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Margus Roo –

If you're inventing and pioneering, you have to be willing to be misunderstood for long periods of time

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Category: IT

Uskumatu kuhu raudvara on jõudnud

Posted on February 26, 2013 by margusja

Üks pilt minu harilikust igapäevasest töömasinast

Screen Shot 2013-02-26 at 9.32.43 AM

 

Posted in IT

JBPM console how to attach your custom form template to your custom process

Posted on February 10, 2013 - February 10, 2013 by margusja

If you are playing with jbpm_cosole like I am then the of of the first question will be – how can I attach my own form template (ftl).

Why I did not use guvnor? The reasone was that it did not work on my environment – Mac Os X and I also tried on Centos 6.x. I was getting all the time I started Jboss server to log:

14:08:30,328 INFO  [org.drools.repository.RulesRepositoryConfigurator] (http-localhost-127.0.0.1-8080-12) Creating an instance of the RulesRepositoryConfigurator.

14:08:33,202 INFO  [stdout] (http-localhost-127.0.0.1-8080-12) =============== session-admin-4

14:08:33,826 ERROR [org.jbpm.integration.console.shared.GuvnorConnectionUtils] (http-localhost-127.0.0.1-8080-8) Error retriving packages from guvnor: Invalid argument

So I discovered where jbpm_console looking for form templates and the place was – WEB-INF/lib/ on the deployed jbpm-gwt-console-server.war

* I created form template for my task – DemoHumanTask.ftl (DemoHumanTask – taskname in bpmn), process start form template – com.sample.demo.bpmn.ftl (com.sample.demo.bpmn is process id)

* make jar :

margusja@IRack:~/Downloads/jbpm-installer/jboss-as-7.1.1.Final/standalone/dev_war/dev_jar/margusja$ jar cvf MargusjademoProcess.jar .
added manifest
adding: com.sample.demo.bpmn.ftl(in = 317) (out= 212)(deflated 33%)
adding: DemoHumanTask.ftl(in = 1418) (out= 487)(deflated 65%)

* go back to the place where did you unpack your jbpm-gwt-console-server.war and copy created jar file to the right place:

cp ./dev_jar/margusja/MargusjademoProcess.jar ./WEB-INF/lib/

* update jbpm-gwt-console-server.war file

margusja@IRack:~/Downloads/jbpm-installer/jboss-as-7.1.1.Final/standalone/dev_war$ jar uvf jbpm-gwt-console-server.war WEB-INF/lib/MargusjademoProcess.jar
adding: WEB-INF/lib/MargusjademoProcess.jar(in = 7722) (out= 7396)(deflated 4%)

* copy updated war file to the jboss deployments directory

* restart jboss server (they say that jboss should handle on the fly new deployed wars but in my case I got errors)

* after restart I managed to see new forms generated from my form templates:

Screen Shot 2013-02-10 at 4.01.25 PM Screen Shot 2013-02-10 at 4.01.41 PM Screen Shot 2013-02-10 at 4.12.41 PM

Posted in ITTagged JBPM2 Comments

JBPM console – edit default form template (DefaultTask.ftl)

Posted on February 10, 2013 - February 10, 2013 by margusja

My first coal was create own form template to my process.

But I managed to change defaultTask template and demo process’ task (Performance Evaluation.ftl)  template.

Make backup from original jbpm-gwt-console-server.war – otherwise if you mess up your war file you have to install all the jboss server again.

* copy jbpm-gwt-console-server.war somewhere you can play with it. in my example iI put it /Users/margusja/Downloads/jbpm-installer/jboss-as-7.1.1.Final/standalone/dev_war

* unpack your war – jar xvf jbpm-gwt-console-server.war

* You will find WEB-INF/lib/jbpm-gwt-form-5.4.0.Final.jar

* copy it somewhere where you can play with it – in my case I created a new directory : dev_jar and copied it there

* cd into your new directory and unpack jar – jar xvf jbpm-gwt-form-5.4.0.Final.jar

* You will find form templates like DefaultTask.ftl, Performance Evaluation.ftl and com.sample.evaluation.ftl

* modify them like you wish fish – Do not change Form action

* pack the stuff again to the jar:

margusja@IRack:~/Downloads/jbpm-installer/jboss-as-7.1.1.Final/standalone/dev_war/dev_jar/dev_jbpm-gwt-form$ jar cvf jbpm-gwt-form-5.4.0.Final.jar .
added manifest
adding: classlist.mf(in = 282) (out= 101)(deflated 64%)
adding: com.sample.evaluation.ftl(in = 346) (out= 231)(deflated 33%)
adding: DefaultTask.ftl(in = 281) (out= 197)(deflated 29%)
adding: FormBuilder.properties(in = 61) (out= 54)(deflated 11%)
ignoring entry META-INF/
ignoring entry META-INF/MANIFEST.MF
adding: META-INF/maven/(in = 0) (out= 0)(stored 0%)
adding: META-INF/maven/org.jbpm/(in = 0) (out= 0)(stored 0%)
adding: META-INF/maven/org.jbpm/jbpm-gwt-form/(in = 0) (out= 0)(stored 0%)
adding: META-INF/maven/org.jbpm/jbpm-gwt-form/pom.properties(in = 112) (out= 108)(deflated 3%)
adding: META-INF/maven/org.jbpm/jbpm-gwt-form/pom.xml(in = 1319) (out= 422)(deflated 68%)
adding: META-INF/services/(in = 0) (out= 0)(stored 0%)
adding: META-INF/services/org.jboss.bpm.console.server.plugin.FormDispatcherPlugin(in = 58) (out= 56)(deflated 3%)
adding: org/(in = 0) (out= 0)(stored 0%)
adding: org/jbpm/(in = 0) (out= 0)(stored 0%)
adding: org/jbpm/integration/(in = 0) (out= 0)(stored 0%)
adding: org/jbpm/integration/console/(in = 0) (out= 0)(stored 0%)
adding: org/jbpm/integration/console/forms/(in = 0) (out= 0)(stored 0%)
adding: org/jbpm/integration/console/forms/AbstractFormDispatcher$1.class(in = 1700) (out= 782)(deflated 54%)
adding: org/jbpm/integration/console/forms/AbstractFormDispatcher.class(in = 6061) (out= 2703)(deflated 55%)
adding: org/jbpm/integration/console/forms/ConfigurationUtils.class(in = 3788) (out= 1906)(deflated 49%)
adding: org/jbpm/integration/console/forms/FormDispatcherComposite$1.class(in = 982) (out= 527)(deflated 46%)
adding: org/jbpm/integration/console/forms/FormDispatcherComposite.class(in = 2073) (out= 872)(deflated 57%)
adding: org/jbpm/integration/console/forms/ProcessFormDispatcher.class(in = 1250) (out= 584)(deflated 53%)
adding: org/jbpm/integration/console/forms/TaskFormDispatcher.class(in = 4070) (out= 2002)(deflated 50%)
adding: Performance Evaluation.ftl(in = 1461) (out= 500)(deflated 65%)

* go back where did you unpacked your war file

* copy new jar file to the right place – cp ./dev_jar/dev_jbpm-gwt-form/jbpm-gwt-form-5.4.0.Final.jar ./WEB-INF/lib/jbpm-gwt-form-5.4.0.Final.jar

* update your original war – jar uvf jbpm-gwt-console-server.war WEB-INF/lib/jbpm-gwt-form-5.4.0.Final.jar

* put a updated war to jboss deployments/ directory – cp jbpm-gwt-console-server.war ../deployments/

In my case I restarted jboss and after it started up I logged to jbpm_console: http://localhost:8080/jbpm-console/ and opened user task I saw that my changes I made are deployed :

Screen Shot 2013-02-10 at 3.20.21 PM Screen Shot 2013-02-10 at 3.20.37 PM

Posted in ITTagged JBPMLeave a comment

JBPM2 – deploy a new process into JBoss server

Posted on February 5, 2013 - February 7, 2013 by margusja

…
Create jar from your assets
Create war from jar (jar cvf name.war [jar file])
Put it into JBoss deployments directory
Into JBoss server log have to appear something like
16:34:43,931 INFO [org.jboss.as.server.deployment] (MSC service thread 1-3) JBAS015876: Starting deployment of “YOURWARNAME.war”
16:34:44,057 INFO [org.jboss.web] (MSC service thread 1-3) JBAS018210: Registering web context: /YOURPROCESS
16:34:44,086 INFO [org.jboss.as.server] (DeploymentScanner-threads – 1) JBAS018559: Deployed “YOURWARNAME.war”

Copy your bpmn file to the right place. Right place you can find from jbpm-installer build.xml ( -Djbpm.console.directory )
cat build.xml | grep “Djbpm.console.directory”
in my case cp ../../Documents/workspace/drools_process_hello_world/src/main/java/com/sample2/DemoProcess.bpmn ./sample/evaluation/src/main/resources/ – Tegelikult piisab protsessi alustamiseks JBPM serveris (GUI http://127.0.0.1:8080/jbpm-console) ainult bpmn faili kopeerimisest.

ant stop.demo
ant start.demo

login your jbpm-console/ and open Process Overview -> Refresh and you will (if all previous steps are correct) your new process.

Start it.

 

 

Screen Shot 2013-02-05 at 5.15.48 PM

 

My process is very simpel. Only prints text to console.
Screen Shot 2013-02-05 at 5.16.00 PM

Screen Shot 2013-02-05 at 5.16.33 PM

…

Kui tegu on human taskiga, siis peaks saama protsessi käivitada ja jbpm-console peal nägema, et protsess käib.

Lisaks, kui task in/out actionisse on kirjutatud debug – System.out.println(“mingi debug infi”); siis peaks ka see olema näha jboss serveri logis.

Screen Shot 2013-02-07 at 9.21.11 PM

Posted in ITTagged JBPM

Tehniline Eesti keel on ilus

Posted on December 7, 2012 by margusja

Näide, kui ilus, arusaadav nii sülelapsele kui ka vanurile on Eesti keel

Jah, mina olen selle vastu, et kõik tehniline sõnavara eestistatakse.

Posted in Fun, IT

Openssl symetric and asymetric encrypt-decrypt ja signeerimise howto

Posted on November 3, 2012 - October 19, 2013 by margusja

Asümeetriline:

1. Loo võtmepaar

openssl genrsa -out private.pem 1024

openssl rsa -in private.pem -out public.pem -outform PEM -pubout

2. Jaga oma avaliku võtit partneriga

3. Partner krüpteerib avaliku võtmega

openssl rsautl -encrypt -inkey public.pem -pubin -in file.txt -out file.ssl

4.  Ava salajase võtmega

openssl rsautl -decrypt -inkey private.pem -in file.ssl -out decrypted.txt

Sümeetriline:

Krüpteerimine

openssl aes-256-cbc -salt -a -e -in saladus.txt -out encrypted.txt
enter aes-256-cbc encryption password:
Verifying – enter aes-256-cbc encryption password:

Dešifreerimiseks:

openssl aes-256-cbc -salt -a -d -in encrypted.txt -out plaintext.txt
enter aes-256-cbc decryption password:

Signeerimine:

Allkirjastame

openssl rsautl -sign -in saladus.txt -out saladus.signed -inkey private.pem

Partner saab kontrollida

openssl rsautl -verify -in saladus.signed -out saladus.verified -pubin -inkey public.pem

Räsi genereerimiseks on tänaseks MD5 saatanast 128b on ilmselgelt liialt vähe.

> openssl sha1 saladus.txt

või

> shasum -a 256 saladus.txt

Posted in IT, Linux

.htaccess how to allow one IP and deny others

Posted on September 20, 2012 by margusja
Order deny,allow 
Deny from all 
AuthType Basic 
AuthUserFile /www/.site_htpasswd 
AuthName "Protected Area" 
require valid-user 
Allow from 1.2.3.4 2.3.4.5
Satisfy Any
Posted in IT

R and neural network package neuralnet

Posted on September 10, 2012 by margusja

Posted in ITTagged R

Now I can make graphs from my home temperature

Posted on September 10, 2012 by margusja

Posted in IT

mdadm how to repair degraded raid device

Posted on March 6, 2012 - March 6, 2012 by margusja


[16:55:57 root@xen1 ~ :/root]# mdadm --detail /dev/md2
/dev/md2:
Version : 0.90
Creation Time : Wed Apr 13 13:26:33 2011
Raid Level : raid1
Array Size : 9213120 (8.79 GiB 9.43 GB)
Used Dev Size : 9213120 (8.79 GiB 9.43 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 2
Persistence : Superblock is persistent

Update Time : Tue Mar 6 16:55:41 2012
State : clean, degraded
Active Devices : 1
Working Devices : 1
Failed Devices : 1
Spare Devices : 0

UUID : c19b28c1:ecbdf4f8:1a597600:a2292b4d
Events : 0.55948

Number Major Minor RaidDevice State
0 8 1 0 active sync /dev/sda1
1 0 0 1 removed

2 8 17 - faulty spare /dev/sdb1

[16:56:01 root@xen1 ~ :/root]# mdadm --remove /dev/md2 /dev/sdb1
mdadm: hot removed /dev/sdb1
[16:56:37 root@xen1 ~ :/root]# mdadm --detail /dev/md2
/dev/md2:
Version : 0.90
Creation Time : Wed Apr 13 13:26:33 2011
Raid Level : raid1
Array Size : 9213120 (8.79 GiB 9.43 GB)
Used Dev Size : 9213120 (8.79 GiB 9.43 GB)
Raid Devices : 2
Total Devices : 1
Preferred Minor : 2
Persistence : Superblock is persistent

Update Time : Tue Mar 6 16:56:37 2012
State : clean, degraded
Active Devices : 1
Working Devices : 1
Failed Devices : 0
Spare Devices : 0

UUID : c19b28c1:ecbdf4f8:1a597600:a2292b4d
Events : 0.55948

Number Major Minor RaidDevice State
0 8 1 0 active sync /dev/sda1
1 0 0 1 removed

[16:56:40 root@xen1 ~ :/root]# mdadm --add /dev/md2 /dev/sdb1
mdadm: re-added /dev/sdb1
[16:57:08 root@xen1 ~ :/root]# mdadm --detail /dev/md2
/dev/md2:
Version : 0.90
Creation Time : Wed Apr 13 13:26:33 2011
Raid Level : raid1
Array Size : 9213120 (8.79 GiB 9.43 GB)
Used Dev Size : 9213120 (8.79 GiB 9.43 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 2
Persistence : Superblock is persistent

Update Time : Tue Mar 6 16:57:06 2012
State : clean, degraded, recovering
Active Devices : 1
Working Devices : 2
Failed Devices : 0
Spare Devices : 1

Rebuild Status : 2% complete

UUID : c19b28c1:ecbdf4f8:1a597600:a2292b4d
Events : 0.55948

Number Major Minor RaidDevice State
0 8 1 0 active sync /dev/sda1
1 8 17 1 spare rebuilding /dev/sdb1

Posted in IT

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