Package org.jlab.analysis.eventmerger

Class RandomTriggerFilter

java.lang.Object

org.jlab.analysis.eventmerger.RandomTriggerFilter

public class RandomTriggerFilter
extends Object

Random trigger filtering tool: filters hipo event according to trigger bit and beam current to create random-trigger files for background merging Usage : trigger-filter -b [trigger bit mask (e.g. 0x0000008000000000 to select the FC trigger] -o [output file] Options : -c : minimum beam current (default = -1) -e : name of required bank, e.g. DC::tdc (default = ) -n : maximum number of events to process (default = -1) -r : minimum number of rows in required bank (default = -1) -s : source of beam current information (scalers or Epics PV name) (default = scalers) -v : vetoed trigger bit mask (e.g. 0xFFFFFF7FFFFFFFFF to veto all but the FC trigger (default = 0x0) Event is filtered if trigger word overlaps with the trigger mask and doesn't overlap with the veto mask. The beam current condition is based by default on DSC2 scaler readouts from RUN::scaler or, alternatively, Epics readouts from RAW::epics. In the absence of (or in addition to) the current threshold, a threshold on raw hit multiplicity can be applied selecting bank and minimum number of rows

Author:

devita

Constructor Summary

Constructors

Constructor	Description
RandomTriggerFilter(long bits, long veto, double current)
RandomTriggerFilter(long bits, long veto, double min, double max, String currentSource, String bankName, int nRows)
RandomTriggerFilter(long bits, long veto, String bankName, int nRows)

Method Summary

Modifier and Type	Method	Description
org.jlab.jnp.hipo4.data.Bank	createFilterBank(org.jlab.jnp.hipo4.io.HipoWriterSorted writer, org.jlab.jnp.utils.json.JsonObject json)	Create hipo bank with Json string saved as byte array
static void	main(String[] args)
boolean	processEvent(org.jlab.jnp.hipo4.data.Event event)
static long	readTriggerMask(String mask)
org.jlab.jnp.utils.json.JsonObject	settingsToJson(long selectedBits, long vetoedBits, double minCurrent, double maxCurrent, String currentSource, String bankName, int nRows)	Create Json object with filter settings

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

RandomTriggerFilter

public RandomTriggerFilter(long bits,
 long veto,
 double current)

RandomTriggerFilter

public RandomTriggerFilter(long bits,
 long veto,
 String bankName,
 int nRows)

RandomTriggerFilter

public RandomTriggerFilter(long bits,
 long veto,
 double min,
 double max,
 String currentSource,
 String bankName,
 int nRows)

Method Details

processEvent

public boolean processEvent(org.jlab.jnp.hipo4.data.Event event)

settingsToJson

public org.jlab.jnp.utils.json.JsonObject settingsToJson(long selectedBits,
 long vetoedBits,
 double minCurrent,
 double maxCurrent,
 String currentSource,
 String bankName,
 int nRows)

Create Json object with filter settings

Parameters:

selectedBits -

vetoedBits -

minCurrent -

currentSource -

bankName -

nRows -

Returns:

createFilterBank

public org.jlab.jnp.hipo4.data.Bank createFilterBank(org.jlab.jnp.hipo4.io.HipoWriterSorted writer,
 org.jlab.jnp.utils.json.JsonObject json)

Create hipo bank with Json string saved as byte array

Parameters:

writer -

json -

Returns:

readTriggerMask

public static long readTriggerMask(String mask)

main

public static void main(String[] args)