/*
* Copyright 2015 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
*
* 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 org.drools.core.common.InternalWorkingMemory;
import org.drools.core.common.Memory;
import org.drools.core.impl.KnowledgeBaseImpl;
import org.drools.core.reteoo.LeftInputAdapterNode;
import org.drools.core.reteoo.LeftTupleSink;
import org.drools.core.reteoo.ObjectTypeNode;
import org.drools.core.reteoo.QueryElementNode;
import org.drools.core.reteoo.Rete;
import org.junit.Test;
import org.kie.api.KieBase;
import org.kie.api.io.ResourceType;
import org.kie.api.runtime.KieSession;
import org.kie.api.runtime.rule.FactHandle;
import org.kie.internal.utils.KieHelper;
import java.util.ArrayList;
import java.util.List;
import static java.util.Arrays.asList;
import static org.junit.Assert.*;
public class PassiveQueryTest {
@Test
public void testPassiveQuery() throws Exception {
String str =
"global java.util.List list\n" +
"query Q (Integer i)\n" +
" String( this == i.toString() )\n" +
"end\n" +
"rule R when\n" +
" $i : Integer()\n" +
" ?Q( $i; )\n" +
"then\n" +
" list.add( $i );\n" +
"end\n";
KieSession ksession = new KieHelper()
.addContent(str, ResourceType.DRL)
.build()
.newKieSession();
List<Integer> list = new ArrayList<Integer>();
ksession.setGlobal("list", list);
ksession.insert(1);
ksession.insert("2");
ksession.fireAllRules();
assertEquals(0, list.size());
ksession.insert("1");
ksession.fireAllRules();
assertEquals(0, list.size());
ksession.insert(2);
ksession.fireAllRules();
assertEquals(1, list.size());
assertEquals(2, (int)list.get(0));
}
@Test
public void testPassiveQueryNoDataDriven() throws Exception {
String str =
"global java.util.List list\n" +
"query Q (Integer i)\n" +
" String( this == i.toString() )\n" +
"end\n" +
"rule R when\n" +
" $i : Integer()\n" +
" ?Q( $i; )\n" +
"then\n" +
" list.add( $i );\n" +
"end\n";
KieSession ksession = new KieHelper()
.addContent(str, ResourceType.DRL)
.build()
.newKieSession();
List<Integer> list = new ArrayList<Integer>();
ksession.setGlobal("list", list);
ksession.insert(1);
ksession.insert("1");
ksession.fireAllRules();
assertEquals(1, list.size());
}
@Test
public void testPassiveQueryDataDriven() throws Exception {
String str =
"global java.util.List list\n" +
"query Q (Integer i)\n" +
" String( this == i.toString() )\n" +
"end\n" +
"rule R @Propagation(IMMEDIATE) when\n" +
" $i : Integer()\n" +
" ?Q( $i; )\n" +
"then\n" +
" list.add( $i );\n" +
"end\n";
KieSession ksession = new KieHelper()
.addContent(str, ResourceType.DRL)
.build()
.newKieSession();
List<Integer> list = new ArrayList<Integer>();
ksession.setGlobal("list", list);
ksession.insert(1);
ksession.insert("1");
ksession.fireAllRules();
assertEquals(0, list.size());
}
@Test
public void testReactiveQueryDataDriven() throws Exception {
String str =
"global java.util.List list\n" +
"query Q (Integer i)\n" +
" String( this == i.toString() )\n" +
"end\n" +
"rule R @Propagation(IMMEDIATE) when\n" +
" $i : Integer()\n" +
" Q( $i; )\n" +
"then\n" +
" list.add( $i );\n" +
"end\n";
KieSession ksession = new KieHelper()
.addContent(str, ResourceType.DRL)
.build()
.newKieSession();
List<Integer> list = new ArrayList<Integer>();
ksession.setGlobal("list", list);
ksession.insert(1);
ksession.insert("1");
ksession.fireAllRules();
assertEquals(1, list.size());
}
@Test
public void testPassiveQueryDataDrivenWithBeta() throws Exception {
String str =
"global java.util.List list\n" +
"query Q (Integer i)\n" +
" String( this == i.toString() )\n" +
"end\n" +
"rule R @Propagation(IMMEDIATE) when\n" +
" $i : Integer()\n" +
" $j : Integer( this == $i+1 )\n" +
" ?Q( $j; )\n" +
"then\n" +
" list.add( $j );\n" +
"end\n";
KieSession ksession = new KieHelper()
.addContent(str, ResourceType.DRL)
.build()
.newKieSession();
List<Integer> list = new ArrayList<Integer>();
ksession.setGlobal("list", list);
ksession.insert(1);
ksession.insert(2);
ksession.insert("2");
ksession.fireAllRules();
assertEquals(0, list.size());
}
@Test
public void testPassiveQueryNodeSharing() throws Exception {
String str =
"global java.util.List list\n" +
"query Q (Integer i)\n" +
" String( this == i.toString() )\n" +
"end\n" +
"rule R1 @Propagation(IMMEDIATE) when\n" +
" $i : Integer()\n" +
" ?Q( $i; )\n" +
"then\n" +
" list.add( \"R1\" );\n" +
"end\n" +
"rule R2 when\n" +
" $i : Integer()\n" +
" ?Q( $i; )\n" +
"then\n" +
" list.add( \"R2\" );\n" +
"end\n";
KieSession ksession = new KieHelper()
.addContent(str, ResourceType.DRL)
.build()
.newKieSession();
List<String> list = new ArrayList<String>();
ksession.setGlobal("list", list);
ksession.insert(1);
ksession.insert("1");
ksession.fireAllRules();
assertEquals(1, list.size());
assertEquals("R2", list.get(0));
}
@Test
public void testPassiveQueryNodeSharing2() throws Exception {
String str =
"global java.util.List list\n" +
"query Q (Integer i)\n" +
" String( this == i.toString() )\n" +
"end\n" +
"rule R1a @Propagation(IMMEDIATE) when\n" +
" $i : Integer()\n" +
" ?Q( $i; )\n" +
"then\n" +
" list.add( \"R1a\" );\n" +
"end\n" +
"rule R1b @Propagation(IMMEDIATE) when\n" +
" Long( $i : intValue )\n" +
" ?Q( $i; )\n" +
"then\n" +
" list.add( \"R1b\" );\n" +
"end\n" +
"rule R2a when\n" +
" $i : Integer()\n" +
" ?Q( $i; )\n" +
"then\n" +
" list.add( \"R2a\" );\n" +
"end\n" +
"rule R2b when\n" +
" Long( $i : intValue )\n" +
" ?Q( $i; )\n" +
"then\n" +
" list.add( \"R2b\" );\n" +
"end\n";
KieSession ksession = new KieHelper()
.addContent(str, ResourceType.DRL)
.build()
.newKieSession();
List<String> list = new ArrayList<String>();
ksession.setGlobal("list", list);
ksession.insert(1);
ksession.insert(1L);
ksession.insert("1");
ksession.fireAllRules();
assertEquals(2, list.size());
assertTrue(list.containsAll(asList("R2a", "R2b")));
}
@Test
public void testPassiveQueryUsingSegmentPropagator() throws Exception {
String str =
"global java.util.List list\n" +
"query Q (Integer i)\n" +
" String( this == i.toString() )\n" +
"end\n" +
"rule R1a @Propagation(IMMEDIATE) when\n" +
" $i : Integer()\n" +
" ?Q( $i; )\n" +
"then\n" +
" list.add( \"R1a\" );\n" +
"end\n" +
"rule R1b @Propagation(IMMEDIATE) when\n" +
" $i : Integer()\n" +
" ?Q( $i; )\n" +
" Long( intValue == $i )\n" +
"then\n" +
" list.add( \"R1b\" );\n" +
"end\n" +
"rule R2 when\n" +
" $i : Integer()\n" +
" ?Q( $i; )\n" +
"then\n" +
" list.add( \"R2\" );\n" +
"end\n";
KieBase kbase = new KieHelper()
.addContent(str, ResourceType.DRL)
.build();
KieSession ksession = kbase.newKieSession();
List<String> list = new ArrayList<String>();
ksession.setGlobal("list", list);
ksession.insert(1L);
FactHandle fh = ksession.insert(1);
ksession.insert("1");
Rete rete = ((KnowledgeBaseImpl)kbase).getRete();
LeftInputAdapterNode lia = null;
for (ObjectTypeNode otn : rete.getObjectTypeNodes()) {
if ( Integer.class == otn.getObjectType().getValueType().getClassType() ) {
lia = (LeftInputAdapterNode)otn.getObjectSinkPropagator().getSinks()[0];
break;
}
}
LeftTupleSink[] sinks = lia.getSinkPropagator().getSinks();
QueryElementNode q1 = (QueryElementNode)sinks[0];
QueryElementNode q2 = (QueryElementNode)sinks[1];
InternalWorkingMemory wm = (InternalWorkingMemory)ksession;
wm.flushPropagations();
Memory memory1 = wm.getNodeMemory(q1);
assertTrue(memory1.getSegmentMemory().getStagedLeftTuples().isEmpty());
ksession.fireAllRules();
assertEquals(1, list.size());
assertEquals("R2", list.get(0));
list.clear();
ksession.delete(fh);
ksession.insert(1);
ksession.fireAllRules();
assertEquals(3, list.size());
}
}