[rules-users] Mixing dsl language and regular rule syntax in a rule file
David Sinclair
dsinclair at chariotsolutions.com
Fri Mar 20 13:12:15 EDT 2009
Here is the link to the docs
http://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/trunk/target/docs/drools-expert/html_single/index.html#d0e4780
2009/3/20 Quinn, Dan <dequinn at fedex.com>
> Hi,
>
> Is it possible to mix dsl language and regular rule syntax in a rule
> file? I am trying to do this, but my rules won't compile. The "unable to
> expand" error is returned during compilation. I tried adding [*][]"{anything}"
> = "{anything}" to the dsl file to fix this, but that didnt work. I used this
> strategy in Drools 4.0.7, but it doesn't seem to work in Drools 5.0.0 M5.
> Below I provided a simple example of what I would like to do.
>
> Thanks,
> Dan
>
> animal.dslr file
>
> #created on: Mar 12, 2009
> *package* com.fedex.cc.expertsystem.test
> *import* com.fedex.cc.expertsystem.fact.*
>
> *
>
> expander
> * animal.dsl
>
> *
>
> rule
> * "Set dog's ownership"
> *no-loop
> ** when
> *There *is* an animal lover *and* dog *in* the system
> *then*
> * *The person owns the dog
> *end*
>
> *
>
> rule
> * "Tell us person doesnt like dogs"
> *when*
> * *person : Person(animalLover == *false*)
> *then
> *System.out.println("Person does not like dog");
> *end*
>
> ***animal.dsl file
> **
> [condition][]There is an animal lover and dog in the system=person :
> Person(animalLover == true) dog : Dog()
> [consequence][]The person owns the
> dog=dog.setOwnerLastName(person.getLastName()); update(dog);*
>
> Daniel Quinn
> Fedex - Custom Critical
> Software Specialist I
> 234.310.4090(x2586)
>
>
> ------------------------------
> *From:* rules-users-bounces at lists.jboss.org [mailto:
> rules-users-bounces at lists.jboss.org] *On Behalf Of *Jeff Davis
> *Sent:* Friday, March 20, 2009 10:29 AM
> *To:* rules-users at lists.jboss.org
> *Subject:* [rules-users] Error running DroolsCompilerAntTask in CR1
>
> Hi,
> I upgraded everything from M5 to CR1 last night, but noticed that my ant
> task no longer worked and was returning an error (it had worked previously
> under M5, and I confirmed by switching everything back to test). The error I
> now receive is:
>
> [compiler] java.util.zip.ZipException: error in opening zip file
> [compiler] at java.util.zip.ZipFile.open(Native Method)
> [compiler] at java.util.zip.ZipFile.<init>(ZipFile.java:203)
> [compiler] at java.util.zip.ZipFile.<init>(ZipFile.java:234)
> [compiler] at
> org.apache.tools.ant.AntClassLoader.getResourceURL(AntClassLoader.java:1028)
> [compiler] at
> org.apache.tools.ant.AntClassLoader$ResourceEnumeration.findNextResource(AntClassLoader.java:147)
> [compiler] at
> org.apache.tools.ant.AntClassLoader$ResourceEnumeration.nextElement(AntClassLoader.java:130)
> [compiler] at
> org.apache.tools.ant.util.CollectionUtils$CompoundEnumeration.nextElement(CollectionUtils.java:198)
> [compiler] at
> sun.misc.CompoundEnumeration.nextElement(CompoundEnumeration.java:43)
> [compiler] at
> org.drools.util.ChainedProperties.loadProperties(ChainedProperties.java:233)
> [compiler] at
> org.drools.util.ChainedProperties.<init>(ChainedProperties.java:119)
> [compiler] at
> org.drools.util.ChainedProperties.<init>(ChainedProperties.java:41)
> [compiler] at
> org.drools.util.ChainedProperties.<init>(ChainedProperties.java:35)
> [compiler] at
> org.drools.RuleBaseConfiguration.init(RuleBaseConfiguration.java:376)
> [compiler] at
> org.drools.RuleBaseConfiguration.<init>(RuleBaseConfiguration.java:234)
> [compiler] at
> org.drools.common.AbstractRuleBase.<init>(AbstractRuleBase.java:149)
> [compiler] at
> org.drools.reteoo.ReteooRuleBase.<init>(ReteooRuleBase.java:144)
> [compiler] at
> org.drools.reteoo.ReteooRuleBase.<init>(ReteooRuleBase.java:121)
> [compiler] at
> org.drools.RuleBaseFactory.newRuleBase(RuleBaseFactory.java:58)
> [compiler] at
> org.drools.RuleBaseFactory.newRuleBase(RuleBaseFactory.java:38)
> [compiler] at
> org.drools.contrib.DroolsCompilerAntTask.createWithPackageBuilder(DroolsCompilerAntTask.java:241)
> [compiler] at
> org.drools.contrib.DroolsCompilerAntTask.execute(DroolsCompilerAntTask.java:170)
> [compiler] at
> org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
> [compiler] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
> Method)
> [compiler] at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> [compiler] at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> [compiler] at java.lang.reflect.Method.invoke(Method.java:585)
> [compiler] at
> org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
> [compiler] at org.apache.tools.ant.Task.perform(Task.java:348)
> [compiler] at org.apache.tools.ant.Target.execute(Target.java:357)
> [compiler] at org.apache.tools.ant.Target.performTasks(Target.java:385)
> [compiler] at
> org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
> [compiler] at
> org.apache.tools.ant.Project.executeTarget(Project.java:1306)
> [compiler] at
> org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
> [compiler] at
> org.apache.tools.ant.Project.executeTargets(Project.java:1189)
> [compiler] at org.apache.tools.ant.Main.runBuild(Main.java:758)
> [compiler] at org.apache.tools.ant.Main.startAnt(Main.java:217)
> [compiler] at
> org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
> [compiler] at
> org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
>
> My build.xml is:
>
> <project name="test" default="compile">
>
> <path id="drools.path.task">
> <fileset dir="C:\Apps\drools-5.0.0.CR1-bin">
> <include name="drools-compiler-5.0.0.CR1.jar"/>
> <include name="drools-ant-5.0.0.CR1.jar"/>
> <include name="drools-core-5.0.0.CR1.jar"/>
> <include name="drools-decisiontables-5.0.0.CR1.jar"/>
> <include name="drools-api-5.0.0.CR1.jar"/>
> </fileset>
> <fileset dir="C:\Apps\drools-5.0.0.CR1-bin\lib">
> <include name="*.jar"/>
> </fileset>
> </path>
> <path id="drools.path">
> <pathelement path="target\classes"/>
> <fileset dir="C:\Apps\drools-5.0.0.CR1-bin">
> <include name="drools-ant-5.0.0.CR1.jar"/>
> <include name="drools-decisiontables-5.0.0.CR1.jar"/>
> <include name="drools-api-5.0.0.CR1.jar"/>
> </fileset>
> </path>
>
> <taskdef name="compiler"
> classname="org.drools.contrib.DroolsCompilerAntTask"
> classpathref="drools.path.task" />
>
> <target name="create.rules.package" >
> <compiler
> srcdir="src\main\rules"
> tofile="target\package\packge.pkg"
> classpathref="drools.path">
> <include name="Sample.drl" />
> </compiler>
> </target>
>
> <target name="clean">
> <delete includeemptydirs="true">
> <fileset dir="target"/>
> </delete>
> </target>
> <target name="compile" depends="clean">
> <mkdir dir="target/classes"/>
> <mkdir dir="logs"/>
> <javac destdir="target/classes" debug="on" source="1.5" target="1.5">
> <src path="src\main\java"/>
> <classpath refid="drools.path.task"/>
> </javac>
> </target>
>
> <target name="init">
> <mkdir dir="target/classes"/>
> <mkdir dir="target"/>
> <mkdir dir="target/wsdl2javasource"/>
> </target>
> </project>
>
> If anyone has any ideas, they would be much appreciated!
>
> Thanks!
>
> jeff
>
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> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
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