Examples with KieSession org.kie.api.runtime.KieSession used on opensource projects

Example 56 with KieSession

use of org.kie.api.runtime.KieSession in project drools by kiegroup.

the class TruthMaintenanceTest method testTMSwithQueries.

@Test(timeout = 10000)
public void testTMSwithQueries() {
    String str = "" + "package org.drools.compiler.test;\n" + "\n" + "global java.util.List list; \n" + "\n" + "declare Bean\n" + "    str : String\n" + "end\n" + "\n" + "query bean ( String $s )\n" + "    Bean(  $s ; )\n" + "end\n" + "\n" + "\n" + "rule \"init\"\n" + "when\n" + "then\n" + "    insert( new Bean(\"AAA\") );\n" + "    insert( \"x\" );\n" + "end\n" + "\n" + "rule \"LogicIn\"\n" + "when\n" + "    String( this == \"x\" )\n" + "    ?bean(  \"AAA\" ; )\n" + "then\n" + "    insertLogical(\"y\");\n" + "    retract(\"x\");\n" + "end " + "\n" + "rule \"Never\"\n" + "salience -999\n" + "when\n" + "    $s : String( this == \"y\" )\n" + "then\n" + "    list.add($s);\n" + "end";
    KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    kbuilder.add(ResourceFactory.newByteArrayResource(str.getBytes()), ResourceType.DRL);
    InternalKnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    kbase.addPackages(kbuilder.getKnowledgePackages());
    KieSession kSession = createKnowledgeSession(kbase);
    List list = new ArrayList();
    kSession.setGlobal("list", list);
    kSession.fireAllRules();
    assertEquals(0, list.size());
// System.err.println(reportWMObjects(kSession));
}

Example 57 with KieSession

use of org.kie.api.runtime.KieSession in project drools by kiegroup.

the class TypeDeclarationTest method testCircularDeclaration.

@Test
public void testCircularDeclaration() throws Exception {
    String rule = "package org.drools.compiler.test\n" + "declare FactA\n" + "    fieldB: FactB\n" + "end\n" + "declare FactB\n" + "    fieldA: FactA\n" + "end\n" + "rule R1 when\n" + "   $fieldA : FactA( $fieldB : fieldB )\n" + "   FactB( this == $fieldB, fieldA == $fieldA )\n" + "then\n" + "end";
    KieBase kbase = new KieHelper().addContent(rule, ResourceType.DRL).build();
    KieSession ksession = kbase.newKieSession();
    FactType aType = kbase.getFactType("org.drools.compiler.test", "FactA");
    Object a = aType.newInstance();
    FactType bType = kbase.getFactType("org.drools.compiler.test", "FactB");
    Object b = bType.newInstance();
    aType.set(a, "fieldB", b);
    bType.set(b, "fieldA", a);
    ksession.insert(a);
    ksession.insert(b);
    int rules = ksession.fireAllRules();
    assertEquals(1, rules);
}

Example 58 with KieSession

use of org.kie.api.runtime.KieSession in project drools by kiegroup.

the class TypeDeclarationTest method testCircularDeclarationWithExtension.

@Test
public void testCircularDeclarationWithExtension() throws Exception {
    // DROOLS-640
    String drl = "package org.drools.compiler.test\n" + "declare FactA\n" + "    fieldB: FactB\n" + "end\n" + "declare FactB extends FactA end\n" + "rule R1 when\n" + "   $a : FactA( )\n" + "   $b : FactB( this == $a.fieldB )\n" + "then\n" + "end";
    KieBase kbase = new KieHelper().addContent(drl, ResourceType.DRL).build();
    KieSession ksession = kbase.newKieSession();
    FactType aType = kbase.getFactType("org.drools.compiler.test", "FactA");
    FactType bType = kbase.getFactType("org.drools.compiler.test", "FactB");
    Object a = aType.newInstance();
    Object b = bType.newInstance();
    aType.set(a, "fieldB", b);
    ksession.insert(a);
    ksession.insert(b);
    int rules = ksession.fireAllRules();
    assertEquals(1, rules);
}

Example 59 with KieSession

use of org.kie.api.runtime.KieSession in project drools by kiegroup.

the class TypeDeclarationTest method testRecursiveDeclaration.

@Test
public void testRecursiveDeclaration() throws Exception {
    String rule = "package org.drools.compiler\n" + "declare Node\n" + "    value: String\n" + "    parent: Node\n" + "end\n" + "rule R1 when\n" + "   $parent: Node( value == \"parent\" )\n" + "   $child: Node( $value : value, parent == $parent )\n" + "then\n" + "   System.out.println( $value );\n" + "end";
    KieBase kbase = new KieHelper().addContent(rule, ResourceType.DRL).build();
    KieSession ksession = kbase.newKieSession();
    FactType nodeType = kbase.getFactType("org.drools.compiler", "Node");
    Object parent = nodeType.newInstance();
    nodeType.set(parent, "value", "parent");
    ksession.insert(parent);
    Object child = nodeType.newInstance();
    nodeType.set(child, "value", "child");
    nodeType.set(child, "parent", parent);
    ksession.insert(child);
    int rules = ksession.fireAllRules();
    assertEquals(1, rules);
}

Example 60 with KieSession

use of org.kie.api.runtime.KieSession in project drools by kiegroup.

the class UnmarshallingTest method testMarshallWithNot.

@Test
public void testMarshallWithNot() throws Exception {
    String whenBenNotVilgaxRule = "import " + getClass().getCanonicalName() + ".*\n" + "rule one\n" + "when\n" + "   Ben()\n" + "   not(Vilgax())\n" + "then\n" + "   //System.out.println(\"Ben!\");\n" + "end\n" + "\n" + "rule two\n" + "when\n" + "   Ben()\n" + "then\n" + "   //System.out.println(\"Vilgax..\");\n" + "end\n";
    KieBase knowledgeBase = initializeKnowledgeBase(whenBenNotVilgaxRule);
    // Initialize Knowledge session and insert Ben
    KieSession ksession = knowledgeBase.newKieSession();
    ksession.insert(new Ben());
    // Marshall
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    MarshallerFactory.newMarshaller(knowledgeBase).marshall(baos, ksession);
    // Clean up
    // - mimicing when a session is reloaded from a database.
    ksession.dispose();
    // Re-initialize
    knowledgeBase = initializeKnowledgeBase(whenBenNotVilgaxRule);
    // Unmarshall
    ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
    try {
        ksession = MarshallerFactory.newMarshaller(knowledgeBase).unmarshall(bais);
    } catch (Throwable t) {
        t.printStackTrace();
        fail(t.getClass().getSimpleName() + " thrown when trying to unmarshall (see stack trace in output).");
    }
    int rules = ksession.fireAllRules();
    Assert.assertEquals(2, rules);
}