/*******************************************************************************\r
* Copyright (c) 2011 Ericsson\r
- * \r
+ *\r
* All rights reserved. This program and the accompanying materials are\r
* made available under the terms of the Eclipse Public License v1.0 which\r
* accompanies this distribution, and is available at\r
* http://www.eclipse.org/legal/epl-v10.html\r
- * \r
+ *\r
* Contributors:\r
* Patrick Tasse - Initial API and implementation\r
******************************************************************************/\r
import org.eclipse.core.runtime.Status;\r
import org.eclipse.core.runtime.jobs.Job;\r
import org.eclipse.linuxtools.tmf.core.component.ITmfDataProvider;\r
-import org.eclipse.linuxtools.tmf.core.event.TmfEvent;\r
+import org.eclipse.linuxtools.tmf.core.event.ITmfEvent;\r
import org.eclipse.linuxtools.tmf.core.filter.ITmfFilter;\r
import org.eclipse.linuxtools.tmf.core.request.TmfDataRequest;\r
import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace;\r
\r
public class TmfEventsCache {\r
\r
- public class CachedEvent {\r
- TmfEvent event;\r
+ public static class CachedEvent {\r
+ ITmfEvent event;\r
long rank;\r
\r
- public CachedEvent (TmfEvent event, long rank) {\r
- this.event = event;\r
+ public CachedEvent (ITmfEvent iTmfEvent, long rank) {\r
+ this.event = iTmfEvent;\r
this.rank = rank;\r
}\r
}\r
\r
- private CachedEvent[] fCache;\r
+ private final CachedEvent[] fCache;\r
private int fCacheStartIndex = 0;\r
private int fCacheEndIndex = 0;\r
\r
private ITmfTrace<?> fTrace;\r
- private TmfEventsTable fTable;\r
+ private final TmfEventsTable fTable;\r
private ITmfFilter fFilter;\r
- private ArrayList<Integer> fFilterIndex = new ArrayList<Integer>(); // contains the event rank at each 'cache size' filtered events\r
+ private final ArrayList<Integer> fFilterIndex = new ArrayList<Integer>(); // contains the event rank at each 'cache size' filtered events\r
\r
public TmfEventsCache(int cacheSize, TmfEventsTable table) {\r
fCache = new CachedEvent[cacheSize];\r
fTable = table;\r
}\r
- \r
+\r
public void setTrace(ITmfTrace<?> trace) {\r
fTrace = trace;\r
clear();\r
}\r
- \r
- public void clear() {\r
+\r
+ public synchronized void clear() {\r
fCacheStartIndex = 0;\r
fCacheEndIndex = 0;\r
fFilterIndex.clear();\r
fFilter = filter;\r
clear();\r
}\r
- \r
+\r
public void clearFilter() {\r
fFilter = null;\r
clear();\r
}\r
- \r
- public CachedEvent getEvent(int index) {\r
+\r
+ public synchronized CachedEvent getEvent(int index) {\r
if ((index >= fCacheStartIndex) && (index < fCacheEndIndex)) {\r
int i = index - fCacheStartIndex;\r
return fCache[i];\r
return null;\r
}\r
\r
- public CachedEvent peekEvent(int index) {\r
+ public synchronized CachedEvent peekEvent(int index) {\r
if ((index >= fCacheStartIndex) && (index < fCacheEndIndex)) {\r
int i = index - fCacheStartIndex;\r
return fCache[i];\r
}\r
return null;\r
}\r
- \r
- public synchronized void storeEvent(TmfEvent event, long rank, int index) {\r
+\r
+ public synchronized void storeEvent(ITmfEvent event, long rank, int index) {\r
if (fCacheStartIndex == fCacheEndIndex) {\r
fCacheStartIndex = index;\r
fCacheEndIndex = index;\r
fCacheEndIndex++;\r
}\r
}\r
- if (fFilter != null && index % fCache.length == 0) {\r
+ if ((fFilter != null) && ((index % fCache.length) == 0)) {\r
int i = index / fCache.length;\r
- fFilterIndex.add(i, new Integer((int) rank));\r
+ fFilterIndex.add(i, Integer.valueOf((int) rank));\r
}\r
}\r
- \r
+\r
@SuppressWarnings("unchecked")\r
- public int getFilteredEventIndex(final long rank) {\r
+ public synchronized int getFilteredEventIndex(final long rank) {\r
int current;\r
int startRank;\r
- TmfDataRequest<TmfEvent> request;\r
+ TmfDataRequest<ITmfEvent> request;\r
synchronized (this) {\r
int start = 0;\r
int end = fFilterIndex.size();\r
- \r
- if (fCacheEndIndex - fCacheStartIndex > 1) {\r
+\r
+ if ((fCacheEndIndex - fCacheStartIndex) > 1) {\r
if (rank < fCache[0].rank) {\r
- end = fCacheStartIndex / fCache.length + 1;\r
+ end = (fCacheStartIndex / fCache.length) + 1;\r
} else if (rank > fCache[fCacheEndIndex - fCacheStartIndex - 1].rank) {\r
start = fCacheEndIndex / fCache.length;\r
} else {\r
- for (int i = 0; i < fCacheEndIndex - fCacheStartIndex; i++) {\r
+ for (int i = 0; i < (fCacheEndIndex - fCacheStartIndex); i++) {\r
if (fCache[i].rank >= rank) {\r
return fCacheStartIndex + i;\r
}\r
return fCacheEndIndex;\r
}\r
}\r
- \r
+\r
current = (start + end) / 2;\r
while (current != start) {\r
if (rank < fFilterIndex.get(current)) {\r
}\r
startRank = fFilterIndex.get(current);\r
}\r
- \r
+\r
final int index = current * fCache.length;\r
- \r
- class DataRequest<T extends TmfEvent> extends TmfDataRequest<T> {\r
+\r
+ class DataRequest<T extends ITmfEvent> extends TmfDataRequest<T> {\r
int fRank;\r
int fIndex;\r
- \r
+\r
DataRequest(Class<T> dataType, int start, int nbRequested) {\r
super(dataType, start, nbRequested);\r
fRank = start;\r
fIndex = index;\r
}\r
- \r
+\r
@Override\r
public void handleData(T event) {\r
super.handleData(event);\r
- if (isCancelled()) return;\r
+ if (isCancelled()) {\r
+ return;\r
+ }\r
if (fRank >= rank) {\r
cancel();\r
return;\r
return fIndex;\r
}\r
}\r
- \r
- request = new DataRequest<TmfEvent>(TmfEvent.class, startRank, TmfDataRequest.ALL_DATA);\r
- ((ITmfDataProvider<TmfEvent>) fTrace).sendRequest(request);\r
+\r
+ request = new DataRequest<ITmfEvent>(ITmfEvent.class, startRank, TmfDataRequest.ALL_DATA);\r
+ ((ITmfDataProvider<ITmfEvent>) fTrace).sendRequest(request);\r
try {\r
request.waitForCompletion();\r
- return ((DataRequest<TmfEvent>) request).getFilteredIndex();\r
+ return ((DataRequest<ITmfEvent>) request).getFilteredIndex();\r
} catch (InterruptedException e) {\r
}\r
return 0;\r
}\r
- \r
+\r
// ------------------------------------------------------------------------\r
// Event cache population\r
// ------------------------------------------------------------------------\r
- \r
+\r
// The event fetching job\r
private Job job;\r
private synchronized void populateCache(final int index) {\r
* 1. The job must exist\r
* 2. It must be running (i.e. not completed)\r
* 3. The requested index must be within the cache range\r
- * \r
+ *\r
* If the job meets these conditions, we simply exit.\r
* Otherwise, we create a new job but we might have to cancel\r
* an existing job for an obsolete range.\r
*/\r
if (job != null) {\r
if (job.getState() != Job.NONE) {\r
- if (index >= fCacheStartIndex && index < (fCacheStartIndex + fCache.length)) {\r
+ if ((index >= fCacheStartIndex) && (index < (fCacheStartIndex + fCache.length))) {\r
return;\r
}\r
// The new index is out of the requested range\r
job.cancel();\r
}\r
}\r
- \r
+\r
fCacheStartIndex = index;\r
fCacheEndIndex = index;\r
\r
skipCount = index - (i * fCache.length);\r
}\r
}\r
- \r
- TmfDataRequest<TmfEvent> request = new TmfDataRequest<TmfEvent>(TmfEvent.class, startIndex, nbRequested) {\r
+\r
+ TmfDataRequest<ITmfEvent> request = new TmfDataRequest<ITmfEvent>(ITmfEvent.class, startIndex, nbRequested) {\r
private int count = 0;\r
private long rank = startIndex;\r
@Override\r
- public void handleData(TmfEvent event) {\r
+ public void handleData(ITmfEvent event) {\r
// If the job is canceled, cancel the request so waitForCompletion() will unlock\r
if (monitor.isCanceled()) {\r
cancel();\r
}\r
super.handleData(event);\r
if (event != null) {\r
- if ((fFilter == null || fFilter.matches(event)) && skipCount-- <= 0) {\r
+ if (((fFilter == null) || fFilter.matches(event)) && (skipCount-- <= 0)) {\r
synchronized (TmfEventsCache.this) {\r
fCache[count] = new CachedEvent(event.clone(), rank);\r
count++;\r
}\r
if (count >= fCache.length) {\r
cancel();\r
- } else if (fFilter != null && count >= fTable.getTable().getItemCount() - 3) { // -1 for header row, -2 for top and bottom filter status rows\r
+ } else if ((fFilter != null) && (count >= (fTable.getTable().getItemCount() - 3))) { // -1 for header row, -2 for top and bottom filter status rows\r
cancel();\r
}\r
rank++;\r
}\r
};\r
\r
- ((ITmfDataProvider<TmfEvent>) fTrace).sendRequest(request);\r
+ ((ITmfDataProvider<ITmfEvent>) fTrace).sendRequest(request);\r
try {\r
request.waitForCompletion();\r
} catch (InterruptedException e) {\r
}\r
\r
fTable.cacheUpdated(true);\r
- \r
+\r
// Flag the UI thread that the cache is ready\r
if (monitor.isCanceled()) {\r
return Status.CANCEL_STATUS;\r
projects / deliverable / tracecompass.git / blobdiff