<div><br></div> Hi Paul,<div><br></div><div> Your analysis is correct. The problem is that these configurations in MVEL are made using static properties and so they affect all uses of MVEL in a single classloading hierarchy. Unfortunately, I don't think there is anything you can do right now, other than open a JIRA in MVEL to help convince Mike to make all configurations non-static in MVEL:</div>
<div><br></div><div><a href="http://jira.codehaus.org/browse/MVEL">http://jira.codehaus.org/browse/MVEL</a></div><div><br></div><div> Edson</div><div> <br><div class="gmail_quote">2010/7/21 Paul Edwards <span dir="ltr"><<a href="mailto:Paul.Edwards@hyro.com">Paul.Edwards@hyro.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Hi guys,<br>
<br>
I have an issue which involves smooks, drools and mvel.<br>
<br>
Quick explanation, the unit test is just a smooks run. Nothing complicated. The test passes happily. It contains an expression that involves an MVEL "IF" statement.<br>
<br>
Now if I add a drools startup (I'm not using drools in the test, I'm just initialising it), the unit test now fails on the "IF" statement. The exception received is:<br>
<br>
org.milyn.cdr.SmooksConfigurationException: Error invoking @Initialize method 'initialize' on class 'org.milyn.javabean.BeanInstancePopulator'.<br>
at org.milyn.cdr.annotation.Configurator.invoke(Configurator.java:457)<br>
at org.milyn.cdr.annotation.Configurator.initialise(Configurator.java:439)<br>
at org.milyn.cdr.annotation.Configurator.configure(Configurator.java:91)<br>
at org.milyn.cdr.annotation.Configurator.configure(Configurator.java:66)<br>
at org.milyn.delivery.JavaContentHandlerFactory.create(JavaContentHandlerFactory.java:63)<br>
at org.milyn.delivery.ContentDeliveryConfigBuilder$ContentHandlerExtractionStrategy.addCDU(ContentDeliveryConfigBuilder.java:623)<br>
at org.milyn.delivery.ContentDeliveryConfigBuilder$ContentHandlerExtractionStrategy.applyCDUStrategy(ContentDeliveryConfigBuilder.java:548)<br>
at org.milyn.delivery.ContentDeliveryConfigBuilder$ContentHandlerExtractionStrategy.applyStrategy(ContentDeliveryConfigBuilder.java:536)<br>
at org.milyn.delivery.ContentDeliveryConfigBuilder$SmooksResourceConfigurationTableIterator.iterate(ContentDeliveryConfigBuilder.java:711)<br>
at org.milyn.delivery.ContentDeliveryConfigBuilder$SmooksResourceConfigurationTableIterator.access$300(ContentDeliveryConfigBuilder.java:690)<br>
at org.milyn.delivery.ContentDeliveryConfigBuilder.extractContentHandlers(ContentDeliveryConfigBuilder.java:484)<br>
at org.milyn.delivery.ContentDeliveryConfigBuilder.load(ContentDeliveryConfigBuilder.java:349)<br>
at org.milyn.delivery.ContentDeliveryConfigBuilder.getConfig(ContentDeliveryConfigBuilder.java:146)<br>
at org.milyn.container.standalone.StandaloneExecutionContext.<init>(StandaloneExecutionContext.java:91)<br>
at org.milyn.container.standalone.StandaloneExecutionContext.<init>(StandaloneExecutionContext.java:65)<br>
at org.milyn.Smooks.createExecutionContext(Smooks.java:383)<br>
at org.milyn.Smooks.createExecutionContext(Smooks.java:346)<br>
at com.hyro.telstrapoc.smooks.SmooksTransformTest.runSmooksTransform(SmooksTransformTest.java:215)<br>
at com.hyro.telstrapoc.smooks.SmooksTransformTest.testSmooks(SmooksTransformTest.java:139)<br>
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)<br>
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)<br>
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)<br>
at java.lang.reflect.Method.invoke(Method.java:597)<br>
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)<br>
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)<br>
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)<br>
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)<br>
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)<br>
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)<br>
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:73)<br>
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:46)<br>
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)<br>
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41)<br>
at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173)<br>
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)<br>
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)<br>
at org.junit.runners.ParentRunner.run(ParentRunner.java:220)<br>
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)<br>
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)<br>
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)<br>
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)<br>
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)<br>
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)<br>
Caused by: [Error: was expecting type: java.lang.Object; but found type: null]<br>
[Near : {... }<br>
els ....}]<br>
^<br>
[Line: 3, Column: 16]<br>
at org.mvel2.util.CompilerTools.expectType(CompilerTools.java:355)<br>
at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer._getAccessor(ReflectiveAccessorOptimizer.java:1052)<br>
at org.mvel2.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeCollection(ReflectiveAccessorOptimizer.java:1079)<br>
at org.mvel2.ast.InlineCollectionNode.<init>(InlineCollectionNode.java:50)<br>
at org.mvel2.compiler.AbstractParser.nextToken(AbstractParser.java:1173)<br>
at org.mvel2.compiler.ExpressionCompiler._compile(ExpressionCompiler.java:118)<br>
at org.mvel2.compiler.ExpressionCompiler.compile(ExpressionCompiler.java:65)<br>
at org.mvel2.MVEL.compileExpression(MVEL.java:886)<br>
at org.mvel2.MVEL.compileExpression(MVEL.java:891)<br>
at org.mvel2.MVEL.compileExpression(MVEL.java:797)<br>
at org.milyn.expression.MVELExpressionEvaluator.setExpression(MVELExpressionEvaluator.java:55)<br>
at org.milyn.javabean.BeanInstancePopulator.initialize(BeanInstancePopulator.java:235)<br>
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)<br>
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)<br>
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)<br>
at java.lang.reflect.Method.invoke(Method.java:597)<br>
at org.milyn.cdr.annotation.Configurator.invoke(Configurator.java:453)<br>
... 42 more<br>
<br>
<br>
If I remove the 3 lines initialising drools, it all passes again. I suspect that the MVEL engine is a singleton, and both drools and smooks are using the same instance. I believe drools is setting MVEL to disallow "IF" statements on the RHS of a rule. (see: <a href="http://drools-java-rules-engine.46999.n3.nabble.com/Trivial-rule-with-condition-in-RHS-won-t-compile-help-please-td67458.html" target="_blank">http://drools-java-rules-engine.46999.n3.nabble.com/Trivial-rule-with-condition-in-RHS-won-t-compile-help-please-td67458.html</a>) I don't understand why MVEL thinks that my smooks expression is a RHS of a rule....<br>
<br>
<br>
Heres the unit test:<br>
@Test<br>
public void testSmooks2() throws Exception {<br>
<br>
String input =<br>
"<ns5:user partyAdminRoles=\"\" lastName=\"Edwards\" firstName=\"Paul\" primary=\"false\" userID=\"pedwards\" otpTokenRemainingUses=\"0\" registrationCodeRemainingUses=\"0\" enabled=\"true\" customIntAttr1=\"0\" xmlns:ns2=\"urn:oasis:names:tc:SPML:2:0:reference\" xmlns=\"urn:oasis:names:tc:SPML:2:0\" xmlns:ns4=\"urn:oasis:names:tc:SPML:2:0:password\" xmlns:ns3=\"urn:oasis:names:tc:SPML:2:0:search\" xmlns:ns5=\"<a href="http://hyro.com/da/objectmodel\" target="_blank">http://hyro.com/da/objectmodel\</a>" xmlns:ns6=\"<a href="http://www.sifinfo.org/au/infrastructure/2.x\" target="_blank">http://www.sifinfo.org/au/infrastructure/2.x\</a>" xmlns:ns7=\"urn:oasis:names:tc:SPML:2:0:batch\">\n" +<br>
" <ns5:emailAddresses emailAddress=\"<a href="mailto:pedwards@frazzle.co.nz">pedwards@frazzle.co.nz</a>\" primary=\"true\" type=\"Personal\" modificationMode=\"0\"/>\n" +<br>
" <ns5:emailAddresses emailAddress=\"<a href="mailto:grumpy@frazzle.co.nz">grumpy@frazzle.co.nz</a>\" primary=\"false\" type=\"Personal\" modificationMode=\"0\"/>\n" +<br>
" <ns5:authzRoleSubscriptions status=\"Active\" primary=\"false\" singlePasswordOptOut=\"false\" reprovision=\"false\" customBoolAttr5=\"false\" customBoolAttr4=\"false\" customBoolAttr3=\"false\" customBoolAttr2=\"false\" customBoolAttr1=\"false\" customIntAttr5=\"0\" customIntAttr4=\"0\" customIntAttr3=\"0\" customIntAttr2=\"0\" customIntAttr1=\"0\">\n" +<br>
" <ns5:role roleName=\"Account\">\n" +<br>
" <ns5:entitlement entitlementID=\"Open LDAP Account\" type=\"Account\"/>\n" +<br>
" </ns5:role>\n" +<br>
" </ns5:authzRoleSubscriptions>\n" +<br>
" <ns5:auxEntities/>\n" +<br>
"</ns5:user>\n";<br>
<br>
UserType inUser = null;<br>
Unmarshaller unmarshaller = null;<br>
<br>
try {<br>
log.debug("Unmarshalling: " + input);<br>
unmarshaller = (Unmarshaller) SpmlConstants.unmarshallerPool.borrowObject();<br>
inUser = ((JAXBElement<UserType>) unmarshaller.unmarshal(new StringReader(input))).getValue();<br>
} catch (JAXBException e) {<br>
log.error("Exception while trying to unmarshall input daSpmlString: " + e.getMessage());<br>
e.printStackTrace();<br>
throw e;<br>
} catch (Exception e) {<br>
log.error("Exception while trying to unmarshall input daSpmlString: " + e.getMessage());<br>
e.printStackTrace();<br>
throw e;<br>
} finally {<br>
SpmlConstants.unmarshallerPool.returnObject(unmarshaller);<br>
}<br>
<br>
log.debug("Unmarshalled: " + inUser.getUserID());<br>
<br>
Properties parsed = runSmooksTransform(inUser);<br>
assertNotNull(parsed);<br>
<br>
<br>
for(Iterator<Object> i = parsed.keySet().iterator(); i.hasNext();) {<br>
Object key = i.next();<br>
Object value = parsed.get(key);<br>
System.out.println("Key: " + key + " value: " + value);<br>
}<br>
<br>
}<br>
<br>
Heres the smooks file:<br>
<br>
<?xml version="1.0"?><br>
<smooks-resource-list xmlns="<a href="http://www.milyn.org/xsd/smooks-1.1.xsd" target="_blank">http://www.milyn.org/xsd/smooks-1.1.xsd</a>"<br>
xmlns:core="<a href="http://www.milyn.org/xsd/smooks/smooks-core-1.3.xsd" target="_blank">http://www.milyn.org/xsd/smooks/smooks-core-1.3.xsd</a>"<br>
xmlns:jb="<a href="http://www.milyn.org/xsd/smooks/javabean-1.3.xsd" target="_blank">http://www.milyn.org/xsd/smooks/javabean-1.3.xsd</a>"><br>
<br>
<!-- NOTE NOTE NOTE --><br>
<!-- This is purely to map user or person props to the LDAP name. Anything that is handled --><br>
<!-- explicitly (like firstname or lastname) does not get mapped --><br>
<br>
<jb:bean beanId="UserOrPerson" class="java.util.Properties" createOnElement="com.hyro.spmlservice.generated.objectmodel.PersonType"><br>
<br>
<jb:value property="employeeNumber" decoder="String" data="personID" /><br>
<jb:value property="mobile" decoder="String" data="mobileTel" /><br>
<jb:value property="facsimileTelephoneNumber" decoder="String" data="workFax" /><br>
<jb:value property="telephoneNumber" decoder="String" data="workTel" /><br>
<jb:value property="description" decoder="String" data="title" /><br>
<jb:value property="l" decoder="String" data="customAttr27" /><br>
<jb:value property="physicalDeliveryOfficeName" decoder="String" data="customAttr8" /><br>
<jb:value property="postalCode" decoder="String" data="customAttr7" /><br>
<br>
</jb:bean><br>
<br>
<jb:bean beanId="UserOrPerson" class="java.util.Properties" createOnElement="com.hyro.spmlservice.generated.objectmodel.UserType"><br>
<jb:value property="firstName" decoder="String" data="firstName" /><br>
<jb:value property="lastName" decoder="String" data="lastName" /><br>
<jb:value property="user" decoder="String" data="userID" /><br>
<br>
<jb:value property="displayName" decoder="String" data="customAttr4" /><br>
<jb:value property="postalCode" decoder="String" data="customAttr2" /><br>
<br>
<jb:expression property="mail" execOnElement="emailAddresses"><br>
<br>
if(1 == 2) {<br>
return emailAddresses[0].emailAddress;<br>
}<br>
else {<br>
return "NOT FOUND";<br>
}<br>
</jb:expression><br>
<br>
<br>
</jb:bean><br>
<br>
<jb:bean beanId="emailAddresses" class="java.util.ArrayList" createOnElement="emailAddresses"><br>
<jb:wiring beanIdRef="emailAddressType" /><br>
</jb:bean><br>
<br>
<jb:bean beanId="emailAddressType" class="com.hyro.spmlservice.generated.objectmodel.EmailAddressType" createOnElement="com.hyro.spmlservice.generated.objectmodel.EmailAddressType"><br>
<jb:value property="modificationMode" decoder="Short" data="modificationMode" /><br>
<jb:value property="emailAddress" decoder="String" data="emailAddress" /><br>
<jb:value property="type" decoder="String" data="type" /><br>
<jb:value property="primary" decoder="Boolean" data="primary" /><br>
</jb:bean><br>
<br>
<br>
</smooks-resource-list><br>
<br>
<br>
Any Ideas? I've wasted 3 days getting to this point....<br>
<font color="#888888">--<br>
Paul Edwards<br>
<br>
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</font></blockquote></div><br><br clear="all"><br>-- <br> Edson Tirelli<br> JBoss Drools Core Development<br> JBoss by Red Hat @ <a href="http://www.jboss.com">www.jboss.com</a><br>
</div>