EPICS’03 @ Abingdon JoiMint-eLog Matthias Clausen.
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Transcript of EPICS’03 @ Abingdon JoiMint-eLog Matthias Clausen.
eLog and applications
Integration of eLog into applications (JoiMint)
Integration of JoiMint-MIME type and JoiMint config files into eLog
Requirements for our eLog approach – IExtended Functionality
Start from the existing eLog at DESY (TTF-Version)
Keeping the following ideas: Write messages, screen dumps and files through
central print queues (survive database downtimes) Use Web interface to add and to edit entries Use Servlets to retrieve data from the eLog and to
prepare Web displays.
Keep the XSLT style sheet to generate the Web edit page
Requirements for our eLog approach – IINew Functionality
Access and display of multiple eLog sources. Storing messages, screen dumps (JPG) and any kind of
files into an Oracle database. (Rather than XML files) Support links between messages Support for entries and screen dumps on Unix and
Windows (Windows: bypassing default PostScript printer driver)
Support command line entries. Write from applications
Web Client
eLogbooksServlet:ListEntry
Applet set:-eLogbook(s)-From time-To time-Shift
Text+
Images
Preparerequest
andinsertentry
invector
Read/Write
Classesextending LogBook
Read
Read
Read
Read
Text
Text
preparehtml
SortedVector Oracle
eLog
MKS-1MKS-2MKS-3MKS-4KRYO
.
.
OracleMKK
OracleIT-News
TINEEvents
XMLeLogsText
eLogbook: Mutiple Sources
Tomcat
ExampleThe Applet
Select one or more logbooks
Select defined time span
Type in from and to time
Select shift of ‚from‘ day
Entrer search string for:Author or
subject or text.
ExampleThe Web Page
The selected log books
Automatically entered text file
The selected from/ to time
Add new entry to your logbook
Select your default logbook
for entries
Entry with screen dump
Ascending / decending
Add new entry to your log book with
reference to this entry.
Goto the linked entry
Edit this entry (if allowed)
Statistical Information:(MySql local on Tomcat
Server)
Online help
Web ClientTomcat
eLogbooksServlet:ModifyEntry
Html-Link:Activate ServletWith entry ID
Text+
Images
Preparerequest
andInsert
singleentry
invector
Read/Write
Classesextending LogBook
Read
Read
Read
Read
Text
Text
XMLTranslator
SingleEntry
OracleeLog
MKS-1MKS-2MKS-3MKS-4KRYO
.
.
OracleMKK
OracleIT-News
TINEEvents
XMLeLogsText
eLogbook Edit Display (read)
prepareXML
XSLStylesheet
Edit Buttondepending on
write access to source
Web Client
CenrtalOracleServer
PrinterSpooler
Read and Write from/to eLogbook
TomcatServletServletServletServlet
Central
Remote
print2oracle
Windows UnixCapone epicsmenu
(Tcl/tk)
Print to queue:oraclelog
Unix also allows to print tooraclelog through theCommand line interface(lpr –Poraclelog MKS-2:030612-12:00:00.txt)
IntegratingeLog <-> JoiMint
Create entries in JoiMint and save them into the eLog (Oracle)
Save JoiMint config files and/or config+data files into eLog
Create html links with the MIME type <JOI> and start JoiMint from eLog entries
JoiMint config file: (dynamically created by servlet)<?xml version='1.0' encoding='UTF-8'?>
<config>
<X arg='100'/>
<Y arg='100'/>
<ScrollWidth arg='455'/>
<ScrollHeight arg='580'/>
<Width arg='480'/>
<Height arg='637'/>
<object type='JoiDataLogger'>
<Y arg='130'/>
<Width arg='425'/>
<Height arg='425'/>
<Link0 arg='KRYKSRV/SenderstrHEPHF/AusgangsstrIac/DATA'/>
<Link1 arg='KRYKSRV/SenderstrHEPHF/AusgangsstrIdc/DATA'/>
<Link2 arg='KRYKSRV/SenderstrHEPHF/AusgangsspgUdc/DATA'/>
<Link3 arg='KRYKSRV/SenderstrHEPHF/PulssperrePb/DATA'/>
<Event arg='Sat 14.06.2003 18:15:38'/>
</object>
<object type='JoiTextField'>
<Value arg='TINE Event Display'/>
<X arg='65'/>
<Y arg='5'/>
<Width arg='340'/>
<Height arg='40'/>
<FontStyle arg='Bold'/>
<FontSize arg='24'/>
<Alignment arg='Center'/>
</object>
From http-link to JoiMint DisplayLink:
http://krykpcn.desy.de:8080/examples/servlet/eLogbook.GetJoiEvent?
EVENT_N=1055491723&
ARCHIVE_S=KRYKSRV&
DEVICE_S=SenderstrHENL&
ID=EVENT:030613-10:08:43.joi
JoiMint config file: (dynamically created by servlet)<?xml version='1.0' encoding='UTF-8'?>
<config>
<X arg='100'/>
<Y arg='100'/>
<ScrollWidth arg='455'/>
<ScrollHeight arg='580'/>
<Width arg='480'/>
<Height arg='637'/>
<object type='JoiDataLogger'>
<Y arg='130'/>
<Width arg='425'/>
<Height arg='425'/>
<Link0 arg='KRYKSRV/SenderstrHEPHF/AusgangsstrIac/DATA'/>
<Link1 arg='KRYKSRV/SenderstrHEPHF/AusgangsstrIdc/DATA'/>
<Link2 arg='KRYKSRV/SenderstrHEPHF/AusgangsspgUdc/DATA'/>
<Link3 arg='KRYKSRV/SenderstrHEPHF/PulssperrePb/DATA'/>
<Event arg='Sat 14.06.2003 18:15:38'/>
</object>
<object type='JoiTextField'>
<Value arg='TINE Event Display'/>
<X arg='65'/>
<Y arg='5'/>
<Width arg='340'/>
<Height arg='40'/>
<FontStyle arg='Bold'/>
<FontSize arg='24'/>
<Alignment arg='Center'/>
</object>
TINEData
Web ClientTomcat
eLogbooks
Html-Link:Including:Archive-ServerDeviceServerEvent-Number
eLogbook Display JoiMint Event Displays
PrepareJoi-File
WithArchive-ServerDeviceServer
Event-Number
Send htmlImage
(Joi-File)With
MIMEHeader
Servlet:GetJoiEvent
JoiMint fileWith JOI
MIME type
StartMIME
Application
JoiMintServlet:
ListEntry
ReadLink
Information
Classesextending LogBook
Create html + Link Read
TINEEvents
Step I
Step II
Experience
Tomcat is just stable (no crashes ever) Oracle performance extremely good
Oracle server in computing center Performance @ DESY:
~ 50 images @ 100k ... Which implies 51 interactions with Oracle server ... in 2 sec
100 messages (text) from 5 log books (5 interactions) ... in 1-2 sec
(limits: 50 images / 100 messages configured in config class)
Plans - I:
Add alarms: Use existing alh-> Oracle functionality and write
alarms directly into Oracle Query alarms in eLog Create http links for:
JoiMint -> archive data JoiMint -> alarm settings ...