Re: [rules-users] Conflict Resolvers in 5.0 M5
Dan Seaver wrote: I'm in the process of upgrading drools from 4 to 5.0 M5 and ran into a problem with setting the conflict resolver priority order. It doesn't appear that KnowledgeBaseConfiguration supports the ability to use ConflictResolver or CompositeConflictResolver as the old RuleBaseConfiguration did. How are alternate agenda priorities handled in 5? heh, didn't imagine anyone was actually using a conflict resolver :) We will migrate this to drools-api, but for 5.0 we are just trying to be as conservative as possible. As long as you don't mind using some potential going to change apis you can still do this. If you look KnowledgeBaseConfiguration, for now, can be cast to ruleBaseConfiguration, so you can actually still set this, just be aware that it's been deprecated. Mark ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] How to Handle Decision Table (XSL files) in Drools version 4.0.7
Is there a better way to handle Decision Table (XSL files) with Drools
version 4.0.7?
In Drools 2.1, I can do the following;
file = new File(dir, XSL_filename);
InputStream stream = null;
RuleBase ruleBase = null;
WorkingMemory wm = null;
try {
stream = new FileInputStream(file);
} catch{...
}
try{
ruleBase = DecisionTableLoader.loadFromInputStream(stream);
WorkingMemory wm = ruleBase.newWorkingMemory();
} catch{ ...
}
In Drool 4.0.7, I tried the following
file = new File(dir, XSL_filename);
InputStream stream = null;
RuleBase ruleBase = null;
try {
stream = new FileInputStream(file);
} catch{...
}
try{
ruleBase = RuleBaseFactory.newRuleBase();
PackageBuilder builder = new PackageBuilder();
SpreadsheetCompiler sCompiler = new SpreadsheetCompiler();
String drl = sCompiler.compile(stream, InputType.XLS);
builder.addPackageFromDrl(new StringReader(drl));
ruleBase.addPackage(builder.getPackage());
WorkingMemory wm = ruleBase.newStatefulSession();
} catch{ ...
}
Thanks,
Hong
___
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Drools-solver -- solution questions
Hello, I'm starting to work with the drools-solver to help on a gaming project. Basically, we have a game that works in two modes: 1) a competitive game where humans (or agents) compete with one another on a well defined game board to achieve 24 points by using three (or four) agricultural development tokens. 2. A puzzle, where all 4 players work cooperatively to create an equitable solution, where all 4 players win with at least 24 points by means of our agricultural development tokens. I am starting to work with drools-solver to address the puzzle part of our game. Basically, we are interested in having the solver do two things for us: a) find the optimal solution for our game/puzzle, based upon our requirements [this part seems quite straightforward] and b) getting the total number of solutions that satisfy our constraints. We would like, as well, to be able to inspect these other, sub-optimal, solutions, in order to explore our game and puzzle further. From my reading of the "Solver" API , it looks like we will only be able to get the optimal solution. Does anyone have any suggestions for a workaround in this case? Or is there some functionality in the solver that I am missing? I look forward to your feedback. best wishes, Andrew - Andrew Waterman San Cristóbal de las Casas, Chiapas, Mexico ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] problem in Maven tests: class antlr CharStream not found, although it is there!
You need antlr-runtime jar in your classpath, although maven should get it as a transitive dependency. Try running: mvn help:effective-pom That will show you what maven is using as pom after resolving dependencies. If antlr-runtime jar is not there or if you have the wrong version, that would be the problem. []s Edson 2009/2/4 tim tim > hello all > > my problem is that my tests work fine in eclipse, but they > don't work in maven. > > when i execute my code via > > mvn test > > drools cant find the antl CharStream class. > > this is the error i get: > > java.lang.NoClassDefFoundError: org/antlr/runtime/CharStream >at > org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:276) >at > com.hikuku.rules.util.TestHelperRules.getPackage(TestHelperRules.java:85) >at > com.hikuku.rules.util.TestHelperRules.readRules(TestHelperRules.java:48) >at > com.hikuku.rules.util.TestHelperRules.readRules(TestHelperRules.java:67) >at > com.hikuku.rules.TestMemoryInsertRetract.insertRetract(TestMemoryInsertRetract.java:126) >at > com.hikuku.rules.TestMemoryInsertRetract.testInsertRetractAlldifferent(TestMemoryInsertRetract.java:84) > Caused by: java.lang.ClassNotFoundException: org.antlr.runtime.CharStream >at java.net.URLClassLoader$1.run(URLClassLoader.java:200) >at java.security.AccessController.doPrivileged(Native Method) >at java.net.URLClassLoader.findClass(URLClassLoader.java:188) >at java.lang.ClassLoader.loadClass(ClassLoader.java:307) >at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) >at java.lang.ClassLoader.loadClass(ClassLoader.java:252) >at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) >... 32 more > > > > i have the antlr3.jar in my dependencies via the drools-compiler pom.xml > and the class org.antlr.runtime.CharStream is definitely in the classpath. > i can use it from my own code without problems. > > but the drools package builder does not seem to find it. > > this works (even under maven): > > final int a = org.antlr.runtime.CharStream.EOF; > > but this doesn't find CharStream: > > PackageBuilder builder = new PackageBuilder(); > builder.addPackageFromDrl(r); > > > this is my dependency on drools as i have it in my pom: > > >org.eclipse.jdt >core >3.4.2.v_883_R34x > > > >janino >janino >2.5.10 > > > >org.drools >drools-core >5.0.0.SNAPSHOT > > >org.drools >drools-api >5.0.0.SNAPSHOT > > >org.drools >drools-compiler >5.0.0.SNAPSHOT > > > > the snapshot i use is the drools-5.0.0.20090203.112022-386 > > > does anyone have an idea what the problem might be? > > thanks, tim > ___ > rules-users mailing list > rules-users@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > -- Edson Tirelli JBoss Drools Core Development JBoss, a division of Red Hat @ www.jboss.com ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Conflict Resolvers in 5.0 M5
I'm in the process of upgrading drools from 4 to 5.0 M5 and ran into a problem with setting the conflict resolver priority order. It doesn't appear that KnowledgeBaseConfiguration supports the ability to use ConflictResolver or CompositeConflictResolver as the old RuleBaseConfiguration did. How are alternate agenda priorities handled in 5? -- View this message in context: http://www.nabble.com/Conflict-Resolvers-in-5.0-M5-tp21840939p21840939.html Sent from the drools - user mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] problem in Maven tests: class antlr CharStream not found, although it is there!
hello all my problem is that my tests work fine in eclipse, but they don't work in maven. when i execute my code via mvn test drools cant find the antl CharStream class. this is the error i get: java.lang.NoClassDefFoundError: org/antlr/runtime/CharStream at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:276) at com.hikuku.rules.util.TestHelperRules.getPackage(TestHelperRules.java:85) at com.hikuku.rules.util.TestHelperRules.readRules(TestHelperRules.java:48) at com.hikuku.rules.util.TestHelperRules.readRules(TestHelperRules.java:67) at com.hikuku.rules.TestMemoryInsertRetract.insertRetract(TestMemoryInsertRetract.java:126) at com.hikuku.rules.TestMemoryInsertRetract.testInsertRetractAlldifferent(TestMemoryInsertRetract.java:84) Caused by: java.lang.ClassNotFoundException: org.antlr.runtime.CharStream at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:252) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) ... 32 more i have the antlr3.jar in my dependencies via the drools-compiler pom.xml and the class org.antlr.runtime.CharStream is definitely in the classpath. i can use it from my own code without problems. but the drools package builder does not seem to find it. this works (even under maven): final int a = org.antlr.runtime.CharStream.EOF; but this doesn't find CharStream: PackageBuilder builder = new PackageBuilder(); builder.addPackageFromDrl(r); this is my dependency on drools as i have it in my pom: org.eclipse.jdt core 3.4.2.v_883_R34x janino janino 2.5.10 org.drools drools-core 5.0.0.SNAPSHOT org.drools drools-api 5.0.0.SNAPSHOT org.drools drools-compiler 5.0.0.SNAPSHOT the snapshot i use is the drools-5.0.0.20090203.112022-386 does anyone have an idea what the problem might be? thanks, tim ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
