Examples of DrlParser

org.drools.compiler.DrlParser
This is a low level parser API. This will return textual AST representations of the DRL source, including with DSL expanders if appropriate.
org.drools.compiler.compiler.DrlParser
This is a low level parser API. This will return textual AST representations of the DRL source, including with DSL expanders if appropriate.
org.drools.compiler.lang.DRLParser
org.drools.lang.DRLParser

Examples of org.drools.compiler.DrlParser

            try {
                BusinessRuleProvider provider = new BusinessRuleProviderDefaultImpl();


                Reader knowledge = provider.getKnowledgeReader( resource );


                DrlParser parser = new DrlParser();
                DefaultExpander expander = getDslExpander();


                if ( null != expander ) {
                    knowledge = new StringReader( expander.expand( knowledge ) );
                    if ( expander.hasErrors() ) {
                        getErrors().addAll( expander.getErrors() );
                    }
                }


                PackageDescr pkg = parser.parse( knowledge );
                if ( parser.hasErrors() ) {
                    getErrors().addAll( parser.getErrors() );
                } else {
                    addPackage( pkg );
                }


            } catch ( Exception e ) {

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Examples of org.drools.compiler.DrlParser

    }


    private RuleBase loadRuleBase(final Reader reader) throws IOException,
                                                      DroolsParserException,
                                                      Exception {
        final DrlParser parser = new DrlParser();
        final PackageDescr packageDescr = parser.parse( reader );
        if ( parser.hasErrors() ) {
            fail( "Error messages in parser, need to sort this our (or else collect error messages)\n" + parser.getErrors()  );
        }
        // pre build the package
        final PackageBuilder builder = new PackageBuilder();
        builder.addPackage( packageDescr );

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Examples of org.drools.compiler.DrlParser

    }


    @Test
    public void testPackage() throws Exception {
        final String source = "package foo.bar.baz";
        final DrlParser parser = new DrlParser();
        final PackageDescr pkg = parser.parse( new StringReader( source ) );
        assertFalse( parser.hasErrors() );
        assertEquals( "foo.bar.baz",
                      pkg.getName() );
    }

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Examples of org.drools.compiler.DrlParser

    }


    @Test
    public void testPackageWithError() throws Exception {
        final String source = "package 12 foo.bar.baz";
        final DrlParser parser = new DrlParser();
        final PackageDescr pkg = parser.parse( true,
                                               new StringReader( source ) );
        assertTrue( parser.hasErrors() );
        assertEquals( "foo.bar.baz",
                      pkg.getName() );
    }

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Examples of org.drools.compiler.DrlParser

    }


    @Test
    public void testPackageWithError2() throws Exception {
        final String source = "package 12 12312 231";
        final DrlParser parser = new DrlParser();
        final PackageDescr pkg = parser.parse( true,
                                               new StringReader( source ) );
        assertTrue( parser.hasErrors() );
        assertEquals( "",
                      pkg.getName() );
    }

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Examples of org.drools.compiler.DrlParser

                      first.getObjectType() );
    }


    @Test
    public void testExpanderLineSpread() throws Exception {
        final DrlParser parser = new DrlParser();
        final PackageDescr pkg = parser.parse( this.getReader( "expander_spread_lines.dslr" ),
                                               this.getReader( "complex.dsl" ) );


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


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

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Examples of org.drools.compiler.DrlParser


    }


    @Test
    public void testExpanderMultipleConstraints() throws Exception {
        final DrlParser parser = new DrlParser();
        final PackageDescr pkg = parser.parse( this.getReader( "expander_multiple_constraints.dslr" ),
                                               this.getReader( "multiple_constraints.dsl" ) );


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


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

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Examples of org.drools.compiler.DrlParser


    }


    @Test
    public void testExpanderMultipleConstraintsFlush() throws Exception {
        final DrlParser parser = new DrlParser();
        // this is similar to the other test, but it requires a flush to add the
        // constraints
        final PackageDescr pkg = parser.parse( this.getReader( "expander_multiple_constraints_flush.dslr" ),
                                               this.getReader( "multiple_constraints.dsl" ) );


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


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

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Examples of org.drools.compiler.compiler.DrlParser

                                          byte[] cb) {
        ResourceChangeSet pkgcs = new ResourceChangeSet( file, ChangeType.UPDATED );
        ResourceType type = ResourceType.determineResourceType( file );
        if( ResourceType.DRL.equals( type ) || ResourceType.GDRL.equals( type ) || ResourceType.RDRL.equals( type )) {
            try {
                PackageDescr opkg = new DrlParser().parse( new ByteArrayResource( ob ) );
                PackageDescr cpkg = new DrlParser().parse( new ByteArrayResource( cb ) );
                
                List<RuleDescr> orules = new ArrayList<RuleDescr>( opkg.getRules() ); // needs to be cloned
                String pkgName = isEmpty(cpkg.getName()) ? getDefaultPackageName() : cpkg.getName();


                for( RuleDescr crd : cpkg.getRules() ) {

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Examples of org.drools.compiler.compiler.DrlParser

     */
    public void addPackageFromDrl(final Reader reader,
                                  final Resource sourceResource) throws DroolsParserException,
                                                                        IOException {
        this.resource = sourceResource;
        final DrlParser parser = new DrlParser(configuration.getLanguageLevel());
        final PackageDescr pkg = parser.parse(sourceResource, reader);
        this.results.addAll(parser.getErrors());
        if (pkg == null) {
            addBuilderResult(new ParserError(sourceResource, "Parser returned a null Package", 0, 0));
        }


        if (!parser.hasErrors()) {
            addPackage(pkg);
        }
        this.resource = null;
    }

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