Package org.drools.core.rule

Examples of org.drools.core.rule.JavaDialectRuntimeData$PackageClassLoader

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    private Package getPackage(String pack) {
        Package pkg = ruleBase.getPackage( pack );
        if ( pkg == null ) {
            pkg = new Package( pack );
            JavaDialectRuntimeData data = new JavaDialectRuntimeData();
            pkg.getDialectRuntimeRegistry().setDialectData( "java", data );
            data.onAdd(pkg.getDialectRuntimeRegistry(),
                    ruleBase.getRootClassLoader());
            ruleBase.addPackages( Arrays.asList(pkg) );
        }
        return pkg;
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        this.ruleBase = (ReteooRuleBase) RuleBaseFactory.newRuleBase();

        pkg = new org.drools.core.rule.Package("org.droos.test");
        pkg.setClassFieldAccessorCache(new ClassFieldAccessorCache(Thread.currentThread().getContextClassLoader()));

        JavaDialectRuntimeData data = new JavaDialectRuntimeData();
        data.onAdd(pkg.getDialectRuntimeRegistry(), ruleBase.getRootClassLoader());
        pkg.getDialectRuntimeRegistry().setDialectData("java", data);

        // we need to add one rule to the package because the previous deadlock was encountered
        // while removing rules from a package when said package is removed from the rulebase
        rule = new Rule("Test");
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        </dimension>
*/

    private Class build(ClassBuilder builder, ClassDefinition classDef) throws Exception {
        byte[] d = builder.buildClass( classDef);
        JavaDialectRuntimeData data = new JavaDialectRuntimeData();
        data.write( JavaDialectRuntimeData.convertClassToResourcePath( classDef.getClassName() ),
                       d );
        ClassLoader classLoader = new PackageClassLoader(data, ClassLoaderUtil.getClassLoader( null, getClass(), false ));
       
        ClassFieldAccessorStore store = new ClassFieldAccessorStore();
        store.setClassFieldAccessorCache( new ClassFieldAccessorCache( classLoader ) );
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    ClassLoader classLoader;
    JavaDialectRuntimeData data;
   
    @Before
    public void setUp() throws Exception {
        data = new JavaDialectRuntimeData();
    }
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                // we have to do this before the merging, as it does some classloader resolving
                String lastType = null;
                try {
                    // Add the type declarations to the RuleBase
                    if ( newPkg.getTypeDeclarations() != null ) {
                        JavaDialectRuntimeData runtime = ((JavaDialectRuntimeData) newPkg.getDialectRuntimeRegistry().getDialectData( "java" ));

                        // add type declarations
                        for ( TypeDeclaration newDecl : newPkg.getTypeDeclarations().values() ) {
                            lastType = newDecl.getTypeClassName();


                            TypeDeclaration typeDeclaration = this.classTypeDeclaration.get( newDecl.getTypeClassName() );
                            if ( typeDeclaration == null ) {
                                String className = newDecl.getTypeClassName();

                                byte [] def = runtime.getClassDefinition(convertClassToResourcePath(className));
                                Class<?> definedKlass = registerAndLoadTypeDefinition( className, def );

                                if ( definedKlass == null && typeDeclaration.isNovel() ) {
                                    throw new RuntimeException( "Registering null bytes for class " + className );
                                }
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    public String getName() {
        return this.name;
    }

    public ClassLoader getPackageClassLoader() {
        JavaDialectRuntimeData javaRuntime = (JavaDialectRuntimeData) getDialectRuntimeRegistry().getDialectData( "java" );
        return javaRuntime.getClassLoader();
    }
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    public boolean removeObjectsGeneratedFromResource(Resource resource) {
        List<RuleImpl> rulesToBeRemoved = removeRulesGeneratedFromResource(resource);

        List<TypeDeclaration> typesToBeRemoved = getTypesGeneratedFromResource(resource);
        if (!typesToBeRemoved.isEmpty()) {
            JavaDialectRuntimeData dialect = (JavaDialectRuntimeData) getDialectRuntimeRegistry().getDialectData( "java" );
            for (TypeDeclaration type : typesToBeRemoved) {
                if ( type.getTypeClassName() != null ) {
                    // the type declaration might not have been built up to actual class, if an error was found first
                    // in this case, no accessor would have been wired
                    classFieldAccessorStore.removeType(type);
                    dialect.remove(type.getTypeClassName());
                }
                removeTypeDeclaration(type.getTypeName());
            }
            dialect.reload();
        }

        List<Function> functionsToBeRemoved = removeFunctionsGeneratedFromResource(resource);

        return !rulesToBeRemoved.isEmpty() || !typesToBeRemoved.isEmpty() || !functionsToBeRemoved.isEmpty();
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        this.src = new MemoryResourceReader();

        this.generatedClassList = new ArrayList<String>();

        JavaDialectRuntimeData data = (JavaDialectRuntimeData) pkg.getDialectRuntimeRegistry().getDialectData( ID );

        // initialise the dialect runtime data if it doesn't already exist
        if ( data == null ) {
            data = new JavaDialectRuntimeData();
            this.pkg.getDialectRuntimeRegistry().setDialectData( ID,
                                                                 data );
            data.onAdd( this.pkg.getDialectRuntimeRegistry(),
                        rootClassLoader );
        } else {
            data = (JavaDialectRuntimeData) pkg.getDialectRuntimeRegistry().getDialectData( ID );
        }
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                             this.src,
                             new RuleErrorHandler( ruleDescr,
                                                   rule,
                                                   "Rule Compilation error" ) );

        JavaDialectRuntimeData data = (JavaDialectRuntimeData) this.pkg.getDialectRuntimeRegistry().getDialectData( ID );

        for ( Map.Entry<String, String> invokers : context.getInvokers().entrySet() ) {
            final String className = invokers.getKey();

            // Check if an invoker - returnvalue, predicate, eval or consequence has been associated
            // If so we add it to the PackageCompilationData as it will get wired up on compilation
            final Object invoker = context.getInvokerLookups().get( className );
            if ( invoker != null ) {
                data.putInvoker( className,
                                 invoker );
            }
            final String text = invokers.getValue();

            final BaseDescr descr = (BaseDescr) context.getDescrLookups().get( className );
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        Dialect dialect = pkgRegistry.getDialectCompiletimeRegistry().getDialect(functionDescr.getDialect());
        dialect.postCompileAddFunction(functionDescr, pkgRegistry.getTypeResolver());

        if (rootClassLoader instanceof ProjectClassLoader) {
            String functionClassName = functionDescr.getClassName();
            JavaDialectRuntimeData runtime = ((JavaDialectRuntimeData) pkgRegistry.getDialectRuntimeRegistry().getDialectData( "java" ));
            byte [] def = runtime.getStore().get(convertClassToResourcePath(functionClassName));
            if (def != null) {
                ((ProjectClassLoader)rootClassLoader).storeClass(functionClassName, def);
            }
        }
    }
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Related Classes of org.drools.core.rule.JavaDialectRuntimeData$PackageClassLoader

  • org.drools.compiler.builder.impl.DeclaredClassBuilder
  • org.drools.compiler.builder.impl.KnowledgeBuilderImpl
  • org.drools.compiler.builder.impl.TypeDeclarationBuilder
  • org.drools.compiler.compiler.PackageBuilder
  • org.drools.compiler.compiler.PackageBuilderTest
  • org.drools.compiler.kie.builder.impl.KieBuilderImpl
  • org.drools.compiler.kie.builder.impl.KieMetaInfoBuilder
  • org.drools.compiler.rule.builder.dialect.java.JavaDialect
  • org.drools.compiler.rule.builder.dialect.java.JavaRuleBuilderHelper
  • org.drools.core.common.AbstractRuleBase
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