Package org.drools.lang.descr

Examples of org.drools.lang.descr.PackageDescr

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

        DrlParser parser = new DrlParser();
        PackageDescr desc = parser.parse( new InputStreamReader( getClass().getResourceAsStream( "nested_fields.drl" ) ) );
        List packageAttrs = desc.getAttributes();
        assertEquals( 1,
                      desc.getRules().size() );
        assertEquals( 1,
                      packageAttrs.size() );

        RuleDescr rule = (RuleDescr) desc.getRules().get( 0 );
        List ruleAttrs = rule.getAttributes();
        assertEquals( 1,
                      ruleAttrs.size() );

        assertEquals( "mvel",
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                    list.get( 5 ) );
    }

    public void testFromWithNewConstructor() throws Exception {
        DrlParser parser = new DrlParser();
        PackageDescr descr = parser.parse( new InputStreamReader( getClass().getResourceAsStream( "test_FromWithNewConstructor.drl" ) ) );
        PackageBuilder builder = new PackageBuilder();
        builder.addPackage( descr );
        Package pkg = builder.getPackage();
        pkg.checkValidity();
    }
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        assertTrue( list4.contains( chili1 ) );
    }

    public void testDumpers() throws Exception {
        final DrlParser parser = new DrlParser();
        final PackageDescr pkg = parser.parse( new InputStreamReader( getClass().getResourceAsStream( "test_Dumpers.drl" ) ) );

        PackageBuilder builder = new PackageBuilder();
        builder.addPackage( pkg );

        RuleBase ruleBase = getRuleBase();
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     */
    public void addPackageFromDrl(final Reader reader) throws DroolsParserException,
                                                        IOException {
        this.resource = new ReaderResource( reader );
        final DrlParser parser = new DrlParser();
        final PackageDescr pkg = parser.parse( reader );
        this.results.addAll( parser.getErrors() );
        if ( pkg == null ) {
            this.results.add( new ParserError( "Parser returned a null Package",
                                               0,
                                               0 ) );
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    }

    public void addPackageFromDrl(Resource resource) throws DroolsParserException,
                                                      IOException {
        this.resource = resource;
        PackageDescr pkg = null;
        boolean hasErrors = false;
        if ( resource instanceof DescrResource ) {
            pkg = (PackageDescr) ((DescrResource) resource).getDescr();
        } else {
            final DrlParser parser = new DrlParser();
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                                   final Reader dsl) throws DroolsParserException,
                                                     IOException {
        this.resource = new ReaderResource( source );

        final DrlParser parser = new DrlParser();
        final PackageDescr pkg = parser.parse( source,
                                               dsl );
        this.results.addAll( parser.getErrors() );
        if ( !parser.hasErrors() ) {
            addPackage( pkg );
        }
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            String str = expander.expand( resource.getReader() );
            if ( expander.hasErrors() ) {
                this.results.addAll( expander.getErrors() );
            }

            final PackageDescr pkg = parser.parse( str );
            this.results.addAll( parser.getErrors() );
            if ( !parser.hasErrors() ) {
                addPackage( pkg );
            }
        } catch ( IOException e ) {
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                    knowledge = new StringReader( expander.expand( knowledge ) );
                    if ( expander.hasErrors() ) this.results.addAll( expander.getErrors() );
                }
            }

            PackageDescr pkg = parser.parse( knowledge );
            if ( parser.hasErrors() ) {
                this.results.addAll( parser.getErrors() );
            } else {
                addPackage( pkg );
            }
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        if ( pkgRegistry != null ) {
            pkg = pkgRegistry.getPackage();
        }

        if ( pkg == null ) {
            pkg = newPackage( new PackageDescr( newPkg.getName() ) ).getPackage();
        }

        // first merge anything related to classloader re-wiring
        pkg.getDialectRuntimeRegistry().merge( newPkg.getDialectRuntimeRegistry(),
                                               this.rootClassLoader );
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