public double computeEncodingTime(IChunk visualChunk, IVisualModule module) {
IChunk error = module.getModel().getDeclarativeModule().getErrorChunk();
if (error.equals(visualChunk))
return module.getModel().getProceduralModule().getDefaultProductionFiringTime();
return 0.085;
}
@Override
protected boolean removeSourceChunkInternal(IChunk chunkToRemove) {
if (LOGGER.isDebugEnabled())
LOGGER.debug("attempting to remove " + chunkToRemove + " from " + getName());
if (_times.containsKey(chunkToRemove)) {
if (LOGGER.isDebugEnabled()) LOGGER.debug("removing and setting status slots");
double time = _times.remove(chunkToRemove);
_sourceChunks.remove(time);
chunkRemoved(chunkToRemove);
if (LOGGER.isDebugEnabled()) {
// TODO remove debugging code
LOGGER.debug(getName() + " Source Chunks & Times " + _sourceChunks);
for (IChunk chunk : _sourceChunks.values())
if (chunk.isEncoded()) LOGGER.debug("WARNING : " + chunk + " has already been encoded");
}
return true;
} else
/*
* TODO remove debugging code safety check while I debug this issue: in
* some cases, the chunk (in the buffer) is being encoded and merged with
* an existing chunk - now, the buffer should not contain any encoded
* chunks, but somehow this one is still in here.. the problem is that the
* merging process changes the hashcode which will mean that the above
* check will fail.. this finds the problem and throws the appropriate
* exception so we can stop the execution
*/
/*
* problem found: two buffers, with the same chunk, one removes and
* encodes. solution: make all insertions copies
*/
for (IChunk source : _times.keySet())
if (source.equals(chunkToRemove))
throw new IllegalStateException(
"Mayday, hashcode has changed for encoded chunk " + chunkToRemove);
if (LOGGER.isDebugEnabled()) LOGGER.debug("nothing to remove");
return false;
}
/** when a chunk is matched against, we modify its insertion time.. */
@Override
protected boolean matchedInternal(IChunk chunk) {
if (!_times.containsKey(chunk)) {
if (LOGGER.isWarnEnabled()) LOGGER.warn(chunk + " was matched, but is not in the buffer?");
return false;
}
/*
* if LRA, we've done all we need to
*/
EjectionPolicy policy = getEjectionPolicy();
if (policy == EjectionPolicy.LeastRecentlyAdded || policy == EjectionPolicy.MostRecentlyAdded)
return true;
/*
* now we can tweak the access time, but only if the policy is LRU or LRM
*/
double oldTime = _times.get(chunk);
double newTime = ACTRRuntime.getRuntime().getClock(getModel()).getTime();
_sourceChunks.remove(oldTime);
/*
* make sure there are no collisions
*/
while (_sourceChunks.containsKey(newTime) && !chunk.equals(_sourceChunks.get(newTime)))
/*
* problem of more than one chunk inserted at the same time (could happen
* during path-integration)
*/
newTime += 0.000001;
_times.put(chunk, newTime);
_sourceChunks.put(newTime, chunk);
if (LOGGER.isDebugEnabled())
LOGGER.debug(getName() + " Source Chunks & Times " + _sourceChunks);
return true;
}
@Override
protected IChunk addSourceChunkInternal(IChunk chunkToInsert) {
if (LOGGER.isDebugEnabled()) LOGGER.debug("attempting to insert " + chunkToInsert);
/*
* ok, something will be changing..
*/
IChunk errorChunk = getErrorChunk();
/*
* did something go wrong? set the states..
*/
if (errorChunk.equals(chunkToInsert)
|| !isValidChunkType(chunkToInsert.getSymbolicChunk().getChunkType())) {
if (LOGGER.isDebugEnabled())
LOGGER.debug(getName() + " : " + chunkToInsert + " was error or invalid of chunk type");
setStateChunk(errorChunk);
chunkToInsert = null;
}
/*
* all is good, let's set the chunk
*/
if (chunkToInsert != null) {
/*
* are we bumping up against the maximum capacity?
*/
ensureCapacity();
double now = ACTRRuntime.getRuntime().getClock(getModel()).getTime();
double time = Double.MIN_VALUE;
/*
* if LRA or LRU, time will be now, if modified, we set it as minimum
* double value (can't be negative inf because of potential value
* collisions, see below)
*/
switch (getEjectionPolicy()) {
case LeastRecentlyAdded:
case LeastRecentlyUsed:
case MostRecentlyAdded:
case MostRecentlyUsed:
time = now;
break;
}
/*
* problem of more than one chunk inserted at the same time (could happen
* if a production fires multiple adds)
*/
while (_sourceChunks.containsKey(time) && !chunkToInsert.equals(_sourceChunks.get(time)))
time += 0.0000001;
_sourceChunks.put(time, chunkToInsert);
_times.put(chunkToInsert, time);
if (LOGGER.isDebugEnabled())
LOGGER.debug(getName() + " Source Chunks & Times " + _sourceChunks);
IModel model = getModel();
if (LOGGER.isDebugEnabled() || Logger.hasLoggers(model)) {
IMessageBuilder sb = Logger.messageBuilder();
sb.append(getName())
.append(" inserted ")
.append(chunkToInsert.getSymbolicChunk().getName());
if (LOGGER.isDebugEnabled()) LOGGER.debug(sb.toString());
Logger.log(model, Logger.Stream.BUFFER, sb);
}
chunkInserted(chunkToInsert);
}
return chunkToInsert;
}
