Author: [log in to unmask]
Date: Wed Dec 3 11:02:09 2014
New Revision: 1636
Log:
Abstract SVT EVIO reader used to convert SVT bank sample blocks to RawTrackerHits.
Added:
java/trunk/evio/src/main/java/org/hps/evio/AbstractSvtEvioReader.java (with props)
Added: java/trunk/evio/src/main/java/org/hps/evio/AbstractSvtEvioReader.java
=============================================================================
--- java/trunk/evio/src/main/java/org/hps/evio/AbstractSvtEvioReader.java (added)
+++ java/trunk/evio/src/main/java/org/hps/evio/AbstractSvtEvioReader.java Wed Dec 3 11:02:09 2014
@@ -0,0 +1,200 @@
+package org.hps.evio;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.jlab.coda.jevio.EvioEvent;
+import org.jlab.coda.jevio.StructureFinder;
+import org.jlab.coda.jevio.BaseStructure;
+
+import org.lcsim.detector.tracker.silicon.HpsSiSensor;
+import org.lcsim.event.EventHeader;
+import org.lcsim.event.RawTrackerHit;
+import org.lcsim.geometry.Subdetector;
+import org.lcsim.lcio.LCIOUtil;
+
+import org.hps.util.Pair;
+
+/**
+ * Abstract SVT EVIO reader used to convert SVT bank sample blocks to
+ * {@link RawTrackerHit}s.
+ *
+ * @author Omar Moreno <[log in to unmask]>
+ * @date November 20, 2014
+ *
+ */
+public abstract class AbstractSvtEvioReader extends EvioReader {
+
+ // A Map from DAQ pair (FPGA/Hybrid or FEB ID/FEB Hybrid ID) to the
+ // corresponding sensor
+ protected Map<Pair<Integer /* FPGA */, Integer /* Hybrid */>,
+ HpsSiSensor /* Sensor */> daqPairToSensor
+ = new HashMap<Pair<Integer, Integer>, HpsSiSensor>();
+
+ // Flag indicating whether the DAQ map has been setup
+ protected boolean isDaqMapSetup = false;
+
+ // Collections and names
+ private static final String SVT_HIT_COLLECTION_NAME = "SVTRawTrackerHits";
+ List<RawTrackerHit> rawHits = new ArrayList<RawTrackerHit>();
+
+ // Constants
+ private static final int MIN_DATA_BANK_TAG = 0;
+ private static final String SUBDETECTOR_NAME = "Tracker";
+ private static final String READOUT_NAME = "TrackerHits";
+
+ /**
+ * Get the maximum data bank tag in the event.
+ *
+ * @return Maximum data bank tag
+ */
+ abstract protected int getMaxDataBankTag();
+
+ /**
+ * Get the SVT bank tag
+ *
+ * @return SVT bank tag
+ */
+ abstract protected int getSvtBankTag();
+
+ /**
+ * Get the number of 32 bit integers composing the data block header
+ *
+ * @return The header length
+ */
+ abstract protected int getDataHeaderLength();
+
+ /**
+ * Get the number of 32 bit integers composing the data block tail (the
+ * data inserted after all sample blocks in a data block)
+ *
+ * @return The tail length
+ */
+ abstract protected int getDataTailLength();
+
+ /**
+ *
+ */
+ abstract protected String getDataBankCollectionName();
+
+ /**
+ * A method to setup a mapping between a DAQ pair
+ * (FPGA/Hybrid or FEB ID/FEB Hybrid ID) and the corresponding sensor.
+ *
+ * @param subdetector - The tracker {@link Subdetector} object
+ */
+ // TODO: This can probably be done when the conditions are loaded.
+ abstract protected void setupDaqMap(Subdetector subdetector);
+
+ /**
+ * Get the sensor associated with a set of samples
+ *
+ * @param data - sample block of data
+ * @return The sensor associated with a set of sample
+ */
+ abstract protected HpsSiSensor getSensor(int[] data);
+
+ /**
+ * Make a {@link RawTrackerHit} from a set of samples.
+ *
+ * @param data - sample block of data
+ * @return A raw hit
+ */
+ abstract protected RawTrackerHit makeHit(int[] data);
+
+ /**
+ * Process an EVIO event and extract all information relevant to the SVT.
+ *
+ * @param event - EVIO event to process
+ * @param lcsimEvent - LCSim event to put collections into
+ * @return true if the EVIO was processed successfully, false otherwise
+ */
+ public boolean processEvent(EvioEvent event, EventHeader lcsimEvent) {
+ this.makeHits(event, lcsimEvent);
+ return true;
+ }
+
+ /**
+ * Make {@link RawTrackerHit}s out of all sample sets in an SVT EVIO bank
+ * and put them into an LCSim event.
+ *
+ *
+ * @param event - EVIO event to process
+ * @param lcsimEvent - LCSim event to put collections into
+ * @return true if the raw hits were created successfully, false otherwise
+ */
+ public boolean makeHits(EvioEvent event, EventHeader lcsimEvent) {
+
+ // Setup the DAQ map if it's not setup
+ if (!this.isDaqMapSetup)
+ this.setupDaqMap(lcsimEvent.getDetector().getSubdetector(
+ SUBDETECTOR_NAME));
+
+ // Clear the list of raw tracker hits
+ rawHits.clear();
+
+ // Get the SVT data banks encapsulated by the physics event. There
+ // should only be a single SVT bank that contains all physics data.
+ // FIXME: Change the tag name so it's clear that we are referring to
+ // the data bank
+ List<BaseStructure> svtBanks = StructureFinder.getMatchingStructures(
+ event, this.getSvtBankTag());
+
+ // If there wasn't any SVT banks found, return false
+ if (svtBanks.isEmpty())
+ return false;
+
+ // Check that the SVT bank contains data banks. If not, throw an
+ // exception
+ if (svtBanks.get(0).getChildCount() == 0) {
+ throw new RuntimeException("[ " + this.getClass().getSimpleName()
+ + " ]: SVT bank doesn't contain any data banks.");
+ }
+
+ // Loop over the SVT data banks
+ for (BaseStructure dataBank : svtBanks.get(0).getChildren()) {
+
+ // Get the bank tag and check whether it's within the allowable
+ // ranges. If not, throw an exception
+ int dataBankTag = dataBank.getHeader().getTag();
+ if (dataBankTag < MIN_DATA_BANK_TAG
+ || dataBankTag >= this.getMaxDataBankTag()) {
+ throw new RuntimeException("[ "
+ + this.getClass().getSimpleName()
+ + " ]: Unexpected data bank tag: " + dataBankTag);
+ }
+
+ // Get the int data encapsulated by the data bank
+ int[] data = dataBank.getIntData();
+
+ // Check that a complete set of samples exist
+ int sampleCount = data.length - this.getDataHeaderLength()
+ - this.getDataTailLength();
+ System.out.println("[ " + this.getClass().getSimpleName()
+ + " ]: Sample count: " + sampleCount);
+ if (sampleCount % 4 != 0) {
+ throw new RuntimeException("[ "
+ + this.getClass().getSimpleName()
+ + " ]: Size of samples array is not divisible by 4");
+ }
+
+ // Loop through all of the samples and make hits
+ for (int samplesN = this.getDataHeaderLength(); samplesN < sampleCount; samplesN += 4) {
+
+ int[] samples = new int[4];
+ System.arraycopy(data, samplesN, samples, 0, samples.length);
+ rawHits.add(this.makeHit(samples));
+ }
+ }
+
+ // Turn on 64-bit cell ID.
+ int flag = LCIOUtil.bitSet(0, 31, true);
+ // Add the collection of raw hits to the LCSim event
+ lcsimEvent.put(SVT_HIT_COLLECTION_NAME, rawHits, RawTrackerHit.class,
+ flag, READOUT_NAME);
+
+ return true;
+ }
+}
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