July 2009 - jboss-jira - Jboss List Archives

[JBoss JIRA] Created: (JBRULES-2197) CLONE -Example source.

by Neil Wallace (JIRA)

CLONE -Example source. ---------------------- Key: JBRULES-2197 URL: https://jira.jboss.org/jira/browse/JBRULES-2197 Project: JBoss Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-compiler Affects Versions: 5.0.1.FINAL Environment: Windows XP,eclipse Reporter: Neil Wallace Assignee: Mark Proctor Fix For: 5.0.1.FINAL Hi! We are studying Drools 5.0 in order to use.. But a curious problem has happened, while executeing an example in documentation. It is 3.1.3. Defining Processes Using the Process API in drools-5.0-docs\drools-flow\html_single\index.html. Actually, 3.1.3.1. Example 1 is working normally, but 3.1.3.2. Example 2 and 3.1.3.3. Example 3 occur error. I 'll tell you what we grasp the reason for error, so far. When it's working normal, <ActionNode> exists. The other way, when it is not working normal, <ActionNode> doesn't exist. For example, in case of 3.1.3.2. Example 2 RuleFlowProcessFactory factory = RuleFlowProcessFactory.createProcess("org.drools.HelloWorldJoinSplit"); factory // Header .name("HelloWorldJoinSplit") .version("1.0") .packageName("org.drools") // Nodes .startNode(1).name("Start").done() .splitNode(2).name("Split").type(Split.TYPE_AND).done() .actionNode(3).name("Action 1") .action("mvel", "System.out.println(\"Inside Action 1\")").done() < -here, NullPointerException occurs. .actionNode(4).name("Action 2") .action("mvel", "System.out.println(\"Inside Action 2\")").done() .joinNode(5).type(Join.TYPE_AND).done() .endNode(6).name("End").done() // Connections .connection(1, 2) .connection(2, 3) .connection(2, 4) .connection(3, 5) .connection(4, 5) .connection(5, 6); RuleFlowProcess process = factory.validate().getProcess(); Please, let me know entire source I can execute this example well. Thank you for your consideration. I am waiting for you answer. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

14 years, 10 months

1
0
0 / 0

[JBoss JIRA] Created: (JBRULES-2196) CLONE -Improve handling of value coercion into BigDecimal and BigInteger

by Neil Wallace (JIRA)

CLONE -Improve handling of value coercion into BigDecimal and BigInteger ------------------------------------------------------------------------ Key: JBRULES-2196 URL: https://jira.jboss.org/jira/browse/JBRULES-2196 Project: JBoss Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-compiler, drools-core Affects Versions: 5.0.0.M5, 5.0.0.CR1, 5.0.0.FINAL Reporter: Neil Wallace Assignee: Edson Tirelli Fix For: 5.0.1.FINAL Handle coercion into BigDecimal and BigInteger properly. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

14 years, 10 months

1
0
0 / 0

[JBoss JIRA] Created: (JBRULES-2195) CLONE -Memory leak on queries (regression)

by Neil Wallace (JIRA)

CLONE -Memory leak on queries (regression) ------------------------------------------ Key: JBRULES-2195 URL: https://jira.jboss.org/jira/browse/JBRULES-2195 Project: JBoss Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-core Affects Versions: 5.0.0.M5, 5.0.0.CR1 Reporter: Neil Wallace Assignee: Edson Tirelli Fix For: 5.0.1.FINAL A leak was found when a rulebase contained 2 or more queries on it. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

14 years, 10 months

1
0
0 / 0

[JBoss JIRA] Created: (JBRULES-2194) CLONE -StatelessKnowledgeSessions created by KnowledgeAgent causes NullPointerException when used in a pipeline

by Neil Wallace (JIRA)

CLONE -StatelessKnowledgeSessions created by KnowledgeAgent causes NullPointerException when used in a pipeline --------------------------------------------------------------------------------------------------------------- Key: JBRULES-2194 URL: https://jira.jboss.org/jira/browse/JBRULES-2194 Project: JBoss Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-compiler Environment: 5.0.1.SNAPSHOT for May 12, 2009 Reporter: Neil Wallace Assignee: Mark Proctor Fix For: 5.0.1.FINAL This issue is related to this thread on the user-list: http://www.mail-archive.com/rules-users@lists.jboss.org/msg08770.html I'm getting a NullPointerException when I insert an object into the pipeline using 5.0.1.SNAPSHOT from May 12, 2009: java.lang.NullPointerException at org.drools.runtime.pipeline.impl.StatelessKnowledgeSessionPipelineImpl.insert(StatelessKnowledgeSessionPipelineImpl.java:24) It looks like StatelessKnowledgeSession's ruleBase is null when created by the KnowledgeAgent, which poses a problem since StatelessKnowledgeSessionPipelineImpl invokes getRootClassLoader() on the session's ruleBase. Here's what I'm doing: StatelessKnowledgeSession ksession = kagent.newStatelessKnowledgeSession(); Pipeline pipeline = PipelineFactory.newStatelessKnowledgeSessionPipeline(ksession); pipeline.setReceiver(messageTransformer); pipeline.insert(message); // NPE here I'll attach a patch to KnowledgeAgentTest containing a failing test case. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

14 years, 10 months

1
0
0 / 0

[JBoss JIRA] Created: (JBRULES-2193) CLONE -Modify raises NPE when using "from"

by Neil Wallace (JIRA)

CLONE -Modify raises NPE when using "from" ------------------------------------------ Key: JBRULES-2193 URL: https://jira.jboss.org/jira/browse/JBRULES-2193 Project: JBoss Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-core Affects Versions: 5.0.0.CR1 Reporter: Neil Wallace Assignee: Edson Tirelli Fix For: 5.0.1.FINAL The attached file should generate everyting into a subdirectory ./movie and compile and execute. You'll have to modify the classpath, though. Regards -W # Shell this file to create subdir movie with *.java, Movie.drl, database.xml # # you'll have to modify the classpath setting - see below # mkdir movie || true cat <<'TheEnd' >movie/Main.java package movie; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.InputStream; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.io.OutputStream; import java.util.Collection; import javax.xml.bind.JAXBContext; import org.drools.KnowledgeBase; import org.drools.KnowledgeBaseFactory; import org.drools.builder.KnowledgeBuilder; import org.drools.builder.KnowledgeBuilderError; import org.drools.builder.KnowledgeBuilderFactory; import org.drools.builder.ResourceType; import org.drools.definition.KnowledgePackage; import org.drools.io.ResourceFactory; import org.drools.runtime.StatefulKnowledgeSession; import javax.xml.bind.Unmarshaller; public class Main { private StatefulKnowledgeSession session; public Main(){ } public void init() throws Exception { KnowledgeBase kBase = KnowledgeBaseFactory.newKnowledgeBase(); KnowledgeBuilder kBuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(); kBuilder.add( ResourceFactory.newFileResource( "movie/Movie.drl" ), ResourceType.DRL ); if( kBuilder.hasErrors() ){ for( KnowledgeBuilderError err: kBuilder.getErrors() ){ System.out.println( err.toString() ); } throw new IllegalStateException( "DRL errors" ); } kBase.addKnowledgePackages( kBuilder.getKnowledgePackages() ); File xml = new File( "database.xml" ); JAXBContext jc = JAXBContext.newInstance( Database.class ); Unmarshaller u = jc.createUnmarshaller(); InputStream inputStream = new FileInputStream( xml ); Database db = (Database)u.unmarshal( inputStream ); inputStream.close(); session = kBase.newStatefulKnowledgeSession(); for( Movie m: db.getMovie() ){ session.insert( m ); } for( Actor a: db.getActor() ){ session.insert( a ); } for( Role r: db.getRole() ){ session.insert( r ); } session.fireAllRules(); } public static void main( String[] args ) throws Exception { Main rf = new Main(); rf.init(); } } TheEnd cat <<'TheEnd' >movie/Role.java package movie; import javax.xml.bind.annotation.XmlAttribute; public class Role implements Item { private String actor; private String movie; public Role(){ } @XmlAttribute public String getActor() { return actor; } public void setActor(String actor) { this.actor = actor; } @XmlAttribute public String getMovie() { return movie; } public void setMovie(String movie) { this.movie = movie; } @Override public String toString(){ return actor + " plays in " + movie; } } TheEnd cat <<'TheEnd' >movie/Movie.java package movie; import java.util.HashSet; import java.util.Set; import javax.xml.bind.annotation.XmlAttribute; public class Movie implements Item { private String title; private Set<Actor> cast; public Movie(){ } @XmlAttribute public String getTitle() { return title; } public void setTitle(String title) { this.title = title; } public Set<Actor> getCast(){ if( cast == null ) cast = new HashSet<Actor>(); return cast; } @Override public int hashCode(){ return title.hashCode(); } @Override public boolean equals( Object o ){ if( ! (o instanceof Movie ) ) return false; return this.title.equals( ((Movie)o).getTitle() ); } @Override public String toString(){ StringBuilder sb = new StringBuilder(); sb.append( title ).append( "\n" ); for( Actor a: getCast() ){ sb.append( " " ).append( a.getName() ).append( "\n" ); } return sb.toString(); } } TheEnd cat <<'TheEnd' >movie/Item.java package movie; /** * Marker interface for WMEs * @author Wolfgang Laun */ public interface Item { } TheEnd cat <<'TheEnd' >movie/Database.java package movie; import java.util.ArrayList; import java.util.List; import javax.xml.bind.annotation.XmlElement; import javax.xml.bind.annotation.XmlRootElement; import javax.xml.bind.annotation.XmlType; @XmlRootElement @XmlType(propOrder={"movie", "actor" , "role" }) public class Database { private List<Movie> movie; private List<Actor> actor; private List<Role> role; public Database(){ } @XmlElement public List<Movie> getMovie() { if( movie == null ) movie = new ArrayList<Movie>(); return movie; } @XmlElement public List<Actor> getActor() { if( actor == null ) actor = new ArrayList<Actor>(); return actor; } @XmlElement public List<Role> getRole() { if( role == null ) role = new ArrayList<Role>(); return role; } } TheEnd cat <<'TheEnd' >movie/Actor.java package movie; import java.util.ArrayList; import java.util.List; import javax.xml.bind.annotation.XmlAttribute; public class Actor implements Item { private String name; private List<Movie> movies; public Actor(){ } @XmlAttribute public String getName() { return name; } public void setName(String name) { this.name = name; } public List<Movie> getMovies(){ if( movies == null ) movies = new ArrayList<Movie>(); return movies; } @Override public String toString(){ StringBuilder sb = new StringBuilder(); sb.append( name ).append( "\n" ); for( Movie m: getMovies() ){ sb.append( " " ).append( m.getTitle() ).append( "\n" ); } return sb.toString(); } @Override public int hashCode(){ return name.hashCode(); } @Override public boolean equals( Object o ){ if( ! (o instanceof Actor ) ) return false; return this.name.equals( ((Actor)o).getName() ); } } TheEnd cat <<'TheEnd' >movie/Movie.drl package movie; /*** - List<?> as fact field type - Set<?> as fact field type - Match WMEs with elements from field with List<?> type: from - inline eval() for determining membership in Collection() - Write rules for a set of WME types using a "marker" interface. */ # # Fill the Movies' cast lists with data from Role. # rule fillCast salience 100 when $r : Role( $actor : actor, $movie : movie ) $a : Actor( name == $actor ) $m : Movie( title == $movie ) then modify( $m ){ getCast().add( $a ); } retract( $r ); end # # Fill the Actors' list of movies with data from a Movie's cast list # rule fillMovies salience 90 when $m : Movie( $cast : cast ) $a : Actor() from $cast then System.out.println( "movie " + $m.getTitle() + " actor " + $a.getName() ); modify( $a ){ getMovies().add( $m ); } end # # Find a movie where HB and LB are in together # rule findHBLB when $hb : Actor( name == "Humphrey Bogart" ) $lb : Actor( name == "Lauren Bacall" ) $m : Movie( $title : title, $cast : cast, eval( $cast.contains( $hb ) && $cast.contains( $lb ) ) ) then System.out.println( "HB & LB together in " + $title ); end # # Display any WME # rule showItem salience -100 when $i : Item() then System.out.println( $i.toString() ); end TheEnd cat <<'TheEnd' >database.xml <?xml version="1.0" encoding="UTF-8"?> <database> <movie title="Casablanca"/> <movie title="Key Largo"/> <movie title="To Have and Have Not"/> <movie title="The African Queen"/> <actor name="Humphrey Bogart"/> <actor name="Katherine Hepburn"/> <actor name="Ingrid Bergman"/> <actor name="Lauren Bacall"/> <role actor="Humphrey Bogart" movie="Casablanca"/> <role actor="Ingrid Bergman" movie="Casablanca"/> <role actor="Humphrey Bogart" movie="The African Queen"/> <role actor="Humphrey Bogart" movie="Key Largo"/> <role actor="Humphrey Bogart" movie="To Have and Have Not"/> <role actor="Lauren Bacall" movie="To Have and Have Not"/> <role actor="Lauren Bacall" movie="Key Largo"/> <role actor="Katherine Hepburn" movie="The African Queen"/> </database> TheEnd export CLASSPATH=.:/extra/Drools-5.0.1.SNAPSHOT/drools-core.jar:/extra/Drools-5.0.1.SNAPSHOT/drools-api.jar:/extra/Drools-5.0.1.SNAPSHOT/drools-compiler.jar:/extra/Drools-5.0.1.SNAPSHOT/drools-ant.jar:/extra/Drools-5.0.1.SNAPSHOT/antlr-runtime.jar:/usr/local/eclipse/plugins/org.eclipse.jdt.core_3.4.4.v_894_R34x.jar:/extra/Drools-5.0.0.CR1/bin/lib/mvel2-2.0.8pre1.jar javac movie/*.java java movie/Main cat <<'TheEnd' # # This is what I get: # movie Casablanca actor Ingrid Bergman Exception in thread "main" org.drools.runtime.rule.ConsequenceException: java.lang.NullPointerException at org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:23) at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:943) at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:885) at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1086) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:682) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:649) at org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:183) at movie.Main.init(Main.java:65) at movie.Main.main(Main.java:70) Caused by: java.lang.NullPointerException at org.drools.base.DefaultKnowledgeHelper.modifyRetract(DefaultKnowledgeHelper.java:190) at movie.Rule_fillMovies_0.consequence(Rule_fillMovies_0.java:8) at movie.Rule_fillMovies_0ConsequenceInvoker.evaluate(Rule_fillMovies_0ConsequenceInvoker.java:28) at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:934) ... 7 more TheEnd -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

14 years, 10 months

1
0
0 / 0

[JBoss JIRA] Created: (JBRULES-2192) CLONE -Eclipse regression for MVEL debugging

by Neil Wallace (JIRA)

CLONE -Eclipse regression for MVEL debugging -------------------------------------------- Key: JBRULES-2192 URL: https://jira.jboss.org/jira/browse/JBRULES-2192 Project: JBoss Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-eclipse (expert) Affects Versions: 5.0.0.CR1 Reporter: Neil Wallace Assignee: Mark Proctor Fix For: 5.0.1.FINAL probably relate to an MVEL change. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

14 years, 10 months

1
0
0 / 0

[JBoss JIRA] Created: (JBRULES-2191) CLONE -update(fact) doesn't work in ruleflow

by Neil Wallace (JIRA)

CLONE -update(fact) doesn't work in ruleflow -------------------------------------------- Key: JBRULES-2191 URL: https://jira.jboss.org/jira/browse/JBRULES-2191 Project: JBoss Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-core (expert), drools-core (flow) Affects Versions: 5.0.0.CR1 Reporter: Neil Wallace Assignee: Kris Verlaenen Priority: Critical Fix For: 5.0.1.FINAL Hi, org.drools.base.DefaultKnowledgeHelper uses newly added identityMap to keep track of fact handles. It looks like this identityMap is updated before a rule's consequence is called. However it is not updated before a Drools Flow on-exit action. This means that calling update(someFact) in a on-exit ruleflow action causes exception ("org.drools.FactException: Update error: handle not found for object: XXXXX. Is it in the working memory?"). this was tested on drools-core-5.0.0.20090417.044049-485.jar Thanking you in advance. Best Regards, Michal -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

14 years, 10 months

1
0
0 / 0

[JBoss JIRA] Created: (JBRULES-2190) CLONE -Decision table web editor does not remember column configuration

by Neil Wallace (JIRA)

CLONE -Decision table web editor does not remember column configuration ----------------------------------------------------------------------- Key: JBRULES-2190 URL: https://jira.jboss.org/jira/browse/JBRULES-2190 Project: JBoss Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-guvnor Affects Versions: 5.0.0.CR1 Reporter: Neil Wallace Assignee: Michael Neale Priority: Minor Fix For: 5.0.1.FINAL When reconfiguring columns (grouping, sorting, hiding of columns)in the guided/ web decision table editor, this configuration is lost if that editor is closed. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

14 years, 10 months

1
0
0 / 0

[JBoss JIRA] Created: (JBRULES-2189) CLONE -MVEL debug not working anymore

by Neil Wallace (JIRA)

CLONE -MVEL debug not working anymore ------------------------------------- Key: JBRULES-2189 URL: https://jira.jboss.org/jira/browse/JBRULES-2189 Project: JBoss Drools Issue Type: Bug Security Level: Public (Everyone can see) Components: drools-eclipse Affects Versions: 5.0.0.CR1 Reporter: Neil Wallace Assignee: Kris Verlaenen Fix For: 5.0.1.FINAL When debugging rules using the MVEL dialect, Eclipse cannot find the right MVEL source and line number to show when encountering a breakpoint in MVEL code. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

14 years, 10 months

1
0
0 / 0

[JBoss JIRA] Created: (JBRULES-2188) CLONE -MVEL consequences + modify call == NPE

by Neil Wallace (JIRA)

CLONE -MVEL consequences + modify call == NPE --------------------------------------------- Key: JBRULES-2188 URL: https://jira.jboss.org/jira/browse/JBRULES-2188 Project: JBoss Drools Issue Type: Bug Security Level: Public (Everyone can see) Affects Versions: 5.0.0.CR1 Reporter: Neil Wallace Assignee: Edson Tirelli Fix For: 5.0.1.FINAL PetStore example is raising NPE because of a rule with MVEL dialect that contains a modify() call in the consequence. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

14 years, 10 months

1
0
0 / 0

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

jboss-jira July 2009