Alternatively, have you take a look at the drools-camel-server-example? http://docs.jboss.org/drools/release/5.4.0.CR1/droolsjbpm-integration-docs/html_single/index.html#d0e666
Op 30-04-12 10:13, abhinavgupta schreef: > Hi, > > I am new to the Drools , i wanted to expose rules as a webservice using > Axis2. > > what i have done is that > 1. I have created a drools Project (working fine on eclispe) export all > files in jar > 2. Placed the jar file in C:\Program Files\Apache Software Foundation\Tomcat > 7.0\webapps\axis2\WEB-INF\lib directory > 3. Created a new Dynamic java project with axis2 facet.created a class with > > > ** > > package in.abhi.ws; > > > import java.math.BigDecimal; > > import org.drools.KnowledgeBase; > import org.drools.KnowledgeBaseFactory; > import org.drools.builder.KnowledgeBuilder; > import org.drools.builder.KnowledgeBuilderError; > import org.drools.builder.KnowledgeBuilderErrors; > import org.drools.builder.KnowledgeBuilderFactory; > import org.drools.builder.ResourceType; > import org.drools.io.ResourceFactory; > import org.drools.runtime.StatefulKnowledgeSession; > > > import com.sample.SaleItem; > > > public class Test { > > private static KnowledgeBase readKnowledgeBase() throws Exception { > > KnowledgeBuilder kbuilder = KnowledgeBuilderFactory > .newKnowledgeBuilder(); > > kbuilder.add(ResourceFactory.newClassPathResource("KanasSalesTax.drl"), > ResourceType.DRL); > > KnowledgeBuilderErrors errors = kbuilder.getErrors(); > if (errors.size()> 0) { > for (KnowledgeBuilderError error : errors) { > System.err.println(error); > } > throw new IllegalArgumentException("Could not parse > knowledge."); > } > KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase(); > kbase.addKnowledgePackages(kbuilder.getKnowledgePackages()); > return kbase; > } > > > > public BigDecimal salesTax(String taxState, String typeItem) { > BigDecimal taxCal = null; > try { > // load up the knowledge base > KnowledgeBase kbase = readKnowledgeBase(); > StatefulKnowledgeSession ksession = kbase > .newStatefulKnowledgeSession(); > > // Non-prescription item > // Expect $1.89 for the tax > > SaleItem item1 = new SaleItem(); > > item1.setPurchaseState(taxState); > item1.setItemType(typeItem); > item1.setSalesPrice(new BigDecimal(29.95)); > ksession.insert(item1); > ksession.fireAllRules(); > > taxCal = item1.getSalesTax(); > > System.out.println(item1.getPurchaseState().toString() > + " " > + item1.getItemType().toString() + ": " > + item1.getSalesTax().toString()); > } catch (Throwable t) { > t.printStackTrace(); > } > return taxCal; > } > } > > > ** > 4. Then created a bottom up java bean webservice of it using the same above > class. > 5. Wsdl is generated > > > i am getting the error response on eclispe console while testing by soap-ui > > ********** > > > java.lang.NullPointerException > at > org.drools.util.CompositeClassLoader.getResourceAsStream(CompositeClassLoader.java:122) > at > org.drools.commons.jci.compilers.EclipseJavaCompiler$2.findType(EclipseJavaCompiler.java:234) > at > org.drools.commons.jci.compilers.EclipseJavaCompiler$2.findType(EclipseJavaCompiler.java:215) > at > org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.createPackage(LookupEnvironment.java:748) > at > org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.buildTypeBindings(CompilationUnitScope.java:87) > at > org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.buildTypeBindings(LookupEnvironment.java:167) > at > org.eclipse.jdt.internal.compiler.Compiler.internalBeginToCompile(Compiler.java:721) > at > org.eclipse.jdt.internal.compiler.Compiler.beginToCompile(Compiler.java:381) > at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:426) > at > org.drools.commons.jci.compilers.EclipseJavaCompiler.compile(EclipseJavaCompiler.java:358) > at > org.drools.commons.jci.compilers.AbstractJavaCompiler.compile(AbstractJavaCompiler.java:49) > at > org.drools.rule.builder.dialect.java.JavaDialect.compileAll(JavaDialect.java:369) > at > org.drools.compiler.DialectCompiletimeRegistry.compileAll(DialectCompiletimeRegistry.java:53) > at > org.drools.compiler.PackageRegistry.compileAll(PackageRegistry.java:71) > at > org.drools.compiler.PackageBuilder.compileAll(PackageBuilder.java:869) > at > org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:826) > at > org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:404) > at > org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:586) > at > org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:37) > at in.abhi.ws.Test.readKnowledgeBase(Test.java:31) > at in.abhi.ws.Test.salesTax(Test.java:55) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) > at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) > at java.lang.reflect.Method.invoke(Unknown Source) > at > org.apache.axis2.rpc.receivers.RPCUtil.invokeServiceClass(RPCUtil.java:212) > at > org.apache.axis2.rpc.receivers.RPCMessageReceiver.invokeBusinessLogic(RPCMessageReceiver.java:117) > at > org.apache.axis2.receivers.AbstractInOutMessageReceiver.invokeBusinessLogic(AbstractInOutMessageReceiver.java:40) > at > org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:110) > at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:181) > at > org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:172) > at > org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:146) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:641) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169) > at > org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) > at > org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927) > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) > at > org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) > at > org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987) > at > org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579) > at > org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307) > at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) > at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) > at java.lang.Thread.run(Unknown Source) > java.lang.NullPointerException > at > org.drools.util.CompositeClassLoader.getResourceAsStream(CompositeClassLoader.java:122) > at > org.drools.commons.jci.compilers.EclipseJavaCompiler$2.findType(EclipseJavaCompiler.java:234) > at > org.drools.commons.jci.compilers.EclipseJavaCompiler$2.findType(EclipseJavaCompiler.java:215) > at > org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.createPackage(LookupEnvironment.java:748) > at > org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.buildTypeBindings(CompilationUnitScope.java:87) > at > org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.buildTypeBindings(LookupEnvironment.java:167) > at > org.eclipse.jdt.internal.compiler.Compiler.internalBeginToCompile(Compiler.java:721) > at > org.eclipse.jdt.internal.compiler.Compiler.beginToCompile(Compiler.java:381) > at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:426) > at > org.drools.commons.jci.compilers.EclipseJavaCompiler.compile(EclipseJavaCompiler.java:358) > at > org.drools.commons.jci.compilers.AbstractJavaCompiler.compile(AbstractJavaCompiler.java:49) > at > org.drools.rule.builder.dialect.java.JavaDialect.compileAll(JavaDialect.java:369) > at > org.drools.compiler.DialectCompiletimeRegistry.compileAll(DialectCompiletimeRegistry.java:53) > at > org.drools.compiler.PackageRegistry.compileAll(PackageRegistry.java:71) > at > org.drools.compiler.PackageBuilder.compileAll(PackageBuilder.java:869) > at > org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:826) > at > org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:404) > at > org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:586) > at > org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:37) > at in.abhi.ws.Test.readKnowledgeBase(Test.java:31) > at in.abhi.ws.Test.salesTax(Test.java:55) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) > at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) > at java.lang.reflect.Method.invoke(Unknown Source) > at > org.apache.axis2.rpc.receivers.RPCUtil.invokeServiceClass(RPCUtil.java:212) > at > org.apache.axis2.rpc.receivers.RPCMessageReceiver.invokeBusinessLogic(RPCMessageReceiver.java:117) > at > org.apache.axis2.receivers.AbstractInOutMessageReceiver.invokeBusinessLogic(AbstractInOutMessageReceiver.java:40) > at > org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:110) > at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:181) > at > org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:172) > at > org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:146) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:641) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169) > at > org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) > at > org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927) > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) > at > org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) > at > org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987) > at > org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579) > at > org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307) > at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) > at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) > at java.lang.Thread.run(Unknown Source) > **************** > > Please let me know how to make it work > > -- > View this message in context: > http://drools.46999.n3.nabble.com/Drools-as-a-Webservice-tp3950198.html > Sent from the Drools: User forum mailing list archive at Nabble.com. > _______________________________________________ > rules-users mailing list > rules-users@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > -- With kind regards, Geoffrey De Smet _______________________________________________ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users