/**
* Flush the logs from the temporary vector into the table.
*
* <p>New logs are appended in the temporary vector <code>rowsToAdd</code> to limit the frequency
* of updating the table model. This method flushes the logs from the temporary vector into the
* model vector (<code>rows</code>).
*
* @return <code>true</code> if at least one log has been added to the model
*/
private void flushLogs() {
// rowsToAdd is reduced then copied into temp:
// it is possible to append logs again without waiting for the flush
// i.e. modification of the model inside EDT do not block rowsToAdd
final List<ILogEntry> temp;
synchronized (rowsToAdd) {
if (rowsToAdd.isEmpty()) {
return;
}
// try to apply reduction rules only in OPERATOR mode
try {
if (loggingClient.getEngine().getAudience().getInfo() == AudienceInfo.OPERATOR) {
logProcessor.reduce(rowsToAdd);
}
} catch (Throwable t) {
System.err.println(
"Exception caught ("
+ t.getMessage()
+ ")while reducing logs: reduction disabled this time");
t.printStackTrace(System.err);
}
temp = new Vector<ILogEntry>(rowsToAdd);
rowsToAdd.clear();
}
// Add the reduced logs into the model (from inside the EDT)
try {
EDTExecutor.instance()
.executeSync(
new Runnable() {
@Override
public void run() {
for (int t = temp.size() - 1; t >= 0; t--) {
ILogEntry log = temp.get(t);
Integer key;
try {
key = Integer.valueOf(allLogs.add(log));
} catch (LogCacheException lce) {
System.err.println(
"Exception caught while inserting a new log entry in cache:");
System.err.println(lce.getLocalizedMessage());
lce.printStackTrace(System.err);
continue;
}
rows.add(key);
}
// Finally notify the change
fireTableRowsInserted(0, temp.size() - 1);
}
});
} catch (InvocationTargetException e) {
System.out.println("!!! Exception: " + e.getMessage() + "; model size=" + rows.size());
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
/**
* Replace a log entry with another.
*
* @param pos The position in the cache of the log to replace
* @param newEntry The new LogEntryXML
*/
public void replaceLog(final int pos, final ILogEntry newEntry) {
EDTExecutor.instance()
.execute(
new Runnable() {
@Override
public void run() {
// Replace the entry in the list of all the logs (allLogs)
try {
allLogs.replaceLog(pos, newEntry);
} catch (LogCacheException e) {
System.err.println("Error replacing log " + pos);
e.printStackTrace();
}
}
});
}
/**
* Check if there are too many logs in the table and if it is the case then remove the oldest.
*
* <p>This method must be executed inside the EDT.
*
* @see #maxLog
*/
private void removeExceedingLogs() {
try {
EDTExecutor.instance()
.executeSync(
new Runnable() {
@Override
public void run() {
int sz = rows.size();
if (maxLog <= 0 || sz <= maxLog) {
// The model is unbounded or there is still enough room in the model
return;
}
keysDeleter.scheduleForDeletion(rows.removeLastEntries(rows.size() - maxLog));
fireTableDataChanged();
}
});
} catch (InvocationTargetException e) {
System.out.println("!!! Exception: " + e.getMessage() + "; model size=" + rows.size());
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
/** Remove all the logs. */
public void clearAll() {
// Remove the logs waiting to be inserted
EDTExecutor.instance()
.execute(
new Runnable() {
public void run() {
rowsToAdd.clear();
rows.clear();
keysDeleter.invalidate();
try {
allLogs.clear();
} catch (Throwable t) {
System.err.println("Exception caught clearing the cache: " + t.getMessage());
t.printStackTrace(System.err);
JOptionPane.showInternalMessageDialog(
loggingClient,
"Error clearing the cache.",
"Error clearing the cache",
JOptionPane.ERROR_MESSAGE);
}
fireTableDataChanged();
}
});
}
