Examples with Pattern org.drools.core.rule.Pattern used on opensource projects

Example 31 with Pattern

use of org.drools.core.rule.Pattern in project drools by kiegroup.

the class CrossProductTest method setUp.

@Before
public void setUp() throws Exception {
    final ObjectType list1ObjectType = new ClassObjectType(String.class);
    final ObjectType list2ObjectType = new ClassObjectType(String.class);
    final RuleImpl rule = new RuleImpl("rule-1");
    final Pattern list1Pattern = new Pattern(0, list1ObjectType, "s1");
    final Pattern list2Pattern = new Pattern(1, list2ObjectType, "s2");
    rule.addPattern(list1Pattern);
    rule.addPattern(list2Pattern);
    final Declaration s1Declaration = rule.getDeclaration("s1");
    final Declaration s2Declaration = rule.getDeclaration("s2");
    this.values = new ArrayList();
    rule.setConsequence(new Consequence() {

        private static final long serialVersionUID = 510l;

        public void evaluate(final KnowledgeHelper knowledgeHelper, final WorkingMemory workingMemory) throws Exception {
            final String s1 = (String) knowledgeHelper.get(s1Declaration);
            final String s2 = (String) knowledgeHelper.get(s2Declaration);
            CrossProductTest.this.values.add(new String[] { s1, s2 });
        }

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

        public void writeExternal(ObjectOutput out) throws IOException {
        }

        public String getName() {
            return "default";
        }
    });
    this.pkg = new KnowledgePackageImpl("org.drools");
    this.pkg.addRule(rule);
}

Example 32 with Pattern

use of org.drools.core.rule.Pattern in project drools by kiegroup.

the class ReteooRuleBuilderTest method testAddRuleWithPatterns.

@Test
public void testAddRuleWithPatterns() {
    final RuleImpl rule = new RuleImpl("only patterns");
    final Pattern c1 = new Pattern(0, new ClassObjectType(String.class));
    final Pattern c2 = new Pattern(1, new ClassObjectType(String.class));
    final Pattern c3 = new Pattern(2, new ClassObjectType(String.class));
    final GroupElement lhsroot = GroupElementFactory.newAndInstance();
    lhsroot.addChild(c1);
    lhsroot.addChild(c2);
    lhsroot.addChild(c3);
    rule.setLhs(lhsroot);
    final Consequence consequence = new Consequence() {

        public void evaluate(KnowledgeHelper knowledgeHelper, WorkingMemory workingMemory) throws Exception {
            System.out.println("Consequence!");
        }

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

        public void writeExternal(ObjectOutput out) throws IOException {
        }

        public String getName() {
            return "default";
        }
    };
    rule.setConsequence(consequence);
    final List terminals = this.builder.addRule(rule, this.rulebase);
    assertEquals("Rule must have a single terminal node", 1, terminals.size());
    final RuleTerminalNode terminal = (RuleTerminalNode) terminals.get(0);
}

Example 33 with Pattern

use of org.drools.core.rule.Pattern in project drools by kiegroup.

the class RightTupleIndexHashTableTest method testSingleEntry.

@Test
public void testSingleEntry() throws Exception {
    final InternalReadAccessor extractor = store.getReader(Cheese.class, "type");
    final Pattern pattern = new Pattern(0, new ClassObjectType(Cheese.class));
    final Declaration declaration = new Declaration("typeOfCheese", extractor, pattern);
    final FieldIndex fieldIndex = new FieldIndex(extractor, declaration, MvelConstraint.INDEX_EVALUATOR);
    final TupleIndexHashTable map = new TupleIndexHashTable(new FieldIndex[] { fieldIndex }, false);
    final Cheese cheddar = new Cheese("cheddar", 10);
    final InternalFactHandle cheddarHandle1 = new DefaultFactHandle(0, cheddar);
    assertEquals(0, map.size());
    assertNull(map.getFirst(new LeftTupleImpl(cheddarHandle1, null, true)));
    final Cheese stilton1 = new Cheese("stilton", 35);
    RightTuple stiltonRighTuple = new RightTupleImpl(new DefaultFactHandle(1, stilton1), null);
    map.add(stiltonRighTuple);
    assertEquals(1, map.size());
    assertEquals(1, tablePopulationSize(map));
    final Cheese stilton2 = new Cheese("stilton", 80);
    final InternalFactHandle stiltonHandle2 = new DefaultFactHandle(2, stilton2);
    final Tuple tuple = map.getFirst(new LeftTupleImpl(stiltonHandle2, null, true));
    assertSame(stiltonRighTuple.getFactHandle(), tuple.getFactHandle());
    assertNull(tuple.getNext());
}

Example 34 with Pattern

use of org.drools.core.rule.Pattern in project drools by kiegroup.

the class RightTupleIndexHashTableTest method testTwoDifferentEntriesSameHashCode.

@Test
public void testTwoDifferentEntriesSameHashCode() throws Exception {
    final InternalReadAccessor extractor = store.getReader(TestClass.class, "object");
    final Pattern pattern = new Pattern(0, new ClassObjectType(TestClass.class));
    final Declaration declaration = new Declaration("theObject", extractor, pattern);
    final FieldIndex fieldIndex = new FieldIndex(extractor, declaration, MvelConstraint.INDEX_EVALUATOR);
    final TupleIndexHashTable map = new TupleIndexHashTable(new FieldIndex[] { fieldIndex }, false);
    final TestClass c1 = new TestClass(0, new TestClass(20, "stilton"));
    final InternalFactHandle ch1 = new DefaultFactHandle(1, c1);
    map.add(new RightTupleImpl(ch1, null));
    final TestClass c2 = new TestClass(0, new TestClass(20, "cheddar"));
    final InternalFactHandle ch2 = new DefaultFactHandle(2, c2);
    map.add(new RightTupleImpl(ch2, null));
    // same hashcode, but different values, so it should result in  a size of 2
    assertEquals(2, map.size());
    // however both are in the same table bucket
    assertEquals(1, tablePopulationSize(map));
    // this table bucket will have two FieldIndexEntries, as they are actually two different values
    Entry[] entries = getEntries(map);
    assertEquals(1, entries.length);
    TupleList list = (TupleList) entries[0];
    assertSame(ch2, list.getFirst().getFactHandle());
    assertNull(list.getFirst().getNext());
    assertSame(ch1, list.getNext().getFirst().getFactHandle());
    assertNull(list.getNext().getFirst().getNext());
    assertNull(list.getNext().getNext());
}

Example 35 with Pattern

use of org.drools.core.rule.Pattern in project drools by kiegroup.

the class RightTupleIndexHashTableTest method testTwoEqualEntries.

@Test
public void testTwoEqualEntries() throws Exception {
    final InternalReadAccessor extractor = store.getReader(Cheese.class, "type");
    final Pattern pattern = new Pattern(0, new ClassObjectType(Cheese.class));
    final Declaration declaration = new Declaration("typeOfCheese", extractor, pattern);
    final FieldIndex fieldIndex = new FieldIndex(extractor, declaration, MvelConstraint.INDEX_EVALUATOR);
    final TupleIndexHashTable map = new TupleIndexHashTable(new FieldIndex[] { fieldIndex }, false);
    assertEquals(0, map.size());
    final Cheese stilton1 = new Cheese("stilton", 35);
    final InternalFactHandle stiltonHandle1 = new DefaultFactHandle(1, stilton1);
    map.add(new RightTupleImpl(stiltonHandle1, null));
    final Cheese cheddar1 = new Cheese("cheddar", 35);
    final InternalFactHandle cheddarHandle1 = new DefaultFactHandle(2, cheddar1);
    map.add(new RightTupleImpl(cheddarHandle1, null));
    final Cheese stilton2 = new Cheese("stilton", 81);
    final InternalFactHandle stiltonHandle2 = new DefaultFactHandle(3, stilton2);
    map.add(new RightTupleImpl(stiltonHandle2, null));
    assertEquals(3, map.size());
    assertEquals(2, tablePopulationSize(map));
    // Check they are correctly chained to the same FieldIndexEntry
    final Cheese stilton3 = new Cheese("stilton", 89);
    final InternalFactHandle stiltonHandle3 = new DefaultFactHandle(4, stilton2);
    final Tuple tuple = map.getFirst(new LeftTupleImpl(stiltonHandle3, null, true));
    assertSame(stiltonHandle1, tuple.getFactHandle());
    assertSame(stiltonHandle2, ((RightTuple) tuple.getNext()).getFactHandle());
}