Class EpicsSequence

java.lang.Object

org.jlab.detector.epics.EpicsSequence

All Implemented Interfaces:

Comparator<Epics>

public class EpicsSequence
extends Object
implements Comparator<Epics>

For easy access to most recent epics readout for any given event. See the main() method for example use case, where only the 2 lines marked with "!!!" are specific to accessing epics information.

Author:

baltzell, devita

Field Summary

Fields

Modifier and Type	Field	Description
protected final List<Epics>	epics

Constructor Summary

Constructors

Constructor	Description
EpicsSequence()

Method Summary

Modifier and Type	Method	Description
protected boolean	add(Epics de)
int	compare(Epics o1, Epics o2)
protected int	findIndex(int unixTime)
Epics	get(int unixTime)
Epics	get(org.jlab.jnp.hipo4.data.Event event)
Epics	getElement(int index)
double	getIntegral(String name, double defaultvalue)
double	getIntegral(String name, double defaultvalue, int t1, int t2)
double	getMinimum(String name, double defaultvalue, int unixtime)
double	getMinimum(String name, double defaultvalue, int t1, int t2)
List<Epics>	getSubList(int t1, int t2)
static void	main(String[] args)
void	print(String name)
static EpicsSequence	readSequence(List<String> filenames)	This reads tag=1 events for RAW::epics banks, and initializes and returns a EpicsSequence that can be used to access the most recent epics readout for any given event.
int	size()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

equals, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Field Details

epics

protected final List<Epics> epics

Constructor Details

EpicsSequence

public EpicsSequence()

Method Details

compare

public int compare(Epics o1,
 Epics o2)

Specified by:

compare in interface Comparator<Epics>

findIndex

protected int findIndex(int unixTime)

add

protected boolean add(Epics de)

getElement

public Epics getElement(int index)

Parameters:

index -

Returns:

the Epics for the given index

get

public Epics get(int unixTime)

Parameters:

unixTime - (i.e. RUN::config.timestamp)

Returns:

the most recent Epics for the given timestamp

get

public Epics get(org.jlab.jnp.hipo4.data.Event event)

Parameters:

event -

Returns:

the most recent Epics for the given event

getSubList

public List<Epics> getSubList(int t1,
 int t2)

Parameters:

t1 - lower limit of a Unix time interval

t2 - upper limit of a Unix time interval

Returns:

subset of sequence entries in the interval

getIntegral

public double getIntegral(String name,
 double defaultvalue,
 int t1,
 int t2)

Parameters:

name - Epics variable name

defaultvalue - Epics variable default value

t1 - lower limit of a Unix time interval

t2 - upper limit of a Unix time interval

Returns:

integral of the chosen variable in the time interval

getIntegral

public double getIntegral(String name,
 double defaultvalue)

Parameters:

name - Epics variable name

defaultvalue - Epics variable default value

Returns:

integral of the chosen variable

getMinimum

public double getMinimum(String name,
 double defaultvalue,
 int t1,
 int t2)

Parameters:

name - Epics variable name

defaultvalue - Epics variable default value

t1 - lower limit of a Unix time interval

t2 - upper limit of a Unix time interval

Returns:

minimum of the chosen variable in the time interval

getMinimum

public double getMinimum(String name,
 double defaultvalue,
 int unixtime)

Parameters:

name - Epics variable name

defaultvalue - Epics variable default value

unixtime - Unix time

Returns:

minimum of the chosen variable in -2s:+4s around the input time

print

public void print(String name)

readSequence

public static EpicsSequence readSequence(List<String> filenames)

This reads tag=1 events for RAW::epics banks, and initializes and returns a EpicsSequence that can be used to access the most recent epics readout for any given event.

Parameters:

filenames - list of names of HIPO files to read

Returns:

sequence

size

public int size()

main

public static void main(String[] args)