Examples of org.drools.compiler.compiler.PackageBuilder

org.drools.compiler.compiler.PackageBuilder
This is the main compiler class for parsing and compiling rules and assembling or merging them into a binary Package instance. This can be done by merging into existing binary packages, or totally from source. If you are using the Java dialect the JavaDialectConfiguration will attempt to validate that the specified compiler is in the classpath, using ClassLoader.loasClass(String). If you intented to just Janino sa the compiler you must either overload the compiler property before instantiating this class or the PackageBuilder, or make sure Eclipse is in the classpath, as Eclipse is the default. Normally, a complete package is built using one of the applicable addPackageFromXXX methods. It is however possible to construct a package incrementally by adding individual component parts. When a package is built incrementally package level attributes are cached and applied to Rules subsequently added. Caution should be exercised when using the same PackageBuilder to construct packages from multiple sources as the cached package level attributes will still apply even if the resource added to PackageBuilder does not explicitly include package level attributes.

    private RuleBase readRule(String drl) {
        try {
            //            logger.info(drl);
            // read in the source
            Reader source = new StringReader(drl);
            PackageBuilder builder = new PackageBuilder();
            builder.addPackageFromDrl(source);
            Package pkg = builder.getPackage();


            // add the package to a rulebase (deploy the rule package).
            RuleBase ruleBase = RuleBaseFactory.newRuleBase();
            ruleBase.addPackage(pkg);
            return ruleBase;

View Full Code Here

        final InputStream is = getClass().getClassLoader().getResourceAsStream( "simplerule.drl" );
        String drl = streamToString( is );


        DrlParser parser = new DrlParser();
        PackageDescr packageDescr = parser.parse(null, drl);
        PackageBuilder builder = new PackageBuilder();
        builder.addPackage(packageDescr);
        Package pkg = builder.getPackage();
        ReteooRuleBase ruleBase = (ReteooRuleBase) RuleBaseFactory.newRuleBase(RuleBase.RETEOO);
        ruleBase.addPackage(pkg);


        final ReteooVisitor visitor = new ReteooVisitor( graph );
        visitor.visit( ruleBase );

View Full Code Here

                      "rule R1 when\n" +
                      "   StockTick()\n" +
                      "then\n" +
                      "end\n";


        PackageBuilder pkgbuilder = new PackageBuilder();
        pkgbuilder.addPackageFromDrl( new StringReader( rule ) );
        assertFalse( pkgbuilder.getErrors().toString(), pkgbuilder.hasErrors() );


        Package pkg = pkgbuilder.getPackage();


        byte[] spkg = DroolsStreamUtils.streamOut( pkg );


        KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
        kbuilder.add( ResourceFactory.newByteArrayResource( spkg ), ResourceType.PKG );

View Full Code Here

                      "rule R1 when\n" +
                      "   StockTick()\n" +
                      "then\n" +
                      "end\n";


        PackageBuilder pkgbuilder = new PackageBuilder();
        pkgbuilder.addPackageFromDrl( new StringReader( rule ) );
        assertFalse( pkgbuilder.getErrors().toString(), pkgbuilder.hasErrors() );


        Package[] pkgs = pkgbuilder.getPackages();


        byte[] spkgs = DroolsStreamUtils.streamOut( pkgs );


        KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
        kbuilder.add( ResourceFactory.newByteArrayResource( spkgs ), ResourceType.PKG );

View Full Code Here

            
        }
    }
    
    private StatefulSession getExceptionSession() throws Exception {
        final PackageBuilder builder = new PackageBuilder();
        builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "test_ConsequenceException.drl" ) ) );
        
        if ( builder.hasErrors() ) {
            throw new RuntimeException( builder.getErrors().toString() );
        }
        
        final Package pkg = builder.getPackage();


        RuleBase ruleBase = getRuleBase();
        ruleBase.addPackage( pkg );
        ruleBase    = SerializationHelper.serializeObject(ruleBase);
        return ruleBase.newStatefulSession();

View Full Code Here

        ruleBase    = SerializationHelper.serializeObject(ruleBase);
        return ruleBase.newStatefulSession();
    }


    private StatefulSession getSession() throws Exception {
        final PackageBuilder builder = new PackageBuilder();
        builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "literal_rule_test.drl" ) ) );
        final Package pkg = builder.getPackage();


        RuleBase ruleBase = getRuleBase();
        ruleBase.addPackage( pkg );
        ruleBase    = SerializationHelper.serializeObject(ruleBase);
        StatefulSession session = ruleBase.newStatefulSession();

View Full Code Here

     */
    @Test
    @Ignore
    public void testStatefulSessionsCreation() throws Exception {


        final PackageBuilder builder = new PackageBuilder();
        builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "test_OutOfMemoryError.drl" ) ) );
        final Package pkg = builder.getPackage();


        RuleBase ruleBase = getRuleBase();
        ruleBase.addPackage( pkg );
        ruleBase = SerializationHelper.serializeObject(ruleBase);

View Full Code Here

    }


    @Test
    @Ignore
    public void testAgendaLoop() throws Exception {
        final PackageBuilder builder = new PackageBuilder();
        builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "test_OutOfMemory.drl" ) ) );
        final Package pkg = builder.getPackage();


        RuleBase ruleBase = getRuleBase();
        ruleBase.addPackage( pkg );
        ruleBase = SerializationHelper.serializeObject(ruleBase);
        final WorkingMemory workingMemory = ruleBase.newStatefulSession();

View Full Code Here

        assertEquals( 0, ksession.getChannels().size() );
        assertNull( ksession.getChannels().get( "x" ) );
    }


    private StatelessSession getSession() throws Exception {
        final PackageBuilder builder = new PackageBuilder();
        builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "literal_rule_test.drl" ) ) );
        final Package pkg = builder.getPackage();


        RuleBase ruleBase = getRuleBase();
        ruleBase.addPackage( pkg );
        ruleBase    = SerializationHelper.serializeObject(ruleBase);
        StatelessSession session = ruleBase.newStatelessSession();

View Full Code Here

        return SerializationHelper.serializeObject(ruleBase);
    }


    @Test @Ignore
    public void testLotsOfStateless() throws Exception {
        final PackageBuilder builder = new PackageBuilder();
        builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "thread_class_test.drl" ) ) );
        assertFalse(builder.hasErrors());


        
        


        final RuleBase rb  = getRuleBase( builder.getPackage() );


        int numThreads = 100;
        Thread[] ts = new Thread[numThreads];

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of org.drools.compiler.compiler.PackageBuilder

org.drools.compiler.builder.impl.KnowledgeBuilderFactoryServiceImpl

org.drools.compiler.CommonTestMethodBase

org.drools.compiler.compiler.xml.XmlPackageReader

org.drools.compiler.integrationtests.ConsequenceOffsetTest

org.drools.compiler.integrationtests.DynamicRulesTest

org.drools.compiler.integrationtests.ExecutionFlowControlTest

org.drools.compiler.integrationtests.FirstOrderLogicTest

org.drools.compiler.integrationtests.KnowledgeBuilderTest

org.drools.compiler.integrationtests.LargeRuleBase

org.drools.compiler.integrationtests.LargeRuleBaseSerializationTest

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.