Examples of org.drools.core.util.ConcurrentHashTable$Segment

org.drools.core.util.ConcurrentHashTable
Segments are specialized versions of hash tables. This subclasses from ReentrantLock opportunistically, just to simplify some locking and avoid separate construction.

    }


    public void testLayoutRUN() throws Pack200Exception {
        AttributeLayout layout = new AttributeLayout("RUN",
                AttributeLayout.CONTEXT_CLASS, "RUN", 1);
        Segment segment = new TestSegment();
        assertNull(layout.getValue(0, segment.getConstantPool()));
        assertEquals("Zero", ((CPUTF8)layout.getValue(1, segment.getConstantPool())).underlyingString());
        assertEquals("One", ((CPUTF8)layout.getValue(2, segment.getConstantPool())).underlyingString());
    }

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    }


    public void testLayoutRS() throws Pack200Exception {
        AttributeLayout layout = new AttributeLayout("RS",
                AttributeLayout.CONTEXT_CLASS, "RS", 1);
        Segment segment = new TestSegment();
        assertNull(layout.getValue(-1, segment.getConstantPool()));
        assertEquals("Eins", ((CPUTF8)layout.getValue(0, segment.getConstantPool())).underlyingString());
        assertEquals("Zwei", ((CPUTF8)layout.getValue(1, segment.getConstantPool())).underlyingString());
    }

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    }


    public void testLayoutRSN() throws Pack200Exception {
        AttributeLayout layout = new AttributeLayout("RSN",
                AttributeLayout.CONTEXT_CLASS, "RSN", 1);
        Segment segment = new TestSegment();
        assertNull(layout.getValue(0, segment.getConstantPool()));
        assertEquals("Eins", ((CPUTF8)layout.getValue(1, segment.getConstantPool())).underlyingString());
        assertEquals("Zwei", ((CPUTF8)layout.getValue(2, segment.getConstantPool())).underlyingString());
    }

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        pool
                .add(new CPUTF8("OtherThing",
                        ClassConstantPool.DOMAIN_NORMALASCIIZ, 1));
        CPUTF8 u1 = new CPUTF8("thing", ClassConstantPool.DOMAIN_NORMALASCIIZ, 2);
        pool.add(u1);
        pool.resolve(new Segment());
        assertTrue(pool.indexOf(u1) > 0);
    }

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    public void testIndex() {
        pool.add(new CPUTF8("OtherThing", 1));
        CPUTF8 u1 = new CPUTF8("thing", 2);
        pool.add(u1);
        pool.resolve(new Segment());
        assertTrue(pool.indexOf(u1) > 0);
    }

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    public void testJustResources() throws Exception {
        in = Segment.class
                .getResourceAsStream("/org/apache/harmony/pack200/tests/JustResources.pack");
        file = File.createTempFile("just", "resources.jar");
        out = new JarOutputStream(new FileOutputStream(file));
        Segment segment = new Segment();
        segment.unpack(in, out);
    }

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    public void testInterfaceOnly() throws Exception {
        in = Segment.class
                .getResourceAsStream("/org/apache/harmony/pack200/tests/InterfaceOnly.pack");
        file = File.createTempFile("Interface", "Only.jar");
        out = new JarOutputStream(new FileOutputStream(file));
        Segment segment = new Segment();
        segment.unpack(in, out);
    }

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    public void testHelloWorld() throws Exception {
        in = Segment.class
                .getResourceAsStream("/org/apache/harmony/pack200/tests/HelloWorld.pack");
        file = File.createTempFile("hello", "world.jar");
        out = new JarOutputStream(new FileOutputStream(file));
        Segment segment = new Segment();
        segment.unpack(in, out);
        out.close();
        out = null;
        JarFile jarFile = new JarFile(file);
        file.deleteOnExit();

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        final FieldIndex fieldIndex = new FieldIndex( extractor,
                                                      declaration,
                                                      equals.getEvaluator( ValueType.STRING_TYPE,
                                                                           Operator.EQUAL ) );


        final ConcurrentHashTable map = new ConcurrentHashTable( new FieldIndex[]{fieldIndex} );


        assertEquals( 0,
                      map.size() );


        final Cheese stilton1 = new Cheese( "stilton",
                                            35 );
        final InternalFactHandle stiltonHandle1 = new DefaultFactHandle( 1,
                                                                         stilton1 );
        map.add( new RightTuple( stiltonHandle1,
                                 null ) );


        final Cheese cheddar1 = new Cheese( "cheddar",
                                            35 );
        final InternalFactHandle cheddarHandle1 = new DefaultFactHandle( 2,
                                                                         cheddar1 );
        map.add( new RightTuple( cheddarHandle1,
                                 null ) );


        final Cheese stilton2 = new Cheese( "stilton",
                                            81 );
        final InternalFactHandle stiltonHandle2 = new DefaultFactHandle( 3,
                                                                         stilton2 );
        map.add( new RightTuple( stiltonHandle2,
                                 null ) );


        assertEquals( 3,
                      map.size() );


        // Check they are correctly chained to the same FieldIndexEntry
        final Cheese stilton3 = new Cheese( "stilton",
                                            89 );
        final InternalFactHandle stiltonHandle3 = new DefaultFactHandle( 4,
                                                                         stilton2 );


        final RightTupleList list = map.get( new LeftTupleImpl( stiltonHandle3,
                                                            null,
                                                            true ), stiltonHandle3 );
        assertSame( stiltonHandle1,
                    list.first.getFactHandle() );
        assertSame( stiltonHandle2,

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        final FieldIndex fieldIndex = new FieldIndex( extractor,
                                                      declaration,
                                                      equals.getEvaluator( ValueType.OBJECT_TYPE,
                                                                           Operator.EQUAL ) );


        final ConcurrentHashTable map = new ConcurrentHashTable( new FieldIndex[]{fieldIndex} );


        final TestClass c1 = new TestClass( 0,
                                            new TestClass( 20,
                                                           "stilton" ) );


        final InternalFactHandle ch1 = new DefaultFactHandle( 1,
                                                              c1 );


        map.add( new RightTuple( ch1,
                                 null ) );


        final TestClass c2 = new TestClass( 0,
                                            new TestClass( 20,
                                                           "cheddar" ) );
        final InternalFactHandle ch2 = new DefaultFactHandle( 2,
                                                              c2 );
        map.add( new RightTuple( 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


        // this table bucket will have two FieldIndexEntries, as they are actually two different values
//        Entry[] entries = getEntries( map );

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