Package org.drools.lang.descr

Examples of org.drools.lang.descr.RuleDescr

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            assertFalse( parser.getErrors().toString(),
                                parser.hasErrors() );

            final Package pkg = new Package( "org.drools" );

            final RuleDescr ruleDescr = (RuleDescr) pkgDescr.getRules().get( 0 );

            final RuleBuilder builder = new RuleBuilder();

            final PackageBuilder pkgBuilder = new PackageBuilder( pkg );
            final PackageBuilderConfiguration conf = pkgBuilder.getPackageBuilderConfiguration();
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        PackageBuilderConfiguration conf = new PackageBuilderConfiguration();
        PackageBuilder pkgBuilder = new PackageBuilder( pkg,
                                                        conf );

        ruleDescr = new RuleDescr( "test consequence builder" );
        ruleDescr.setConsequence( consequence );
        ruleDescr.addAttribute( new AttributeDescr("dialect", "mvel") );
       
        for ( Entry<String, Object> entry : namedConsequences.entrySet() ) {
            ruleDescr.getNamedConsequences().put( entry.getKey(), entry.getValue() );
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    }

    @Test
    public void testSimpleExpression() {
        final Package pkg = new Package( "pkg1" );
        final RuleDescr ruleDescr = new RuleDescr( "rule 1" );

        PackageBuilder pkgBuilder = new PackageBuilder( pkg );
        final PackageBuilderConfiguration conf = pkgBuilder.getPackageBuilderConfiguration();
        DialectCompiletimeRegistry dialectRegistry = pkgBuilder.getPackageRegistry( pkg.getName() ).getDialectCompiletimeRegistry();
        MVELDialect mvelDialect = ( MVELDialect ) dialectRegistry.getDialect( "mvel" );
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    private RuleBase                 ruleBase;

    @Before
    public void setUp() throws Exception {
        final Package pkg = new Package( "pkg1" );
        final RuleDescr ruleDescr = new RuleDescr( "rule 1" );
        ruleDescr.addAttribute( new AttributeDescr( "salience",
                                                    "(p.age + 20)/2" ) );
        ruleDescr.setConsequence( "" );

        PackageBuilder pkgBuilder = new PackageBuilder( pkg );
        DialectCompiletimeRegistry dialectRegistry = pkgBuilder.getPackageRegistry( pkg.getName() ).getDialectCompiletimeRegistry();
        MVELDialect mvelDialect = (MVELDialect) dialectRegistry.getDialect( "mvel" );
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    public void testSimpleExpression() {
        PackageBuilder pkgBuilder = new PackageBuilder();
        pkgBuilder.addPackage( new PackageDescr( "pkg1" ) );

        final Package pkg = pkgBuilder.getPackage();
        final RuleDescr ruleDescr = new RuleDescr( "rule 1" );

        final PackageBuilderConfiguration conf = pkgBuilder.getPackageBuilderConfiguration();
        DialectCompiletimeRegistry dialectRegistry = pkgBuilder.getPackageRegistry( pkg.getName() ).getDialectCompiletimeRegistry();
        MVELDialect mvelDialect = (MVELDialect) dialectRegistry.getDialect( "mvel" );
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    }

    @Test
    public void testSimpleExpression() {
        final Package pkg = new Package( "pkg1" );
        final RuleDescr ruleDescr = new RuleDescr( "rule 1" );

        PackageBuilder pkgBuilder = new PackageBuilder( pkg );
        final PackageBuilderConfiguration conf = pkgBuilder.getPackageBuilderConfiguration();
        PackageRegistry pkgRegistry = pkgBuilder.getPackageRegistry( pkg.getName() );
        MVELDialect mvelDialect = ( MVELDialect ) pkgRegistry.getDialectCompiletimeRegistry().getDialect( "mvel" );
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        lhs.addDescr( pattern );
        pattern.addBinding( new BindingDescr( "$name", "name", true ) );
        pattern.addBinding( new BindingDescr( "$age", "age", true ) );
        pattern.addBinding( new BindingDescr( "$likes", "likes", true ) );

        RuleDescr ruleDescr = new RuleDescr( "rule-1" );
        packageDescr.addRule( ruleDescr );
        lhs = new AndDescr();
        ruleDescr.setLhs( lhs );

        pattern = new PatternDescr( Cheese.class.getName() );
        lhs.addDescr( pattern );
        pattern.addBinding( new BindingDescr( "$type",
                                              "type" ) );

        pattern = new PatternDescr( "query1" );
        pattern.setQuery( true );
        lhs.addDescr( pattern );
        ExprConstraintDescr expr = new ExprConstraintDescr("'bobba'");
        expr.setPosition( 0 );
        expr.setType( Type.POSITIONAL );
        pattern.addConstraint(expr);
       
        expr = new ExprConstraintDescr("$age");
        expr.setPosition( 1 );
        expr.setType( Type.POSITIONAL );
        pattern.addConstraint( expr );
       
        expr = new ExprConstraintDescr("$type");
        expr.setPosition( 2 );
        expr.setType( Type.POSITIONAL );       
        pattern.addConstraint( expr );
        ruleDescr.setConsequence( "System.out.println(\"age: \" + $age);" );

        builder.addPackage( packageDescr );
        assertLength( 0,
                      builder.getErrors().getErrors() );
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                    mockDialect2.getPackageBuilder() );
        assertSame( pkg,
                    mockDialect2.getPkg() );
        assertNull( mockDialect2.getRuleDescr() );

        RuleDescr ruleDescr = new RuleDescr( "test rule" );
        ruleDescr.addAttribute( new AttributeDescr( "dialect",
                                                    "mock" ) );
        ruleDescr.setLhs( new AndDescr() );
        EvalDescr evalDescr = new EvalDescr();
        ruleDescr.getLhs().addDescr( evalDescr );

        PackageDescr pkgDescr = new PackageDescr( "org.pkg1" );
        pkgDescr.addImport( new ImportDescr( "java.util.HashMap" ) );
        FunctionImportDescr functionImportDescr = new FunctionImportDescr();
        functionImportDescr.setTarget( "java.lang.System.currentTimeMillis" );
        pkgDescr.addFunctionImport( functionImportDescr );

        pkgDescr.addRule( ruleDescr );

        builder.addPackage( pkgDescr );

        assertSame( ruleDescr,
                    mockDialect2.getRuleDescr() );
        assertTrue( mockDialect2.getImport().contains( "java.util.HashMap" ) );
        assertTrue( mockDialect2.getStaticImport().contains( "java.lang.System.currentTimeMillis" ) );
        assertEquals( "eval was built",
                      evalDescr.getContent() );
        assertEquals( "consequence was built",
                      ruleDescr.getConsequence() );
        assertTrue( mockDialect2.isCompileAll() );

        assertNotNull( pkg.getRule( "test rule" ) );

        // make sure there were no other general errors.
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        CompilationProblem[] probs = new CompilationProblem[3];
        probs[0] = new MockCompilationProblem();
        probs[1] = new MockCompilationProblem();
        probs[2] = new MockCompilationProblem();

        DescrBuildError err = new DescrBuildError( new RuleDescr( "ruleName" ),
                                                   new AndDescr(),
                                                   probs,
                                                   "IM IN YR EROR" );
        assertNotNull( err.toString() );
        String msg = err.getMessage();
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    @Test
    public void testReload() throws Exception {
        final PackageBuilder builder = new PackageBuilder();

        final PackageDescr packageDescr = new PackageDescr( "p1" );
        final RuleDescr ruleDescr = new RuleDescr( "rule-1" );
        packageDescr.addRule( ruleDescr );

        final AndDescr lhs = new AndDescr();
        ruleDescr.setLhs( lhs );

        packageDescr.addGlobal( new GlobalDescr( "map",
                                                 "java.util.Map" ) );

        ruleDescr.setConsequence( "map.put(\"value\", new Integer(1) );" );

        builder.addPackage( packageDescr );

        Package pkg = builder.getPackage();
        Rule rule = pkg.getRule( "rule-1" );

        assertLength( 0,
                      builder.getErrors().getErrors() );

        final ReteooRuleBase ruleBase = (ReteooRuleBase) RuleBaseFactory.newRuleBase();
        ruleBase.getGlobals().put( "map",
                                   Map.class );
        final WorkingMemory workingMemory = ruleBase.newStatefulSession();

        final HashMap map = new HashMap();
        workingMemory.setGlobal( "map",
                                 map );

        final LeftTuple tuple = new MockTuple( new HashMap() );
        tuple.setLeftTupleSink( new RuleTerminalNode(1, null, rule,rule.getLhs(), new BuildContext(ruleBase, null) )  );       
        final Activation activation = new MockActivation( rule,
                                                          0,
                                                          rule.getLhs(),
                                                          tuple );

        DefaultKnowledgeHelper knowledgeHelper = new org.drools.base.DefaultKnowledgeHelper( workingMemory );
        knowledgeHelper.setActivation( activation );

        rule.getConsequence().evaluate( knowledgeHelper,
                                        workingMemory );
        assertEquals( new Integer( 1 ),
                      map.get( "value" ) );

        ruleDescr.setConsequence( "map.put(\"value\", new Integer(2) );" );
        pkg.removeRule( rule );

        // Make sure the compiled classes are also removed
        assertEquals( 0,
                      ((JavaDialectRuntimeData) pkg.getDialectRuntimeRegistry().getDialectData( "java" )).list().length );
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Related Classes of org.drools.lang.descr.RuleDescr

  • org.drools.clips.LhsClpParserTest
  • org.drools.compiler.PackageBuilder
  • org.drools.compiler.PackageBuilderConfigurationTest
  • org.drools.compiler.PackageBuilderTest
  • org.drools.compiler.QueryBuilderTest
  • org.drools.compiler.RuleErrorTest
  • org.drools.compiler.xml.rules.AndHandler
  • org.drools.compiler.xml.rules.OrHandler
  • org.drools.compiler.xml.rules.RuleHandler
  • org.drools.compiler.xml.rules.XmlPackageReaderTest
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