forked from apache/incubator-kie-drools
/
BackwardChainingTest.java
2554 lines (2204 loc) · 101 KB
/
BackwardChainingTest.java
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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.drools.compiler.integrationtests;
import java.io.IOException;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.drools.compiler.integrationtests.incrementalcompilation.TestUtil;
import org.drools.base.InitialFact;
import org.drools.base.base.ClassObjectType;
import org.drools.core.common.InternalFactHandle;
import org.drools.core.common.InternalWorkingMemory;
import org.drools.core.impl.InternalRuleBase;
import org.drools.core.reteoo.AccumulateNode;
import org.drools.core.reteoo.BetaMemory;
import org.drools.core.reteoo.BetaNode;
import org.drools.core.reteoo.ExistsNode;
import org.drools.core.reteoo.FromNode;
import org.drools.core.reteoo.NotNode;
import org.drools.core.reteoo.ObjectTypeNode;
import org.drools.core.reteoo.QueryElementNode;
import org.drools.core.reteoo.RightInputAdapterNode;
import org.drools.kiesession.rulebase.InternalKnowledgeBase;
import org.drools.kiesession.session.StatefulKnowledgeSessionImpl;
import org.drools.testcoverage.common.model.Address;
import org.drools.testcoverage.common.model.Person;
import org.drools.testcoverage.common.util.KieBaseTestConfiguration;
import org.drools.testcoverage.common.util.KieBaseUtil;
import org.drools.testcoverage.common.util.KieSessionTestConfiguration;
import org.drools.testcoverage.common.util.KieUtil;
import org.drools.testcoverage.common.util.SerializationHelper;
import org.drools.testcoverage.common.util.TestParametersUtil;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.kie.api.KieBase;
import org.kie.api.KieServices;
import org.kie.api.builder.KieModule;
import org.kie.api.builder.ReleaseId;
import org.kie.api.definition.KiePackage;
import org.kie.api.io.ResourceType;
import org.kie.api.runtime.KieContainer;
import org.kie.api.runtime.KieSession;
import org.kie.api.runtime.rule.FactHandle;
import org.kie.api.runtime.rule.LiveQuery;
import org.kie.api.runtime.rule.QueryResults;
import org.kie.api.runtime.rule.QueryResultsRow;
import org.kie.api.runtime.rule.Row;
import org.kie.api.runtime.rule.Variable;
import org.kie.api.runtime.rule.ViewChangedEventListener;
import org.kie.internal.builder.KnowledgeBuilder;
import org.kie.internal.builder.conf.PropertySpecificOption;
import org.kie.internal.io.ResourceFactory;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.fail;
import static org.kie.api.runtime.rule.Variable.v;
@RunWith(Parameterized.class)
public class BackwardChainingTest extends AbstractBackwardChainingTest {
public BackwardChainingTest(final KieBaseTestConfiguration kieBaseTestConfiguration) {
super(kieBaseTestConfiguration);
}
@Parameterized.Parameters(name = "KieBase type={0}")
public static Collection<Object[]> getParameters() {
return TestParametersUtil.getKieBaseCloudConfigurations(true);
}
@Test(timeout = 10000)
public void testQueryPatternBindingAsResult() throws IOException, ClassNotFoundException {
String str = "" +
"package org.drools.compiler.test \n" +
"import " + Person.class.getCanonicalName() + "\n" +
"global java.util.List list\n" +
"query peeps( Person $p, String $name, String $likes, int $age ) \n" +
" $p := Person( $name := name, $likes := likes, $age := age; ) \n" +
"end\n";
str += "rule x1\n" +
"when\n" +
" String( this == \"go1\" )\n" +
// output, output, output ,output
" ?peeps($p, $name1; $likes1 : $likes, $age1 : $age )\n" +
"then\n" +
" list.add( $p );\n" +
" list.add( $name1 + \" : \" + $age1 );\n" +
"end \n";
final KieBase kbase = KieBaseUtil.getKieBaseFromKieModuleFromDrl("backward-chaining-test", kieBaseTestConfiguration, str);
KieSession ksession = kbase.newKieSession();
try {
final List list = new ArrayList<>();
ksession.setGlobal("list", list);
final Person p1 = new Person("darth",
"stilton",
100);
final Person p2 = new Person("darth",
"stilton",
200);
final Person p3 = new Person("yoda",
"stilton",
300);
final Person p4 = new Person("luke",
"brie",
300);
final Person p5 = new Person("bobba",
"cheddar",
300);
ksession.insert(p1);
ksession.insert(p2);
ksession.insert(p3);
ksession.insert(p4);
ksession.insert(p5);
ksession.insert("go1");
ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
ksession.fireAllRules();
if (kieBaseTestConfiguration.isIdentity()) {
assertThat(list.size()).isEqualTo(10);
assertThat(list.get(list.indexOf("darth : 100") - 1)).isEqualTo(p1);
assertThat(list.contains("darth : 100")).isTrue();
assertThat(list.get(list.indexOf("darth : 200") - 1)).isEqualTo(p2);
assertThat(list.contains("darth : 200")).isTrue();
assertThat(list.get(list.indexOf("yoda : 300") - 1)).isEqualTo(p3);
assertThat(list.contains("yoda : 300")).isTrue();
assertThat(list.get(list.indexOf("luke : 300") - 1)).isEqualTo(p4);
assertThat(list.contains("luke : 300")).isTrue();
assertThat(list.get(list.indexOf("bobba : 300") - 1)).isEqualTo(p5);
assertThat(list.contains("bobba : 300")).isTrue();
} else {
assertThat(list.size()).isEqualTo(8);
assertThat(list.get(list.indexOf("darth : 100") - 1)).isEqualTo(p1);
assertThat(list.contains("darth : 100")).isTrue();
assertThat(list.get(list.indexOf("yoda : 300") - 1)).isEqualTo(p3);
assertThat(list.contains("yoda : 300")).isTrue();
assertThat(list.get(list.indexOf("luke : 300") - 1)).isEqualTo(p4);
assertThat(list.contains("luke : 300")).isTrue();
assertThat(list.get(list.indexOf("bobba : 300") - 1)).isEqualTo(p5);
assertThat(list.contains("bobba : 300")).isTrue();
}
} finally {
ksession.dispose();
}
}
@Test(timeout = 10000)
public void testQueriesWithNestedAccessorsAllOutputs() throws IOException, ClassNotFoundException {
String drl = "" +
"package org.drools.compiler.test \n" +
"import " + Person.class.getCanonicalName() + "\n" +
"global java.util.List list\n" +
"query peeps( String $name, String $likes, String $street ) \n" +
" Person( $name := name, $likes := likes, $street := address.street ) \n" +
"end\n";
drl += "rule x1\n" +
"when\n" +
" String( this == \"go1\" )\n" +
// output, output, ,output
" ?peeps($name1; $likes1 : $likes, $street1 : $street )\n" +
"then\n" +
" list.add( $name1 + \" : \" + $likes1 + \" : \" + $street1 );\n" +
"end \n";
final KieBase kbase = KieBaseUtil.getKieBaseFromKieModuleFromDrl("backward-chaining-test", kieBaseTestConfiguration, drl);
KieSession ksession = kbase.newKieSession();
try {
final List<String> list = new ArrayList<>();
ksession.setGlobal("list", list);
final Person p1 = new Person("darth",
"stilton",
100);
p1.setAddress(new Address("s1"));
final Person p2 = new Person("yoda",
"stilton",
300);
p2.setAddress(new Address("s2"));
ksession.insert(p1);
ksession.insert(p2);
ksession.insert("go1");
ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
ksession.fireAllRules();
assertThat(list.size()).isEqualTo(2);
assertThat(list.contains("darth : stilton : s1")).isTrue();
assertThat(list.contains("yoda : stilton : s2")).isTrue();
} finally {
ksession.dispose();
}
}
@Test(timeout = 10000)
public void testQueriesWithNestedAcecssorsMixedArgs() {
String drl = "" +
"package org.drools.compiler.test \n" +
"import " + Person.class.getCanonicalName() + "\n" +
"global java.util.List list\n" +
"query peeps( String $name, String $likes, String $street ) \n" +
" Person( $name := name, $likes := likes, $street := address.street ) \n" +
"end\n";
drl += "rule x1\n" +
"when\n" +
" $s : String()\n" +
// output, output, ,input
" ?peeps($name1; $likes1 : $likes, $street : $s )\n" +
"then\n" +
" list.add( $name1 + \" : \" + $likes1 + \" : \" + $s );\n" +
"end \n";
final KieBase kbase = KieBaseUtil.getKieBaseFromKieModuleFromDrl("backward-chaining-test", kieBaseTestConfiguration, drl);
final KieSession ksession = kbase.newKieSession();
try {
final List<String> list = new ArrayList<>();
ksession.setGlobal("list", list);
final Person p1 = new Person("darth",
"stilton",
100);
p1.setAddress(new Address("s1"));
final Person p2 = new Person("yoda",
"stilton",
300);
p2.setAddress(new Address("s2"));
ksession.insert(p1);
ksession.insert(p2);
ksession.insert("s1");
ksession.fireAllRules();
assertThat(list.size()).isEqualTo(1);
assertThat(list.contains("darth : stilton : s1")).isTrue();
list.clear();
ksession.insert("s2");
ksession.fireAllRules();
assertThat(list.size()).isEqualTo(1);
assertThat(list.contains("yoda : stilton : s2")).isTrue();
} finally {
ksession.dispose();
}
}
@Test(timeout = 10000)
public void testQueryWithDynamicData() throws IOException, ClassNotFoundException {
String drl = "" +
"package org.drools.compiler.test \n" +
"import " + Person.class.getCanonicalName() + "\n" +
"global java.util.List list\n" +
"query peeps( Person $p, String $name, String $likes, int $age ) \n" +
" $p := Person( ) from new Person( $name, $likes, $age ) \n" +
"end\n";
drl += "rule x1\n" +
"when\n" +
" $n1 : String( )\n" +
// output, input ,input ,input
" ?peeps($p; $name : $n1, $likes : \"stilton\", $age : 100 )\n" +
"then\n" +
" list.add( $p );\n" +
"end \n";
final KieBase kbase = KieBaseUtil.getKieBaseFromKieModuleFromDrl("backward-chaining-test", kieBaseTestConfiguration, drl);
KieSession ksession = kbase.newKieSession();
try {
final List<Person> list = new ArrayList<>();
ksession.setGlobal("list", list);
final Person p1 = new Person("darth",
"stilton",
100);
final Person p2 = new Person("yoda",
"stilton",
100);
ksession.insert("darth");
ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
ksession.fireAllRules();
assertThat(list.size()).isEqualTo(1);
assertThat(list.get(0)).isEqualTo(p1);
list.clear();
ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
ksession.insert("yoda");
ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
ksession.fireAllRules();
System.out.println(list);
assertThat(list.size()).isEqualTo(1);
assertThat(list.get(0)).isEqualTo(p2);
} finally {
ksession.dispose();
}
}
@Test(timeout = 10000)
public void testQueryWithDyanmicInsert() throws IOException, ClassNotFoundException {
String drl = "" +
"package org.drools.compiler.test \n" +
"import " + Person.class.getCanonicalName() + "\n" +
"global java.util.List list\n" +
"query peeps( Person $p, String $name, String $likes, int $age ) \n" +
" $p := Person( ) from new Person( $name, $likes, $age ) \n" +
"end\n";
drl += "rule x1\n" +
"when\n" +
" $n1 : String( )\n" +
" not Person( name == 'darth' )\n " +
// output, input ,input ,input
" ?peeps($p; $name : $n1, $likes : \"stilton\", $age : 100 )\n" +
"then\n" +
" insert( $p );\n" +
"end \n";
drl += "rule x2\n" +
"when\n" +
" $p : Person( )\n" +
"then\n" +
" list.add( $p );\n" +
"end \n";
final KieBase kbase = KieBaseUtil.getKieBaseFromKieModuleFromDrl("backward-chaining-test", kieBaseTestConfiguration, drl);
KieSession ksession = kbase.newKieSession();
try {
final List<Person> list = new ArrayList<>();
ksession.setGlobal("list", list);
final Person p1 = new Person("darth",
"stilton",
100);
ksession.insert("darth");
ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
ksession.fireAllRules();
ksession.insert("yoda"); // darth exists, so yoda won't get created
ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
ksession.fireAllRules();
assertThat(list.size()).isEqualTo(1);
assertThat(list.get(0)).isEqualTo(p1);
} finally {
ksession.dispose();
}
}
@Test(timeout = 10000)
public void testQueryWithOr() {
final String drl = "" +
"package org.drools.compiler.test \n" +
"import java.util.List\n" +
"import java.util.ArrayList\n" +
"import " + BackwardChainingTest.class.getName() + ".Q\n" +
"import " + BackwardChainingTest.class.getName() + ".R\n" +
"import " + BackwardChainingTest.class.getName() + ".S\n" +
"global List list\n" +
"dialect \"mvel\"\n" +
"\n" +
"query q(int x)\n" +
" Q( x := value )\n" +
"end\n" +
"\n" +
"query r(int x)\n" +
" R( x := value )\n" +
"end\n" +
"\n" +
"query s(int x)\n" +
" S( x := value ) \n" +
"end\n" +
"\n" +
"query p(int x)\n" +
" (?q(x;) and ?r(x;) ) \n" +
" or\n" +
" ?s(x;)\n" +
"end\n" +
"rule init when\n" +
"then\n" +
" insert( new Q(1) );\n " +
" insert( new Q(5) );\n " +
" insert( new Q(6) );\n " +
" insert( new R(1) );\n " +
" insert( new R(4) );\n " +
" insert( new R(6) );\n " +
" insert( new R(2) );\n " +
" insert( new S(2) );\n " +
" insert( new S(3) );\n " +
" insert( new S(6) );\n " +
"end\n" +
"";
final KieBase kbase = KieBaseUtil.getKieBaseFromKieModuleFromDrl("backward-chaining-test", kieBaseTestConfiguration, drl);
final KieSession ksession = kbase.newKieSession();
try {
final List<Integer> list = new ArrayList<>();
ksession.setGlobal("list", list);
ksession.fireAllRules();
QueryResults results;
list.clear();
results = ksession.getQueryResults("p", new Integer[]{0});
for (final QueryResultsRow result : results) {
list.add((Integer) result.get("x"));
}
assertThat(list.size()).isEqualTo(0);
list.clear();
results = ksession.getQueryResults("p", new Integer[]{1});
for (final QueryResultsRow result : results) {
list.add((Integer) result.get("x"));
}
assertThat(list.size()).isEqualTo(1);
assertThat(list.get(0).intValue()).isEqualTo(1);
list.clear();
results = ksession.getQueryResults("p", new Integer[]{2});
for (final QueryResultsRow result : results) {
list.add((Integer) result.get("x"));
}
assertThat(list.size()).isEqualTo(1);
assertThat(list.get(0).intValue()).isEqualTo(2);
list.clear();
results = ksession.getQueryResults("p", new Integer[]{3});
for (final QueryResultsRow result : results) {
list.add((Integer) result.get("x"));
}
assertThat(list.size()).isEqualTo(1);
assertThat(list.get(0).intValue()).isEqualTo(3);
list.clear();
results = ksession.getQueryResults("p", new Integer[]{4});
for (final QueryResultsRow result : results) {
list.add((Integer) result.get("x"));
}
assertThat(list.size()).isEqualTo(0);
list.clear();
results = ksession.getQueryResults("p", new Integer[]{5});
for (final QueryResultsRow result : results) {
list.add((Integer) result.get("x"));
}
assertThat(list.size()).isEqualTo(0);
list.clear();
results = ksession.getQueryResults("p", new Integer[]{6});
for (final QueryResultsRow result : results) {
list.add((Integer) result.get("x"));
}
assertThat(list.size()).isEqualTo(2);
assertThat(list.get(0).intValue()).isEqualTo(6);
assertThat(list.get(1).intValue()).isEqualTo(6);
} finally {
ksession.dispose();
}
}
@Test(timeout = 10000)
public void testGeneology() throws IOException, ClassNotFoundException {
// from http://kti.mff.cuni.cz/~bartak/prolog/genealogy.html
final String drl = "" +
"package org.drools.compiler.test2 \n" +
"global java.util.List list\n" +
"dialect \"mvel\"\n" +
"query man( String name ) \n" +
" " + BackwardChainingTest.class.getName() + ".Man( name := name ) \n" +
"end\n" +
"query woman( String name ) \n" +
" " + BackwardChainingTest.class.getName() + ".Woman( name := name ) \n" +
"end\n" +
"query parent( String parent, String child ) \n" +
" " + BackwardChainingTest.class.getName() + ".Parent( parent := parent, child := child ) \n" +
"end\n" +
"query father( String father, String child ) \n" +
" ?man( father; ) \n" +
" ?parent( father, child; ) \n" +
"end\n" +
"query mother( String mother, String child ) \n" +
" ?woman( mother; ) \n" +
" ?parent( mother, child; ) \n" +
"end\n" +
"query son( String son, String parent ) \n" +
" ?man( son; ) \n" +
" ?parent( parent, son; ) \n" +
"end\n" +
"query daughter( String daughter, String parent ) \n" +
" ?woman( daughter; ) \n" +
" ?parent( parent, daughter; ) \n" +
"end\n" +
"query siblings( String c1, String c2 ) \n" +
" ?parent( $p, c1; ) \n" +
" ?parent( $p, c2; ) \n" +
" eval( !c1.equals( c2 ) )\n" +
"end\n" +
"query fullSiblings( String c1, String c2 )\n" +
" ?parent( $p1, c1; ) ?parent( $p1, c2; )\n" +
" ?parent( $p2, c1; ) ?parent( $p2, c2; )\n" +
" eval( !c1.equals( c2 ) && !$p1.equals( $p2 ) )\n" +
"end\n" +
"query fullSiblings2( String c1, String c2 )\n" +
" ?father( $p1, c1; ) ?father( $p1, c2; )\n" +
" ?mother( $p2, c1; ) ?mother( $p2, c2; )\n" +
" eval( !c1.equals( c2 ) )\n" +
"end\n" +
"query uncle( String uncle, String n )\n" +
" ?man( uncle; ) ?siblings( uncle, parent; )\n" +
" ?parent( parent, n; )\n " +
"end\n" +
"query aunt( String aunt, String n )\n" +
" ?woman( aunt; ) ?siblings( aunt, parent; )\n" +
" ?parent( parent, n; )\n " +
"end\n" +
"query grantParents( String gp, String gc )\n" +
" ?parent( gp, p; ) ?parent( p, gc; )\n" +
"end\n";
final KieBase kbase = KieBaseUtil.getKieBaseFromKieModuleFromDrl("backward-chaining-test", kieBaseTestConfiguration, drl);
KieSession ksession = kbase.newKieSession();
try {
final List<String> list = new ArrayList<>();
ksession.setGlobal("list", list);
// grand parents
ksession.insert(new Man("john"));
ksession.insert(new Woman("janet"));
// parent
ksession.insert(new Man("adam"));
ksession.insert(new Parent("john",
"adam"));
ksession.insert(new Parent("janet",
"adam"));
ksession.insert(new Man("stan"));
ksession.insert(new Parent("john",
"stan"));
ksession.insert(new Parent("janet",
"stan"));
// grand parents
ksession.insert(new Man("carl"));
ksession.insert(new Woman("tina"));
//
// parent
ksession.insert(new Woman("eve"));
ksession.insert(new Parent("carl",
"eve"));
ksession.insert(new Parent("tina",
"eve"));
//
// parent
ksession.insert(new Woman("mary"));
ksession.insert(new Parent("carl",
"mary"));
ksession.insert(new Parent("tina",
"mary"));
ksession.insert(new Man("peter"));
ksession.insert(new Parent("adam",
"peter"));
ksession.insert(new Parent("eve",
"peter"));
ksession.insert(new Man("paul"));
ksession.insert(new Parent("adam",
"paul"));
ksession.insert(new Parent("mary",
"paul"));
ksession.insert(new Woman("jill"));
ksession.insert(new Parent("adam",
"jill"));
ksession.insert(new Parent("eve",
"jill"));
QueryResults results;
ksession = SerializationHelper.getSerialisedStatefulKnowledgeSession(ksession, true);
list.clear();
results = ksession.getQueryResults("woman", v);
for (final QueryResultsRow result : results) {
list.add((String) result.get("name"));
}
assertThat(list.size()).isEqualTo(5);
assertContains(new String[]{"janet", "mary", "tina", "eve", "jill"}, list);
list.clear();
results = ksession.getQueryResults("man", v);
for (final QueryResultsRow result : results) {
list.add((String) result.get("name"));
}
assertThat(list.size()).isEqualTo(6);
assertContains(new String[]{"stan", "john", "peter", "carl", "adam", "paul"}, list);
list.clear();
results = ksession.getQueryResults("father", v, v);
for (final QueryResultsRow result : results) {
list.add(result.get("father") + ", " + result.get("child"));
}
assertThat(list.size()).isEqualTo(7);
assertContains(new String[]{"john, adam", "john, stan",
"carl, eve", "carl, mary",
"adam, peter", "adam, paul",
"adam, jill"}, list);
list.clear();
results = ksession.getQueryResults("mother", v, v);
for (final QueryResultsRow result : results) {
list.add(result.get("mother") + ", " + result.get("child"));
}
assertThat(list.size()).isEqualTo(7);
assertContains(new String[]{"janet, adam", "janet, stan",
"mary, paul", "tina, eve",
"tina, mary", "eve, peter",
"eve, jill"},
list);
list.clear();
results = ksession.getQueryResults("son",
v, v);
for (final QueryResultsRow result : results) {
list.add(result.get("son") + ", " + result.get("parent"));
}
assertThat(list.size()).isEqualTo(8);
assertContains(new String[]{"stan, john", "stan, janet",
"peter, adam", "peter, eve",
"adam, john", "adam, janet",
"paul, mary", "paul, adam"}, list);
list.clear();
results = ksession.getQueryResults("daughter", v, v);
for (final QueryResultsRow result : results) {
list.add(result.get("daughter") + ", " + result.get("parent"));
}
assertThat(list.size()).isEqualTo(6);
assertContains(new String[]{"mary, carl", "mary, tina",
"eve, carl", "eve, tina",
"jill, adam", "jill, eve"}, list);
list.clear();
results = ksession.getQueryResults("siblings", v, v);
for (final QueryResultsRow result : results) {
list.add(result.get("c1") + ", " + result.get("c2"));
}
assertThat(list.size()).isEqualTo(16);
assertContains(new String[]{"eve, mary", "mary, eve",
"adam, stan", "stan, adam",
"adam, stan", "stan, adam",
"peter, paul", "peter, jill",
"paul, peter", "paul, jill",
"jill, peter", "jill, paul",
"peter, jill", "jill, peter",
"eve, mary", "mary, eve"}, list);
list.clear();
results = ksession.getQueryResults("parent", v, v);
for (final QueryResultsRow result : results) {
list.add(result.get("parent") + ":" + result.get("child"));
}
System.out.println(list);
// "query fullSiblings( String c1, String c2 )\n" +
// " ?parent( $p1, c1; ) ?parent( $p1, c2; )\n" +
// " ?parent( $p2, c1; ) ?parent( $p2, c2; )\n" +
// " eval( !c1.equals( c2 ) && !$p1.equals( $p2 ) )\n" +
// "end\n" +
list.clear();
results = ksession.getQueryResults("fullSiblings", v, v);
for (final QueryResultsRow result : results) {
list.add(result.get("c1") + ", " + result.get("c2"));
}
System.out.println(list);
assertThat(list.size()).isEqualTo(12);
assertContains(new String[]{"eve, mary", "mary, eve",
"adam, stan", "stan, adam",
"adam, stan", "stan, adam",
"peter, jill", "jill, peter",
"peter, jill", "jill, peter",
"eve, mary", "mary, eve"}, list);
list.clear();
results = ksession.getQueryResults("fullSiblings", v, v);
for (final QueryResultsRow result : results) {
list.add(result.get("c1") + ", " + result.get("c2"));
}
assertThat(list.size()).isEqualTo(12);
assertContains(new String[]{"eve, mary", "mary, eve",
"adam, stan", "stan, adam",
"adam, stan", "stan, adam",
"peter, jill", "jill, peter",
"peter, jill", "jill, peter",
"eve, mary", "mary, eve"}, list);
list.clear();
results = ksession.getQueryResults("uncle", v, v);
for (final QueryResultsRow result : results) {
list.add(result.get("uncle") + ", " + result.get("n"));
}
assertThat(list.size()).isEqualTo(6);
assertContains(new String[]{"stan, peter",
"stan, paul",
"stan, jill",
"stan, peter",
"stan, paul",
"stan, jill"}, list);
list.clear();
results = ksession.getQueryResults("aunt", v, v);
for (final QueryResultsRow result : results) {
list.add(result.get("aunt") + ", " + result.get("n"));
}
assertThat(list.size()).isEqualTo(6);
assertContains(new String[]{"mary, peter",
"mary, jill",
"mary, peter",
"mary, jill",
"eve, paul",
"eve, paul"}, list);
list.clear();
results = ksession.getQueryResults("grantParents", v, v);
for (final QueryResultsRow result : results) {
list.add(result.get("gp") + ", " + result.get("gc"));
}
assertThat(list.size()).isEqualTo(12);
assertContains(new String[]{"carl, peter",
"carl, jill",
"carl, paul",
"john, peter",
"john, paul",
"john, jill",
"janet, peter",
"janet, paul",
"janet, jill",
"tina, peter",
"tina, jill",
"tina, paul",}, list);
} finally {
ksession.dispose();
}
}
@Test(timeout = 10000)
public void testDynamicRulesWithSharing() {
String drl = "" +
"package org.drools.compiler.test1 \n" +
"\n" +
"declare Location\n" +
" thing : String \n" +
" location : String \n" +
"end" +
"\n" +
"declare Edible\n" +
" thing : String\n" +
"end" +
"\n" +
"query whereFood( String x, String y ) \n" +
" Location(x, y;) Edible(x;) \n" +
"end\n" +
"\n" +
"rule init when\n" +
"then\n" +
" \n" +
" insert( new Location(\"apple\", \"kitchen\") );\n" +
" insert( new Location(\"crackers\", \"kitchen\") );\n" +
" insert( new Location(\"broccoli\", \"kitchen\") );\n" +
" insert( new Location(\"computer\", \"office\") );\n" +
" insert( new Edible(\"apple\") );\n" +
" insert( new Edible(\"crackers\") );\n" +
"end\n" +
"";
final KieBase kieBase = KieBaseUtil.getKieBaseFromKieModuleFromDrl("backward-chaining-test", kieBaseTestConfiguration);
final KnowledgeBuilder knowledgeBuilder = TestUtil.createKnowledgeBuilder(kieBase, drl);
drl = "" +
"package org.drools.compiler.test2 \n" +
"import org.drools.compiler.test1.*\n" +
"import java.util.List\n" +
"import java.util.ArrayList\n" +
"import java.util.Map\n" +
"import java.util.HashMap\n" +
"global List list\n" +
"\n" +
"rule look2 when\n" +
" $place : String() // just here to give a OTN lookup point\n" +
" whereFood(thing, $place;)\n" +
"then\n" +
" list.add( \"2:\" + thing );\n" +
"end\n";
knowledgeBuilder.add(ResourceFactory.newByteArrayResource(drl.getBytes()), ResourceType.DRL);
if (knowledgeBuilder.hasErrors()) {
fail(knowledgeBuilder.getErrors().toString());
}
drl = "" +
"package org.drools.compiler.test3 \n" +
"import org.drools.compiler.test1.*\n" +
"import java.util.List\n" +
"import java.util.ArrayList\n" +
"import java.util.Map\n" +
"import java.util.HashMap\n" +
"global List list\n" +
"\n" +
"rule look3 when\n" +
" $place : String() // just here to give a OTN lookup point\n" +
" whereFood(thing, $place;)\n" +
"then\n" +
" list.add( \"3:\" + thing );\n" +
"end\n";
knowledgeBuilder.add(ResourceFactory.newByteArrayResource(drl.getBytes()), ResourceType.DRL);
if (knowledgeBuilder.hasErrors()) {
fail(knowledgeBuilder.getErrors().toString());
}
drl = "" +
"package org.drools.compiler.test4 \n" +
"import org.drools.compiler.test1.*\n" +
"import java.util.List\n" +
"import java.util.ArrayList\n" +
"import java.util.Map\n" +
"import java.util.HashMap\n" +
"global List list\n" +
"\n" +
"rule look4 when\n" +
" $place : String() // just here to give a OTN lookup point\n" +
" whereFood(thing, $place;)\n" +
"then\n" +
" list.add( \"4:\" + thing );\n" +
"end\n";
knowledgeBuilder.add(ResourceFactory.newByteArrayResource(drl.getBytes()), ResourceType.DRL);
if (knowledgeBuilder.hasErrors()) {
fail(knowledgeBuilder.getErrors().toString());
}
final Map<String, KiePackage> pkgs = new HashMap<>();
for (final KiePackage pkg : knowledgeBuilder.getKnowledgePackages()) {
pkgs.put(pkg.getName(), pkg);
}
final InternalKnowledgeBase kbase =
(InternalKnowledgeBase) KieBaseUtil.getKieBaseFromKieModuleFromDrl("backward-chaining-test", kieBaseTestConfiguration);
kbase.addPackages(Arrays.asList(pkgs.get("org.drools.compiler.test1"), pkgs.get("org.drools.compiler.test2")));
final KieSession ksession = kbase.newKieSession();
try {
final List<Map<String, Object>> list = new ArrayList<>();
ksession.setGlobal("list", list);
ksession.insert("kitchen");
ksession.fireAllRules();
assertThat(list.size()).isEqualTo(2);
assertContains(new String[]{"2:crackers", "2:apple"}, list);
list.clear();
kbase.addPackages(Collections.singletonList(pkgs.get("org.drools.compiler.test3")));
ksession.fireAllRules();
assertThat(list.size()).isEqualTo(2);
assertContains(new String[]{"3:crackers", "3:apple"}, list);
list.clear();
kbase.addPackages(Collections.singletonList(pkgs.get("org.drools.compiler.test4")));
ksession.fireAllRules();
assertThat(list.size()).isEqualTo(2);
assertContains(new String[]{"4:crackers", "4:apple"}, list);
} finally {
ksession.dispose();
}
}
@Test(timeout = 10000)
public void testOpenBackwardChain() {
// http://www.amzi.com/AdventureInProlog/advtop.php
final String drl = "" +
"package org.drools.compiler.test \n" +
"import java.util.List\n" +
"import java.util.ArrayList\n" +
"import " + Person.class.getCanonicalName() + "\n" +
"global List list\n" +
"dialect \"mvel\"\n" +
"declare Location\n" +
" thing : String \n" +
" location : String \n" +
"end" +
"\n" +
"query isContainedIn( String x, String y ) \n" +
" Location(x, y;)\n" +
" or \n" +
" ( Location(z, y;) and isContainedIn(x, z;) )\n" +
"end\n" +
"\n" +
"rule look when \n" +
" Person( $l : likes ) \n" +
" isContainedIn( $l, 'office'; )\n" +
"then\n" +
" insertLogical( 'blah' );" +
"end\n" +
"rule existsBlah when \n" +
" exists String( this == 'blah') \n" +
"then\n" +
" list.add( 'exists blah' );" +
"end\n" +
"\n" +
"rule notBlah when \n" +
" not String( this == 'blah') \n" +
"then\n" +
" list.add( 'not blah' );" +
"end\n" +
"\n" +
"rule init when\n" +
"then\n" +
" insert( new Location(\"desk\", \"office\") );\n" +
" insert( new Location(\"envelope\", \"desk\") );\n" +
" insert( new Location(\"key\", \"envelope\") );\n" +
"end\n" +
"\n" +
"rule go1 when \n" +
" String( this == 'go1') \n" +
"then\n" +
" list.add( drools.getRule().getName() ); \n" +
" insert( new Location('lamp', 'desk') );\n" +