package org.drools.integrationtests;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.io.StringReader;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import junit.framework.Assert;
import org.junit.After;
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;
import static org.junit.Assert.*;
import org.drools.Cell;
import org.drools.Cheese;
import org.drools.FactHandle;
import org.drools.KnowledgeBase;
import org.drools.KnowledgeBaseFactory;
import org.drools.Message;
import org.drools.Neighbor;
import org.drools.Person;
import org.drools.PersonInterface;
import org.drools.RuleBase;
import org.drools.RuleBaseConfiguration;
import org.drools.RuleBaseFactory;
import org.drools.StatefulSession;
import org.drools.WorkingMemory;
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.common.DefaultAgenda;
import org.drools.common.InternalWorkingMemoryActions;
import org.drools.common.RuleFlowGroupImpl;
import org.drools.compiler.DrlParser;
import org.drools.compiler.DroolsParserException;
import org.drools.compiler.PackageBuilder;
import org.drools.definition.KnowledgePackage;
import org.drools.event.ActivationCancelledEvent;
import org.drools.event.ActivationCreatedEvent;
import org.drools.event.AgendaEventListener;
import org.drools.event.DefaultAgendaEventListener;
import org.drools.io.ResourceFactory;
import org.drools.lang.descr.PackageDescr;
import org.drools.rule.Package;
import org.drools.runtime.StatefulKnowledgeSession;
import org.drools.spi.Activation;
import org.drools.spi.ActivationGroup;
import org.drools.spi.AgendaGroup;
public class ExecutionFlowControlTest {
protected RuleBase getRuleBase() throws Exception {
return RuleBaseFactory.newRuleBase( RuleBase.RETEOO,
null );
}
protected RuleBase getRuleBase( final RuleBaseConfiguration config ) throws Exception {
return RuleBaseFactory.newRuleBase( RuleBase.RETEOO,
config );
}
@Test
public void testSalienceIntegerAndDepthCrs() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "test_salienceIntegerRule.drl" ) ) );
final Package pkg = builder.getPackage();
RuleBase ruleBase = getRuleBase();
ruleBase.addPackage( pkg );
ruleBase = SerializationHelper.serializeObject( ruleBase );
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal( "list",
list );
final PersonInterface person = new Person( "Edson",
"cheese" );
workingMemory.insert( person );
workingMemory.fireAllRules();
assertEquals( "Three rules should have been fired",
3,
list.size() );
assertEquals( "Rule 4 should have been fired first",
"Rule 4",
list.get( 0 ) );
assertEquals( "Rule 2 should have been fired second",
"Rule 2",
list.get( 1 ) );
assertEquals( "Rule 3 should have been fired third",
"Rule 3",
list.get( 2 ) );
}
@Test
public void testSalienceExpression() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "test_salienceExpressionRule.drl" ) ) );
if ( builder.hasErrors() ) {
fail( builder.getErrors().toString() );
}
final Package pkg = builder.getPackage();
RuleBase ruleBase = getRuleBase();
ruleBase.addPackage( pkg );
ruleBase = SerializationHelper.serializeObject( ruleBase );
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal( "list",
list );
final PersonInterface person10 = new Person( "bob",
"cheese",
10 );
workingMemory.insert( person10 );
final PersonInterface person20 = new Person( "mic",
"cheese",
20 );
workingMemory.insert( person20 );
workingMemory.fireAllRules();
assertEquals( "Two rules should have been fired",
2,
list.size() );
assertEquals( "Rule 3 should have been fired first",
"Rule 3",
list.get( 0 ) );
assertEquals( "Rule 2 should have been fired second",
"Rule 2",
list.get( 1 ) );
}
@Test
public void testSalienceMinInteger() throws Exception {
final PackageBuilder builder = new PackageBuilder();
String text =
"package org.drools.test\n" +
"global java.util.List list\n" +
"rule a\n" +
"when\n" +
"then\n" +
" list.add( \"a\" );\n" +
"end\n" +
"\n" +
"rule b\n" +
" salience ( Integer.MIN_VALUE )\n" +
"when\n" +
"then\n" +
" list.add( \"b\" );\n" +
"end\n" +
"\n" +
"rule c\n" +
"when\n" +
"then\n" +
" list.add( \"c\" );\n" +
"end\n";
builder.addPackageFromDrl( new StringReader(text) );
if ( builder.hasErrors() ) {
fail( builder.getErrors().toString() );
}
final Package pkg = builder.getPackage();
RuleBase ruleBase = getRuleBase();
ruleBase.addPackage( pkg );
ruleBase = SerializationHelper.serializeObject( ruleBase );
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal( "list",
list );
workingMemory.fireAllRules();
assertEquals( "b", list.get(2));
}
@Test
public void testNoLoop() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "no-loop.drl" ) ) );
if ( builder.hasErrors() ) {
fail( builder.getErrors().toString() );
}
final Package pkg = builder.getPackage();
RuleBase ruleBase = getRuleBase();
ruleBase.addPackage( pkg );
ruleBase = SerializationHelper.serializeObject( ruleBase );
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal( "list",
list );
final Cheese brie = new Cheese( "brie",
12 );
workingMemory.insert( brie );
workingMemory.fireAllRules();
assertEquals( "Should not loop and thus size should be 1",
1,
list.size() );
}
@Test
public void testNoLoopWithModify() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "no-loop_with_modify.drl" ) ) );
final Package pkg = builder.getPackage();
RuleBase ruleBase = getRuleBase();
ruleBase.addPackage( pkg );
ruleBase = SerializationHelper.serializeObject( ruleBase );
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal( "list",
list );
final Cheese brie = new Cheese( "brie",
12 );
workingMemory.insert( brie );
workingMemory.fireAllRules();
assertEquals( "Should not loop and thus size should be 1",
1,
list.size() );
assertEquals( 50,
brie.getPrice() );
}
@Test
public void testLockOnActive() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "test_LockOnActive.drl" ) ) );
final Package pkg = builder.getPackage();
RuleBase ruleBase = getRuleBase();
ruleBase.addPackage( pkg );
ruleBase = SerializationHelper.serializeObject( ruleBase );
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal( "list",
list );
// AgendaGroup "group1" is not active, so should receive activation
final Cheese brie12 = new Cheese( "brie",
12 );
workingMemory.insert( brie12 );
DefaultAgenda agenda = (DefaultAgenda) workingMemory.getAgenda();
final AgendaGroup group1 = agenda.getAgendaGroup( "group1" );
assertEquals( 1,
group1.size() );
workingMemory.setFocus( "group1" );
// AgendaqGroup "group1" is now active, so should not receive activations
final Cheese brie10 = new Cheese( "brie",
10 );
workingMemory.insert( brie10 );
assertEquals( 1,
group1.size() );
final Cheese cheddar20 = new Cheese( "cheddar",
20 );
workingMemory.insert( cheddar20 );
final AgendaGroup group2 = agenda.getAgendaGroup( "group1" );
assertEquals( 1,
group2.size() );
final RuleFlowGroupImpl rfg = (RuleFlowGroupImpl) agenda.getRuleFlowGroup( "ruleflow2" );
rfg.setActive( true );
final Cheese cheddar17 = new Cheese( "cheddar",
17 );
workingMemory.insert( cheddar17 );
assertEquals( 1,
group2.size() );
}
@Test
public void testLockOnActiveForMain() {
String str = "";
str += "package org.drools \n";
str += "global java.util.List list \n";
str += "rule rule1 \n";
str += " lock-on-active true \n";
str += "when \n";
str += " $str : String() \n";
str += "then \n";
str += " list.add( $str ); \n";
str += "end \n";
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add( ResourceFactory.newByteArrayResource( str.getBytes() ),
ResourceType.DRL );
assertFalse( kbuilder.hasErrors() );
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages( kbuilder.getKnowledgePackages() );
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
List list = new ArrayList();
ksession.setGlobal( "list",
list );
ksession.insert( "hello1" );
ksession.insert( "hello2" );
ksession.insert( "hello3" );
ksession.fireAllRules();
assertEquals( 3,
list.size() );
ksession.insert( "hello4" );
ksession.insert( "hello5" );
ksession.insert( "hello6" );
ksession.fireAllRules();
assertEquals( 6,
list.size() );
}
@Test
public void testLockOnActiveForMainWithHalt() {
String str = "";
str += "package org.drools \n";
str += "global java.util.List list \n";
str += "rule rule1 \n";
str += " lock-on-active true \n";
str += "when \n";
str += " $str : String() \n";
str += "then \n";
str += " list.add( $str ); \n";
str += " if ( list.size() == 2 ) {\n" +
" drools.halt();\n" +
" }";
str += "end \n";
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add( ResourceFactory.newByteArrayResource( str.getBytes() ),
ResourceType.DRL );
assertFalse( kbuilder.getErrors().toString(),
kbuilder.hasErrors() );
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages( kbuilder.getKnowledgePackages() );
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
List list = new ArrayList();
ksession.setGlobal( "list",
list );
ksession.insert( "hello1" );
ksession.insert( "hello2" );
ksession.insert( "hello3" );
ksession.fireAllRules();
assertEquals( 2,
list.size() );
// because we have halted, the next 3 will be ignored, but it will still fire the remaing 3rd activation from previous asserts
ksession.insert( "hello4" );
ksession.insert( "hello5" );
ksession.insert( "hello6" );
ksession.fireAllRules();
assertEquals( 3,
list.size() );
}
@Test
public void testLockOnActiveWithModify() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "test_LockOnActiveWithUpdate.drl" ) ) );
final Package pkg = builder.getPackage();
RuleBase ruleBase = getRuleBase();
ruleBase.addPackage( pkg );
ruleBase = SerializationHelper.serializeObject( ruleBase );
final WorkingMemory wm = ruleBase.newStatefulSession();
final List list = new ArrayList();
wm.setGlobal( "list",
list );
final Cheese brie = new Cheese( "brie",
13 );
final Person bob = new Person( "bob" );
bob.setCheese( brie );
final Person mic = new Person( "mic" );
mic.setCheese( brie );
final Person mark = new Person( "mark" );
mark.setCheese( brie );
final FactHandle brieHandle = wm.insert( brie );
wm.insert( bob );
wm.insert( mic );
wm.insert( mark );
final DefaultAgenda agenda = (DefaultAgenda) wm.getAgenda();
final AgendaGroup group1 = agenda.getAgendaGroup( "group1" );
agenda.setFocus( group1 );
assertEquals( 3,
group1.size() );
agenda.fireNextItem( null );
assertEquals( 2,
group1.size() );
wm.update( brieHandle,
brie );
assertEquals( 2,
group1.size() );
AgendaGroup group2 = agenda.getAgendaGroup( "group2" );
agenda.setFocus( group2 );
RuleFlowGroupImpl rfg = (RuleFlowGroupImpl) ((DefaultAgenda) wm.getAgenda()).getRuleFlowGroup( "ruleflow2" );
assertEquals( 3,
rfg.size() );
agenda.activateRuleFlowGroup( "ruleflow2" );
agenda.fireNextItem( null );
assertEquals( 2,
rfg.size() );
wm.update( brieHandle,
brie );
assertEquals( 2,
group2.size() );
}
@Test
public void testLockOnActiveWithModify2() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "test_LockOnActiveWithModify.drl" ) ) );
final Package pkg = builder.getPackage();
RuleBase ruleBase = getRuleBase();
ruleBase.addPackage( pkg );
ruleBase = SerializationHelper.serializeObject( ruleBase );
final StatefulSession session = ruleBase.newStatefulSession();
// WorkingMemoryFileLogger logger = new WorkingMemoryFileLogger( session );
// logger.setFileName( "conway" );
// populating working memory
final int size = 3;
Cell[][] cells = new Cell[size][];
FactHandle[][] handles = new FactHandle[size][];
for ( int row = 0; row < size; row++ ) {
cells[row] = new Cell[size];
handles[row] = new FactHandle[size];
for ( int col = 0; col < size; col++ ) {
cells[row][col] = new Cell( Cell.DEAD,
row,
col );
handles[row][col] = session.insert( cells[row][col] );
if ( row >= 1 && col >= 1 ) {
// northwest
session.insert( new Neighbor( cells[row - 1][col - 1],
cells[row][col] ) );
session.insert( new Neighbor( cells[row][col],
cells[row - 1][col - 1] ) );
}
if ( row >= 1 ) {
// north
session.insert( new Neighbor( cells[row - 1][col],
cells[row][col] ) );
session.insert( new Neighbor( cells[row][col],
cells[row - 1][col] ) );
}
if ( row >= 1 && col < (size - 1) ) {
// northeast
session.insert( new Neighbor( cells[row - 1][col + 1],
cells[row][col] ) );
session.insert( new Neighbor( cells[row][col],
cells[row - 1][col + 1] ) );
}
if ( col >= 1 ) {
// west
session.insert( new Neighbor( cells[row][col - 1],
cells[row][col] ) );
session.insert( new Neighbor( cells[row][col],
cells[row][col - 1] ) );
}
}
}
session.clearAgendaGroup( "calculate" );
// now, start playing
int fired = session.fireAllRules( 100 );
assertEquals( 0,
fired );
session.setFocus( "calculate" );
fired = session.fireAllRules( 100 );
// logger.writeToDisk();
assertEquals( 0,
fired );
assertEquals( "MAIN",
session.getAgenda().getFocusName() );
// on the fifth day God created the birds and sea creatures
cells[0][0].setState( Cell.LIVE );
session.update( handles[0][0],
cells[0][0] );
session.setFocus( "birth" );
session.setFocus( "calculate" );
fired = session.fireAllRules( 100 );
// logger.writeToDisk();
int[][] expected = new int[][]{{0, 1, 0}, {1, 1, 0}, {0, 0, 0}};
assertEqualsMatrix( size,
cells,
expected );
assertEquals( "MAIN",
session.getAgenda().getFocusName() );
// on the sixth day God created the animals that walk over the land and the Man
cells[1][1].setState( Cell.LIVE );
session.update( handles[1][1],
cells[1][1] );
session.setFocus( "calculate" );
session.fireAllRules( 100 );
// logger.writeToDisk();
expected = new int[][]{{1, 2, 1}, {2, 1, 1}, {1, 1, 1}};
assertEqualsMatrix( size,
cells,
expected );
assertEquals( "MAIN",
session.getAgenda().getFocusName() );
session.setFocus( "birth" );
session.fireAllRules( 100 );
expected = new int[][]{{1, 2, 1}, {2, 1, 1}, {1, 1, 1}};
assertEqualsMatrix( size,
cells,
expected );
assertEquals( "MAIN",
session.getAgenda().getFocusName() );
session.setFocus( "calculate" );
session.fireAllRules( 100 );
// logger.writeToDisk();
// printMatrix( cells );
expected = new int[][]{{3, 3, 2}, {3, 3, 2}, {2, 2, 1}};
assertEqualsMatrix( size,
cells,
expected );
assertEquals( "MAIN",
session.getAgenda().getFocusName() );
// on the seventh day, while God rested, man start killing them all
cells[0][0].setState( Cell.DEAD );
session.update( handles[0][0],
cells[0][0] );
session.setFocus( "calculate" );
session.fireAllRules( 100 );
expected = new int[][]{{3, 2, 2}, {2, 2, 2}, {2, 2, 1}};
assertEqualsMatrix( size,
cells,
expected );
assertEquals( "MAIN",
session.getAgenda().getFocusName() );
}
// private void printMatrix(Cell[][] cells) {
// System.out.println("----------");
// for( int row = 0; row < cells.length; row++) {
// for( int col = 0; col < cells[row].length; col++ ) {
// System.out.print( cells[row][col].getValue() + ((cells[row][col].getState()==Cell.LIVE)?"L ":". ") );
// }
// System.out.println();
// }
// System.out.println("----------");
// }
private void assertEqualsMatrix( final int size,
Cell[][] cells,
int[][] expected ) {
for ( int row = 0; row < size; row++ ) {
for ( int col = 0; col < size; col++ ) {
assertEquals( "Wrong value at " + row + "," + col + ": ",
expected[row][col],
cells[row][col].getValue() );
}
}
}
@Test
public void testAgendaGroups() throws Exception {
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add( ResourceFactory.newClassPathResource( "test_AgendaGroups.drl",
getClass() ),
ResourceType.DRL );
assertFalse( kbuilder.hasErrors() );
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages( kbuilder.getKnowledgePackages() );
kbase = SerializationHelper.serializeObject( kbase );
final StatefulKnowledgeSession session = kbase.newStatefulKnowledgeSession();
final List list = new ArrayList();
session.setGlobal( "list",
list );
final Cheese brie = new Cheese( "brie",
12 );
session.insert( brie );
session.fireAllRules();
assertEquals( 7,
list.size() );
assertEquals( "group3",
list.get( 0 ) );
assertEquals( "group4",
list.get( 1 ) );
assertEquals( "group3",
list.get( 2 ) );
assertEquals( "MAIN",
list.get( 3 ) );
assertEquals( "group1",
list.get( 4 ) );
assertEquals( "group1",
list.get( 5 ) );
assertEquals( "MAIN",
list.get( 6 ) );
session.getAgenda().getAgendaGroup( "group2" ).setFocus();
session.fireAllRules();
assertEquals( 8,
list.size() );
assertEquals( "group2",
list.get( 7 ) );
// clear main only the auto focus related ones should fire
list.clear();
session.insert( new Cheese( "cheddar" ) );
session.getAgenda().getAgendaGroup( "MAIN" ).clear();
session.fireAllRules();
assertEquals( 3,
list.size() );
assertEquals( "group3",
list.get( 0 ) );
assertEquals( "group4",
list.get( 1 ) );
assertEquals( "group3",
list.get( 2 ) );
}
@Test
public void testActivationGroups() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "test_ActivationGroups.drl" ) ) );
final Package pkg = builder.getPackage();
RuleBase ruleBase = getRuleBase();
ruleBase.addPackage( pkg );
ruleBase = SerializationHelper.serializeObject( ruleBase );
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal( "list",
list );
final Cheese brie = new Cheese( "brie",
12 );
workingMemory.insert( brie );
DefaultAgenda agenda = (DefaultAgenda) workingMemory.getAgenda();
final ActivationGroup activationGroup0 = agenda.getActivationGroup( "activation-group-0" );
assertEquals( 2,
activationGroup0.size() );
final ActivationGroup activationGroup3 = agenda.getActivationGroup( "activation-group-3" );
assertEquals( 1,
activationGroup3.size() );
final AgendaGroup agendaGroup3 = agenda.getAgendaGroup( "agenda-group-3" );
assertEquals( 1,
agendaGroup3.size() );
final AgendaGroup agendaGroupMain = agenda.getAgendaGroup( "MAIN" );
assertEquals( 3,
agendaGroupMain.size() );
workingMemory.clearAgendaGroup( "agenda-group-3" );
assertEquals( 0,
activationGroup3.size() );
assertEquals( 0,
agendaGroup3.size() );
workingMemory.fireAllRules();
assertEquals( 0,
activationGroup0.size() );
assertEquals( 2,
list.size() );
assertEquals( "rule0",
list.get( 0 ) );
assertEquals( "rule2",
list.get( 1 ) );
}
public static class Holder {
private Integer val;
private String outcome;
public Holder(Integer val) {
this.val = val;
}
public void setValue(Integer val) {
this.val = val;
}
public Integer getValue() {
return val;
}
public void setOutcome(String outcome) {
this.outcome = outcome;
}
public String getOutcome() {
return outcome;
}
}
@Test // JBRULES-2398
public void testActivationGroupWithTroubledSyntax() {
String str = "package BROKEN_TEST;\n" +
"import " + Holder.class.getCanonicalName() + ";\n" +
"rule \"_12\"\n" +
" \n" +
" salience 3\n" +
" activation-group \"BROKEN\"\n" +
" when\n" +
" $a : Holder(value in (0))\n" +
" then\n" +
" System.out.println(\"setting 0\");\n" +
" $a.setOutcome(\"setting 0\");\n" +
"end\n" +
"\n" +
"rule \"_13\"\n" +
" \n" +
" salience 2\n" +
" activation-group \"BROKEN\"\n" +
" when\n" +
" $a : Holder(value in (1))\n" +
" then\n" +
" System.out.println(\"setting 1\");\n" +
" $a.setOutcome(\"setting 1\");\n" +
"end\n" +
"\n" +
"rule \"_22\"\n" +
" \n" +
" salience 1\n" +
" activation-group \"BROKEN\"\n" +
" when\n" +
" $a : Holder(value == null)\n" +
" then\n" +
" System.out.println(\"setting null\");\n" +
" $a.setOutcome(\"setting null\");\n" +
"end\n" +
"\n" +
"";
KnowledgeBuilder kBuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kBuilder.add( ResourceFactory.newByteArrayResource( str.getBytes() ), ResourceType.DRL);
if (kBuilder.hasErrors()) {
System.err.println("Errors");
KnowledgeBuilderErrors errors = kBuilder.getErrors();
for (KnowledgeBuilderError kbe : errors) {
System.err.println(kbe.getMessage());
for (int errLine : kbe.getErrorLines()) {
System.err.println(errLine);
}
}
System.exit(1);
}
KnowledgeBase kBase = KnowledgeBaseFactory.newKnowledgeBase();
Collection<KnowledgePackage> knowledgePackages = kBuilder.getKnowledgePackages();
kBase.addKnowledgePackages(knowledgePackages);
StatefulKnowledgeSession session = kBase.newStatefulKnowledgeSession();
Holder inrec = new Holder(1);
System.out.println("Holds: " + inrec.getValue());
session.insert(inrec);
session.fireAllRules();
Assert.assertEquals(1, session.getFactHandles().size());
Assert.assertEquals("setting 1", inrec.getOutcome());
session = kBase.newStatefulKnowledgeSession();
inrec = new Holder(null);
System.out.println("Holds: " + inrec.getValue());
session.insert(inrec);
session.fireAllRules();
Assert.assertEquals(1, session.getFactHandles().size());
Assert.assertEquals("setting null", inrec.getOutcome());
session = kBase.newStatefulKnowledgeSession();
inrec = new Holder(0);
System.out.println("Holds: " + inrec.getValue());
session.insert(inrec);
session.fireAllRules(); // appropriate rule is not fired!
Assert.assertEquals(1, session.getFactHandles().size());
Assert.assertEquals("setting 0", inrec.getOutcome());
}
@Test
public void testInsertRetractNoloop() throws Exception {
// read in the source
final Reader reader = new InputStreamReader( getClass().getResourceAsStream( "test_Insert_Retract_Noloop.drl" ) );
RuleBase ruleBase = loadRuleBase( reader );
ruleBase = SerializationHelper.serializeObject( ruleBase );
final WorkingMemory wm = ruleBase.newStatefulSession();
wm.insert( new Cheese( "stilton",
15 ) );
wm.fireAllRules();
}
@Test
public void testUpdateNoLoop() throws Exception {
// JBRULES-780, throws a NullPointer or infinite loop if there is an issue
final Reader reader = new InputStreamReader( getClass().getResourceAsStream( "test_UpdateNoloop.drl" ) );
RuleBase ruleBase = loadRuleBase( reader );
ruleBase = SerializationHelper.serializeObject( ruleBase );
final WorkingMemory wm = ruleBase.newStatefulSession();
wm.insert( new Cheese( "stilton",
15 ) );
wm.fireAllRules();
}
@Test
public void testUpdateActivationCreationNoLoop() throws Exception {
// JBRULES-787, no-loop blocks all dependant tuples for update
final Reader reader = new InputStreamReader( getClass().getResourceAsStream( "test_UpdateActivationCreationNoLoop.drl" ) );
RuleBase ruleBase = loadRuleBase( reader );
ruleBase = SerializationHelper.serializeObject( ruleBase );
final InternalWorkingMemoryActions wm = (InternalWorkingMemoryActions) ruleBase.newStatefulSession();
final List created = new ArrayList();
final List cancelled = new ArrayList();
final AgendaEventListener l = new DefaultAgendaEventListener() {
public void activationCreated( ActivationCreatedEvent event,
WorkingMemory workingMemory ) {
created.add( event );
}
public void activationCancelled( ActivationCancelledEvent event,
WorkingMemory workingMemory ) {
cancelled.add( event );
}
};
wm.addEventListener( l );
final Cheese stilton = new Cheese( "stilton",
15 );
final FactHandle stiltonHandle = wm.insert( stilton );
final Person p1 = new Person( "p1" );
p1.setCheese( stilton );
wm.insert( p1 );
final Person p2 = new Person( "p2" );
p2.setCheese( stilton );
wm.insert( p2 );
final Person p3 = new Person( "p3" );
p3.setCheese( stilton );
wm.insert( p3 );
assertEquals( 3,
created.size() );
assertEquals( 0,
cancelled.size() );
final Activation item = ((ActivationCreatedEvent) created.get( 2 )).getActivation();
// simulate a modify inside a consequence
wm.update( stiltonHandle,
stilton,
item.getRule(),
item );
// with true modify, no reactivations should be triggered
assertEquals( 3,
created.size() );
assertEquals( 0,
cancelled.size() );
}
@Test
public void testRuleFlowGroup() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "ruleflowgroup.drl" ) ) );
final Package pkg = builder.getPackage();
RuleBase ruleBase = getRuleBase();
ruleBase.addPackage( pkg );
ruleBase = SerializationHelper.serializeObject( ruleBase );
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal( "list",
list );
workingMemory.insert( "Test" );
workingMemory.fireAllRules();
assertEquals( 0,
list.size() );
workingMemory.getAgenda().activateRuleFlowGroup( "Group1" );
workingMemory.fireAllRules();
assertEquals( 1,
list.size() );
}
@Test
public void testRuleFlowGroupDeactivate() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "ruleflowgroup2.drl" ) ) );
final Package pkg = builder.getPackage();
RuleBase ruleBase = getRuleBase();
ruleBase.addPackage( pkg );
ruleBase = SerializationHelper.serializeObject( ruleBase );
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal( "list",
list );
workingMemory.insert( "Test" );
workingMemory.fireAllRules();
assertEquals( 0,
list.size() );
assertEquals( 2,
workingMemory.getAgenda().getRuleFlowGroup( "Group1" ).size() );
workingMemory.getAgenda().activateRuleFlowGroup( "Group1" );
workingMemory.fireAllRules();
assertEquals( 0,
list.size() );
}
@Test
public void testRuleFlowGroupInActiveMode() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl( new InputStreamReader( getClass().getResourceAsStream( "ruleflowgroup.drl" ) ) );
final Package pkg = builder.getPackage();
RuleBase ruleBase = getRuleBase();
ruleBase.addPackage( pkg );
ruleBase = SerializationHelper.serializeObject( ruleBase );
final StatefulSession workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal( "list",
list );
workingMemory.insert( "Test" );
workingMemory.fireAllRules();
assertEquals( 0,
list.size() );
workingMemory.getAgenda().activateRuleFlowGroup( "Group1" );
workingMemory.fireAllRules();
assertEquals( 1,
list.size() );
workingMemory.halt();
}
private RuleBase loadRuleBase( final Reader reader ) throws IOException,
DroolsParserException,
Exception {
final DrlParser parser = new DrlParser();
final PackageDescr packageDescr = parser.parse( reader );
if ( parser.hasErrors() ) {
fail( "Error messages in parser, need to sort this our (or else collect error messages)" );
}
// pre build the package
final PackageBuilder builder = new PackageBuilder();
builder.addPackage( packageDescr );
final Package pkg = builder.getPackage();
// add the package to a rulebase
final RuleBase ruleBase = getRuleBase();
ruleBase.addPackage( pkg );
// load up the rulebase
return ruleBase;
}
@Test
public void testDateEffective() throws Exception {
// read in the source
final Reader reader = new InputStreamReader( getClass().getResourceAsStream( "test_EffectiveDate.drl" ) );
RuleBase ruleBase = loadRuleBase( reader );
ruleBase = SerializationHelper.serializeObject( ruleBase );
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal( "list",
list );
// go !
final Message message = new Message( "hola" );
workingMemory.insert( message );
workingMemory.fireAllRules();
assertFalse( message.isFired() );
}
}