package org.drools.compiler.integrationtests;
import org.drools.compiler.CommonTestMethodBase;
import org.drools.compiler.Mailbox;
import org.drools.compiler.Mailbox.FolderType;
import org.drools.compiler.Message;
import org.drools.core.io.impl.ByteArrayResource;
import org.junit.Assert;
import org.junit.Test;
import org.kie.api.io.ResourceType;
import org.kie.internal.KnowledgeBase;
import org.kie.internal.builder.KnowledgeBuilder;
import org.kie.internal.builder.KnowledgeBuilderFactory;
import org.kie.internal.runtime.StatefulKnowledgeSession;
/**
* This is a sample class to launch a rule.
*/
public class ExpressionConstraintsTest extends CommonTestMethodBase {
@Test
public void testExpressionConstraints1() {
String drl = "package org.drools.compiler.integrationtests\n" +
"import " + Mailbox.FolderType.class.getCanonicalName() + ";\n" +
"import " + Mailbox.class.getCanonicalName() + ";\n" +
"rule R1\n" +
" dialect \"mvel\"\n" +
" when\n" +
" $m : Mailbox( \n" +
" $folderType : getDefaultFolderType(),\n" +
" FolderType.INBOX == $folderType,\n" +
" $folderType == FolderType.INBOX,\n" +
" $mailForFolder2 : getMailTypeForFolderType(getDefaultFolderType()),\n" +
" FolderType.SENT != getDefaultFolderType(), \n" +
" getDefaultFolderType() != FolderType.SENT, \n" +
" getMailTypeForFolderType($folderType) == MailType.WORK,\n" +
" 1 > 0\n" +
" )\n" +
" then\n" +
"end\n";
KnowledgeBase kbase = loadKnowledgeBaseFromString( drl );
StatefulKnowledgeSession ksession = createKnowledgeSession(kbase);
Mailbox mbox = new Mailbox(Mailbox.TEST_EMAIL);
Message message = new Message();
message.setMessage("Welcome");
message.setStatus(Message.HELLO);
mbox.getFolder(FolderType.INBOX).add(message);
ksession.insert(mbox);
ksession.insert(message);
int rules = ksession.fireAllRules();
Assert.assertEquals( 1, rules );
}
@Test
public void testExpressionConstraints2() {
String drl = "package org.drools.compiler.integrationtests\n" +
"import " + Mailbox.FolderType.class.getCanonicalName() + ";\n" +
"import " + Mailbox.class.getCanonicalName() + ";\n" +
"rule R1\n" +
" dialect \"mvel\"\n" +
" when\n" +
" $m : Mailbox( \n" +
" $me : owneremail,\n" +
" recentContacts[Mailbox.TEST_EMAIL] != null,\n" +
" recentContacts[\"me@test.com\"] != null,\n" +
" $d1 : recentContacts[Mailbox.TEST_EMAIL],\n" +
" $d2 : recentContacts[\"me@test.com\"],\n" +
" recentContacts.get(owneremail) != null,\n" +
" recentContacts.get($me) != null,\n" +
" recentContacts[$me] != null,\n" +
" $d3: recentContacts.get(owneremail),\n" +
" // Waiting for MVEL fixes for the following 2 scenarios" +
" // recentContacts[owneremail] != null,\n" +
" // recentContacts[getOwneremail()] != null,\n" +
" 0 < 1\n" +
" )\n" +
" then\n" +
"end\n";
KnowledgeBase kbase = loadKnowledgeBaseFromString( drl );
StatefulKnowledgeSession ksession = createKnowledgeSession(kbase);
Mailbox mbox = new Mailbox(Mailbox.TEST_EMAIL);
Message message = new Message();
message.setMessage("Welcome");
message.setStatus(Message.HELLO);
mbox.getFolder(FolderType.INBOX).add(message);
ksession.insert(mbox);
ksession.insert(message);
int rules = ksession.fireAllRules();
Assert.assertEquals( 1, rules );
}
@Test
public void testExpressionConstraints3() {
String drl = "package org.drools.compiler.integrationtests\n" +
"import " + Mailbox.FolderType.class.getCanonicalName() + ";\n" +
"import " + Mailbox.class.getCanonicalName() + ";\n" +
"rule R1\n" +
" dialect \"mvel\"\n" +
" when\n" +
" $m : Mailbox( \n" +
" $type1 : FolderType.INBOX,\n" +
" $type2 : org.drools.compiler.Mailbox$FolderType.INBOX,\n" +
" $work1 : getFolder(null),\n" +
" $work2 : getFolder(org.drools.compiler.Mailbox$FolderType.INBOX),\n" +
" $work3 : getFolder(FolderType.INBOX),\n" +
" getFolder($type1) != null,\n" +
" getFolder($type1).size() > 0,\n" +
" ! getFolder($type1).isEmpty(),\n" +
" $work6 : folders,\n" +
" $work7 : folders.size,\n" +
" //folders.containsKey(FolderType.INBOX),\n" +
" folders.containsKey(org.drools.compiler.Mailbox$FolderType.INBOX),\n" +
" folders.containsKey($type2),\n" +
" !folders.isEmpty,\n" +
" getFolder(FolderType.INBOX) != null,\n" +
" //$v1 : folders[FolderType.INBOX], \n" +
" //$v2 : folders[com.sample.Mailbox.FolderType.INBOX],\n" +
" //$v3 : folders[com.sample.Mailbox$FolderType.INBOX],\n" +
" //folders[$type1]!=null,\n" +
" //folders.get(FolderType.INBOX)!=null, // sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl cannot be cast to java.lang.Class\n" +
" //folders.isEmpty(), // SAME ERROR\n" +
" 0 < 1\n" +
" )\n" +
" then\n" +
"end";
KnowledgeBase kbase = loadKnowledgeBaseFromString( drl );
StatefulKnowledgeSession ksession = createKnowledgeSession(kbase);
Mailbox mbox = new Mailbox(Mailbox.TEST_EMAIL);
Message message = new Message();
message.setMessage("Welcome");
message.setStatus(Message.HELLO);
mbox.getFolder(FolderType.INBOX).add(message);
ksession.insert(mbox);
ksession.insert(message);
int rules = ksession.fireAllRules();
Assert.assertEquals( 1, rules );
}
@Test
public void testExpressionConstraints4() {
String drl = "package org.drools.compiler.integrationtests\n" +
"import " + Mailbox.FolderType.class.getCanonicalName() + ";\n" +
"import " + Mailbox.class.getCanonicalName() + ";\n" +
"rule R1\n" +
" dialect \"mvel\"\n" +
" when\n" +
" Mailbox( owneremail == 'bob@mail' || owneremail == 'john@mail' )\n" +
" then\n" +
"end\n" +
"rule R2\n" +
" dialect \"mvel\"\n" +
" when\n" +
" Mailbox( ( owneremail == 'bob@mail' ) || ( owneremail == 'john@mail' ) )\n" +
" then\n" +
"end\n";
KnowledgeBase kbase = loadKnowledgeBaseFromString( drl );
StatefulKnowledgeSession ksession = createKnowledgeSession(kbase);
ksession.insert(new Mailbox("foo@mail"));
int rules = ksession.fireAllRules();
Assert.assertEquals( 0, rules );
ksession.insert(new Mailbox("john@mail"));
rules = ksession.fireAllRules();
Assert.assertEquals( 2, rules );
}
@Test
public void testDeeplyNestedCompactExpressions() {
String drl = "package org.drools\n" +
"rule R1\n" +
" when\n" +
" Person( age > 10 && ( < 20 || > 30 ) )\n" +
// nested () are not supported with compact constraints.
// workaround : use field names explicitly:
//" Person( age > 10 && ( age < 20 || age > 30 ) )\n" +
" then\n" +
"end\n";
KnowledgeBuilder knowledgeBuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
knowledgeBuilder.add( new ByteArrayResource( drl.getBytes() ), ResourceType.DRL );
assertTrue( knowledgeBuilder.hasErrors() );
}
}