Package org.epics.archiverappliance.retrieval

Class GetDataAtTime

java.lang.Object

org.epics.archiverappliance.retrieval.GetDataAtTime

public class GetDataAtTime
extends Object

Constructor Summary

Constructors

Constructor	Description
GetDataAtTime()

Method Summary

Modifier and Type	Method	Description
static void	getDataAtTime(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp, ConfigService configService)	The main getDataAtTime function.
static void	getDataAtTimeForAppliance(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp, ConfigService configService)	Get data at a specified time from the data stores for the specified set of PV's.
static PVWithData	getDataAtTimeForPVFromStores(String pvName, Instant atTime, Period searchPeriod, ConfigService configService)	Async method for getting data for a pv from its list of stores.

Methods inherited from class java.lang.Object

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

Constructor Details

GetDataAtTime

public GetDataAtTime()

Method Details

getDataAtTime

public static void getDataAtTime(javax.servlet.http.HttpServletRequest req,
 javax.servlet.http.HttpServletResponse resp,
 ConfigService configService)
                          throws javax.servlet.ServletException,
IOException,
InterruptedException,
ExecutionException

The main getDataAtTime function. Pass in a list of PVs and a time.

Parameters:

req -

resp -

configService -

Throws:

javax.servlet.ServletException

IOException

InterruptedException

ExecutionException

getDataAtTimeForPVFromStores

public static PVWithData getDataAtTimeForPVFromStores(String pvName,
 Instant atTime,
 Period searchPeriod,
 ConfigService configService)

Async method for getting data for a pv from its list of stores. Walk thru the store till you find the closest sample before the requested time.

Parameters:

pvName -

atTime -

configService -

Returns:

getDataAtTimeForAppliance

public static void getDataAtTimeForAppliance(javax.servlet.http.HttpServletRequest req,
 javax.servlet.http.HttpServletResponse resp,
 ConfigService configService)
                                      throws javax.servlet.ServletException,
IOException,
InterruptedException,
ExecutionException

Get data at a specified time from the data stores for the specified set of PV's. This only returns data for those PV's that are on this appliance.

Throws:

javax.servlet.ServletException

IOException

InterruptedException

ExecutionException