Examples with ObjectInput java.io.ObjectInput used on opensource projects

Example 41 with ObjectInput

use of java.io.ObjectInput in project drools by kiegroup.

the class AgendaEventSupportTest method testAgendaEventListener.

// public void testIsSerializable() {
// assertTrue( Serializable.class.isAssignableFrom( AgendaEventSupport.class ) );
// }
@Test
@Ignore
public void testAgendaEventListener() throws Exception {
    InternalKnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    // create a simple package with one rule to test the events
    InternalKnowledgePackage pkg = new KnowledgePackageImpl("org.drools.test");
    final RuleImpl rule = new RuleImpl("test1");
    rule.setEager(true);
    rule.setAgendaGroup("test group");
    final ClassObjectType cheeseObjectType = new ClassObjectType(Cheese.class);
    final Pattern pattern = new Pattern(0, cheeseObjectType);
    pkg.setClassFieldAccessorCache(new ClassFieldAccessorCache(Thread.currentThread().getContextClassLoader()));
    pkg.getClassFieldAccessorStore().setEagerWire(true);
    final ClassFieldReader extractor = pkg.getClassFieldAccessorStore().getReader(Cheese.class, "type");
    final FieldValue field = FieldFactory.getInstance().getFieldValue("cheddar");
    final MvelConstraint constraint = new MvelConstraintTestUtil("type == \"cheddar\"", field, extractor);
    pattern.addConstraint(constraint);
    rule.addPattern(pattern);
    rule.setConsequence(new Consequence() {

        public void evaluate(final KnowledgeHelper knowledgeHelper, final WorkingMemory workingMemory) throws Exception {
        }

        public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
        }

        public void writeExternal(ObjectOutput out) throws IOException {
        }

        public String getName() {
            // TODO Auto-generated method stub
            return null;
        }
    });
    pkg.addRule(rule);
    kbase.addPackages(Collections.singleton(pkg));
    // create a new working memory and add an AgendaEventListener
    KieSession ksession = kbase.newKieSession();
    final List agendaList = new ArrayList();
    final AgendaEventListener agendaEventListener = new AgendaEventListener() {

        public void matchCancelled(MatchCancelledEvent event) {
            assertNotNull(event.getKieRuntime());
            agendaList.add(event);
        }

        public void matchCreated(MatchCreatedEvent event) {
            assertNotNull(event.getKieRuntime());
            agendaList.add(event);
        }

        public void afterMatchFired(AfterMatchFiredEvent event) {
            assertNotNull(event.getKieRuntime());
            agendaList.add(event);
        }

        public void agendaGroupPopped(AgendaGroupPoppedEvent event) {
            assertNotNull(event.getKieRuntime());
            agendaList.add(event);
        }

        public void agendaGroupPushed(AgendaGroupPushedEvent event) {
            assertNotNull(event.getKieRuntime());
            agendaList.add(event);
        }

        public void beforeMatchFired(BeforeMatchFiredEvent event) {
            assertNotNull(event.getKieRuntime());
            agendaList.add(event);
        }

        public void beforeRuleFlowGroupActivated(RuleFlowGroupActivatedEvent event) {
            assertNotNull(event.getKieRuntime());
            agendaList.add(event);
        }

        public void afterRuleFlowGroupActivated(RuleFlowGroupActivatedEvent event) {
            assertNotNull(event.getKieRuntime());
            agendaList.add(event);
        }

        public void beforeRuleFlowGroupDeactivated(RuleFlowGroupDeactivatedEvent event) {
            assertNotNull(event.getKieRuntime());
            agendaList.add(event);
        }

        public void afterRuleFlowGroupDeactivated(RuleFlowGroupDeactivatedEvent event) {
            assertNotNull(event.getKieRuntime());
            agendaList.add(event);
        }
    };
    ksession.addEventListener(agendaEventListener);
    assertEquals(1, ksession.getAgendaEventListeners().size());
    // assert the cheese fact
    final Cheese cheddar = new Cheese("cheddar", 15);
    FactHandle cheddarHandle = ksession.insert(cheddar);
    InternalAgenda agenda = (InternalAgenda) ksession.getAgenda();
    agenda.evaluateEagerList();
    // should be one MatchCreatedEvent
    assertEquals(1, agendaList.size());
    MatchCreatedEvent createdEvent = (MatchCreatedEvent) agendaList.get(0);
    assertSame(cheddarHandle, createdEvent.getMatch().getFactHandles().toArray()[0]);
    // clear the agenda to check CLEAR events occur
    ksession.getAgenda().clear();
    MatchCancelledEvent cancelledEvent = (MatchCancelledEvent) agendaList.get(1);
    assertEquals(MatchCancelledCause.CLEAR, cancelledEvent.getCause());
    agendaList.clear();
    // update results in an MatchCreatedEvent
    cheddar.setPrice(14);
    ksession.update(cheddarHandle, cheddar);
    agenda.evaluateEagerList();
    assertEquals(1, agendaList.size());
    createdEvent = (MatchCreatedEvent) agendaList.get(0);
    assertSame(cheddarHandle, createdEvent.getMatch().getFactHandles().toArray()[0]);
    agendaList.clear();
    // update should not result in cancelation+activation events
    cheddar.setPrice(14);
    ksession.update(cheddarHandle, cheddar);
    assertEquals(0, agendaList.size());
    // cancelledEvent = (ActivationCancelledEvent) agendaList.get( 0 );
    // assertEquals( ActivationCancelledCause.WME_MODIFY, cancelledEvent.getCause() );
    // assertSame( cheddarHandle,
    // cancelledEvent.getActivation().toFactHandles().toArray()[0] );
    // createdEvent = (ActivationCreatedEvent) agendaList.get( 1 );
    // assertSame( cheddarHandle,
    // createdEvent.getActivation().toFactHandles().toArray()[0] );
    // agendaList.clear();
    // retract results in a ActivationCancelledEvent, note the object is not resolveable now as it no longer exists
    ksession.retract(cheddarHandle);
    assertEquals(1, agendaList.size());
    cancelledEvent = (MatchCancelledEvent) agendaList.get(0);
    // invalidated handles no longer set the object to null
    assertNotNull(((InternalFactHandle) cancelledEvent.getMatch().getFactHandles().toArray()[0]).getObject());
    // re-assert the fact so we can test the agenda group events
    cheddarHandle = ksession.insert(cheddar);
    agendaList.clear();
    // setFocus results in an AgendaGroupPushedEvent
    ksession.getAgenda().getAgendaGroup("test group").setFocus();
    assertEquals(1, agendaList.size());
    final AgendaGroupPushedEvent pushedEvent = (AgendaGroupPushedEvent) agendaList.get(0);
    assertEquals("test group", pushedEvent.getAgendaGroup().getName());
    agendaList.clear();
    // fireAllRules results in a BeforeActivationFiredEvent and an AfterActivationFiredEvent
    // the AgendaGroup becomes empty, which results in a popped event.
    ksession.fireAllRules();
    assertEquals(3, agendaList.size());
    final BeforeMatchFiredEvent beforeEvent = (BeforeMatchFiredEvent) agendaList.get(0);
    assertSame(cheddarHandle, beforeEvent.getMatch().getFactHandles().toArray()[0]);
    final AfterMatchFiredEvent afterEvent = (AfterMatchFiredEvent) agendaList.get(1);
    assertSame(cheddarHandle, afterEvent.getMatch().getFactHandles().toArray()[0]);
    final AgendaGroupPoppedEvent poppedEvent = (AgendaGroupPoppedEvent) agendaList.get(2);
    assertEquals("test group", poppedEvent.getAgendaGroup().getName());
}

Example 42 with ObjectInput

use of java.io.ObjectInput in project drools by kiegroup.

the class BaseMannersTest method getAssignFirstSeatRule.

/**
 * <pre>
 *    rule assignFirstSeat() {
 *        Context context;
 *        Guest guest;
 *        Count count;
 *        when {
 *            context : Context( state == Context.START_UP )
 *            guest : Guest()
 *            count : Count()
 *        } then {
 *            String guestName = guest.getName();
 *            drools.assert( new Seating( count.getValue(), 1, true, 1, guestName, 1, guestName) );
 *            drools.assert( new Path( count.getValue(), 1, guestName ) );
 *            count.setCount(  count.getValue() + 1 );
 *
 *            System.err.println( &quot;seat 1 &quot; + guest.getName() + &quot; );
 *
 *            context.setPath( Context.ASSIGN_SEATS );
 *        }
 *    }
 * </pre>
 *
 * @return
 * @throws InvalidRuleException
 */
private RuleImpl getAssignFirstSeatRule() throws InvalidRuleException {
    final RuleImpl rule = new RuleImpl("assignFirstSeat");
    // -----------
    // context : Context( state == Context.START_UP )
    // -----------
    final Pattern contextPattern = new Pattern(0, this.contextType, "context");
    contextPattern.addConstraint(getLiteralConstraint(contextPattern, "state", Context.START_UP));
    rule.addPattern(contextPattern);
    final Declaration contextDeclaration = rule.getDeclaration("context");
    // -----------
    // guest: Guest()
    // -----------
    final Pattern guestPattern = new Pattern(1, this.guestType, "guest");
    rule.addPattern(guestPattern);
    final Declaration guestDeclaration = rule.getDeclaration("guest");
    // ------------
    // count : Count()
    // ------------
    final Pattern countPattern = new Pattern(2, this.countType, "count");
    rule.addPattern(countPattern);
    final Declaration countDeclaration = rule.getDeclaration("count");
    final Consequence consequence = new Consequence() {

        public void evaluate(KnowledgeHelper drools, WorkingMemory workingMemory) throws ConsequenceException {
            try {
                RuleImpl rule = drools.getRule();
                LeftTuple tuple = (LeftTuple) drools.getTuple();
                Guest guest = (Guest) drools.get(guestDeclaration);
                Context context = (Context) drools.get(contextDeclaration);
                Count count = (Count) drools.get(countDeclaration);
                String guestName = guest.getName();
                Seating seating = new Seating(count.getValue(), 0, true, 1, guestName, 1, guestName);
                drools.insert(seating);
                Path path = new Path(count.getValue(), 1, guestName);
                drools.insert(path);
                count.setValue(count.getValue());
                drools.update(tuple.get(countDeclaration), count);
                context.setState(Context.ASSIGN_SEATS);
                // drools.update( tuple.get( contextDeclaration ),
                // context );
                drools.update(tuple.get(contextDeclaration));
            // System.err.println( "assign first seat :  " + seating + " : " + path );
            } catch (Exception e) {
                e.printStackTrace();
                throw new ConsequenceException(e);
            }
        }

        public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
        }

        public void writeExternal(ObjectOutput out) throws IOException {
        }

        public String getName() {
            return "default";
        }
    };
    rule.setConsequence(consequence);
    return rule;
}

Example 43 with ObjectInput

use of java.io.ObjectInput in project drools by kiegroup.

the class BaseMannersTest method getPathDone.

/**
 * <pre>
 * rule pathDone() {
 *     Context context; Seating seating;
 *     when {
 *         context : Context( state == Context.MAKE_PATH )
 *         seating : Seating( pathDone == false )
 *     } then {
 *         seating.setPathDone( true );
 *         context.setName( Context.CHECK_DONE );
 *     }
 * }
 * </pre>
 *
 * @return
 * @throws InvalidRuleException
 */
private RuleImpl getPathDone() throws InvalidRuleException {
    final RuleImpl rule = new RuleImpl("pathDone");
    // -----------
    // context : Context( state == Context.MAKE_PATH )
    // -----------
    final Pattern contextPattern = new Pattern(0, this.contextType, "context");
    contextPattern.addConstraint(getLiteralConstraint(contextPattern, "state", Context.MAKE_PATH));
    rule.addPattern(contextPattern);
    final Declaration contextDeclaration = rule.getDeclaration("context");
    // ---------------
    // seating : Seating( pathDone == false )
    // ---------------
    final Pattern seatingPattern = new Pattern(1, this.seatingType, "seating");
    seatingPattern.addConstraint(getLiteralConstraint(seatingPattern, "pathDone", false));
    rule.addPattern(seatingPattern);
    final Declaration seatingDeclaration = rule.getDeclaration("seating");
    // ------------
    // context.setName( Context.CHECK_DONE );
    // seating.setPathDone( true );
    // ------------
    final Consequence consequence = new Consequence() {

        public void evaluate(KnowledgeHelper drools, WorkingMemory workingMemory) throws ConsequenceException {
            try {
                RuleImpl rule = drools.getRule();
                LeftTuple tuple = (LeftTuple) drools.getTuple();
                Context context = (Context) drools.get(contextDeclaration);
                Seating seating = (Seating) drools.get(seatingDeclaration);
                seating.setPathDone(true);
                // if ( seating.getId() == 6 ) {
                // System.err.println( "pause" );
                // }
                drools.update(tuple.get(seatingDeclaration));
                context.setState(Context.CHECK_DONE);
                drools.update(tuple.get(contextDeclaration), context);
            // System.err.println( "path done" + seating );
            } catch (Exception e) {
                e.printStackTrace();
                throw new ConsequenceException(e);
            }
        }

        public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
        }

        public void writeExternal(ObjectOutput out) throws IOException {
        }

        public String getName() {
            return "default";
        }
    };
    rule.setConsequence(consequence);
    return rule;
}

Example 44 with ObjectInput

use of java.io.ObjectInput in project drools by kiegroup.

the class BaseMannersTest method getFindSeating.

/**
 * <pre>
 *    rule findSeating() {
 *       Context context;
 *       int seatingId, seatingPid;
 *       String seatingRightGuestName, leftGuestName;
 *       Sex rightGuestSex;
 *       Hobby rightGuestHobby;
 *       Count count;
 *
 *       when {
 *           context : Context( state == Context.ASSIGN_SEATS )
 *           Seating( seatingId:id, seatingPid:pid, pathDone == true
 *                    seatingRightSeat:rightSeat seatingRightGuestName:rightGuestName )
 *           Guest( name == seatingRightGuestName, rightGuestSex:sex, rightGuestHobby:hobby )
 *           Guest( leftGuestName:name , sex != rightGuestSex, hobby == rightGuestHobby )
 *
 *           count : Count()
 *
 *           not ( Path( id == seatingId, guestName == leftGuestName) )
 *           not ( Chosen( id == seatingId, guestName == leftGuestName, hobby == rightGuestHobby) )
 *       } then {
 *           int newSeat = rightSeat + 1;
 *           drools.assert( new Seating( coung.getValue(), rightSeat, rightSeatName, leftGuestName, newSeat, countValue, id, false );
 *           drools.assert( new Path( countValue, leftGuestName, newSeat );
 *           drools.assert( new Chosen( id, leftGuestName, rightGuestHobby ) );
 *
 *           System.err.println( &quot;seat &quot; + rightSeat + &quot; &quot; + rightSeatName + &quot; &quot; + leftGuestName );
 *
 *           count.setCount(  countValue + 1 );
 *           context.setPath( Context.MAKE_PATH );
 *       }
 *    }
 * </pre>
 *
 * @return
 * @throws InvalidRuleException
 */
private RuleImpl getFindSeating() throws InvalidRuleException {
    final RuleImpl rule = new RuleImpl("findSeating");
    // ---------------
    // context : Context( state == Context.ASSIGN_SEATS )
    // ---------------
    final Pattern contextPattern = new Pattern(0, this.contextType, "context");
    contextPattern.addConstraint(getLiteralConstraint(contextPattern, "state", Context.ASSIGN_SEATS));
    rule.addPattern(contextPattern);
    final Declaration contextDeclaration = rule.getDeclaration("context");
    // -------------------------------
    // Seating( seatingId:id, seatingPid:pid, pathDone == true
    // seatingRightSeat:rightSeat seatingRightGuestName:rightGuestName )
    // -------------------------------
    final Pattern seatingPattern = new Pattern(1, this.seatingType);
    setFieldDeclaration(seatingPattern, "id", "seatingId");
    setFieldDeclaration(seatingPattern, "pid", "seatingPid");
    seatingPattern.addConstraint(getLiteralConstraint(seatingPattern, "pathDone", true));
    setFieldDeclaration(seatingPattern, "rightSeat", "seatingRightSeat");
    setFieldDeclaration(seatingPattern, "rightGuestName", "seatingRightGuestName");
    rule.addPattern(seatingPattern);
    final Declaration seatingIdDeclaration = rule.getDeclaration("seatingId");
    final Declaration seatingPidDeclaration = rule.getDeclaration("seatingPid");
    final Declaration seatingRightGuestNameDeclaration = rule.getDeclaration("seatingRightGuestName");
    final Declaration seatingRightSeatDeclaration = rule.getDeclaration("seatingRightSeat");
    // --------------
    // Guest( name == seatingRightGuestName, rightGuestSex:sex,
    // rightGuestHobby:hobby )
    // ---------------
    final Pattern rightGuestPattern = new Pattern(2, this.guestType);
    rightGuestPattern.addConstraint(getBoundVariableConstraint(rightGuestPattern, "name", seatingRightGuestNameDeclaration, "=="));
    setFieldDeclaration(rightGuestPattern, "sex", "rightGuestSex");
    setFieldDeclaration(rightGuestPattern, "hobby", "rightGuestHobby");
    rule.addPattern(rightGuestPattern);
    final Declaration rightGuestSexDeclaration = rule.getDeclaration("rightGuestSex");
    final Declaration rightGuestHobbyDeclaration = rule.getDeclaration("rightGuestHobby");
    // ----------------
    // Guest( leftGuestName:name , sex != rightGuestSex, hobby ==
    // rightGuestHobby )
    // ----------------
    final Pattern leftGuestPattern = new Pattern(3, this.guestType);
    setFieldDeclaration(leftGuestPattern, "name", "leftGuestName");
    leftGuestPattern.addConstraint(getBoundVariableConstraint(rightGuestPattern, "hobby", rightGuestHobbyDeclaration, "=="));
    leftGuestPattern.addConstraint(getBoundVariableConstraint(leftGuestPattern, "sex", rightGuestSexDeclaration, "!="));
    rule.addPattern(leftGuestPattern);
    final Declaration leftGuestNameDeclaration = rule.getDeclaration("leftGuestName");
    // ---------------
    // count : Count()
    // ---------------
    final Pattern count = new Pattern(4, this.countType, "count");
    rule.addPattern(count);
    final Declaration countDeclaration = rule.getDeclaration("count");
    // --------------
    // not ( Path( id == seatingId, guestName == leftGuestName) )
    // --------------
    final Pattern notPathPattern = new Pattern(5, this.pathType);
    notPathPattern.addConstraint(getBoundVariableConstraint(notPathPattern, "id", seatingIdDeclaration, "=="));
    notPathPattern.addConstraint(getBoundVariableConstraint(notPathPattern, "guestName", leftGuestNameDeclaration, "=="));
    final GroupElement notPath = GroupElementFactory.newNotInstance();
    notPath.addChild(notPathPattern);
    rule.addPattern(notPath);
    // ------------
    // not ( Chosen( id == seatingId, guestName == leftGuestName, hobby ==
    // rightGuestHobby ) )
    // ------------
    final Pattern notChosenPattern = new Pattern(6, this.chosenType);
    notChosenPattern.addConstraint(getBoundVariableConstraint(notChosenPattern, "id", seatingIdDeclaration, "=="));
    notChosenPattern.addConstraint(getBoundVariableConstraint(notChosenPattern, "guestName", leftGuestNameDeclaration, "=="));
    notChosenPattern.addConstraint(getBoundVariableConstraint(notChosenPattern, "hobby", rightGuestHobbyDeclaration, "=="));
    final GroupElement notChosen = GroupElementFactory.newNotInstance();
    notChosen.addChild(notChosenPattern);
    rule.addPattern(notChosen);
    // ------------
    // int newSeat = rightSeat + 1;
    // drools.assert( new Seating( coung.getValue(), rightSeat,
    // rightSeatName, leftGuestName, newSeat, countValue, id, false );
    // drools.assert( new Path( countValue, leftGuestName, newSeat );
    // drools.assert( new Chosen( id, leftGuestName, rightGuestHobby ) );
    // 
    // System.err.println( "seat " + rightSeat + " " + rightSeatName + " " +
    // leftGuestName );
    // 
    // count.setCount( countValue + 1 );
    // context.setPath( Context.MAKE_PATH );
    // ------------
    final Consequence consequence = new Consequence() {

        public void evaluate(KnowledgeHelper drools, WorkingMemory workingMemory) throws ConsequenceException {
            try {
                // MemoryVisitor visitor = new MemoryVisitor( ( InternalWorkingMemory ) workingMemory );
                // visitor.visit( workingMemory.getRuleBase() );
                RuleImpl rule = drools.getRule();
                LeftTuple tuple = (LeftTuple) drools.getTuple();
                Context context = (Context) drools.get(contextDeclaration);
                Count count = (Count) drools.get(countDeclaration);
                int seatId = seatingIdDeclaration.getExtractor().getIntValue((InternalWorkingMemory) workingMemory, tuple.get(seatingIdDeclaration).getObject());
                int seatingRightSeat = seatingRightSeatDeclaration.getExtractor().getIntValue((InternalWorkingMemory) workingMemory, tuple.get(seatingRightSeatDeclaration).getObject());
                String leftGuestName = (String) drools.get(leftGuestNameDeclaration);
                String rightGuestName = (String) drools.get(seatingRightGuestNameDeclaration);
                Hobby rightGuestHobby = (Hobby) drools.get(rightGuestHobbyDeclaration);
                Seating seating = new Seating(count.getValue(), seatId, false, seatingRightSeat, rightGuestName, seatingRightSeat + 1, leftGuestName);
                drools.insert(seating);
                Path path = new Path(count.getValue(), seatingRightSeat + 1, leftGuestName);
                drools.insert(path);
                Chosen chosen = new Chosen(seatId, leftGuestName, rightGuestHobby);
                drools.insert(chosen);
                count.setValue(count.getValue() + 1);
                // if ( count.getValue() == 5 ) {
                // drools.retractObject( tuple.getFactHandleForDeclaration( countDeclaration ) );
                // } else {
                // drools.update( tuple.getFactHandleForDeclaration( countDeclaration ),
                // count );
                // }
                drools.update(tuple.get(countDeclaration), count);
                context.setState(Context.MAKE_PATH);
                drools.update(tuple.get(contextDeclaration), context);
                System.err.println("find seating : " + seating + " : " + path + " : " + chosen);
            } catch (Exception e) {
                e.printStackTrace();
                throw new ConsequenceException(e);
            }
        }

        public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
        }

        public void writeExternal(ObjectOutput out) throws IOException {
        }

        public String getName() {
            return "default";
        }
    };
    rule.setConsequence(consequence);
    return rule;
}

Example 45 with ObjectInput

use of java.io.ObjectInput in project drools by kiegroup.

the class PackageDescrTest method testSerialization.

@Test
public void testSerialization() {
    PackageDescrBuilder builder = DescrFactory.newPackage().name("foo");
    String className = Person.class.getName();
    builder.newImport().target(className).end();
    PackageDescr descr = builder.getDescr();
    ImportDescr importDescr = new ImportDescr(className);
    ImportDescr badImportDescr = new ImportDescr(null);
    assertTrue(descr.getImports().contains(importDescr));
    try {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ObjectOutput out = new ObjectOutputStream(baos);
        descr.writeExternal(out);
        ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(baos.toByteArray()));
        PackageDescr newDescr = new PackageDescr();
        newDescr.readExternal(in);
        assertFalse(newDescr.getImports().contains(badImportDescr));
        assertTrue(newDescr.getImports().contains(importDescr));
    } catch (IOException ioe) {
        fail(ioe.getMessage());
    } catch (ClassNotFoundException cnfe) {
        fail(cnfe.getMessage());
    }
}