Package org.drools.core.rule

Examples of org.drools.core.rule.Package

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    }

    private Map<String, RuleBuildContext> preProcessRules(PackageDescr packageDescr, PackageRegistry pkgRegistry) {
        Map<String, RuleBuildContext> ruleCxts = buildRuleBuilderContext(packageDescr.getRules());

        Package pkg = pkgRegistry.getPackage();
        if (this.ruleBase != null) {
            boolean needsRemoval = false;

            // first, check if any rules no longer exist
            for( Rule rule : pkg.getRules() ) {
                if (filterAcceptsRemoval( rule.getPackageName(), rule.getName() ) ) {
                    needsRemoval = true;
                    break;
                }
            }

            if( !needsRemoval ) {
                for (RuleDescr ruleDescr : packageDescr.getRules()) {
                    if (filterAccepts(ruleDescr.getNamespace(), ruleDescr.getName()) ) {
                        if (pkg.getRule(ruleDescr.getName()) != null) {
                            needsRemoval = true;
                            break;
                        }
                    }
                }
            }
           
            if (needsRemoval) {
                try {
                    this.ruleBase.lock();
                    for( Rule rule : pkg.getRules() ) {
                        if (filterAcceptsRemoval( rule.getPackageName(), rule.getName() ) ) {
                            this.ruleBase.removeRule(pkg, pkg.getRule(rule.getName()));
                            pkg.removeRule(rule);
                        }
                    }
                    for (RuleDescr ruleDescr : packageDescr.getRules()) {
                        if (filterAccepts(ruleDescr.getNamespace(), ruleDescr.getName()) ) {
                            if (pkg.getRule(ruleDescr.getName()) != null) {
                                // XXX: this one notifies listeners
                                this.ruleBase.removeRule(pkg, pkg.getRule(ruleDescr.getName()));
                            }
                        }
                    }
                } finally {
                    this.ruleBase.unlock();
                }
            }
        }

        // Pre Process each rule, needed for Query signuture registration
        for (RuleDescr ruleDescr : packageDescr.getRules()) {
            if (filterAccepts(ruleDescr.getNamespace(), ruleDescr.getName()) ) {
                RuleBuildContext ruleBuildContext = ruleCxts.get(ruleDescr.getName());
                ruleBuilder.preProcess(ruleBuildContext);
                pkg.addRule(ruleBuildContext.getRule());
            }
        }
        return ruleCxts;
    }
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    private void sortRulesByDependency(PackageDescr packageDescr) {
        // Using a topological sorting algorithm
        // see http://en.wikipedia.org/wiki/Topological_sorting

        PackageRegistry pkgRegistry = this.pkgRegistryMap.get(packageDescr.getNamespace());
        Package pkg = pkgRegistry.getPackage();

        List<RuleDescr> roots = new LinkedList<RuleDescr>();
        Map<String, List<RuleDescr>> children = new HashMap<String, List<RuleDescr>>();
        LinkedHashMap<String, RuleDescr> sorted = new LinkedHashMap<String, RuleDescr>();
        List<RuleDescr> queries = new ArrayList<RuleDescr>();

        for (RuleDescr ruleDescr : packageDescr.getRules()) {
            if (ruleDescr.isQuery()) {
                queries.add(ruleDescr);
            } else if (!ruleDescr.hasParent()) {
                roots.add(ruleDescr);
            } else if (pkg.getRule(ruleDescr.getParentName()) != null) {
                // The parent of this rule has been already compiled
                sorted.put(ruleDescr.getName(), ruleDescr);
            } else {
                List<RuleDescr> childz = children.get(ruleDescr.getParentName());
                if (childz == null) {
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        return results;
    }

    public synchronized void addPackage(final Package newPkg) {
        PackageRegistry pkgRegistry = this.pkgRegistryMap.get(newPkg.getName());
        Package pkg = null;
        if (pkgRegistry != null) {
            pkg = pkgRegistry.getPackage();
        }

        if (pkg == null) {
            PackageDescr packageDescr = new PackageDescr(newPkg.getName());
            pkgRegistry = newPackage(packageDescr);
            mergePackage(this.pkgRegistryMap.get(packageDescr.getNamespace()), packageDescr);
            pkg = pkgRegistry.getPackage();
        }

        // first merge anything related to classloader re-wiring
        pkg.getDialectRuntimeRegistry().merge(newPkg.getDialectRuntimeRegistry(),
                this.rootClassLoader);
        if (newPkg.getFunctions() != null) {
            for (Map.Entry<String, Function> entry : newPkg.getFunctions().entrySet()) {
                if (pkg.getFunctions().containsKey(entry.getKey())) {
                    this.results.add(new DuplicateFunction(entry.getValue(),
                            this.configuration));
                }
                pkg.addFunction(entry.getValue());
            }
        }
        pkg.getClassFieldAccessorStore().merge(newPkg.getClassFieldAccessorStore());
        pkg.getDialectRuntimeRegistry().onBeforeExecute();

        // we have to do this before the merging, as it does some classloader resolving
        TypeDeclaration lastType = null;
        try {
            // Resolve the class for the type declaation
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    //    }

    private void validateUniqueRuleNames(final PackageDescr packageDescr) {
        final Set<String> names = new HashSet<String>();
        PackageRegistry packageRegistry = this.pkgRegistryMap.get(packageDescr.getNamespace());
        Package pkg = null;
        if (packageRegistry != null) {
            pkg = packageRegistry.getPackage();
        }
        for (final RuleDescr rule : packageDescr.getRules()) {
            validateRule(packageDescr, rule);

            final String name = rule.getName();
            if (names.contains(name)) {
                this.results.add(new ParserError(rule.getResource(),
                        "Duplicate rule name: " + name,
                        rule.getLine(),
                        rule.getColumn(),
                        packageDescr.getNamespace()));
            }
            if (pkg != null) {
                Rule duplicatedRule = pkg.getRule(name);
                if (duplicatedRule != null) {
                    Resource resource = rule.getResource();
                    Resource duplicatedResource = duplicatedRule.getResource();
                    if (resource == null || duplicatedResource == null || duplicatedResource.getSourcePath() == null ||
                            duplicatedResource.getSourcePath().equals(resource.getSourcePath())) {
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            }
        }
    }

    private PackageRegistry newPackage(final PackageDescr packageDescr) {
        Package pkg;
        if (this.ruleBase == null || (pkg = this.ruleBase.getPackage(packageDescr.getName())) == null) {
            // there is no rulebase or it does not define this package so define it
            pkg = new Package(packageDescr.getName());
            pkg.setClassFieldAccessorCache(new ClassFieldAccessorCache(this.rootClassLoader));

            // if there is a rulebase then add the package.
            if (this.ruleBase != null) {
                // Must lock here, otherwise the assumption about addPackage/getPackage behavior below might be violated
                this.ruleBase.lock();
                try {
                    this.ruleBase.addPackage(pkg);
                    pkg = this.ruleBase.getPackage(packageDescr.getName());
                } finally {
                    this.ruleBase.unlock();
                }
            } else {
                // the RuleBase will also initialise the
                pkg.getDialectRuntimeRegistry().onAdd(this.rootClassLoader);
            }
        }

        PackageRegistry pkgRegistry = new PackageRegistry(this, pkg);
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        processFunctions(pkgRegistry, packageDescr);
        processGlobals(pkgRegistry, packageDescr);

        // need to reinsert this to ensure that the package is the first/last one in the ordered map
        // this feature is exploited by the knowledgeAgent
        Package current = getPackage();
        this.pkgRegistryMap.remove(packageDescr.getName());
        this.pkgRegistryMap.put(packageDescr.getName(), pkgRegistry);
        if (!current.getName().equals(packageDescr.getName())) {
            currentRulePackage = pkgRegistryMap.size() - 1;
        }
    }
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            KnowledgePackageImp kpkg = (KnowledgePackageImp) object;
            overrideReSource( kpkg.pkg, resource );
            addPackage( kpkg.pkg );
        } else if ( object instanceof Package ) {
            // Old Drools 4 API
            Package pkg = (Package) object;
            overrideReSource( pkg, resource );
            addPackage( pkg );
        } else if ( object instanceof Package[] ) {
            // Old Drools 4 API
            Package[] pkgs = (Package[]) object;
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    private void sortRulesByDependency(PackageDescr packageDescr) {
        // Using a topological sorting algorithm
        // see http://en.wikipedia.org/wiki/Topological_sorting

        PackageRegistry pkgRegistry = this.pkgRegistryMap.get( packageDescr.getNamespace() );
        Package pkg = pkgRegistry.getPackage();

        List<RuleDescr> roots = new LinkedList<RuleDescr>();
        Map<String, List<RuleDescr>> children = new HashMap<String, List<RuleDescr>>();
        LinkedHashMap<String, RuleDescr> sorted = new LinkedHashMap<String, RuleDescr>();
        List<RuleDescr> queries = new ArrayList<RuleDescr>();

        for ( RuleDescr ruleDescr : packageDescr.getRules() ) {
            if ( ruleDescr.isQuery() ) {
                queries.add(ruleDescr);
            } else if ( !ruleDescr.hasParent() ) {
                roots.add(ruleDescr);
            } else if ( pkg.getRule( ruleDescr.getParentName() ) != null ) {
                // The parent of this rule has been already compiled
                sorted.put( ruleDescr.getName(), ruleDescr );
            } else {
                List<RuleDescr> childz = children.get( ruleDescr.getParentName() );
                if ( childz == null ) {
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        return results;
    }

    public synchronized void addPackage(final Package newPkg) {
        PackageRegistry pkgRegistry = this.pkgRegistryMap.get( newPkg.getName() );
        Package pkg = null;
        if ( pkgRegistry != null ) {
            pkg = pkgRegistry.getPackage();
        }

        if ( pkg == null ) {
            PackageDescr packageDescr = new PackageDescr( newPkg.getName() );
            pkgRegistry = newPackage( packageDescr );
            mergePackage( this.pkgRegistryMap.get( packageDescr.getNamespace() ), packageDescr );
            pkg = pkgRegistry.getPackage();
        }

        // first merge anything related to classloader re-wiring
        pkg.getDialectRuntimeRegistry().merge( newPkg.getDialectRuntimeRegistry(),
                                               this.rootClassLoader );
        if ( newPkg.getFunctions() != null ) {
            for ( Map.Entry<String, Function> entry : newPkg.getFunctions().entrySet() ) {
                if ( pkg.getFunctions().containsKey( entry.getKey() ) ) {
                    this.results.add( new DuplicateFunction( entry.getValue(),
                                                             this.configuration ) );
                }
                pkg.addFunction( entry.getValue() );
            }
        }
        pkg.getClassFieldAccessorStore().merge( newPkg.getClassFieldAccessorStore() );
        pkg.getDialectRuntimeRegistry().onBeforeExecute();

        // we have to do this before the merging, as it does some classloader resolving
        TypeDeclaration lastType = null;
        try {
            // Resolve the class for the type declaation
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    //    }

    private void validateUniqueRuleNames(final PackageDescr packageDescr) {
        final Set<String> names = new HashSet<String>();
        PackageRegistry packageRegistry = this.pkgRegistryMap.get( packageDescr.getNamespace() );
        Package pkg = null;
        if ( packageRegistry != null ) {
            pkg = packageRegistry.getPackage();
        }
        for ( final RuleDescr rule : packageDescr.getRules() ) {
            validateRule( packageDescr, rule );

            final String name = rule.getName();
            if ( names.contains( name ) ) {
                this.results.add( new ParserError( rule.getResource(),
                                                   "Duplicate rule name: " + name,
                                                   rule.getLine(),
                                                   rule.getColumn(),
                                                   packageDescr.getNamespace() ) );
            }
            if ( pkg != null ) {
                Rule duplicatedRule = pkg.getRule( name );
                if ( duplicatedRule != null ) {
                    Resource resource = rule.getResource();
                    Resource duplicatedResource = duplicatedRule.getResource();
                    if ( resource == null || duplicatedResource == null || duplicatedResource.getSourcePath() == null ||
                         duplicatedResource.getSourcePath().equals( resource.getSourcePath() ) ) {
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Related Classes of org.drools.core.rule.Package

  • org.drools.compiler.compiler.CompilerPerfProfileTest
  • org.drools.compiler.compiler.PackageBuilder
  • org.drools.compiler.compiler.PackageBuilderConfigurationTest
  • org.drools.compiler.compiler.PackageBuilderTest
  • org.drools.compiler.compiler.PackageRegistry
  • org.drools.compiler.compiler.RuleBaseLoader
  • org.drools.compiler.integrationtests.DynamicRulesTest
  • org.drools.compiler.integrationtests.eventgenerator.example.ExampleScenario
  • org.drools.compiler.integrationtests.ExecutionFlowControlTest
  • org.drools.compiler.integrationtests.FirstOrderLogicTest
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