Package org.drools.compiler

Examples of org.drools.compiler.PackageRegistry

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        //org.drools.rule.Package pkg = new org.drools.rule.Package( "org.drools" );
        final PackageBuilder pkgBuilder = new PackageBuilder();
        pkgBuilder.addPackage( new PackageDescr( "org.drools" ) );
        final PackageBuilderConfiguration conf = pkgBuilder.getPackageBuilderConfiguration();
        PackageRegistry pkgReg = pkgBuilder.getPackageRegistry( "org.drools" );
        Package pkg = pkgReg.getPackage();
        DialectCompiletimeRegistry dialectRegistry = pkgReg.getDialectCompiletimeRegistry();
        Dialect dialect = dialectRegistry.getDialect( "java" );
               
        RuleDescr ruleDescr = new RuleDescr("test rule");
        RuleBuildContext context = new RuleBuildContext( pkgBuilder, ruleDescr, dialectRegistry, pkg, dialect);
       
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        if ( factTemplate != null ) {
            objectType = new FactTemplateObjectType( factTemplate );
        } else {
            try {
                final Class< ? > userProvidedClass = context.getDialect().getTypeResolver().resolveType( patternDescr.getObjectType() );
                PackageRegistry pkgr = context.getPackageBuilder().getPackageRegistry( ClassUtils.getPackage( userProvidedClass ) );
                org.drools.rule.Package pkg = pkgr == null ? context.getPkg() : pkgr.getPackage();
                final boolean isEvent = pkg.isEvent( userProvidedClass );
                objectType = new ClassObjectType( userProvidedClass,
                                                  isEvent );
            } catch ( final ClassNotFoundException e ) {
                // swallow as we'll do another check in a moment and then record the problem
            }
        }

        // lets see if it maps to a query
        if ( objectType == null ) {
            RuleConditionElement rce = null;
            // it might be a recursive query, so check for same names
            if ( context.getRule().getName().equals( patternDescr.getObjectType() ) ) {
                // it's a query so delegate to the QueryElementBuilder
                QueryElementBuilder qeBuilder = new QueryElementBuilder();
                rce = qeBuilder.build( context,
                                        descr,
                                        prefixPattern,
                                        (Query) context.getRule() );
            }

            if ( rce == null ) {
                Rule rule = context.getPkg().getRule( patternDescr.getObjectType() );
                if ( rule != null && rule instanceof Query ) {
                    // it's a query so delegate to the QueryElementBuilder
                    QueryElementBuilder qeBuilder = new QueryElementBuilder();
                    rce = qeBuilder.build( context,
                                           descr,
                                           prefixPattern,
                                           (Query) rule );
                }

                // try package imports
                for ( String importName : context.getDialect().getTypeResolver().getImports() ) {
                    importName = importName.trim();
                    int pos = importName.indexOf( '*' );
                    if ( pos >= 0 ) {
                        String pkgName = importName.substring( 0,
                                                               pos - 1 );
                        PackageRegistry pkgReg = context.getPackageBuilder().getPackageRegistry( pkgName );
                        if ( pkgReg != null ) {
                            rule = pkgReg.getPackage().getRule( patternDescr.getObjectType() );
                            if ( rule != null && rule instanceof Query ) {
                                // it's a query so delegate to the QueryElementBuilder
                                QueryElementBuilder qeBuilder = new QueryElementBuilder();
                                rce = qeBuilder.build( context,
                                                       descr,
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                                          builder.getPackageRegistry( packageDescr.getNamespace() ).getDialectCompiletimeRegistry() );
                } else {
                    result = new DRLInfo( resource == null ? "" : resource.getProjectRelativePath().toString(),
                                          packageDescr,
                                          parserErrors,
                                          new PackageRegistry(builder, new Package("")).getDialectCompiletimeRegistry() );
                }

                // cache result
                if ( useCache && resource != null) {
                    if ( compile && !parser.hasErrors() ) {
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                                          builder.getPackageRegistry( packageDescr.getNamespace() ).getDialectCompiletimeRegistry() );
                } else {
                    result = new DRLInfo( resource == null ? "" : resource.getProjectRelativePath().toString(),
                                          packageDescr,
                                          parserErrors,
                                          new PackageRegistry(builder, new Package("")).getDialectCompiletimeRegistry() );
                }

                // cache result
                if ( useCache && resource != null) {
                    if ( compile && !parser.hasErrors() ) {
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    private static ParserContext createInitialContext(Map params,
                                                      String qualifiedName,
                                                      MVELDialect dialect) {

        //Lookup ParserConfiguration to retrieve imports and package imports
        PackageRegistry packageRegistry = dialect.getPackageRegistry();
        MVELDialectRuntimeData data = (MVELDialectRuntimeData) packageRegistry.getDialectRuntimeRegistry().getDialectData( dialect.getId() );
        ParserConfiguration pconf = data.getParserConfiguration();

        final ParserContext context = new ParserContext( pconf.getImports(),
                                                         null,
                                                         qualifiedName );
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        if ( factTemplate != null ) {
            objectType = new FactTemplateObjectType( factTemplate );
        } else {
            try {
                final Class< ? > userProvidedClass = context.getDialect().getTypeResolver().resolveType( patternDescr.getObjectType() );
                PackageRegistry pkgr = context.getPackageBuilder().getPackageRegistry( ClassUtils.getPackage( userProvidedClass ) );
                org.drools.rule.Package pkg = pkgr == null ? context.getPkg() : pkgr.getPackage();
                final boolean isEvent = pkg.isEvent( userProvidedClass );
                objectType = new ClassObjectType( userProvidedClass,
                                                  isEvent );
            } catch ( final ClassNotFoundException e ) {
                // swallow as we'll do another check in a moment and then record the problem
            }
        }

        // lets see if it maps to a query
        if ( objectType == null ) {
            RuleConditionElement rce = null;
            // it might be a recursive query, so check for same names
            if ( context.getRule().getName().equals( patternDescr.getObjectType() ) ) {
                // it's a query so delegate to the QueryElementBuilder
                QueryElementBuilder qeBuilder = new QueryElementBuilder();
                rce = qeBuilder.build( context,
                                        descr,
                                        prefixPattern,
                                        (Query) context.getRule() );
            }

            if ( rce == null ) {
                Rule rule = context.getPkg().getRule( patternDescr.getObjectType() );
                if ( rule != null && rule instanceof Query ) {
                    // it's a query so delegate to the QueryElementBuilder
                    QueryElementBuilder qeBuilder = new QueryElementBuilder();
                    rce = qeBuilder.build( context,
                                           descr,
                                           prefixPattern,
                                           (Query) rule );
                }
               
                // try package imports
                for ( String importName : context.getDialect().getTypeResolver().getImports() ) {
                    importName = importName.trim();
                    int pos = importName.indexOf( '*' );
                    if ( pos >= 0 ) {
                        String pkgName = importName.substring( 0, pos-1 );
                        PackageRegistry pkgReg = context.getPackageBuilder().getPackageRegistry( pkgName );
                        if ( pkgReg != null ) {
                            rule = pkgReg.getPackage().getRule( patternDescr.getObjectType() );
                            if ( rule != null && rule instanceof Query ) {
                                // it's a query so delegate to the QueryElementBuilder
                                QueryElementBuilder qeBuilder = new QueryElementBuilder();
                                rce = qeBuilder.build( context,
                                                       descr,
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        if ( factTemplate != null ) {
            objectType = new FactTemplateObjectType( factTemplate );
        } else {
            try {
                final Class< ? > userProvidedClass = context.getDialect().getTypeResolver().resolveType( patternDescr.getObjectType() );
                PackageRegistry pkgr = context.getPackageBuilder().getPackageRegistry( ClassUtils.getPackage( userProvidedClass ) );
                org.drools.rule.Package pkg = pkgr == null ? context.getPkg() : pkgr.getPackage();
                final boolean isEvent = pkg.isEvent( userProvidedClass );
                objectType = new ClassObjectType( userProvidedClass,
                                                  isEvent );
            } catch ( final ClassNotFoundException e ) {
                // swallow as we'll do another check in a moment and then record the problem
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        Rule rule = new Rule( ruleDescr.getName() );
        rule.addPattern( new Pattern( 0,
                                      new ClassObjectType( Cheese.class ),
                                      "$cheese" ) );

        PackageRegistry pkgRegistry = pkgBuilder.getPackageRegistry( pkg.getName() );
        DialectCompiletimeRegistry reg = pkgBuilder.getPackageRegistry( pkg.getName() ).getDialectCompiletimeRegistry();
        context = new RuleBuildContext( pkgBuilder,
                                        ruleDescr,
                                        reg,
                                        pkg,
                                        reg.getDialect( pkgRegistry.getDialect() ) );
        context.getBuildStack().push( rule.getLhs() );
    }
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        //org.drools.rule.Package pkg = new org.drools.rule.Package( "org.drools" );       
        final PackageBuilder pkgBuilder = new PackageBuilder();
        pkgBuilder.addPackage( new PackageDescr( "org.drools" ) );
        final PackageBuilderConfiguration conf = pkgBuilder.getPackageBuilderConfiguration();
        PackageRegistry pkgReg = pkgBuilder.getPackageRegistry( "org.drools" );
        Package pkg = pkgReg.getPackage();
        DialectCompiletimeRegistry dialectRegistry = pkgReg.getDialectCompiletimeRegistry();
        Dialect dialect = dialectRegistry.getDialect( "java" );
               
        RuleDescr ruleDescr = new RuleDescr("test rule");
        RuleBuildContext context = new RuleBuildContext( pkgBuilder, ruleDescr, dialectRegistry, pkg, dialect);
       
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            ruleDescr.getNamedConsequences().put( entry.getKey(), entry.getValue() );
        }

        Rule rule = new Rule( ruleDescr.getName() );
       
        PackageRegistry pkgRegistry = pkgBuilder.getPackageRegistry( pkg.getName() );
        DialectCompiletimeRegistry reg = pkgBuilder.getPackageRegistry( pkg.getName() ).getDialectCompiletimeRegistry();
        context = new RuleBuildContext( pkgBuilder,
                                        ruleDescr,
                                        reg,
                                        pkg,
                                        reg.getDialect( pkgRegistry.getDialect() ) );       
       
        rule.addPattern( new Pattern( 0,
                                      new ClassObjectType( Cheese.class ),
                                      "$cheese" ) );
       
        Pattern p = new Pattern( 1,
                               new ClassObjectType( Person.class ),
                               "$persone" );
       
       
       
        Declaration declr = p.addDeclaration( "age" );

        final InternalReadAccessor extractor = PatternBuilder.getFieldReadAccessor( context,
                                                                                    new BindingDescr("age", "age"),
                                                                                    p.getObjectType(),
                                                                                    "age",
                                                                                    declr,
                                                                                    true );
       
        rule.addPattern( p );
       
        context.getBuildStack().push( rule.getLhs() );
       
        context.getDialect().getConsequenceBuilder().build( context, "default" );
        for ( String name : namedConsequences.keySet() ) {
            context.getDialect().getConsequenceBuilder().build( context, name );
        }
       
        context.getDialect().addRule( context );
        pkgRegistry.getPackage().addRule( context.getRule() );
        pkgBuilder.compileAll();
        pkgBuilder.reloadAll();
    }
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Related Classes of org.drools.compiler.PackageRegistry

  • org.drools.base.ClassTypeResolver
  • org.drools.eclipse.DroolsEclipsePlugin
  • org.drools.eclipse.editors.completion.RuleCompletionProcessor
  • org.drools.reteoo.compiled.ObjectTypeNodeCompiler
  • org.drools.rule.builder.dialect.java.JavaAccumulateBuilderTest
  • org.drools.rule.builder.dialect.java.JavaConsequenceBuilderTest
  • org.drools.rule.builder.dialect.mvel.MVELConsequenceBuilderTest
  • org.drools.rule.builder.dialect.mvel.MVELDecisionBuilderTest
  • org.drools.rule.builder.dialect.mvel.MVELPredicateBuilderTest
  • org.drools.rule.builder.PatternBuilder
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