Examples of org.drools.compiler.PackageBuilder

org.drools.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.

        builder.getPackage();
    }


    public void testLoadingRuleFlowInPackage2() throws Exception {
        // only adding ruleflow
        final PackageBuilder builder = new PackageBuilder();
        builder.addRuleFlow( new InputStreamReader( getClass().getResourceAsStream( "ruleflow.rfm" ) ) );
        builder.getPackage();
    }

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        builder.getPackage();
    }


    public void testLoadingRuleFlowInPackage3() throws Exception {
        // only adding ruleflow without any generated rules
        final PackageBuilder builder = new PackageBuilder();
        builder.addRuleFlow( new InputStreamReader( getClass().getResourceAsStream( "empty_ruleflow.rfm" ) ) );
        builder.getPackage();
    }

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        builder.getPackage();
    }


    public void FIXME_testLoadingRuleFlowInPackage4() throws Exception {
        // adding ruleflows of different package
        final PackageBuilder builder = new PackageBuilder();
        builder.addRuleFlow( new InputStreamReader( getClass().getResourceAsStream( "empty_ruleflow.rfm" ) ) );
        try {
            builder.addRuleFlow( new InputStreamReader( getClass().getResourceAsStream( "ruleflow.rfm" ) ) );
            throw new Exception( "An exception should have been thrown." );
        } catch ( PackageMergeException e ) {
            // do nothing
        }
    }

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        }
    }


    public void FIXME_testLoadingRuleFlowInPackage5() throws Exception {
        // adding ruleflow of different package than rules
        final PackageBuilder builder = new PackageBuilder();
        builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "ruleflow.drl" ) ) );
        try {
            builder.addRuleFlow( new InputStreamReader( getClass().getResourceAsStream( "empty_ruleflow.rfm" ) ) );
            throw new Exception( "An exception should have been thrown." );
        } catch ( PackageMergeException e ) {
            // do nothing
        }
    }

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        }
    }


    public void FIXME_testLoadingRuleFlowInPackage6() throws Exception {
        // adding rules of different package than ruleflow
        final PackageBuilder builder = new PackageBuilder();
        builder.addRuleFlow( new InputStreamReader( getClass().getResourceAsStream( "empty_ruleflow.rfm" ) ) );
        try {
            builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "ruleflow.drl" ) ) );
            throw new Exception( "An exception should have been thrown." );
        } catch ( PackageMergeException e ) {
            // do nothing
        }
    }

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            // do nothing
        }
    }


    public void testRuleFlowActionDialects() throws Exception {
        final PackageBuilder builder = new PackageBuilder();
        builder.addRuleFlow( new InputStreamReader( getClass().getResourceAsStream( "test_ActionDialects.rfm" ) ) );


        RuleBase ruleBase = RuleBaseFactory.newRuleBase();
        ruleBase.addPackage( builder.getPackage() );
        ruleBase = SerializationHelper.serializeObject( ruleBase );


        StatefulSession session = ruleBase.newStatefulSession();
        List<String> list = new ArrayList<String>();
        session.setGlobal( "list",

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                      list.get( 1 ) );
    }


    public void testLoadingRuleFlowInPackage7() throws Exception {
        // loading a ruleflow with errors
        final PackageBuilder builder = new PackageBuilder();
        builder.addRuleFlow( new InputStreamReader( getClass().getResourceAsStream( "error_ruleflow.rfm" ) ) );
        assertEquals( 1,
                      builder.getErrors().getErrors().length );
    }

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import org.jbpm.workflow.instance.node.DynamicUtils;


public class ProcessDynamicNodeTest extends JbpmTestCase {
    
    public void TODOtestDynamicActions() {
        PackageBuilder builder = new PackageBuilder();
        Reader source = new StringReader(
            "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
            "<process xmlns=\"http://drools.org/drools-5.0/process\"\n" +
            "         xmlns:xs=\"http://www.w3.org/2001/XMLSchema-instance\"\n" +
            "         xs:schemaLocation=\"http://drools.org/drools-5.0/process drools-processes-5.0.xsd\"\n" +
            "         type=\"RuleFlow\" name=\"ruleflow\" id=\"org.drools.dynamic\" package-name=\"org.drools\" >\n" +
            "\n" +
            "  <header>\n" +
            "    <globals>\n" +
            "      <global identifier=\"list\" type=\"java.util.List\" />\n" +
            "    </globals>\n" +
            "  </header>\n" +
            "\n" +
            "  <nodes>\n" +
            "    <start id=\"1\" name=\"Start\" />\n" + 
            "    <dynamic id=\"2\" name=\"DynamicNode\" >\n" +
            "      <nodes>\n" +
            "        <actionNode id=\"1\" name=\"Action1\" >\n" +
            "          <action type=\"expression\" dialect=\"mvel\" >System.out.println(\"Action1\");\n" +
            "list.add(\"Action1\");</action>\n" +
            "        </actionNode>\n" +
            "        <actionNode id=\"2\" name=\"Action2\" >\n" +
            "          <action type=\"expression\" dialect=\"mvel\" >System.out.println(\"Action2\");\n" +
            "list.add(\"Action2\");</action>\n" +
            "        </actionNode>\n" +
            "        <actionNode id=\"3\" name=\"Action3\" >\n" +
            "          <action type=\"expression\" dialect=\"mvel\" >System.out.println(\"Action3\");\n" +
            "list.add(\"Action3\");</action>\n" +
            "        </actionNode>\n" +
            "      </nodes>\n" +
            "      <connections>\n" +
            "        <connection from=\"1\" to=\"3\" />\n" +
            "      </connections>\n" +
            "      <in-ports/>\n" +
            "      <out-ports/>\n" +
            "    </dynamic>\n" +
            "    <actionNode id=\"3\" name=\"Action4\" >\n" +
            "      <action type=\"expression\" dialect=\"mvel\" >System.out.println(\"Action4\");\n" +
            "list.add(\"Action4\");</action>\n" +
            "    </actionNode>\n" +
            "    <end id=\"4\" name=\"End\" />\n" +
            "  </nodes>\n" +
            "\n" +
            "  <connections>\n" +
            "    <connection from=\"1\" to=\"2\" />\n" +
            "    <connection from=\"2\" to=\"3\" />\n" +
            "    <connection from=\"3\" to=\"4\" />\n" +
            "  </connections>\n" +
            "</process>");
        builder.addRuleFlow(source);
        Package pkg = builder.getPackage();
        for (DroolsError error: builder.getErrors().getErrors()) {
          System.err.println(error);
        }
        RuleBase ruleBase = RuleBaseFactory.newRuleBase();
        ruleBase.addPackage( pkg );
        WorkingMemory workingMemory = ruleBase.newStatefulSession();

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        assertEquals(ProcessInstance.STATE_COMPLETED, processInstance.getState());
        assertEquals(1, list.size());
    }
    
    public void testSplitWithMVELVariableConstraint() {
        PackageBuilder builder = new PackageBuilder();
        Reader source = new StringReader(
            "<process xmlns=\"http://drools.org/drools-5.0/process\"" +
            "         xmlns:xs=\"http://www.w3.org/2001/XMLSchema-instance\"" +
            "         xs:schemaLocation=\"http://drools.org/drools-5.0/process drools-processes-5.0.xsd\"" +
            "         type=\"RuleFlow\" name=\"ruleflow\" id=\"org.jbpm.process-split\" package-name=\"org.jbpm\" >" +
            "" +
            "  <header>" +
            "    <imports>" +
            "      <import name=\"org.jbpm.Person\" />" +
            "      <import name=\"org.jbpm.integrationtests.ProcessSplitTest.ProcessUtils\" />" +
            "    </imports>" +
            "    <globals>" +
            "      <global identifier=\"list\" type=\"java.util.List\" />" +
            "    </globals>" +
            "    <variables>\n" +
            "      <variable name=\"name\" >\n" +
            "        <type name=\"org.drools.process.core.datatype.impl.type.StringDataType\" />\n" +
            "      </variable>\n" +
            "    </variables>\n" +
            "  </header>" +
            "" +
            "  <nodes>" +
            "    <actionNode id=\"2\" name=\"Action\" >" +
            "        <action type=\"expression\" dialect=\"mvel\" >insert(context.getProcessInstance());</action>" +
            "    </actionNode>" +
            "    <split id=\"4\" name=\"Split\" type=\"2\" >" +
            "      <constraints>" +
            "        <constraint toNodeId=\"8\" toType=\"DROOLS_DEFAULT\" priority=\"2\" type=\"code\" dialect=\"mvel\" >return true;</constraint>" +
            "        <constraint toNodeId=\"6\" toType=\"DROOLS_DEFAULT\" priority=\"1\" type=\"code\" dialect=\"mvel\" >return name != null &amp;&amp; name.length > 0;</constraint>" +
            "      </constraints>" +
            "    </split>" +
            "    <end id=\"8\" name=\"End\" />" +
            "    <actionNode id=\"6\" name=\"Action\" >" +
            "        <action type=\"expression\" dialect=\"mvel\" >list.add(context.getProcessInstance().getId());</action>" +
            "    </actionNode>" +
            "    <start id=\"1\" name=\"Start\" />" +
            "    <end id=\"3\" name=\"End\" />" +
            "  </nodes>" +
            "  <connections>" +
            "    <connection from=\"1\" to=\"2\" />" +
            "    <connection from=\"2\" to=\"4\" />" +
            "    <connection from=\"4\" to=\"8\" />" +
            "    <connection from=\"4\" to=\"6\" />" +
            "    <connection from=\"6\" to=\"3\" />" +
            "  </connections>" +
            "" +
            "</process>");
        builder.addRuleFlow(source);
        Package pkg = builder.getPackage();
        RuleBase ruleBase = RuleBaseFactory.newRuleBase();
        ruleBase.addPackage( pkg );
        WorkingMemory workingMemory = ruleBase.newStatefulSession();
        List<Long> list = new ArrayList<Long>();
        workingMemory.setGlobal("list", list);

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        assertEquals(ProcessInstance.STATE_COMPLETED, processInstance.getState());
        assertEquals(1, list.size());
    }
    
    public void testSplitWithJavaVariableConstraint() {
        PackageBuilder builder = new PackageBuilder();
        Reader source = new StringReader(
            "<process xmlns=\"http://drools.org/drools-5.0/process\"" +
            "         xmlns:xs=\"http://www.w3.org/2001/XMLSchema-instance\"" +
            "         xs:schemaLocation=\"http://drools.org/drools-5.0/process drools-processes-5.0.xsd\"" +
            "         type=\"RuleFlow\" name=\"ruleflow\" id=\"org.jbpm.process-split\" package-name=\"org.jbpm\" >" +
            "" +
            "  <header>" +
            "    <imports>" +
            "      <import name=\"org.jbpm.Person\" />" +
            "      <import name=\"org.jbpm.integrationtests.ProcessSplitTest.ProcessUtils\" />" +
            "    </imports>" +
            "    <globals>" +
            "      <global identifier=\"list\" type=\"java.util.List\" />" +
            "    </globals>" +
            "    <variables>\n" +
            "      <variable name=\"name\" >\n" +
            "        <type name=\"org.drools.process.core.datatype.impl.type.StringDataType\" />\n" +
            "      </variable>\n" +
            "    </variables>\n" +
            "  </header>" +
            "" +
            "  <nodes>" +
            "    <actionNode id=\"2\" name=\"Action\" >" +
            "        <action type=\"expression\" dialect=\"mvel\" >insert(context.getProcessInstance());</action>" +
            "    </actionNode>" +
            "    <split id=\"4\" name=\"Split\" type=\"2\" >" +
            "      <constraints>" +
            "        <constraint toNodeId=\"8\" toType=\"DROOLS_DEFAULT\" priority=\"2\" type=\"code\" dialect=\"java\" >return true;</constraint>" +
            "        <constraint toNodeId=\"6\" toType=\"DROOLS_DEFAULT\" priority=\"1\" type=\"code\" dialect=\"java\" >return name != null &amp;&amp; name.length() > 0;</constraint>" +
            "      </constraints>" +
            "    </split>" +
            "    <end id=\"8\" name=\"End\" />" +
            "    <actionNode id=\"6\" name=\"Action\" >" +
            "        <action type=\"expression\" dialect=\"mvel\" >list.add(context.getProcessInstance().getId());</action>" +
            "    </actionNode>" +
            "    <start id=\"1\" name=\"Start\" />" +
            "    <end id=\"3\" name=\"End\" />" +
            "  </nodes>" +
            "  <connections>" +
            "    <connection from=\"1\" to=\"2\" />" +
            "    <connection from=\"2\" to=\"4\" />" +
            "    <connection from=\"4\" to=\"8\" />" +
            "    <connection from=\"4\" to=\"6\" />" +
            "    <connection from=\"6\" to=\"3\" />" +
            "  </connections>" +
            "" +
            "</process>");
        builder.addRuleFlow(source);
        Package pkg = builder.getPackage();
        RuleBase ruleBase = RuleBaseFactory.newRuleBase();
        ruleBase.addPackage( pkg );
        WorkingMemory workingMemory = ruleBase.newStatefulSession();
        List<Long> list = new ArrayList<Long>();
        workingMemory.setGlobal("list", list);

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