// EMF 5/30/03: never clear cache, just don't write if older than
// what's there...
public void put(ChannelMap cm) {
try {
if (debug > 3) System.err.println("BRCache.put: cm " + cm);
if (debug > 3)
for (int i = 0; i < cm.NumberOfChannels(); i++) {
System.err.println(i + ": " + cm.GetTimeStart(i) + " " + cm.GetData(i));
}
// check must be on per channel basis
ChannelMap cmCache = new ChannelMap();
Double[] lastTimeD = sink.getEndTimes(cm);
for (int i = 0; i < cm.NumberOfChannels(); i++) {
double thisTime = cm.GetTimeStart(i);
if (lastTimeD[i] == null || lastTimeD[i].doubleValue() < thisTime) {
int idx = cmCache.Add(cm.GetName(i));
cmCache.PutTimeRef(cm, i);
cmCache.PutDataRef(idx, cm, i);
}
}
source.Flush(cmCache);
/*
//if time goes backwards, reset ring buffer
double thisTime=Double.MAX_VALUE;
for (int i=0;i<cm.NumberOfChannels();i++) {
double time=cm.GetTimeStart(i)+cm.GetTimeDuration(i);
if (time<thisTime) thisTime=time;
}
if (thisTime<lastTime) { //reset ring buffer and clear endTimes
if (debug>3) System.err.println("BRCache.put: reset ring buffer");
source.SetRingBuffer(1000,"none",0);
endTimes.clear();
}
if (thisTime<Double.MAX_VALUE) lastTime=thisTime;
//put end times into cache
for (int i=0;i<cm.NumberOfChannels();i++) {
endTimes.put(cm.GetName(i),new Double(cm.GetTimeStart(i)+cm.GetTimeDuration(i)));
}
//put data into server
source.Flush(cm);
*/
} catch (Exception e) {
System.err.println("BRCache.put exception: " + e.getMessage());
e.printStackTrace();
}
}
// ********************** PlugInTemplate Overrides *************************//
protected void processRequest(ChannelMap fwdData, PlugInChannelMap out) throws SAPIException {
if (fwdData.NumberOfChannels() == 0) return;
// Override member defaults with dynamic options:
int minDecimation = this.minDecimation, maxSamples = this.maxSamples;
boolean antiAlias = this.antiAlias;
java.util.Properties opts = getRequestOptions();
String temp;
if ((temp = opts.getProperty("minDecimation")) != null) minDecimation = Integer.parseInt(temp);
if ((temp = opts.getProperty("maxSamples")) != null) maxSamples = Integer.parseInt(temp);
if ((temp = opts.getProperty("antiAlias")) != null) antiAlias = "true".equals(temp);
// 2007/08/15 WHF maxSamples applies to all channels:
// 2007/08/15 WHF Changed their mind. Uncomment to re-enable.
/*if (fwdData.NumberOfChannels() == 0) return;
maxSamples /= fwdData.NumberOfChannels();
if (maxSamples < 1) maxSamples = 1; */
for (int index = 0; index < fwdData.NumberOfChannels(); ++index) {
Object data;
// Will add if necessary, otherwise just a lookup:
int outIndex = out.Add(fwdData.GetName(index));
// data = GetDataAsArray.get(fwdData, index);
data = fwdData.GetDataAsArray(index);
if (data == null) {
System.err.println("ResamplePlugIn: Unsupported datatype.");
continue;
}
int npts = Array.getLength(data);
if (npts <= maxSamples && minDecimation < 2) {
// length okay, just copy:
out.PutTimeRef(fwdData, index);
out.PutDataRef(outIndex, fwdData, index);
continue;
}
// Calculate the decimation factor for this set:
int ndeci = (int) Math.ceil(((double) npts) / maxSamples);
if (ndeci < minDecimation) ndeci = minDecimation;
double[] ddata = null;
if (antiAlias) {
if (fwdData.GetType(index) == ChannelMap.TYPE_FLOAT64) {
ddata = (double[]) data;
} else {
ddata = new double[npts];
for (int ii = 0; ii < npts; ++ii) ddata[ii] = Array.getDouble(data, ii);
}
double[] dataOut = new double[ddata.length];
Filter lowPass = new Filter(1.0 / ndeci);
lowPass.filter(ddata, dataOut);
data = dataOut;
}
Object result = decimate(data, ndeci);
out.PutTime(fwdData.GetTimeStart(index), fwdData.GetTimeDuration(index));
if (antiAlias) {
out.PutDataAsFloat64(outIndex, (double[]) result);
} else {
switch (fwdData.GetType(index)) {
case ChannelMap.TYPE_FLOAT32:
out.PutDataAsFloat32(outIndex, (float[]) result);
break;
case ChannelMap.TYPE_FLOAT64:
out.PutDataAsFloat64(outIndex, (double[]) result);
break;
case ChannelMap.TYPE_INT16:
out.PutDataAsInt16(outIndex, (short[]) result);
break;
case ChannelMap.TYPE_INT32:
out.PutDataAsInt32(outIndex, (int[]) result);
break;
case ChannelMap.TYPE_INT64:
out.PutDataAsInt64(outIndex, (long[]) result);
break;
case ChannelMap.TYPE_INT8:
out.PutDataAsInt8(outIndex, (byte[]) result);
break;
}
}
}
}
