Examples with InternalKnowledgeBase org.drools.kiesession.rulebase.InternalKnowledgeBase used on opensource projects

Example 56 with InternalKnowledgeBase

use of org.drools.kiesession.rulebase.InternalKnowledgeBase in project drools by kiegroup.

the class DescrBuilderTest method testFromEntryPoint.

@Test
public void testFromEntryPoint() throws InstantiationException, IllegalAccessException {
    PackageDescr pkg = DescrFactory.newPackage().name("org.drools").newRule().name("from rule").lhs().pattern("String").id("s", false).from().entryPoint("EventStream").end().end().rhs("//System.out.println(s);").end().getDescr();
    KiePackage kpkg = compilePkgDescr(pkg, "org.drools");
    assertEquals("org.drools", kpkg.getName());
    InternalKnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    kbase.addPackages(Collections.singletonList(kpkg));
    KieSession ksession = kbase.newKieSession();
    EntryPoint ep = ksession.getEntryPoint("EventStream");
    ep.insert("Hello World!");
    int rules = ksession.fireAllRules();
    assertEquals(1, rules);
}

Example 57 with InternalKnowledgeBase

use of org.drools.kiesession.rulebase.InternalKnowledgeBase in project drools by kiegroup.

the class DescrBuilderTest method testTopLevelAccumulate.

@Test
public void testTopLevelAccumulate() throws InstantiationException, IllegalAccessException {
    PackageDescr pkg = DescrFactory.newPackage().name("org.drools.mvel.compiler").newRule().name("r1").lhs().accumulate().source().pattern("StockTick").constraint("company == \"RHT\"").bind("$p", "price", false).end().end().function("sum", "$sum", false, "$p").function("count", "$cnt", false, "$p").end().end().rhs("// some comment").end().getDescr();
    KiePackage kpkg = compilePkgDescr(pkg, "org.drools.mvel.compiler");
    assertEquals("org.drools.mvel.compiler", kpkg.getName());
    InternalKnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    kbase.addPackages(Collections.singletonList(kpkg));
    KieSession ksession = kbase.newKieSession();
    AgendaEventListener ael = mock(AgendaEventListener.class);
    ksession.addEventListener(ael);
    ksession.insert(new StockTick(1, "RHT", 80, 1));
    ksession.insert(new StockTick(2, "RHT", 100, 10));
    int rules = ksession.fireAllRules();
    assertEquals(1, rules);
    ArgumentCaptor<AfterMatchFiredEvent> cap = ArgumentCaptor.forClass(AfterMatchFiredEvent.class);
    verify(ael).afterMatchFired(cap.capture());
    assertThat(((Number) cap.getValue().getMatch().getDeclarationValue("$sum")).intValue(), is(180));
    assertThat(((Number) cap.getValue().getMatch().getDeclarationValue("$cnt")).intValue(), is(2));
}

Example 58 with InternalKnowledgeBase

use of org.drools.kiesession.rulebase.InternalKnowledgeBase in project drools by kiegroup.

the class DescrBuilderTest method testRule.

@Test
public void testRule() throws InstantiationException, IllegalAccessException {
    PackageDescrBuilder packBuilder = DescrFactory.newPackage().name("org.drools.mvel.compiler").newRule().name("r1").lhs().and().or().pattern("StockTick").constraint("price > 100").end().pattern("StockTick").constraint("price < 10").end().end().pattern("StockTick").constraint("company == \"RHT\"").end().end().end().rhs("    System.out.println(\"foo\");\n").end();
    PackageDescr pkg = packBuilder.getDescr();
    String drl = new DrlDumper().dump(packBuilder.getDescr());
    System.out.println(drl);
    KiePackage kpkg = compilePkgDescr(pkg);
    assertEquals("org.drools.mvel.compiler", kpkg.getName());
    InternalKnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    kbase.addPackages(Collections.singletonList(kpkg));
    KieSession ksession = kbase.newKieSession();
    ksession.insert(new StockTick(1, "RHT", 80, 1));
    int rules = ksession.fireAllRules();
    assertEquals(0, rules);
    ksession = kbase.newKieSession();
    ksession.insert(new StockTick(2, "RHT", 150, 1));
    rules = ksession.fireAllRules();
    assertEquals(1, rules);
}

Example 59 with InternalKnowledgeBase

use of org.drools.kiesession.rulebase.InternalKnowledgeBase in project drools by kiegroup.

the class DescrBuilderTest method testNamedConsequence.

@Test
public void testNamedConsequence() {
    PackageDescr pkg = DescrFactory.newPackage().name("org.drools.mvel.compiler").newRule().name("test").lhs().pattern("Cheese").constraint("type == \"stilton\"").end().namedConsequence().name("c1").end().pattern("Cheese").constraint("type == \"cheddar\"").end().end().rhs("// do something").namedRhs("c1", "// do something else").end().getDescr();
    assertEquals(1, pkg.getRules().size());
    KiePackage kpkg = compilePkgDescr(pkg);
    assertEquals("org.drools.mvel.compiler", kpkg.getName());
    InternalKnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    kbase.addPackages(Collections.singletonList(kpkg));
    KieSession ksession = kbase.newKieSession();
    Cheese stilton = new Cheese("stilton", 5);
    Cheese cheddar = new Cheese("cheddar", 7);
    Cheese brie = new Cheese("brie", 5);
    ksession.insert(stilton);
    ksession.insert(cheddar);
    ksession.insert(brie);
    int rules = ksession.fireAllRules();
    assertEquals(2, rules);
}

Example 60 with InternalKnowledgeBase

use of org.drools.kiesession.rulebase.InternalKnowledgeBase in project drools by kiegroup.

the class DescrBuilderTest method testFunctions.

@Test
public void testFunctions() {
    PackageDescr pkg = DescrFactory.newPackage().name("org.drools").newFunctionImport().target("java.lang.Math.max").end().newFunction().returnType("long").name("myMax").parameter("long", "v1").parameter("long", "v2").body("return max(v1, v2);").end().newRule().name("test").lhs().eval().constraint("myMax(5, 10) == 10").end().end().rhs("// do something").end().getDescr();
    assertEquals(1, pkg.getFunctionImports().size());
    assertEquals(1, pkg.getFunctions().size());
    assertEquals(1, pkg.getRules().size());
    KiePackage kpkg = compilePkgDescr(pkg);
    assertEquals("org.drools", kpkg.getName());
    InternalKnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    kbase.addPackages(Collections.singletonList(kpkg));
    KieSession ksession = kbase.newKieSession();
    int rules = ksession.fireAllRules();
    assertEquals(1, rules);
}