[rules-users] Can SolverFactory receive the plain xml? [Planner]

[André Fróes]

I"ve seen that i can do this:

solverFactory.getSolverConfig().getScoreDirectorFactoryConfig.setRuleBase(ruleBase);

but this ruleBase still pointing a drl file, i would like to pass a String
to this rulebase, one from my database.

----------- another implementation i tried
        final Reader source = new InputStreamReader(
HelloWorldExample.class.getResourceAsStream( "HelloWorld.drl" ) );
        final PackageBuilder builder = new PackageBuilder();
        builder.addPackageFromDrl( source );

        if ( builder.hasErrors() ) {
            System.out.println( builder.getErrors().toString() );
            throw new RuntimeException( "Unable to compile
\"HelloWorld.drl\".");
        }

        final Package pkg = builder.getPackage();
        final RuleBase ruleBase = RuleBaseFactory.newRuleBase();
        ruleBase.addPackage( pkg );



2013/1/22 Geoffrey De Smet <ge0ffrey.spam at gmail.com>

>  in the manual, look for setRuleBase(), it's how you can set the DRL at
> runtime
>
> Op 22-01-13 20:17, André Fróes schreef:
>
> Can it be done for the drl file pointed at xml file? Instead of pass the
> path to drl file, the drl content?
>
>  here's what i've done to use the xml by java over the cloudcomputing
> example:
>
>  --------------------
>
>   String t = "<?xml version=\"1.0\"
> encoding=\"UTF-8\"?><solver><solutionClass>org.drools.planner.examples.cloudbalancing.domain.CloudBalance</solutionClass><planningEntityClass>org.drools.planner.examples.cloudbalancing.domain.CloudProcess</planningEntityClass><scoreDirectorFactory><scoreDefinitionType>HARD_AND_SOFT</scoreDefinitionType><scoreDrl>/org/drools/planner/examples/cloudbalancing/solver/cloudBalancingScoreRules.drl</scoreDrl></scoreDirectorFactory><termination><maximumSecondsSpend>120</maximumSecondsSpend></termination><constructionHeuristic><constructionHeuristicType>FIRST_FIT_DECREASING</constructionHeuristicType><constructionHeuristicPickEarlyType>FIRST_LAST_STEP_SCORE_EQUAL_OR_IMPROVING</constructionHeuristicPickEarlyType></constructionHeuristic><localSearch><acceptor><planningEntityTabuSize>7</planningEntityTabuSize></acceptor><forager!
> ><mi
> nimalAcceptedSelection>1000</minimalAcceptedSelection></forager></localSearch></solver>";
>
>      byte b[] = t.getBytes();
>     ByteArrayInputStream bt = new ByteArrayInputStream(b);
>          SolverFactory solverFactory = new
> XmlSolverFactory().configure(bt);
>         Solver solver = solverFactory.buildSolver();
>  ---------------------
>
>  cloudBalancingScoreRules.drl is the file I want to get from database as
> text and apply it to the xml. Is it possible to do inside this
> configuration or will I have to implement a xml file pointing it everytime?
>
>
>
>  2013/1/22 Geoffrey De Smet <ge0ffrey.spam at gmail.com>
>
>>  Use a ByteArrayInputStream based on that String
>> and give it to:
>> org.drools.planner.config.XmlSolverFactory#configure(InputStream)
>>
>> Op 22-01-13 15:51, André Fróes schreef:
>>
>> Can I provide the plain xml code to a SolverFactory?
>>
>>  SolverFactory solverFactory = new XmlSolverFactory(<<xmlHere>>);
>>
>>  I know that I can provide the path to a config file.
>>
>>
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