[JBoss JIRA] Created: (JBRULES-2381) NPE during usage after serialize/deserialize
by Justin Waugh (JIRA)
NPE during usage after serialize/deserialize
--------------------------------------------
Key: JBRULES-2381
URL: https://jira.jboss.org/jira/browse/JBRULES-2381
Project: Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Components: drools-core
Affects Versions: 5.0.1.FINAL
Environment: Windows XP / Server 2003, JDK 1.6
Reporter: Justin Waugh
Assignee: Mark Proctor
Attachments: test.zip
In our application we are often removing and adding new rules. We also have a requirement to serialize state so that we can continue across restarts. We've seen a few problems related to the state of the knowledgebase after serializing/deserializing related to removing rules. Both are NPE's, and from debugging into Drools, both seem to be a case of a deserialized transient value not being wired up correctly. In one case the reader field of ClassFieldReader is not wired, so the InternalReadAccessor is null, and in the other the expression field of EvalCondition is left null. I have not been able to reproduce in a simple test case the first problem, though it is easily reproduceable in our live system, but I was able to reproduce the second, and I've attached a test case to demonstrate it. Both only happen with the combination of removing rules and serialization/deserialization. If the rules are never removed, the problems do not exhibit themselves. Here are the 2 stack traces:
java.lang.NullPointerException
at org.drools.base.ClassFieldReader.getValueType(ClassFieldReader.java:96)
at org.drools.reteoo.CompositeObjectSinkAdapter.addObjectSink(CompositeObjectSinkAdapter.java:98)
at org.drools.reteoo.ObjectSource.addObjectSink(ObjectSource.java:143)
at org.drools.reteoo.AlphaNode.attach(AlphaNode.java:116)
at org.drools.reteoo.AlphaNode.attach(AlphaNode.java:120)
at org.drools.reteoo.builder.BuildUtils.attachNode(BuildUtils.java:160)
at org.drools.reteoo.builder.PatternBuilder.attachAlphaNodes(PatternBuilder.java:295)
at org.drools.reteoo.builder.PatternBuilder.attachPattern(PatternBuilder.java:117)
at org.drools.reteoo.builder.PatternBuilder.build(PatternBuilder.java:70)
at org.drools.reteoo.builder.GroupElementBuilder$AndBuilder.build(GroupElementBuilder.java:126)
at org.drools.reteoo.builder.GroupElementBuilder.build(GroupElementBuilder.java:73)
at org.drools.reteoo.builder.ReteooRuleBuilder.addSubRule(ReteooRuleBuilder.java:153)
at org.drools.reteoo.builder.ReteooRuleBuilder.addRule(ReteooRuleBuilder.java:126)
at org.drools.reteoo.ReteooBuilder.addRule(ReteooBuilder.java:118)
at org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:362)
at org.drools.common.AbstractRuleBase.addRule(AbstractRuleBase.java:618)
at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:662)
at org.drools.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:290)
at org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:488)
at org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:25)
java.lang.NullPointerException
at org.drools.rule.EvalCondition.createContext(EvalCondition.java:110)
at org.drools.reteoo.EvalConditionNode.createMemory(EvalConditionNode.java:231)
at org.drools.common.ConcurrentNodeMemories.createNodeMemory(ConcurrentNodeMemories.java:96)
at org.drools.common.ConcurrentNodeMemories.getNodeMemory(ConcurrentNodeMemories.java:75)
at org.drools.common.AbstractWorkingMemory.getNodeMemory(AbstractWorkingMemory.java:1534)
at org.drools.reteoo.EvalConditionNode.doRemove(EvalConditionNode.java:263)
at org.drools.common.BaseNode.remove(BaseNode.java:95)
at org.drools.reteoo.RuleTerminalNode.doRemove(RuleTerminalNode.java:360)
at org.drools.common.BaseNode.remove(BaseNode.java:95)
at org.drools.reteoo.ReteooBuilder.removeRule(ReteooBuilder.java:248)
at org.drools.reteoo.ReteooRuleBase.removeRule(ReteooRuleBase.java:366)
at org.drools.common.AbstractRuleBase.removeRule(AbstractRuleBase.java:712)
at org.drools.common.AbstractRuleBase.removePackage(AbstractRuleBase.java:640)
at org.drools.impl.KnowledgeBaseImpl.removeKnowledgePackage(KnowledgeBaseImpl.java:166)
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11 years, 6 months
[JBoss JIRA] Created: (JBRULES-2358) ClassNotFoundException when using "mvel" as a dialect
by stephane Brossier (JIRA)
ClassNotFoundException when using "mvel" as a dialect
-----------------------------------------------------
Key: JBRULES-2358
URL: https://jira.jboss.org/jira/browse/JBRULES-2358
Project: Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Affects Versions: 5.0.1.FINAL
Environment: OS: Macos X and Linux
JVM 1.6.0_15 from sun
Reporter: stephane Brossier
Assignee: Mark Proctor
I get a ClassNotFoundexception when using a very simple rule and test. The test dowloads a binary package from guvnor, containing one trivial rule. Then it creates a StatefulKnowledgeSession and insert 500 facts. The drl file uploaded on guvnor is:
--------------------------
package mytest.debug.rules
declare PerUserCount
num : long
profile : String
end
rule "Event"
dialect "java"
when
e: PerUserCount()
then
System.out.println("Possible spammer [p=" + e.getProfile() + "] : count = " + e.getNum());
end
----------------------------
When calling fireAll, i get an exception. Note that:
1) The exception does not show up right away-- it only comes after some of those facts got processed
2) If i change the dialect from default 'mvel" to "java" it works fine:
Exception in thread "main" java.lang.NoClassDefFoundError: mytest/debug/rules/PerUserCount
at ASMAccessorImpl_7377369041259611028980.getValue(Unknown Source)
at org.mvel2.optimizers.dynamic.DynamicGetAccessor.getValue(DynamicGetAccessor.java:66)
at org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:99)
at org.mvel2.ast.BinaryOperation.getReducedValueAccelerated(BinaryOperation.java:102)
at org.mvel2.ast.BinaryOperation.getReducedValueAccelerated(BinaryOperation.java:102)
at org.mvel2.ast.BinaryOperation.getReducedValueAccelerated(BinaryOperation.java:102)
at org.mvel2.compiler.ExecutableAccessor.getValue(ExecutableAccessor.java:41)
at ASMAccessorImpl_7157329411259611028970.getValue(Unknown Source)
at org.mvel2.optimizers.dynamic.DynamicGetAccessor.getValue(DynamicGetAccessor.java:66)
at org.mvel2.ast.ASTNode.getReducedValueAccelerated(ASTNode.java:99)
at org.mvel2.MVELRuntime.execute(MVELRuntime.java:85)
at org.mvel2.compiler.CompiledExpression.getValue(CompiledExpression.java:107)
at org.mvel2.MVEL.executeExpression(MVEL.java:978)
at org.drools.base.mvel.MVELConsequence.evaluate(MVELConsequence.java:87)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:934)
at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:885)
at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1086)
at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:660)
at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:627)
at org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:183)
at com.drools.debug.Test.runIteration(Test.java:132)
at com.drools.debug.Test.startTest(Test.java:73)
at com.drools.debug.Test.main(Test.java:196)
Caused by: java.lang.ClassNotFoundException: mytest.debug.rules.PerUserCount
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:319)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:330)
at java.lang.ClassLoader.loadClass(ClassLoader.java:254)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:402)
... 23 more
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11 years, 6 months
[JBoss JIRA] Created: (JBRULES-2423) "from" does not work correctly with events in STREAM mode
by Davide Sottara (JIRA)
"from" does not work correctly with events in STREAM mode
---------------------------------------------------------
Key: JBRULES-2423
URL: https://jira.jboss.org/jira/browse/JBRULES-2423
Project: Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Components: drools-core (fusion)
Affects Versions: 5.0.0.M1
Environment: Drools Fusion 5.0+ with engine in STREAM mode
Reporter: Davide Sottara
Assignee: Mark Proctor
Priority: Critical
In the simple test case below, Message is an instantaneous event (i.e. duration = 0) with a list of destinations.
--------------------------------------------------------------------------------------------------------------------------------------
declare Message
@role( event )
@timestamp(start)
@duration(duration)
end
rule "Hello World"
when
m : Message( status == Message.HELLO, $myMessage : message, $destinations : dest)
$s : String() from $destinations
then
System.out.println( "Dear " + $s + " : >>> " + $myMessage );
end
--------------------------------------------------------------------------------------------------------------------------------------
if the engine is configured to work in STREAM mode, the output is
Dear NULL :>>> Hello World
...
since the Strings extracted from the Collection "dest" have already been retracted by
the time the rule is fired, following the retraction of the Message event.
The problem does not show in CLOUD mode.
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11 years, 6 months
[JBoss JIRA] Created: (JBRULES-2402) Null Pointer exception while loading and executing two serialized rules which are in same package
by Nagarajan Santhanam (JIRA)
Null Pointer exception while loading and executing two serialized rules which are in same package
-------------------------------------------------------------------------------------------------
Key: JBRULES-2402
URL: https://jira.jboss.org/jira/browse/JBRULES-2402
Project: Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Components: drools-core (expert)
Affects Versions: 5.0.1.FINAL
Environment: OS : Ubuntu ( 2.6.28-13-server )
Sun Jdk 1.3
Reporter: Nagarajan Santhanam
Assignee: Mark Proctor
Priority: Critical
Hi,
I'm trying to load drts in a serialized fashion and executing it. During execution, I get the error as mentioned below.
But if I keep the package name different for both the drts, the same code works fine.
Find below the errors and code snippets :
Files Used :
1. Main.java
2. SchemeEngine.java
3. PurchaseOrder.java
4. PurchaseOrderImpl.java
5. SchemeHelper.java
6. ON_PO_PROD_PACK_PER_DISC.drt
7. ON_PO_PROD_DIS.drt
Main.java
*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package test;
import app.PurchaseOrder;
import app.PurchaseOrderImpl;
import java.util.ArrayList;
import java.util.List;
import scheme.SchemeEngine;
/**
*
* @author msuser1
*/
public class Main {
/**
* @param args the command line arguments
*/
public static void testCrazyBug() throws Exception {
// String[] drts = new String[]{"/ON_PO_PROD_DIS.drt", "/ON_PO_PROD_PACK_PER_DISC.drt", "/ON_PO_PROD_PACK_PER_DISC_using_function.drt"};
// String[] xls = new String[]{"/ON_PO_PROD_DISC_1.xls", "/ON_PO_PROD_PACK_PER_DISC.xls", "/ON_PO_PROD_PACK_PER_DISC_using_function.xls"};
String[] drts = new String[]{"/ON_PO_PROD_DIS.drt", "/ON_PO_PROD_PACK_PER_DISC.drt"};
String[] xls = new String[]{"/ON_PO_PROD_DISC_1.xls", "/ON_PO_PROD_PACK_PER_DISC.xls"};
PurchaseOrder po = new PurchaseOrderImpl();
System.out.println("length of drt " + drts.length);
SchemeEngine engineDirect = new SchemeEngine(PurchaseOrderImpl.class.getClassLoader());
for (int i = 0; i < drts.length; i++) {
engineDirect.loadSchemeFromDRT(drts[i], xls[i]);
}
System.out.println("Applying Schemes in normal mode");
engineDirect.applyOnPurchaseOrder(po);
List serializedList = new ArrayList();
for (int i = 0; i < drts.length; i++) {
SchemeEngine engineLocal = new SchemeEngine(PurchaseOrderImpl.class.getClassLoader());
engineLocal.loadSchemeFromDRT(drts[i], xls[i]);
byte[] blobBytes = engineLocal.serializeDefinition();
serializedList.add(blobBytes);
}
SchemeEngine engineOptimized = new SchemeEngine(PurchaseOrderImpl.class.getClassLoader());
for (int i = 0; i < drts.length; i++) {
engineOptimized.loadSerializedDefinition((byte[]) serializedList.get(i));
}
try {
System.out.println("Applying Schemes in optmized mode");
engineOptimized.applyOnPurchaseOrder(po);
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String args[]) throws Exception {
testCrazyBug();
}
}
SchemeEngine.java
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package scheme;
import app.*;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.Properties;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.drools.KnowledgeBase;
import org.drools.KnowledgeBaseConfiguration;
import org.drools.KnowledgeBaseFactory;
import org.drools.builder.DecisionTableConfiguration;
import org.drools.builder.DecisionTableInputType;
import org.drools.builder.KnowledgeBuilder;
import org.drools.builder.KnowledgeBuilderFactory;
import org.drools.builder.ResourceType;
import org.drools.common.DroolsObjectInputStream;
import org.drools.common.DroolsObjectOutputStream;
import org.drools.decisiontable.ExternalSpreadsheetCompiler;
import org.drools.decisiontable.InputType;
import org.drools.definition.KnowledgePackage;
import org.drools.io.ResourceFactory;
import org.drools.runtime.StatelessKnowledgeSession;
import org.drools.template.parser.DataListener;
import org.drools.template.parser.TemplateDataListener;
/**
*
* @author msuser1
*/
public class SchemeEngine {
private KnowledgeBase kbase = null;
private ClassLoader classLoader = null;
public SchemeEngine(ClassLoader cl) {
this.classLoader = cl;
KnowledgeBaseConfiguration kbc = KnowledgeBaseFactory.newKnowledgeBaseConfiguration(new Properties(), this.classLoader);
kbase = KnowledgeBaseFactory.newKnowledgeBase(kbc);
}
public void loadSchemeFromDRL(String drlFileName) {
DecisionTableConfiguration dtableconfiguration = KnowledgeBuilderFactory.newDecisionTableConfiguration();
dtableconfiguration.setInputType(DecisionTableInputType.XLS);
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(ResourceFactory.newClassPathResource(drlFileName, SchemeEngine.class),
ResourceType.DRL);
if (kbuilder.hasErrors()) {
System.err.println(kbuilder.getErrors().toString());
}
kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
}
public void loadSchemeFromXLS(String xlsFileName) {
DecisionTableConfiguration dtableconfiguration = KnowledgeBuilderFactory.newDecisionTableConfiguration();
dtableconfiguration.setInputType(DecisionTableInputType.XLS);
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(ResourceFactory.newClassPathResource(xlsFileName, SchemeEngine.class),
ResourceType.DTABLE, dtableconfiguration);
if (kbuilder.hasErrors()) {
System.err.println(kbuilder.getErrors().toString());
}
kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
}
public void loadSchemeFromDRT(String drtFileName, String xlsFileName) throws Exception {
loadSchemeFromDRT(drtFileName, xlsFileName, 1, 1);
}
public void loadSchemeFromDRT(String drtFileName, String xlsFileName, int startingRow, int startingColumn) throws Exception {
InputStream drtInput = SchemeEngine.class.getResourceAsStream(drtFileName);
ByteArrayOutputStream drtOut = new ByteArrayOutputStream();
writeToStream(drtInput, drtOut);
InputStream xlsInput = SchemeEngine.class.getResourceAsStream(xlsFileName);
ByteArrayOutputStream xlsOut = new ByteArrayOutputStream();
writeToStream(xlsInput, xlsOut);
loadSchemeFromDRT(drtOut.toByteArray(), xlsOut.toByteArray(), startingRow, startingColumn);
}
private void writeToStream(InputStream in, OutputStream out) throws IOException {
byte[] buf = new byte[4 * 1024];
int numRead = 0;
while ((numRead = in.read(buf)) >= 0) {
out.write(buf, 0, numRead);
}
}
public void loadSchemeFromDRT(byte[] drtContent, byte[] xlsContent) {
loadSchemeFromDRT(drtContent, xlsContent, 1, 1);
}
public void loadSchemeFromDRT(byte[] drtContent, byte[] xlsContent, int startingRow, int startingColumn) {
final ExternalSpreadsheetCompiler converter = new ExternalSpreadsheetCompiler();
final List<DataListener> listeners = new ArrayList<DataListener>();
InputStream in = new ByteArrayInputStream(drtContent);
TemplateDataListener listener = new TemplateDataListener(3, 1, in);
listeners.add(listener);
converter.compile(new ByteArrayInputStream(xlsContent), InputType.XLS, listeners);
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(ResourceFactory.newByteArrayResource(listener.renderDRL().getBytes()),
ResourceType.DRL);
if (kbuilder.hasErrors()) {
System.err.println(kbuilder.getErrors().toString());
}
kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
}
public byte[] serializeDefinition() {
DroolsObjectOutputStream dos = null;
ByteArrayOutputStream bos = null;
try {
bos = new ByteArrayOutputStream();
dos = new DroolsObjectOutputStream(bos);
dos.writeObject(kbase.getKnowledgePackages());
return bos.toByteArray();
} catch (IOException ex) {
Logger.getLogger(SchemeEngine.class.getName()).log(Level.SEVERE, null, ex);
return null;
} finally {
try {
dos.close();
bos.close();
} catch (IOException ex) {
Logger.getLogger(SchemeEngine.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
public void loadSerializedDefinition(byte[] serializedContent) {
try {
DroolsObjectInputStream dis = null;
ByteArrayInputStream bis = null;
bis = new ByteArrayInputStream(serializedContent);
dis = new DroolsObjectInputStream(bis);
Collection<KnowledgePackage> defn = (Collection<KnowledgePackage>)dis.readObject();
kbase.addKnowledgePackages(defn);
} catch (ClassNotFoundException ex) {
Logger.getLogger(SchemeEngine.class.getName()).log(Level.SEVERE, null, ex);
} catch (IOException ex) {
Logger.getLogger(SchemeEngine.class.getName()).log(Level.SEVERE, null, ex);
}
}
public void applyOnPurchaseOrder(PurchaseOrder purchaseOrder) {
if (kbase.getKnowledgePackages().size() == 0) {
throw new RuntimeException("No Schemes are loaded.");
}
List objects = new ArrayList();
objects.add(purchaseOrder);
if (purchaseOrder.orderDetails() != null && purchaseOrder.orderDetails().size() > 0) {
Iterator iter = purchaseOrder.orderDetails().iterator();
while (iter.hasNext()) {
PurchaseOrderDetail detail = (PurchaseOrderDetail) iter.next();
objects.add(detail);
}
}
StatelessKnowledgeSession session = kbase.newStatelessKnowledgeSession();
session.execute(Arrays.asList(objects.toArray()));
}
public void applyRule(Object[] objects) {
if (kbase.getKnowledgePackages().size() == 0) {
throw new RuntimeException("No Schemes are loaded.");
}
StatelessKnowledgeSession session = kbase.newStatelessKnowledgeSession();
session.execute(Arrays.asList(objects));
}
public static void main(String[] args) {
}
}
PurchaseOrder.java
package app;
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
import java.util.Date;
import java.util.List;
/**
*
* @author msuser1
*/
public interface PurchaseOrder {
public Float orderAmount();
public Date orderDate();
public Integer orderDay();
public List orderDetails();
public boolean belongsToGeoHierarchy(String nodeName);
public void addFreeItem(String schemeId, String skuId, int qty);
public void addFlatDiscount(String SchemeId, Float discountAmt);
public void addPercentageDiscount(String SchemeId, Float discountPercent);
public void addFlatDiscountForItem(String SchemeId, String skuId, Float discountAmt);
public void addPercentageDiscountForItem(String SchemeId, String skuId, Float discountPercent);
public void addPercentageDiscountPerUomForItem(String SchemeId, String skuId, Float discountPercent);
public void addInternalGiftVoucher(String SchemeId, Float voucherAmt);
public void addExternalGiftVoucher(String SchemeId, Float voucherAmt, String externalVendorId);
public void addInternalGiftVoucherForItem(String SchemeId, String skuId, Float voucherAmt);
public void addExternalGiftVoucherForItem(String SchemeId, String skuId, Float voucherAmt, String externalVendorId);
public void addRewardPoint(String SchemeId, int rewardPoint);
public void addRewardPointForItem(String SchemeId, String skuId, int rewardPoint);
public void addWeightBasedFlatDiscountPerUomForItem(String SchemeId, String skuId, Float discount_amt, String uomId);
public Boolean immediatePayment();
public Boolean regularPurchase();
public Boolean consignmentPurchase();
public Boolean cat2ConsignmentPurchase();
public Boolean cat3ConsignmentPurchase();
public Boolean intransitPurchase();
public Boolean skuPresent(String skuId);
public Integer materialQuantityForItem(String skuId);
public Boolean schemeApplied(String schemeDefinitionId);
public void addDetail(PurchaseOrderDetail prd);
}
=========================================================================================================================
PurchaseOrderImpl.java
package app;
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author msuser1
*/
public class PurchaseOrderImpl implements PurchaseOrder {
private List details = new ArrayList();
public Date orderDate() {
try {
DateFormat fmt = new SimpleDateFormat("yyyy-dd-MM");
Date dt = fmt.parse("2009-06-23");
return dt;
} catch (ParseException ex) {
Logger.getLogger(PurchaseOrderImpl.class.getName()).log(Level.SEVERE, null, ex);
return null;
}
}
public Integer orderDay(){
return 10;
}
public List orderDetails() {
return details;
}
public boolean belongsToGeoHierarchy(String nodeName) {
return true;
}
public void addFreeItem(String schemeId, String skuId, int qty) {
System.out.println("Add Free Item");
}
public void addFlatDiscount(String SchemeId, Long discountAmt) {
System.out.println("Add Flat Discount");
}
public void addPercentageDiscount(String SchemeId, int discountPercent) {
System.out.println("Add Percentage Discount");
}
public void addFlatDiscountForItem(String SchemeId, String skuId, Long discountAmt) {
System.out.println("Add Flat Discount For Item");
}
public void addPercentageDiscountForItem(String SchemeId, String skuId, int discountPercent) {
System.out.println("Add Percentage Discount For Item");
}
public void addPercentageDiscountPerUomForItem(String SchemeId, String skuId, int discountPercent) {
System.out.println("Add Percentage Discount For Uom For Item");
}
public void addInternalGiftVoucher(String SchemeId, Long voucherAmt) {
System.out.println("Add Internal Gift Voucher");
}
public void addExternalGiftVoucher(String SchemeId, Long voucherAmt, String externalVendorId) {
System.out.println("Add External Gift Voucher");
}
public void addInternalGiftVoucherForItem(String SchemeId, String skuId, Long voucherAmt) {
System.out.println("Add Internal Gift Voucher For Item");
}
public void addExternalGiftVoucherForItem(String SchemeId, String skuId, Long voucherAmt, String externalVendorId) {
System.out.println("Add External Gift Voucher For Item");
}
public void addRewardPoint(String SchemeId, int rewardPoint) {
System.out.println("Add Reward Point");
}
public void addRewardPointForItem(String SchemeId, String skuId, int rewardPoint) {
System.out.println("Add Reward Point For Item");
}
public Boolean immediatePayment(){
return true;
}
public Boolean regularPurchase() {
return true;
}
public Boolean consignmentPurchase() {
return false;
}
public Boolean cat2ConsignmentPurchase() {
return false;
}
public Boolean cat3ConsignmentPurchase() {
return false;
}
public Boolean commissionPurchase() {
return false;
}
public Boolean intransitPurchase() {
return false;
}
public Boolean skuPresent(String skuId) {
return false;
}
public Integer materialQuantityForItem(String skuId) {
return 10;
}
public Boolean schemeApplied(String schemeDefinitionId) {
return false;
}
public void addWeightBasedFlatDiscountPerUomForItem(String SchemeId, String skuId, Long discount_amt, String uomId) {
throw new UnsupportedOperationException("Not supported yet.");
}
public void addDetail(PurchaseOrderDetail pod)
{
details.add(pod);
}
public void addFlatDiscount(String SchemeId, Float discountAmt) {
throw new UnsupportedOperationException("Not supported yet.");
}
public void addFlatDiscountForItem(String SchemeId, String skuId, Float discountAmt) {
throw new UnsupportedOperationException("Not supported yet.");
}
public Float orderAmount() {
throw new UnsupportedOperationException("Not supported yet.");
}
public void addPercentageDiscount(String SchemeId, Float discountPercent) {
throw new UnsupportedOperationException("Not supported yet.");
}
public void addPercentageDiscountForItem(String SchemeId, String skuId, Float discountPercent) {
throw new UnsupportedOperationException("Not supported yet.");
}
public void addPercentageDiscountPerUomForItem(String SchemeId, String skuId, Float discountPercent) {
throw new UnsupportedOperationException("Not supported yet.");
}
public void addInternalGiftVoucher(String SchemeId, Float voucherAmt) {
throw new UnsupportedOperationException("Not supported yet.");
}
public void addExternalGiftVoucher(String SchemeId, Float voucherAmt, String externalVendorId) {
throw new UnsupportedOperationException("Not supported yet.");
}
public void addInternalGiftVoucherForItem(String SchemeId, String skuId, Float voucherAmt) {
throw new UnsupportedOperationException("Not supported yet.");
}
public void addExternalGiftVoucherForItem(String SchemeId, String skuId, Float voucherAmt, String externalVendorId) {
throw new UnsupportedOperationException("Not supported yet.");
}
public void addWeightBasedFlatDiscountPerUomForItem(String SchemeId, String skuId, Float discount_amt, String uomId) {
throw new UnsupportedOperationException("Not supported yet.");
}
}
SchemeHelper.java
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package helper;
import app.PurchaseOrder;
import app.PurchaseOrderDetail;
import java.lang.Float;
/**
*
* @author msuser1
*/
public class SchemeHelper {
public static boolean belongsToProductHierarchy(String skuId, String nodeName) {
return false; //Sku.belongsToProductHierarchy(nodeName);
}
public static Integer materialQuantityForItem(PurchaseOrder po, String skuId) {
return po.materialQuantityForItem(skuId);
}
public static boolean productIdOrProductAncestorMatching(PurchaseOrderDetail poDetail, String productId) {
System.out.println("Inside the method......................################################");
boolean result = false;
try {
result = poDetail.productId().compareTo(productId) == 0 || poDetail.belongsToAncestorProduct(productId).booleanValue();
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
public static boolean complexMethod(PurchaseOrderDetail poDetail, String productId, String packId) {
boolean result = false;
try {
result = (poDetail.packId().compareTo(packId) == 0 || poDetail.belongsToAncestorPack(packId).booleanValue()) && (poDetail.productId().compareTo(productId) == 0 || poDetail.belongsToAncestorProduct(productId).booleanValue());
} catch (Exception ex) {
ex.printStackTrace();
}
return result;
}
}
ON_PO_PROD_DIS.drt
template header
SchemeID
ProductID
Discount
package app;
import function helper.SchemeHelper.*
template "Scheme"
rule "po_@{SchemeID}_(a){row.rowNumber}"
when
$order : PurchaseOrder()
$orderDetail : PurchaseOrderDetail($det : this,eval($det.productId().compareTo("@{ProductID}") == 0 || $det.belongsToAncestorProduct("@{ProductID}") == true), purchaseOrder == $order)
then
float disAmt=0;
disAmt = $orderDetail.saleableQty() * @{Discount}F;
System.out.println("Discount amount = @{Discount}..XXXX..........." + disAmt);
$order.addFlatDiscountForItem("@{SchemeID}",$orderDetail.skuId(), disAmt);
end
end template
ON_PO_PROD_PACK_PER_DISC.drt
template header
SchemeID
ProductID
PackID
Discount
package app;
import app.*;
import function helper.SchemeHelper.*
template "Scheme"
rule "ON_PO_PROD_PACK_PER_DISC_(a){row.rowNumber}"
when
$order: PurchaseOrder()
$orderDetail : PurchaseOrderDetail($det : this, eval(
($det.belongsToAncestorPack("@{PackID}") == true || $det.packId().compareTo("@{PackID}") == 0)
&&
($det.productId().compareTo("@{ProductID}") == 0 || $det.belongsToAncestorProduct("@{ProductID}") == true)
) , purchaseOrder == $order)
then
float disAmt=0;
disAmt = ($orderDetail.materialPrice() * $orderDetail.saleableQty()) * @{Discount}F/100;
System.out.println("Discount amount = XXXX..........." + disAmt);
$order.addFlatDiscountForItem("@{SchemeID}",$orderDetail.skuId(), disAmt);
end
end template
Error :
java.lang.NullPointerException
at org.drools.base.ClassFieldReader.getIndex(ClassFieldReader.java:78)
at org.drools.util.LeftTupleIndexHashTable.<init>(LeftTupleIndexHashTable.java:48)
at org.drools.util.LeftTupleIndexHashTable.<init>(LeftTupleIndexHashTable.java:35)
at org.drools.common.SingleBetaConstraints.createBetaMemory(SingleBetaConstraints.java:172)
at org.drools.reteoo.BetaNode.createMemory(BetaNode.java:340)
at org.drools.common.ConcurrentNodeMemories.createNodeMemory(ConcurrentNodeMemories.java:96)
at org.drools.common.ConcurrentNodeMemories.getNodeMemory(ConcurrentNodeMemories.java:75)
at org.drools.common.AbstractWorkingMemory.getNodeMemory(AbstractWorkingMemory.java:1534)
at org.drools.reteoo.JoinNode.assertLeftTuple(JoinNode.java:103)
at org.drools.reteoo.CompositeLeftTupleSinkAdapter.doPropagateAssertLeftTuple(CompositeLeftTupleSinkAdapter.java:145)
at org.drools.reteoo.CompositeLeftTupleSinkAdapter.createAndPropagateAssertLeftTuple(CompositeLeftTupleSinkAdapter.java:57)
at org.drools.reteoo.LeftInputAdapterNode.assertObject(LeftInputAdapterNode.java:142)
at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:42)
at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:185)
at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:146)
at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1046)
at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1001)
at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:788)
at org.drools.impl.StatelessKnowledgeSessionImpl.execute(StatelessKnowledgeSessionImpl.java:259)
at scheme.SchemeEngine.applyOnPurchaseOrder(SchemeEngine.java:178)
at test.Main.testCrazyBug(Main.java:55)
at test.Main.main(Main.java:64)
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11 years, 6 months