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v4 integration in - PowerPoint Presentation

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v4 integration in - PPT Presentation

pvmanager and CSS Gabriele Carcassi 1222013 Components vTypes pvmanager pva DataSource pva DataSource configuration plugin Archiver client interface BOY DataBrowser V4 producerconsumer ID: 336693

datasource pvmanager pva css pvmanager datasource css pva queue plugin release integration applications pvdata response command types conversions pvaccess

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Slide1

v4 integration inpvmanager and CSS

Gabriele

Carcassi

1/22/2013Slide2

Components

vTypes

pvmanager

pva

DataSource

pva DataSource configuration plugin

Archiver client interface

BOY

DataBrowser

V4 producer/consumer

V4 command/response

v4 packaging plugin

queues

Outside of CSS

CSS pluginsSlide3

new in pvmanager 2.0

Datasource

spec revisited

Allows pluggable conversions from

pvStructures to whatever Java objectCould be vType, but doesn’t have toThis can allow to build prototypes of Normative Types and their mapping to Java types without depending on Gabriele or Matej

to do workSlide4

pvmanager 2.0 pluggable types

For example, in

ca

:

If needed, Matej could have something similar for pva

// Create a custom adapter that converts DBR to whateverJCATypeAdapter

myTypeAdapter = ... JCATypeAdapterSet

myAdapters = ...

// Creates a custom JCA datasource with your support

JCADataSource source = new JCADataSourceBuilder()

.typeSupport(new

JCATypeSupport(myAdapters)

.build()Slide5

new in pvmanager 2.0

Queue which allows to get data from any source, including command/response

This would allow a client to benefit from all the rest of

pvmanager

while processing the result

Queue<MyObject> queue = queueOf

(MyObject.class) PVReader<

MyObject> pv =

PVManager.read(queue).maxRate

(ofHz(10));

// Response can be posted on the queue from any threadqueue.add

(newValue);Slide6

vTypes

They are now a separate library

org.epics.vtype

This allows Kay to write an archiver

interface that depends on them without depending on pvmanagerInterest on my side:Multi-dimensional array – had spec reviewed from James a long time ago; need to make sure it will workImage – the current definition is “useful crap”Slide7

pva DataSource

Matej

has been working on it

From what I can see:Connection implemented

Implemented conversions to Vdouble, Vint, VByteArray, VShortArray

, VIntArray, VDoubleArray, VEnum, Vstring and VStringArraySlide8

pva DataSource related suggestions

Consider implementing the type conversions separately, since

vTypes

are now separate – useful for command/response

Consider having a builder to configure the datasourceDepend on release versions of pvData and pvAccess

Consider having the released pvData and pvAccess in maven centralPrevents me to release pva datasource

in maven central, so can’t provide v4 “out of the box” experienceSlide9

CSS integration of pvmanager

All BNL applications are already using

pvmanager

SNS has committed to pvmanager

, and are deprecating utility.pvMost SNS applications (DataBrowser, BEAST, …) are already ported to pvmanager. In CSS 3.2 they will not use

utility.pvBOY will have option to support both in CSS 3.2BNL aims to have a CSS 3.2 with pvmanager only for all applicationsSlide10

CSS 3.2 schedule

By the end of the month, release branch created

Aiming for site products released by the end of FebruarySlide11

pva datasource integration in CSS

The following plugins need to be created:

Wrapper for

pvData

Maintainer to identifyLack of propertly release version?Wrapper for pvAccess

Maintainer to identifyLack of propertly release version?Configuration plugin for pva datasource

Maintainer to identifyPvmanager pva datasource pluginGabriele Carcassi will create the plugin and move the code from pvmanager

repository with everything elseNeeds the previous addressedSlide12

pva datasource integration in CSS

Need someone to test whether the different applications

actually work