MinaClient: can't get tasks of user unless specifying taskId
by dgimenes
I'm using WSHTHandler (Mina Server) as WorkItemHandler on my app.
And now I'm trying to make a simple client. The problem is I can't get the
tasks from the server when passing the userId and language on the
getTasksAssignedAs* methods from MinaTaskClient class.
When I use getTask(1, getTaskHandler) passing the test Task Id (1), it
works, and
getTaskHandler.getTask().getPeopleAssignments().getPotentialOwners() returns
that user '1' is assigned to the task, but if I call
client.getTasksAssignedAsPotentialOwner("1", "en-UK", responseHandler), it
returns nothing.
I think it's something related to the language (en-UK) or setting the userId
to the task. How do I set a user to a task? I'm doing it on a xml, available
here: http://pastebin.com/u46nb0NE
Thanks.
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16 years, 1 month
Export workflow diagram.
by Swindells, Thomas
Hi everyone,
Is there any easy way to convert a workflow into an image file.
The only way I've found of doing it so far is to take a screenshot of it opened in eclipse but I was wondering if anyone had any better ways of doing it?
Thanks
Thomas
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16 years, 1 month
Detecting two instances of the same event with Fusion Rules
by Georg Maier
Hi,
I'm new to Drools and currently trying to implement some examples using CEP /
Fusion. I got stuck on a problem to which I can't find any solution in the
online documentation, so I'm hoping for your help.
I'm trying to write a rule, which is activated whenever a certain event
occurs and no event of the same type occurred in the e.g. last 5 minutes (or
just at the same time). I know how to do it if these are events of different
types, but I can't find any way for events of the same type. What I tried is
something like that:
$error : RouterErrorEvent ( $name : routerName ) from entry-point "abc"
not ($otherError : RouterErrorEvent ( (this coincides $error) && (routerName
== $name) ) from entry-point "abc")
First of all there's the problem, that $error and $otherError will be the
same instance if a "RouterEventError" has been inserted from the "abc" entry
point. Adding a (this != $error) to the second, ($otherError) obviously is no
solution to that as well.
If it were two different events something like in example 2.19 would work:
$error1 : ErrorOneEvent( $id : id )
not ($error2 : ErrorTwoEvent( id == $id, this coincides $error1 ))
I'm kinda sure I'm missing something pretty "easy" here... or is this
approach completely wrong?
As I'm aware of the fact that I couldn't be more of a newbie J I would
appreciate any suggestions for nice tutorials or further reading as well!
Thanks in advance!
Georg
16 years, 1 month
Help needed in configuring drools guvnor with MySql
by Dinesh kumar
Hi,
I am trying to configure Drools Guvnor with MySql. I am using JBoss 4.0 . I
searched the web and changed my repository.xml that was created in my
JBoss/bin . But I am getting one exception after another and finally I am
struck up in this exception. Any help on this will be of great help..
deploy, ctxPath=/drools-guvnor,
warUrl=.../tmp/deploy/tmp48046drools-guvnor-exp.war/
14:01:01,820 INFO [STDOUT] ERROR 26-05 14:01:01,820
(BundleDbPersistenceManager.java:loadBundle:1228) failed to read bundle:
cafebabe-cafe-babe-cafe-babecafebabe: java.lang.IllegalStateException:
URIIndex not valid? javax.jcr.NamespaceException: URI for index 11 not
registered.
14:01:01,930 INFO [STDOUT] ERROR 26-05 14:01:01,930
(ConnectionRecoveryManager.java:logException:447) could not execute
statement, reason: The statement was aborted because it would have caused a
duplicate key value in a unique or primary key constraint or unique index
identified by 'SQL100526101110450' defined on 'DEFAULT_BUNDLE'., state/code:
23505/20000
14:01:01,930 INFO [STDOUT] ERROR 26-05 14:01:01,930
(BundleDbPersistenceManager.java:storeBundle:1270) failed to write bundle:
cafebabe-cafe-babe-cafe-babecafebabe
ERROR 23505: The statement was aborted because it would have caused a
duplicate key value in a unique or primary key constraint or unique index
identified by 'SQL100526101110450' defined on 'DEFAULT_BUNDLE'.
at org.apache.derby.iapi.error.StandardException.newException(Unknown
Source)
at
org.apache.derby.impl.sql.execute.IndexChanger.insertAndCheckDups(Unknown
Source)
at org.apache.derby.impl.sql.execute.IndexChanger.doInsert(Unknown Source)
at org.apache.derby.impl.sql.execute.IndexChanger.insert(Unknown Source)
at org.apache.derby.impl.sql.execute.IndexSetChanger.insert(Unknown Source)
at org.apache.derby.impl.sql.execute.RowChangerImpl.insertRow(Unknown
Source)
at
org.apache.derby.impl.sql.execute.InsertResultSet.normalInsertCore(Unknown
Source)
at org.apache.derby.impl.sql.execute.InsertResultSet.open(Unknown Source)
at org.apache.derby.impl.sql.GenericPreparedStatement.execute(Unknown
Source)
at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unknown
Source)
at
org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeStatement(Unknown
Source)
at org.apache.derby.impl.jdbc.EmbedPreparedStatement.execute(Unknown
Source)
at
org.apache.jackrabbit.core.persistence.bundle.util.ConnectionRecoveryManager.executeStmtInternal(ConnectionRecoveryManager.java:365)
at
org.apache.jackrabbit.core.persistence.bundle.util.ConnectionRecoveryManager.executeStmtInternal(ConnectionRecoveryManager.java:292)
at
org.apache.jackrabbit.core.persistence.bundle.util.ConnectionRecoveryManager.executeStmt(ConnectionRecoveryManager.java:257)
at
org.apache.jackrabbit.core.persistence.bundle.util.ConnectionRecoveryManager.executeStmt(ConnectionRecoveryManager.java:237)
at
org.apache.jackrabbit.core.persistence.bundle.BundleDbPersistenceManager.storeBundle(BundleDbPersistenceManager.java:1267)
at
org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.putBundle(AbstractBundlePersistenceManager.java:703)
at
org.apache.jackrabbit.core.persistence.bundle.AbstractBundlePersistenceManager.store(AbstractBundlePersistenceManager.java:643)
at
org.apache.jackrabbit.core.persistence.bundle.BundleDbPersistenceManager.store(BundleDbPersistenceManager.java:526)
at
org.apache.jackrabbit.core.state.SharedItemStateManager.createRootNodeState(SharedItemStateManager.java:1084)
at
org.apache.jackrabbit.core.state.SharedItemStateManager.<init>(SharedItemStateManager.java:194)
at
org.apache.jackrabbit.core.RepositoryImpl.createItemStateManager(RepositoryImpl.java:1201)
at
org.apache.jackrabbit.core.RepositoryImpl$WorkspaceInfo.doInitialize(RepositoryImpl.java:1753)
at
org.apache.jackrabbit.core.RepositoryImpl$WorkspaceInfo.initialize(RepositoryImpl.java:1724)
at
org.apache.jackrabbit.core.RepositoryImpl.initWorkspace(RepositoryImpl.java:576)
at
org.apache.jackrabbit.core.RepositoryImpl.initStartupWorkspaces(RepositoryImpl.java:415)
at
org.apache.jackrabbit.core.RepositoryImpl.<init>(RepositoryImpl.java:305)
at
org.apache.jackrabbit.core.RepositoryImpl.create(RepositoryImpl.java:557)
at
org.apache.jackrabbit.core.TransientRepository$2.getRepository(TransientRepository.java:245)
at
org.apache.jackrabbit.core.TransientRepository.startRepository(TransientRepository.java:265)
at
org.apache.jackrabbit.core.TransientRepository.login(TransientRepository.java:333)
at
org.apache.jackrabbit.core.TransientRepository.login(TransientRepository.java:363)
at
org.drools.guvnor.server.repository.BRMSRepositoryConfiguration.newSession(BRMSRepositoryConfiguration.java:112)
at
org.drools.guvnor.server.repository.BRMSRepositoryConfiguration.create(BRMSRepositoryConfiguration.java:56)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.jboss.seam.util.Reflections.invoke(Reflections.java:22)
at
org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)
at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
at
org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:28)
at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
at
org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44)
at
org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
at
org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107)
at
org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:166)
at
org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:102)
at
org.drools.guvnor.server.repository.BRMSRepositoryConfiguration_$$_javassist_1.create(BRMSRepositoryConfiguration_$$_javassist_1.java)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.jboss.seam.util.Reflections.invoke(Reflections.java:22)
at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:138)
at org.jboss.seam.Component.callComponentMethod(Component.java:2171)
at org.jboss.seam.Component.callCreateMethod(Component.java:2094)
at org.jboss.seam.Component.newInstance(Component.java:2054)
at org.jboss.seam.contexts.Contexts.startup(Contexts.java:304)
at org.jboss.seam.contexts.Contexts.startup(Contexts.java:278)
at
org.jboss.seam.contexts.ServletLifecycle.endInitialization(ServletLifecycle.java:112)
at org.jboss.seam.init.Initialization.init(Initialization.java:727)
at
org.jboss.seam.servlet.SeamListener.contextInitialized(SeamListener.java:34)
at
org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3763)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4211)
at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:759)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at
org.apache.commons.modeler.BaseModelMBean.invoke(BaseModelMBean.java:503)
at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:164)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.apache.catalina.core.StandardContext.init(StandardContext.java:5052)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at
org.apache.commons.modeler.BaseModelMBean.invoke(BaseModelMBean.java:503)
at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:164)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at
org.jboss.web.tomcat.tc5.TomcatDeployer.performDeployInternal(TomcatDeployer.java:297)
at
org.jboss.web.tomcat.tc5.TomcatDeployer.performDeploy(TomcatDeployer.java:103)
at org.jboss.web.AbstractWebDeployer.start(AbstractWebDeployer.java:371)
at org.jboss.web.WebModule.startModule(WebModule.java:83)
at org.jboss.web.WebModule.startService(WebModule.java:61)
at
org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
at
org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unkn
14:01:01,945 INFO [STDOUT] own Source)
at java.lang.reflect.Method.invoke(Unknown Source)
My repository.xml file:
<?xml version="1.0"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<!DOCTYPE Repository PUBLIC "-//The Apache Software Foundation//DTD
Jackrabbit 1.4//EN"
"http://jackrabbit.apache.org/dtd/repository-1.4.dtd">
<!-- Example Repository Configuration File -->
<Repository>
<!--
virtual file system where the repository stores global state
(e.g. registered namespaces, custom node types, etc.)
-->
<FileSystem class="org.apache.jackrabbit.core.fs.db.DbFileSystem">
</FileSystem>
<!--
security configuration
-->
<Security appName="Jackrabbit">
<!--
access manager:
class: FQN of class implementing the AccessManager interface
-->
<AccessManager
class="org.apache.jackrabbit.core.security.SimpleAccessManager">
<!-- -->
</AccessManager>
<LoginModule
class="org.apache.jackrabbit.core.security.SimpleLoginModule">
<!-- anonymous user name ('anonymous' is the default value) -->
<!-- -->
<!--
default user name to be used instead of the anonymous user
when no login credentials are provided (unset by default)
-->
<!-- -->
</LoginModule>
</Security>
<!--
location of workspaces root directory and name of default workspace
-->
<Workspaces rootPath="${rep.home}/workspaces"
defaultWorkspace="default"/>
<!--
workspace configuration template:
used to create the initial workspace if there's no workspace yet
-->
<Workspace name="${wsp.name}">
<!--
virtual file system of the workspace:
class: FQN of class implementing the FileSystem interface
-->
<FileSystem class="org.apache.jackrabbit.core.fs.db.DbFileSystem">
</FileSystem>
<!--
persistence manager of the workspace:
class: FQN of class implementing the PersistenceManager
interface
-->
<PersistenceManager
class="org.apache.jackrabbit.core.state.db.SimpleDbPersistenceManager">
<!-- param name="externalBLOBs" value="false" /-->
</PersistenceManager>
<!--
Search index and the file system it uses.
class: FQN of class implementing the QueryHandler interface
-->
<SearchIndex
class="org.apache.jackrabbit.core.query.lucene.SearchIndex">
</SearchIndex>
</Workspace>
<!--
Configures the versioning
-->
<Versioning rootPath="${rep.home}/version">
<!--
Configures the filesystem to use for versioning for the
respective
persistence manager
-->
<FileSystem class="org.apache.jackrabbit.core.fs.db.DbFileSystem">
</FileSystem>
<!--
Configures the persistence manager to be used for persisting
version state.
Please note that the current versioning implementation is based
on
a 'normal' persistence manager, but this could change in future
implementations.
-->
<PersistenceManager
class="org.apache.jackrabbit.core.state.db.SimpleDbPersistenceManager">
</PersistenceManager>
</Versioning>
<!--
Search index for content that is shared repository wide
(/jcr:system tree, contains mainly versions)
-->
<SearchIndex
class="org.apache.jackrabbit.core.query.lucene.SearchIndex">
</SearchIndex>
</Repository>
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16 years, 1 month
skip workflow's task from NodeInstance
by dgimenes
I'm trying to do a web page that lists the active workflows
(processInstances) and it's respective tasks that are waiting to be
processed to continue the flow. Also, I'd like to create a button to those
tasks to skip them, and go to the next task.
The first part I've already done with
((RuleFlowProcessInstance)ProcessInstance).getNodeInstances() (and so on),
but now I want to know if it's possible to skip the node with just a
NodeInstance objetct. Can you help me?
thx.
just in case, I'm using the words "node", "activity" and "task" to represent
the same thing.
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16 years, 1 month
Drools Rule Engine
by ramram
Hi All,
I am evaluating the rule engine of Drools and I have some questions:
1- Is there a way to make the rule dynamic and by that i mean that the
parameter it takes can vary between 1 instance and another?
2- is there a way to set the parameter in java and pass the parameter set
to the drl file so that it can be evaluated against?
3- concerning the number of users and optimization? is there any benchmark
made and a comparison of how many users and rules the engine can handle?
Regards,
Ram
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16 years, 1 month
ClassCastException during inserting knowledge package
by Piotr Jedrychowski
Hello.
I have a problem with such scenario:
1) add one knowledge package (sensor200) with two rules:
package sensor200
rule "Sensor-200-ON"
when
(and f0: FMSensorFact(id==201) f1: FMSensorFact(id==202) )
(not FMFact(id==200))
then
FMFact factToInsert = new FMFact(200);
insert(factToInsert);
end
package sensor200
rule "Sensor-200-OFF"
when
not (and FMSensorFact(id==201) FMSensorFact(id==202) )
(factToRetract : FMFact(id==200))
then
retract(factToRetract);
end
2) remove knowledge package (sensor200)
3) add knowledge package with the same name as in point 1, but with
other rule:
package sensor200
rule "Sensor-200-OR-201-ON"
when
fact: FMSensorFact(id==201)
(not FMFact(id==200))
then
FMFact factToInsert = new FMFact(200);
insert(factToInsert);
end
During adding knowledge package in point 3, I'm getting
ClassCastException with this Stacktarce:
java.lang.ClassCastException: org.drools.util.ObjectHashMap
at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:142)
at org.drools.reteoo.ObjectTypeNode.updateSink(ObjectTypeNode.java:252)
at org.drools.reteoo.AlphaNode.attach(AlphaNode.java:133)
at org.drools.reteoo.builder.BuildUtils.attachNode(BuildUtils.java:160)
at
org.drools.reteoo.builder.PatternBuilder.attachAlphaNodes(PatternBuilder.java:295)
at
org.drools.reteoo.builder.PatternBuilder.attachPattern(PatternBuilder.java:117)
at org.drools.reteoo.builder.PatternBuilder.build(PatternBuilder.java:70)
at
org.drools.reteoo.builder.GroupElementBuilder$NotBuilder.build(GroupElementBuilder.java:228)
at
org.drools.reteoo.builder.GroupElementBuilder.build(GroupElementBuilder.java:73)
at
org.drools.reteoo.builder.GroupElementBuilder$AndBuilder.build(GroupElementBuilder.java:126)
at
org.drools.reteoo.builder.GroupElementBuilder.build(GroupElementBuilder.java:73)
at
org.drools.reteoo.builder.ReteooRuleBuilder.addSubRule(ReteooRuleBuilder.java:153)
at
org.drools.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.java:126)
at org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:117)
at org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:362)
at org.drools.common.AbstractRuleBase.addRule(AbstractRuleBase.java:618)
at
org.drools.common.AbstractRuleBase.addPackages(AbstractRuleBase.java:500)
at org.drools.reteoo.ReteooRuleBase.addPackages(ReteooRuleBase.java:379)
at
org.drools.impl.KnowledgeBaseImpl.addKnowledgePackages(KnowledgeBaseImpl.java:121)
Maybe someone had similar problem and could help me?
I'm using:
* JBoss 4.2.3.GA
* Drools 5.0
Regards,
Piotr
16 years, 1 month
Error in OR rule
by Piotr Jedrychowski
Hello.
I have a problem with such a condition after 'when':
(or (and MyFact(id==1) MyFact(id==2)) (or MyFact(id==3) MyFact(id==4)))
For this condition I got this error:
errors; [7,41]: [ERR 101] Line 7:41 no viable alternative at input 'or'
in rule "Sensor-1-ON"[7,64]: [ERR 102] Line 7:64 mismatched input
'MyFact' expecting ')' in rule "Sensor-1-ON"[7,84]: [ERR 102] Line 7:84
mismatched input ')' expecting 'then' in rule "Sensor-1-ON"
When I changed my condition to this:
(or (and MyFact(id==1) MyFact(id==2)) MyFact(id==3) MyFact(id==4))
everything is correct. Both conditions from logic point of view, are the
same, but the first one can't be compiled. Why?
Maybe someone had similar problem and could help me?
I'm using:
* JBoss 4.2.3.GA
* Drools 5.0
Regards,
Piotr
16 years, 1 month
