Package org.drools.lang.descr

Examples of org.drools.lang.descr.PackageDescr

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    /** */
    public void testBracketsPrecedence() throws Exception {
        final DRLParser parser = parseResource( "brackets_precedence.drl" );
        parser.compilation_unit();

        final PackageDescr pack = parser.getPackageDescr();
        assertEquals( 1,
                      pack.getRules().size() );
        final RuleDescr rule = (RuleDescr) pack.getRules().get( 0 );

        assertEquals( 1,
                      rule.getLhs().getDescrs().size() );

        final AndDescr rootAnd = (AndDescr) rule.getLhs().getDescrs().get( 0 );
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        parser.compilation_unit();

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

        final PackageDescr pack = parser.getPackageDescr();
        assertEquals( 1,
                      pack.getRules().size() );
        final RuleDescr rule = (RuleDescr) pack.getRules().get( 0 );
        assertEquals( 4,
                      rule.getLhs().getDescrs().size() );

        final EvalDescr eval = (EvalDescr) rule.getLhs().getDescrs().get( 0 );
        assertEqualsIgnoreWhitespace( "abc(\"foo\") + 5",
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    public void testWithEval() throws Exception {
        final DRLParser parser = parseResource( "with_eval.drl" );
        parser.compilation_unit();

        final PackageDescr pack = parser.getPackageDescr();
        assertEquals( 1,
                      pack.getRules().size() );
        final RuleDescr rule = (RuleDescr) pack.getRules().get( 0 );
        assertEquals( 3,
                      rule.getLhs().getDescrs().size() );
        PatternDescr pattern = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        assertEquals( "Foo",
                      pattern.getObjectType() );
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    public void testWithRetval() throws Exception {
        final DRLParser parser = parseResource( "with_retval.drl" );
        parser.compilation_unit();

        final PackageDescr pack = parser.getPackageDescr();
        assertEquals( 1,
                      pack.getRules().size() );

        final RuleDescr rule = (RuleDescr) pack.getRules().get( 0 );
        assertEquals( 1,
                      rule.getLhs().getDescrs().size() );
        final PatternDescr col = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        assertEquals( 1,
                      col.getConstraint().getDescrs().size() );
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    public void testWithPredicate() throws Exception {
        final DRLParser parser = parseResource( "with_predicate.drl" );
        parser.compilation_unit();

        final PackageDescr pack = parser.getPackageDescr();
        assertEquals( 1,
                      pack.getRules().size() );

        final RuleDescr rule = (RuleDescr) pack.getRules().get( 0 );
        assertEquals( 1,
                      rule.getLhs().getDescrs().size() );
        final PatternDescr col = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        AndDescr and = (AndDescr) col.getConstraint();
        assertEquals( 2,
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    public void testNotWithConstraint() throws Exception {
        final DRLParser parser = parseResource( "not_with_constraint.drl" );
        parser.compilation_unit();

        final PackageDescr pack = parser.getPackageDescr();
        assertEquals( 1,
                      pack.getRules().size() );

        final RuleDescr rule = (RuleDescr) pack.getRules().get( 0 );
        assertEquals( 2,
                      rule.getLhs().getDescrs().size() );

        PatternDescr pattern = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        final FieldBindingDescr fieldBinding = (FieldBindingDescr) pattern.getConstraint().getDescrs().get( 0 );
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    public void testGlobal() throws Exception {
        final DRLParser parser = parseResource( "globals.drl" );
        parser.compilation_unit();

        final PackageDescr pack = parser.getPackageDescr();
        assertEquals( 1,
                      pack.getRules().size() );

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

        assertEquals( 1,
                      pack.getImports().size() );
        assertEquals( 2,
                      pack.getGlobals().size() );

        final GlobalDescr foo = (GlobalDescr) pack.getGlobals().get( 0 );
        assertEquals( "java.lang.String",
                      foo.getType() );
        assertEquals( "foo",
                      foo.getIdentifier() );
        final GlobalDescr bar = (GlobalDescr) pack.getGlobals().get( 1 );
        assertEquals( "java.lang.Integer",
                      bar.getType() );
        assertEquals( "bar",
                      bar.getIdentifier() );
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    public void testFunctions() throws Exception {
        final DRLParser parser = parseResource( "functions.drl" );
        parser.compilation_unit();

        final PackageDescr pack = parser.getPackageDescr();
        assertEquals( 2,
                      pack.getRules().size() );

        final List functions = pack.getFunctions();
        assertEquals( 2,
                      functions.size() );

        FunctionDescr func = (FunctionDescr) functions.get( 0 );
        assertEquals( "functionA",
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    public void testComment() throws Exception {
        final DRLParser parser = parseResource( "comment.drl" );
        parser.compilation_unit();

        final PackageDescr pack = parser.getPackageDescr();
        assertNotNull( pack );

        assertEquals( "foo.bar",
                      pack.getName() );

        assertFalse( parser.getErrorMessages().toString(),
                     parser.hasErrors() );
    }
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    public void testPackageAttributes() throws Exception {
        parseResource( "package_attributes.drl" ).compilation_unit();
        assertFalse( this.parser.getErrorMessages().toString(),
                     this.parser.hasErrors() );

        PackageDescr pkg = this.parser.getPackageDescr();
        AttributeDescr at = (AttributeDescr) pkg.getAttributes().get( 0 );
        assertEquals( "agenda-group",
                      at.getName() );
        assertEquals( "x",
                      at.getValue() );
        at = (AttributeDescr) pkg.getAttributes().get( 1 );
        assertEquals( "dialect",
                      at.getName() );
        assertEquals( "java",
                      at.getValue() );

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

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

        RuleDescr rule = (RuleDescr) pkg.getRules().get( 0 );
        assertEquals( "bar",
                      rule.getName() );
        at = (AttributeDescr) rule.getAttributes().get( 0 );
        assertEquals( "agenda-group",
                      at.getName() );
        assertEquals( "x",
                      at.getValue() );
        at = (AttributeDescr) rule.getAttributes().get( 1 );
        assertEquals( "dialect",
                      at.getName() );
        assertEquals( "java",
                      at.getValue() );

        rule = (RuleDescr) pkg.getRules().get( 1 );
        assertEquals( "baz",
                      rule.getName() );
        at = (AttributeDescr) rule.getAttributes().get( 0 );
        assertEquals( "dialect",
                      at.getName() );
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  • org.drools.clips.ClipsShell
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  • org.drools.compiler.DrlParser
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