4:33 p.m.
Matus Majchrak [http://community.jboss.org/people/dekadence] created the discussion
"Re: jbpm, process definitions, jboss - looking for knowledge"
To view the discussion, visit: http://community.jboss.org/message/596844#596844
--------------------------------------------------------------
Hi Piotr,
First things first, In order to access process definitions you have to have access to the
guvnor repository(or fake it as Jbpm5 demo does using -Djbpm.console.directory)
KnowledgeAgent kagent = KnowledgeAgentFactory.newKnowledgeAgent("Guvnor
default");
kagent.applyChangeSet(ResourceFactory.newClassPathResource("ChangeSet.xml"));
kagent.monitorResourceChangeEvents(false);
KnowledgeBase kbase = kagent.getKnowledgeBase();
ChangeSet.xml file will direct the knowledge agent to resources it should care about. For
example:
<change-set xmlns='http://drools.org/drools-5.0/change-set'
xmlns:xs='http://www.w3.org/2001/XMLSchema-instance'
xs:schemaLocation='http://drools.org/drools-5.0/change-set
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/...
>
<add>
<resource
source='http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defaultPackage/LATEST'
type='PKG' basicAuthentication="enabled" username="admin"
password="admin" />
</add>
</change-set>
This will tell your agent to look for your localhost's repository default package.
Try to deploy some processes into default package so that you have something to work with:
http://people.redhat.com/kverlaen/jBPM5-guvnor-integration.swf
http://people.redhat.com/kverlaen/jBPM5-guvnor-integration.swf
You can now test it by listing deployed processes:
for (Process process : kbase.getProcesses()) {
System.out.println("I found process in Guvnor: " + process.getId());
}
Now for the knowledgeSession.Depending on where does your application run, you have to
obtain an EntityManagerFactory for drools persistence.
See the persistence.xml in jbpm5-installers/db folder.
EntityManagerFactory emf =
Persistence.createEntityManagerFactory("org.drools.persistence.jpa");
Environment env = KnowledgeBaseFactory.newEnvironment();
env.set(EnvironmentName.ENTITY_MANAGER_FACTORY, emf);
Properties properties = new Properties();
properties.put("drools.processInstanceManagerFactory","org.jbpm.persistence.processinstance.JPAProcessInstanceManagerFactory");
properties.put("drools.processSignalManagerFactory","org.jbpm.persistence.processinstance.JPASignalManagerFactory");
KnowledgeSessionConfiguration config =
KnowledgeBaseFactory.newKnowledgeSessionConfiguration(properties);
kSession = JPAKnowledgeService.loadStatefulKnowledgeSession(1, kbase, config, env);
The above code will try to load an existing Statefull knowledge session. If this does not
exsit you will receive an error and you have to create a fresh kSession like this:
env = KnowledgeBaseFactory.newEnvironment();
env.set(EnvironmentName.ENTITY_MANAGER_FACTORY, emf);
kSession = JPAKnowledgeService.newStatefulKnowledgeSession(kbase, config, env);
And thats basicaly it. You can now get a list of processes:
knowledgeSession.getKnowledgeBase().getProcesses()
register a ProcessEventListener to intercept process lifecycle events:
knowledgeSession.addEventListener(... your class implementing ProcessEventListener)
or get list of process instances:
knowledgeSession.getProcessInstances();
So basicaly you have to hook up your application to guvnor to access process related
resources and obtain JPA entity management factory to be able to construct or obtain
knowledge session. After that, you should have all the thigs you need to fulfill your
tasks.
regards
matus
--------------------------------------------------------------
Reply to this message by going to Community
[http://community.jboss.org/message/596844#596844]
Start a new discussion in jBPM at Community
[http://community.jboss.org/choose-container!input.jspa?contentType=1&...]
1:52 p.m.
Piotr Tempes [http://community.jboss.org/people/carek] created the discussion
"Re: jbpm, process definitions, jboss - looking for knowledge"
To view the discussion, visit: http://community.jboss.org/message/597136#597136
--------------------------------------------------------------
one hundred thanks to you for this really great tutorial. I guess I'm now one step
from reaching my target. However there's still one problem I can't handle - the
persistence layer. Maybe stack trace first:
[code]
[2011:03:90 22:03:122:info] ResourceChangeNotification created
[2011:03:90 22:03:132:info] ResourceChangeScanner reconfigured with interval=60
[2011:03:90 22:03:132:info] ResourceChangeScanner created with default interval=60
[2011:03:90 22:03:132:debug] ResourceChangeNotification monitor added
monitor=org.drools.io.impl.ResourceChangeScannerImpl@15a0305
[2011:03:90 22:03:134:debug] KnowledgeAgent building resource map
[2011:03:90 22:03:135:info] KnowledgeAgent created, with configuration:
monitorChangeSetEvents=true scanResources=true scanDirectories=true newInstance=true
[2011:03:90 22:03:140:info] KnowledgeAgent has started listening for ChangeSet
notifications
(null: 3, 183): schema_reference.4: Failed to read schema document '
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/...
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/...;,
because 1) could not find the document; 2) the document could not be read; 3) the root
element of the document is not <xsd:schema>.
(null: 3, 183): cvc-elt.1: Cannot find the declaration of element 'change-set'.
(null: 4, 10): schema_reference.4: Failed to read schema document '
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/...
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/...;,
because 1) could not find the document; 2) the document could not be read; 3) the root
element of the document is not <xsd:schema>.
(null: 5, 196): schema_reference.4: Failed to read schema document '
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/...
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/...;,
because 1) could not find the document; 2) the document could not be read; 3) the root
element of the document is not <xsd:schema>.
[2011:03:90 22:03:565:info] KnowledgeAgent applying ChangeSet
[2011:03:90 22:03:578:debug] KnowledgeAgent notifier subscribing to resource=[UrlResource
path='
http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defa...
http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defa...]
[2011:03:90 22:03:579:debug] ResourceChangeNotification subscribing
listener=org.drools.agent.impl.KnowledgeAgentImpl@ad8659 to resource=[UrlResource
path='
http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defa...
http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defa...]
[2011:03:90 22:03:579:debug] ResourceChangeScanner subcribing
notifier=org.drools.io.impl.ResourceChangeNotifierImpl@4f459c to resource=[UrlResource
path='
http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defa...
http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defa...]
[2011:03:90 22:03:580:debug] KnowledgeAgent rebuilding KnowledgeBase using ChangeSet
[2011:03:90 22:03:444:debug] KnowledgeAgent obtaining pkg resource=[UrlResource path='
http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defa...
http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defa...]
[2011:03:90 22:03:445:debug] KnowledgeAgent adding KnowledgeDefinitionsPackage
defaultPackage
[2011:03:90 22:03:461:info] KnowledgeAgent new KnowledgeBase now built and in use
[2011:03:90 22:03:461:debug] KnowledgeAgent finished rebuilding KnowledgeBase using
ChangeSet
[2011:03:90 22:03:462:debug] KnowledgeAgent unsubscribing from resource=[UrlResource
path='
http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defa...
http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defa...]
[2011:03:90 22:03:462:debug] ResourceChangeNotification unsubscribing
listener=org.drools.agent.impl.KnowledgeAgentImpl@ad8659 to resource=[UrlResource
path='
http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defa...
http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defa...]
[2011:03:90 22:03:462:debug] ResourceChangeScanner unsubcribing
notifier=org.drools.io.impl.ResourceChangeNotifierImpl@4f459c to resource=[UrlResource
path='
http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defa...
http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defa...]
[2011:03:90 22:03:462:debug] ResourceChangeScanner resource=[UrlResource path='
http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defa...
http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defa...]
now has no subscribers
[2011:03:90 22:03:463:info] KnowledgeAgent has stopped listening for ChangeSet
notifications
jbpm.console.directory property not found
Loading process from file system: Evaluation.bpmn
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder
http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Exception in thread "main" java.lang.RuntimeException: Could not initialize
stateful knowledge session: [PersistenceUnit: org.drools.persistence.jpa] Unable to build
EntityManagerFactory
at
org.jbpm.integration.console.CommandDelegate.newStatefulKnowledgeSession(CommandDelegate.java:179)
at org.jbpm.integration.console.CommandDelegate.getSession(CommandDelegate.java:187)
at org.jbpm.integration.console.CommandDelegate.<init>(CommandDelegate.java:70)
at org.jbpm.integration.console.CommandDelegate.main(CommandDelegate.java:293)
Caused by: javax.persistence.PersistenceException: [PersistenceUnit:
org.drools.persistence.jpa] Unable to build EntityManagerFactory
at
org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:677)
at
org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:126)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:52)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:34)
at
org.jbpm.integration.console.CommandDelegate.newStatefulKnowledgeSession(CommandDelegate.java:125)
... 3 more
Caused by: org.hibernate.HibernateException: Could not find datasource
at
org.hibernate.connection.DatasourceConnectionProvider.configure(DatasourceConnectionProvider.java:79)
at
org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:137)
at
org.hibernate.ejb.InjectionSettingsFactory.createConnectionProvider(InjectionSettingsFactory.java:29)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:89)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2101)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1325)
at
org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:867)
at
org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:669)
... 7 more
Caused by: javax.naming.CommunicationException: Receive timed out [Root exception is
java.net.SocketTimeoutException: Receive timed out]
at org.jnp.interfaces.NamingContext.discoverServer(NamingContext.java:1678)
at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1795)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:693)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:686)
at javax.naming.InitialContext.lookup(InitialContext.java:409)
at
org.hibernate.connection.DatasourceConnectionProvider.configure(DatasourceConnectionProvider.java:75)
... 14 more
Caused by: java.net.SocketTimeoutException: Receive timed out
at java.net.PlainDatagramSocketImpl.receive0(Native Method)
at
java.net.AbstractPlainDatagramSocketImpl.receive(AbstractPlainDatagramSocketImpl.java:135)
at java.net.DatagramSocket.receive(DatagramSocket.java:729)
at org.jnp.interfaces.NamingContext.discoverServer(NamingContext.java:1647)
... 19 more
[/code]
I have no idea why the database couldn't be reached... I started h2 and I can access
it through let's say jpa plugin in eclipse, I started jboss. Configuration files I
took from db directory in jboss. Here they are:
META-INF/persistence.xml:
[code]
<?xml version="1.0" encoding="UTF-8"
standalone="yes"?>
<persistence version="1.0"
xsi:schemaLocation=" http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd
http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd
http://java.sun.com/xml/ns/persistence/orm
http://java.sun.com/xml/ns/persistence/orm
http://java.sun.com/xml/ns/persistence/orm_1_0.xsd
http://java.sun.com/xml/ns/persistence/orm_1_0.xsd"
xmlns:orm=" http://java.sun.com/xml/ns/persistence/orm
http://java.sun.com/xml/ns/persistence/orm"
xmlns:xsi=" http://www.w3.org/2001/XMLSchema-instance
http://www.w3.org/2001/XMLSchema-instance"
xmlns=" http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence">
<persistence-unit name="org.drools.persistence.jpa"
transaction-type="JTA">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>java:jdbc/testDS1</jta-data-source>
<!-- <jta-data-source>jdbc:h2:tcp://localhost/~/test</jta-data-source>
-->
<class>org.jbpm.persistence.processinstance.ProcessInstanceInfo</class>
<class>org.drools.persistence.info.SessionInfo</class>
<class>org.drools.persistence.info.WorkItemInfo</class>
<properties>
<property name="hibernate.dialect"
value="org.hibernate.dialect.H2Dialect"/>
<property name="hibernate.max_fetch_depth" value="3"/>
<property name="hibernate.hbm2ddl.auto" value="create" />
<property name="hibernate.show_sql" value="false" />
<property name="hibernate.transaction.manager_lookup_class"
value="org.hibernate.transaction.JBossTransactionManagerLookup" />
</properties>
</persistence-unit>
</persistence>
[/code]
hibernate.cfg.xml:
[code]
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
" http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd
http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property
name="connection.driver_class">org.h2.Driver</property>
<property
name="connection.url">jdbc:h2:tcp://localhost/~/test</property>
<!--property
name="connection.url">jdbc:h2:file:/NotBackedUp/data/mydb</property-->
<property name="connection.username">sa</property>
<property name="connection.password"></property>
<property name="connection.pool_size">1</property>
<property
name="dialect">org.hibernate.dialect.H2Dialect</property>
<property
name="current_session_context_class">thread</property>
<property
name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>
<property name="show_sql">false</property>
<property name="hbm2ddl.auto">create</property>
<mapping resource="AuditLog.hbm.xml"/>
</session-factory>
</hibernate-configuration>
[/code]
and from jboss db directory testDS1-ds.xml:
[code]
<?xml version="1.0" encoding="UTF-8"?>
<datasources>
<local-tx-datasource>
<jndi-name>jdbc/testDS1</jndi-name>
<connection-url>jdbc:h2:tcp://localhost/~/test</connection-url>
<!--connection-url>jdbc:h2:mem:mydb</connection-url-->
<driver-class>org.h2.jdbcx.JdbcDataSource</driver-class>
<user-name>sa</user-name>
<password></password>
</local-tx-datasource>
</datasources>
[/code]
--------------------------------------------------------------
Reply to this message by going to Community
[http://community.jboss.org/message/597136#597136]
Start a new discussion in jBPM at Community
[http://community.jboss.org/choose-container!input.jspa?contentType=1&...]
3:10 a.m.
Piotr Tempes [http://community.jboss.org/people/carek] created the discussion
"Re: jbpm, process definitions, jboss - looking for knowledge"
To view the discussion, visit: http://community.jboss.org/message/597342#597342
--------------------------------------------------------------
one hundred thanks for tutorial. Now I am struggling with access to my datasource... My
goal is to reach it from standalone application. Here's what I got when I try to get
through this line of code:
EntityManagerFactory emf =
Persistence.createEntityManagerFactory("org.drools.persistence.jpa");
Exception in thread "main" java.lang.RuntimeException: Could not initialize
stateful knowledge session: [PersistenceUnit: org.drools.persistence.jpa] Unable to build
EntityManagerFactory
at
org.jbpm.integration.console.CommandDelegate.newStatefulKnowledgeSession(CommandDelegate.java:179)
at org.jbpm.integration.console.CommandDelegate.getSession(CommandDelegate.java:187)
at org.jbpm.integration.console.CommandDelegate.<init>(CommandDelegate.java:70)
at org.jbpm.integration.console.CommandDelegate.main(CommandDelegate.java:293)
Caused by: javax.persistence.PersistenceException: [PersistenceUnit:
org.drools.persistence.jpa] Unable to build EntityManagerFactory
at
org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:677)
at
org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:126)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:52)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:34)
at
org.jbpm.integration.console.CommandDelegate.newStatefulKnowledgeSession(CommandDelegate.java:125)
... 3 more
Caused by: org.hibernate.HibernateException: Could not find datasource
at
org.hibernate.connection.DatasourceConnectionProvider.configure(DatasourceConnectionProvider.java:79)
at
org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:137)
at
org.hibernate.ejb.InjectionSettingsFactory.createConnectionProvider(InjectionSettingsFactory.java:29)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:89)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2101)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1325)
at
org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:867)
at
org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:669)
... 7 more
Caused by: javax.naming.CommunicationException: Receive timed out [Root exception is
java.net.SocketTimeoutException: Receive timed out]
at org.jnp.interfaces.NamingContext.discoverServer(NamingContext.java:1678)
at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1795)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:693)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:686)
at javax.naming.InitialContext.lookup(InitialContext.java:409)
at
org.hibernate.connection.DatasourceConnectionProvider.configure(DatasourceConnectionProvider.java:75)
... 14 more
Caused by: java.net.SocketTimeoutException: Receive timed out
at java.net.PlainDatagramSocketImpl.receive0(Native Method)
at
java.net.AbstractPlainDatagramSocketImpl.receive(AbstractPlainDatagramSocketImpl.java:135)
at java.net.DatagramSocket.receive(DatagramSocket.java:729)
at org.jnp.interfaces.NamingContext.discoverServer(NamingContext.java:1647)
... 19 more
My configuration:
persistence.xml in eclipse:
<?xml version="1.0" encoding="UTF-8"
standalone="yes"?>
<persistence version="1.0"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd
http://java.sun.com/xml/ns/persistence/orm
http://java.sun.com/xml/ns/persistence/orm_1_0.xsd"
xmlns:orm="http://java.sun.com/xml/ns/persistence/orm"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/persistence">
<persistence-unit name="org.drools.persistence.jpa"
transaction-type="JTA">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>DefaultDS</jta-data-source>
<!-- <jta-data-source>jdbc:h2:tcp://localhost/~/test</jta-data-source>
-->
<class>org.jbpm.persistence.processinstance.ProcessInstanceInfo</class>
<class>org.drools.persistence.info.SessionInfo</class>
<class>org.drools.persistence.info.WorkItemInfo</class>
<properties>
<property name="hibernate.dialect"
value="org.hibernate.dialect.MySQLDialect"/>
<property name="hibernate.max_fetch_depth" value="3"/>
<property name="hibernate.hbm2ddl.auto" value="update" />
<property name="hibernate.show_sql" value="false" />
<property name="hibernate.transaction.manager_lookup_class"
value="org.hibernate.transaction.JBossTransactionManagerLookup" />
</properties>
</persistence-unit>
</persistence>
and hibernate.cfg.xml:
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
-//Hibernate/Hibernate Configuration DTD 3.0//EN
http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd>
<hibernate-configuration>
<session-factory>
<property
name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property
name="connection.url">jdbc:mysql://localhost:3306/jbossdb</property>
<!--property
name="connection.url">jdbc:h2:file:/NotBackedUp/data/mydb</property-->
<property name="connection.username">root</property>
<property name="connection.password"></property>
<property name="connection.pool_size">1</property>
<property
name="dialect">org.hibernate.dialect.MySQLDialect</property>
<property
name="current_session_context_class">thread</property>
<property
name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>
<property name="show_sql">true</property>
<property name="hbm2ddl.auto">update</property>
<!-- <mapping resource="AuditLog.hbm.xml"/> -->
</session-factory>
</hibernate-configuration>
and mysql-ds.xml
<?xml version="1.0" encoding="UTF-8"?>
<!-- See http://www.jboss.org/community/wiki/Multiple1PC for information about
local-tx-datasource -->
<!-- $Id: mysql-ds.xml 88948 2009-05-15 14:09:08Z jesper.pedersen $ -->
<!-- Datasource config for MySQL using 3.0.9 available from:
http://www.mysql.com/downloads/api-jdbc-stable.html
-->
<datasources>
<local-tx-datasource>
<jndi-name>DefaultDS</jndi-name>
<use-java-context>false</use-java-context>
<connection-url>jdbc:mysql://localhost:3306/jbossdb</connection-url>
<driver-class>com.mysql.jdbc.Driver</driver-class>
<user-name>root</user-name>
<password></password>
<exception-sorter-class-name>org.jboss.resource.adapter.jdbc.vendor.MySQLExceptionSorter</exception-sorter-class-name>
<!-- should only be used on drivers after 3.22.1 with "ping" support
<valid-connection-checker-class-name>org.jboss.resource.adapter.jdbc.vendor.MySQLValidConnectionChecker</valid-connection-checker-class-name>
-->
<!-- sql to call when connection is created
<new-connection-sql>some arbitrary sql</new-connection-sql>
-->
<!-- sql to call on an existing pooled connection when it is obtained from pool -
MySQLValidConnectionChecker is preferred for newer drivers
<check-valid-connection-sql>some arbitrary
sql</check-valid-connection-sql>
-->
<!-- corresponding type-mapping in the standardjbosscmp-jdbc.xml (optional) -->
<metadata>
<type-mapping>mySQL</type-mapping>
</metadata>
</local-tx-datasource>
</datasources>
jboss starts without errors and exception. In addition I got message:
06:07:44,421 INFO [WrapperDataSourceService] Bound ConnectionManager
'jboss.jca:service=DataSourceBinding,name=DefaultDS' to JNDI name
'DefaultDS'
Any idea why the datasource could not be found?
Thanks in advance
--------------------------------------------------------------
Reply to this message by going to Community
[http://community.jboss.org/message/597342#597342]
Start a new discussion in jBPM at Community
[http://community.jboss.org/choose-container!input.jspa?contentType=1&...]
2:28 p.m.
Matus Majchrak [http://community.jboss.org/people/dekadence] created the discussion
"Re: jbpm, process definitions, jboss - looking for knowledge"
To view the discussion, visit: http://community.jboss.org/message/597368#597368
--------------------------------------------------------------
Hi glad that helped a bit :) ., regarding the problem you encounter, there might be an
issue with connection to in-memory H2 instance from different JVM, Try to deploy your app
as EJB module to see if it works, or you can configure jbpm to use different DB - I saw a
post on the forum explaining the necessary steps(you probably have to modify the config
files in jbpm-installer/db and re-run the ant install.demo)
--------------------------------------------------------------
Reply to this message by going to Community
[http://community.jboss.org/message/597368#597368]
Start a new discussion in jBPM at Community
[http://community.jboss.org/choose-container!input.jspa?contentType=1&...]
3:35 p.m.
Piotr Tempes [http://community.jboss.org/people/carek] created the discussion
"Re: jbpm, process definitions, jboss - looking for knowledge"
To view the discussion, visit: http://community.jboss.org/message/597370#597370
--------------------------------------------------------------
thanks a lot for suggestion. Now I have changed database to mysql, but the problem still
remained... I found good article about changing java context to global jndi referance
here:
http://www.engfers.com/2008/08/07/exposing_accessing-jboss-jndi-objects_d...
http://www.engfers.com/2008/08/07/exposing_accessing-jboss-jndi-objects_d...
I followed instructions and only stacktrace changed:
[2011:04:92 09:04:506:info] ResourceChangeNotification created
[2011:04:92 09:04:515:info] ResourceChangeScanner reconfigured with interval=60
[2011:04:92 09:04:515:info] ResourceChangeScanner created with default interval=60
[2011:04:92 09:04:515:debug] ResourceChangeNotification monitor added
monitor=org.drools.io.impl.ResourceChangeScannerImpl@1cffeb4
[2011:04:92 09:04:521:debug] KnowledgeAgent building resource map
[2011:04:92 09:04:522:info] KnowledgeAgent created, with configuration:
monitorChangeSetEvents=true scanResources=true scanDirectories=true newInstance=true
[2011:04:92 09:04:531:info] KnowledgeAgent has started listening for ChangeSet
notifications
[2011:04:92 09:04:987:info] KnowledgeAgent applying ChangeSet
[2011:04:92 09:04:994:debug] KnowledgeAgent notifier subscribing to resource=[UrlResource
path='http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defaultPackage/LATEST']
[2011:04:92 09:04:995:debug] ResourceChangeNotification subscribing
listener=org.drools.agent.impl.KnowledgeAgentImpl@155d3a3 to resource=[UrlResource
path='http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defaultPackage/LATEST']
[2011:04:92 09:04:995:debug] ResourceChangeScanner subcribing
notifier=org.drools.io.impl.ResourceChangeNotifierImpl@1b994de to resource=[UrlResource
path='http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defaultPackage/LATEST']
[2011:04:92 09:04:995:debug] KnowledgeAgent rebuilding KnowledgeBase using ChangeSet
[2011:04:92 09:04:119:exception]
java.lang.RuntimeException: KnowledgeAgent exception while trying to deserialize
KnowledgeDefinitionsPackage
at
org.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(KnowledgeAgentImpl.java:732)
at
org.drools.agent.impl.KnowledgeAgentImpl.addResourcesToKnowledgeBase(KnowledgeAgentImpl.java:965)
at
org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(KnowledgeAgentImpl.java:774)
at
org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(KnowledgeAgentImpl.java:646)
at
org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:190)
at
org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:172)
at
org.jbpm.integration.console.CommandDelegate.newStatefulKnowledgeSession(CommandDelegate.java:78)
at org.jbpm.integration.console.CommandDelegate.getSession(CommandDelegate.java:187)
at org.jbpm.integration.console.CommandDelegate.<init>(CommandDelegate.java:70)
at org.jbpm.integration.console.CommandDelegate.main(CommandDelegate.java:293)
Caused by: java.io.FileNotFoundException:
http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defa...
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1401)
at org.drools.io.impl.UrlResource.grabStream(UrlResource.java:210)
at org.drools.io.impl.UrlResource.getInputStream(UrlResource.java:146)
at
org.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(KnowledgeAgentImpl.java:720)
... 9 more
[2011:04:92 09:04:122:debug] KnowledgeAgent obtaining pkg resource=[UrlResource
path='http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defaultPackage/LATEST']
[2011:04:92 09:04:123:exception]
java.lang.RuntimeException: KnowledgeAgent exception while trying to deserialize
KnowledgeDefinitionsPackage
at
org.drools.agent.impl.KnowledgeAgentImpl.addResourcesToKnowledgeBase(KnowledgeAgentImpl.java:993)
at
org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(KnowledgeAgentImpl.java:774)
at
org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(KnowledgeAgentImpl.java:646)
at
org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:190)
at
org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:172)
at
org.jbpm.integration.console.CommandDelegate.newStatefulKnowledgeSession(CommandDelegate.java:78)
at org.jbpm.integration.console.CommandDelegate.getSession(CommandDelegate.java:187)
at org.jbpm.integration.console.CommandDelegate.<init>(CommandDelegate.java:70)
at org.jbpm.integration.console.CommandDelegate.main(CommandDelegate.java:293)
Caused by: java.lang.NullPointerException
at
org.drools.agent.impl.KnowledgeAgentImpl.addResourcesToKnowledgeBase(KnowledgeAgentImpl.java:984)
... 8 more
[2011:04:92 09:04:125:info] KnowledgeAgent new KnowledgeBase now built and in use
[2011:04:92 09:04:126:debug] KnowledgeAgent finished rebuilding KnowledgeBase using
ChangeSet
[2011:04:92 09:04:126:debug] KnowledgeAgent unsubscribing from resource=[UrlResource
path='http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defaultPackage/LATEST']
[2011:04:92 09:04:126:debug] ResourceChangeNotification unsubscribing
listener=org.drools.agent.impl.KnowledgeAgentImpl@155d3a3 to resource=[UrlResource
path='http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defaultPackage/LATEST']
[2011:04:92 09:04:127:debug] ResourceChangeScanner unsubcribing
notifier=org.drools.io.impl.ResourceChangeNotifierImpl@1b994de to resource=[UrlResource
path='http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defaultPackage/LATEST']
[2011:04:92 09:04:127:debug] ResourceChangeScanner resource=[UrlResource
path='http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/defaultPackage/LATEST']
now has no subscribers
[2011:04:92 09:04:127:info] KnowledgeAgent has stopped listening for ChangeSet
notifications
jbpm.console.directory property not found
Loading process from file system: Evaluation.bpmn
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
log4j:WARN No appenders could be found for logger
(org.jnp.interfaces.TimedSocketFactory).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" java.lang.RuntimeException: Could not initialize
stateful knowledge session: [PersistenceUnit: org.drools.persistence.jpa] Unable to build
EntityManagerFactory
at
org.jbpm.integration.console.CommandDelegate.newStatefulKnowledgeSession(CommandDelegate.java:179)
at org.jbpm.integration.console.CommandDelegate.getSession(CommandDelegate.java:187)
at org.jbpm.integration.console.CommandDelegate.<init>(CommandDelegate.java:70)
at org.jbpm.integration.console.CommandDelegate.main(CommandDelegate.java:293)
Caused by: javax.persistence.PersistenceException: [PersistenceUnit:
org.drools.persistence.jpa] Unable to build EntityManagerFactory
at
org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:677)
at
org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:126)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:52)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:34)
at
org.jbpm.integration.console.CommandDelegate.newStatefulKnowledgeSession(CommandDelegate.java:125)
... 3 more
Caused by: org.hibernate.HibernateException: Could not locate TransactionManager
at
org.hibernate.transaction.JNDITransactionManagerLookup.getTransactionManager(JNDITransactionManagerLookup.java:60)
at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:357)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1327)
at
org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:867)
at
org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:669)
... 7 more
Caused by: javax.naming.NameNotFoundException: TransactionManager not bound
at org.jnp.server.NamingServer.getBinding(NamingServer.java:771)
at org.jnp.server.NamingServer.getBinding(NamingServer.java:779)
at org.jnp.server.NamingServer.getObject(NamingServer.java:785)
at org.jnp.server.NamingServer.lookup(NamingServer.java:443)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:322)
at sun.rmi.transport.Transport$1.run(Transport.java:177)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:173)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:553)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:808)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:667)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:636)
at
sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:273)
at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:251)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:160)
at org.jnp.server.NamingServer_Stub.lookup(Unknown Source)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:726)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:686)
at javax.naming.InitialContext.lookup(InitialContext.java:409)
at
org.hibernate.transaction.JNDITransactionManagerLookup.getTransactionManager(JNDITransactionManagerLookup.java:57)
... 11 more
do I need to configure a transactionManager somehow?
--------------------------------------------------------------
Reply to this message by going to Community
[http://community.jboss.org/message/597370#597370]
Start a new discussion in jBPM at Community
[http://community.jboss.org/choose-container!input.jspa?contentType=1&...]
2:53 p.m.
npereira [http://community.jboss.org/people/npereira] created the discussion
"Re: jbpm, process definitions, jboss - looking for knowledge"
To view the discussion, visit: http://community.jboss.org/message/597563#597563
--------------------------------------------------------------
Hi,
I'm having the same issue. I'm using mysql, but the same error that you are
describing is happening to me to.
Regards
--------------------------------------------------------------
Reply to this message by going to Community
[http://community.jboss.org/message/597563#597563]
Start a new discussion in jBPM at Community
[http://community.jboss.org/choose-container!input.jspa?contentType=1&...]
7:50 p.m.
Piotr Tempes [http://community.jboss.org/people/carek] created the discussion
"Re: jbpm, process definitions, jboss - looking for knowledge"
To view the discussion, visit: http://community.jboss.org/message/597640#597640
--------------------------------------------------------------
well I found out that transaction managers/datasources aren't remotely accesible...
You need register your jndi as global jndi and acces it by http or jnp:
http://www.engfers.com/2008/08/07/exposing_accessing-jboss-jndi-objects_d...
http://www.engfers.com/2008/08/07/exposing_accessing-jboss-jndi-objects_d...
and if it comes to transaction managers, I am not sure if it is possible at all:
"While it does support propagating transaction contexts with
remote calls, it does not support propagating transaction contexts
to other virtual machines, so all transactional work must be done
in the same virtual machine as the JBoss server."
from:
http://docs.jboss.org/jbossas/jboss4guide/r1/html/ch4.chapt.html
http://docs.jboss.org/jbossas/jboss4guide/r1/html/ch4.chapt.html
after all I gave up... I am now writing web application which I am going to deploy on
jboss and try to connect to it via rmi or something like that.
Good luck to you
btw. if you manage to do that after all please let me know how ;)
--------------------------------------------------------------
Reply to this message by going to Community
[http://community.jboss.org/message/597640#597640]
Start a new discussion in jBPM at Community
[http://community.jboss.org/choose-container!input.jspa?contentType=1&...]
5022
days inactive
5026
days old
6 comments
3 participants
participants (3)
-
Matus Majchrak -
npereira
-
Piotr Tempes