Package org.epics.archiverappliance.retrieval.mimeresponses

Interface MimeResponse

All Superinterfaces:

EventConsumer

All Known Implementing Classes:

FlxXMLResponse, JPlotResponse, JSONResponse, MatlabResponse, PBRAWResponse, PvaMimeResponse, QWResponse, SinglePVCSVResponse, SVGResponse, TextResponse

public interface MimeResponse
extends EventConsumer

A set of events for classes that convert event streams to mime specific responses. setOutputStream signals the start of the whole package processingPV signals the start of a new PV's data in the package swicthingToStream signals that we have a new event stream in the current PV; so stream specific headers could be added here. close signifies the end of the whole package. Note we get both one processingPV and potentially many swicthingToStream for each PV in the package.

Author:

mshankar

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CONTENT_TYPE
static final String[]	PROXIED_HEADERS	Headers that should be proxied across in a clustered environment should be added to this list.

Method Summary

Modifier and Type	Method	Description
void	close()
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 interface org.epics.archiverappliance.retrieval.EventConsumer

consumeEvent

Field Details

CONTENT_TYPE

static final String CONTENT_TYPE

See Also:

• Constant Field Values

PROXIED_HEADERS

static final String[] PROXIED_HEADERS

Headers that should be proxied across in a clustered environment should be added to this list.

Method Details

setOutputStream

void setOutputStream(OutputStream os)

processingPV

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

Called when we swich to a new PV.

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

void swicthingToStream(EventStream strm)

close

void close()