
      */
-    public ITmfEvent parseEvent(TmfContext context);
+    public ITmfEvent parseEvent(ITmfContext context);
 
 }
diff --git a/org.eclipse.linuxtools.tmf.core/src/org/eclipse/linuxtools/tmf/core/trace/TmfTrace.java b/org.eclipse.linuxtools.tmf.core/src/org/eclipse/linuxtools/tmf/core/trace/TmfTrace.java
index caa07fca9c..25a662f58f 100644
--- a/org.eclipse.linuxtools.tmf.core/src/org/eclipse/linuxtools/tmf/core/trace/TmfTrace.java
+++ b/org.eclipse.linuxtools.tmf.core/src/org/eclipse/linuxtools/tmf/core/trace/TmfTrace.java
@@ -408,7 +408,7 @@ public abstract class TmfTrace<T extends ITmfEvent> extends TmfEventProvider<T>
      * linuxtools.tmf.trace.ITmfTrace.TraceContext)
      */
     @Override
-    public synchronized ITmfEvent getNextEvent(TmfContext context) {
+    public synchronized ITmfEvent getNextEvent(ITmfContext context) {
         // parseEvent() does not update the context
         ITmfEvent event = parseEvent(context);
         if (event != null) {
diff --git a/org.eclipse.linuxtools.tmf.ui.tests/widgetStubs/org/eclipse/linuxtools/tmf/ui/tests/uml2sd/trace/TmfUml2SDTestTrace.java b/org.eclipse.linuxtools.tmf.ui.tests/widgetStubs/org/eclipse/linuxtools/tmf/ui/tests/uml2sd/trace/TmfUml2SDTestTrace.java
index 98b6e6dc23..a0df87c855 100644
--- a/org.eclipse.linuxtools.tmf.ui.tests/widgetStubs/org/eclipse/linuxtools/tmf/ui/tests/uml2sd/trace/TmfUml2SDTestTrace.java
+++ b/org.eclipse.linuxtools.tmf.ui.tests/widgetStubs/org/eclipse/linuxtools/tmf/ui/tests/uml2sd/trace/TmfUml2SDTestTrace.java
@@ -21,8 +21,8 @@ import org.eclipse.linuxtools.tmf.core.event.TmfEventField;
 import org.eclipse.linuxtools.tmf.core.event.TmfEventType;
 import org.eclipse.linuxtools.tmf.core.event.TmfTimestamp;
 import org.eclipse.linuxtools.tmf.core.parser.ITmfEventParser;
+import org.eclipse.linuxtools.tmf.core.trace.ITmfContext;
 import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace;
-import org.eclipse.linuxtools.tmf.core.trace.TmfContext;
 import org.eclipse.linuxtools.tmf.core.trace.TmfLocation;
 import org.eclipse.linuxtools.tmf.stubs.trace.TmfTraceStub;
 
@@ -30,7 +30,7 @@ public class TmfUml2SDTestTrace implements ITmfEventParser<TmfEvent> {
     
     @Override
     @SuppressWarnings({ "unchecked", "nls" })    
-    public TmfEvent parseNextEvent(ITmfTrace<TmfEvent> eventStream, TmfContext context) throws IOException {
+    public TmfEvent parseNextEvent(ITmfTrace<TmfEvent> eventStream, ITmfContext context) throws IOException {
         if (! (eventStream instanceof TmfTraceStub)) {
             return null;
         }
diff --git a/org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/parsers/custom/CustomTxtTrace.java b/org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/parsers/custom/CustomTxtTrace.java
index 63f4876e09..7f4a0b3424 100644
--- a/org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/parsers/custom/CustomTxtTrace.java
+++ b/org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/parsers/custom/CustomTxtTrace.java
@@ -147,7 +147,7 @@ public class CustomTxtTrace extends TmfTrace<CustomTxtEvent> {
     }
 
     @Override
-    public synchronized TmfEvent getNextEvent(TmfContext context) {
+    public synchronized TmfEvent getNextEvent(ITmfContext context) {
         ITmfContext savedContext = context.clone();
         TmfEvent event = parseEvent(context);
         if (event != null) {
@@ -158,7 +158,7 @@ public class CustomTxtTrace extends TmfTrace<CustomTxtEvent> {
     }
 
     @Override
-    public TmfEvent parseEvent(TmfContext tmfContext) {
+    public TmfEvent parseEvent(ITmfContext tmfContext) {
         if (!(tmfContext instanceof CustomTxtTraceContext)) {
             return null;
         }
diff --git a/org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/parsers/custom/CustomXmlTrace.java b/org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/parsers/custom/CustomXmlTrace.java
index 5db3458595..9c5ec541d7 100644
--- a/org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/parsers/custom/CustomXmlTrace.java
+++ b/org.eclipse.linuxtools.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/parsers/custom/CustomXmlTrace.java
@@ -157,7 +157,7 @@ public class CustomXmlTrace extends TmfTrace<CustomXmlEvent> {
     }
 
     @Override
-    public synchronized TmfEvent getNextEvent(TmfContext context) {
+    public synchronized TmfEvent getNextEvent(ITmfContext context) {
         ITmfContext savedContext = context.clone();
         TmfEvent event = parseEvent(context);
         if (event != null) {
@@ -168,7 +168,7 @@ public class CustomXmlTrace extends TmfTrace<CustomXmlEvent> {
     }
 
     @Override
-    public TmfEvent parseEvent(TmfContext tmfContext) {
+    public TmfEvent parseEvent(ITmfContext tmfContext) {
         if (!(tmfContext instanceof CustomXmlTraceContext)) {
             return null;
         }
-- 
2.34.1