Package org.epics.archiverappliance.retrieval.mimeresponses

Class JSONResponse

java.lang.Object

org.epics.archiverappliance.retrieval.mimeresponses.JSONResponse

All Implemented Interfaces:

EventConsumer, MimeResponse

public class JSONResponse
extends Object
implements MimeResponse

Author:

mshankar Sends the event data as a JSON response. The response is a array of PV elements, each PV has a meta and data section. The data section has timestamp in epoch seconds and the value

Field Summary

Fields inherited from interface org.epics.archiverappliance.retrieval.mimeresponses.MimeResponse

CONTENT_TYPE, PROXIED_HEADERS

Constructor Summary

Constructors

Constructor	Description
JSONResponse()

Method Summary

Modifier and Type	Method	Description
void	close()
void	consumeEvent(Event e)
void	processingPV(BasicContext retrievalContext, String pv, Instant start, Instant end, EventStreamDesc streamDesc)	Called when we swich to a new PV.
void	setOutputStream(OutputStream os)
void	swicthingToStream(EventStream strm)

Methods inherited from class java.lang.Object

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

Constructor Details

JSONResponse

public JSONResponse()

Method Details

consumeEvent

public void consumeEvent(Event e)
                  throws Exception

Specified by:

consumeEvent in interface EventConsumer

Throws:

Exception

setOutputStream

public void setOutputStream(OutputStream os)

Specified by:

setOutputStream in interface MimeResponse

close

public void close()

Specified by:

close in interface MimeResponse

processingPV

public void processingPV(BasicContext retrievalContext,
 String pv,
 Instant start,
 Instant end,
 EventStreamDesc streamDesc)

Description copied from interface: MimeResponse

Called when we swich to a new PV.

Specified by:

processingPV in interface MimeResponse

Parameters:

pv - The name of PV

start - Instant

end - Instant

streamDesc - Could be null if we have no data in first store we hit.

swicthingToStream

public void swicthingToStream(EventStream strm)

Specified by:

swicthingToStream in interface MimeResponse