Package org.drools.compiler.lang.descr

Examples of org.drools.compiler.lang.descr.RuleDescr

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    }

    private RuleModel getRuleModel( final ExpandedDRLInfo expandedDRLInfo,
                                    final PackageDataModelOracle dmo ) {
        //De-serialize model
        RuleDescr ruleDescr = parseDrl( expandedDRLInfo );
        RuleModel model = new RuleModel();
        model.name = ruleDescr.getName();
        model.parentName = ruleDescr.getParentName();

        Map<String, AnnotationDescr> annotations = ruleDescr.getAnnotations();
        if ( annotations != null ) {
            for ( AnnotationDescr annotation : annotations.values() ) {
                model.addMetadata( new RuleMetadata( annotation.getName(),
                                                     annotation.getValuesAsString() ) );
            }
        }

        //De-serialize Package name
        final String packageName = PackageNameParser.parsePackageName( expandedDRLInfo.plainDrl );
        model.setPackageName( packageName );

        //De-serialize imports
        final Imports imports = ImportsParser.parseImports( expandedDRLInfo.plainDrl );
        for ( Import item : imports.getImports() ) {
            model.getImports().addImport( item );
        }

        boolean isJavaDialect = parseAttributes( model,
                                                 ruleDescr.getAttributes() );
        Map<String, String> boundParams = parseLhs( model,
                                                    ruleDescr.getLhs(),
                                                    isJavaDialect,
                                                    expandedDRLInfo,
                                                    dmo );
        parseRhs( model,
                  expandedDRLInfo.consequence != null ? expandedDRLInfo.consequence : (String) ruleDescr.getConsequence(),
                  isJavaDialect,
                  boundParams,
                  expandedDRLInfo,
                  dmo );
        return model;
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    @Test
    public void testSoundsLike() throws Exception {
        final PackageDescr pkg = (PackageDescr) parseResource( "compilationUnit",
                                                               "soundslike_operator.drl" );

        RuleDescr rule = (RuleDescr) pkg.getRules().get( 0 );
        PatternDescr pat = (PatternDescr) rule.getLhs().getDescrs().get( 0 );

        pat.getConstraint();
    }
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                      pkg.getRules().size() );

        assertEquals( 2,
                      pkg.getImports().size() );

        RuleDescr rule = (RuleDescr) pkg.getRules().get( 0 );
        assertEquals( "bar",
                      rule.getName() );
        at = (AttributeDescr) rule.getAttributes().get( "agenda-group" );
        assertEquals( "agenda-group",
                      at.getName() );
        assertEquals( "x",
                      at.getValue() );
        at = (AttributeDescr) rule.getAttributes().get( "dialect" );
        assertEquals( "dialect",
                      at.getName() );
        assertEquals( "java",
                      at.getValue() );

        rule = (RuleDescr) pkg.getRules().get( 1 );
        assertEquals( "baz",
                      rule.getName() );
        at = (AttributeDescr) rule.getAttributes().get( "dialect" );
        assertEquals( "dialect",
                      at.getName() );
        assertEquals( "mvel",
                      at.getValue() );
        at = (AttributeDescr) rule.getAttributes().get( "agenda-group" );
        assertEquals( "agenda-group",
                      at.getName() );
        assertEquals( "x",
                      at.getValue() );
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    @Test
    public void testEndPosition() throws Exception {
        final PackageDescr pkg = (PackageDescr) parseResource( "compilationUnit",
                                                               "test_EndPosition.drl" );
        final RuleDescr rule = (RuleDescr) pkg.getRules().get( 0 );
        final PatternDescr col = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        assertEquals( 6,
                      col.getLine() );
        assertEquals( 8,
                      col.getEndLine() );
    }
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    @Test
    public void testQualifiedClassname() throws Exception {
        final PackageDescr pkg = (PackageDescr) parseResource( "compilationUnit",
                                                               "qualified_classname.drl" );

        final RuleDescr rule = (RuleDescr) pkg.getRules().get( 0 );

        final PatternDescr p = (PatternDescr) rule.getLhs().getDescrs().get( 0 );

        assertEquals( "com.cheeseco.Cheese",
                      p.getObjectType() );
    }
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        final PackageDescr pkg = (PackageDescr) parseResource( "compilationUnit",
                                                               "accumulate.drl" );

        assertEquals( 1,
                      pkg.getRules().size() );
        final RuleDescr rule = (RuleDescr) pkg.getRules().get( 0 );
        assertEquals( 1,
                      rule.getLhs().getDescrs().size() );

        final PatternDescr outPattern = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        final AccumulateDescr accum = (AccumulateDescr) outPattern.getSource();
        assertEqualsIgnoreWhitespace( "int x = 0 ;",
                                      accum.getInitCode() );
        assertEqualsIgnoreWhitespace( "x++;",
                                      accum.getActionCode() );
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        final PackageDescr pkg = (PackageDescr) parseResource( "compilationUnit",
                                                               "accumulate_with_bindings.drl" );

        assertEquals( 1,
                      pkg.getRules().size() );
        final RuleDescr rule = (RuleDescr) pkg.getRules().get( 0 );
        assertEquals( 1,
                      rule.getLhs().getDescrs().size() );

        final PatternDescr outPattern = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        final AccumulateDescr accum = (AccumulateDescr) outPattern.getSource();
        assertEqualsIgnoreWhitespace( "$counter",
                                      outPattern.getIdentifier() );
        assertEqualsIgnoreWhitespace( "int x = 0 ;",
                                      accum.getInitCode() );
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        final PackageDescr pkg = (PackageDescr) parseResource( "compilationUnit",
                                                               "collect.drl" );

        assertEquals( 1,
                      pkg.getRules().size() );
        final RuleDescr rule = (RuleDescr) pkg.getRules().get( 0 );
        assertEquals( 1,
                      rule.getLhs().getDescrs().size() );

        final PatternDescr outPattern = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        final CollectDescr collect = (CollectDescr) outPattern.getSource();

        final PatternDescr pattern = (PatternDescr) collect.getInputPattern();
        assertEquals( "Person",
                      pattern.getObjectType() );
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    }

    @Test
    public void testPredicate2() throws Exception {
        // predicates are also prefixed by the eval keyword
        final RuleDescr rule = (RuleDescr) parse( "rule",
                                                  "rule X when Foo(eval( $var.equals(\"xyz\") )) then end" );

        final PatternDescr pattern = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        final List< ? > constraints = pattern.getConstraint().getDescrs();
        assertEquals( 1,
                      constraints.size() );

        final ExprConstraintDescr predicate = (ExprConstraintDescr) constraints.get( 0 );
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                        predicate.getExpression() );
    }

    @Test
    public void testEscapedStrings() throws Exception {
        final RuleDescr rule = (RuleDescr) parseResource( "rule",
                                                          "escaped-string.drl" );

        assertNotNull( rule );

        assertEquals( "test_Quotes",
                      rule.getName() );

        final String expected = "String s = \"\\\"\\n\\t\\\\\";";

        assertEqualsIgnoreWhitespace( expected,
                                      (String) rule.getConsequence() );
    }
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Related Classes of org.drools.compiler.lang.descr.RuleDescr

  • org.drools.compiler.builder.impl.KnowledgeBuilderImpl
  • org.drools.compiler.builder.impl.KnowledgeBuilderTest
  • org.drools.compiler.compiler.PackageBuilder
  • org.drools.compiler.compiler.PackageBuilderConfigurationTest
  • org.drools.compiler.compiler.PackageBuilderTest
  • org.drools.compiler.compiler.QueryBuilderTest
  • org.drools.compiler.compiler.RuleErrorTest
  • org.drools.compiler.compiler.xml.rules.AndHandler
  • org.drools.compiler.compiler.xml.rules.OrHandler
  • org.drools.compiler.compiler.xml.rules.RuleHandler
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