Examples of org.jgroups.util.ExtendedUUID

org.jgroups.util.ExtendedUUID
Subclass of {@link UUID} accommodating additional data such as a flag and a small hashmap. There may be many instancesin memory, and as they are serialized a lot and sent across the wire, I tried to make this as compact as possible. As a consequence, the hashmap can have a max size of 255 and a value can have a max length of 255 bytes. @author Bela Ban @since 3.5

            System.out.println("got exception as expected: " + ex);
        }
    }


    public void testCopy() throws Exception {
        ExtendedUUID uuid=ExtendedUUID.randomUUID("A").setFlag((short)16).setFlag((short)32);
        uuid.put("name", Util.objectToByteBuffer("Bela"))
          .put("age",Util.objectToByteBuffer(49))
          .put("bool",Util.objectToByteBuffer(true));
        System.out.println("uuid = " + uuid);


        ExtendedUUID uuid2=new ExtendedUUID(uuid);
        System.out.println("uuid2 = " + uuid2);
        assert uuid.getMostSignificantBits() == uuid2.getMostSignificantBits();
        assert uuid.getLeastSignificantBits() == uuid2.getLeastSignificantBits();
        assert uuid2.isFlagSet((short)16) && uuid2.isFlagSet((short)32);
        assert uuid2.length() == 3;
        for(String key: Arrays.asList("name", "age", "bool"))
            assert uuid2.keyExists(key);
    }

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        for(String key: Arrays.asList("name", "age", "bool"))
            assert uuid2.keyExists(key);
    }


    public void testMarshalling() throws Exception {
        ExtendedUUID uuid=ExtendedUUID.randomUUID("A").setFlag((short)16).setFlag((short)32);
        uuid.put("name", Util.objectToByteBuffer("Bela"))
          .put("age",Util.objectToByteBuffer(49))
          .put("bool",Util.objectToByteBuffer(true));
        int size=uuid.size();
        byte[] buffer=Util.streamableToByteBuffer(uuid);
        assert size == buffer.length : "expected size of " + size + ", but got " + buffer.length;
        ExtendedUUID uuid2=(ExtendedUUID)Util.streamableFromByteBuffer(ExtendedUUID.class,buffer);
        System.out.println("uuid2 = " + uuid2);
        assert uuid2.isFlagSet((short)16);
        assert uuid2.isFlagSet((short)32);
        for(String key: Arrays.asList("name", "age", "bool"))
            assert uuid2.keyExists(key);
    }

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            assert uuid2.keyExists(key);
    }




    public void testMarshallingNullHashMap() throws Exception {
        ExtendedUUID uuid=ExtendedUUID.randomUUID("A");
        int size=uuid.size();
        byte[] buffer=Util.streamableToByteBuffer(uuid);
        assert size == buffer.length : "expected size of " + size + ", but got " + buffer.length;
        ExtendedUUID uuid2=(ExtendedUUID)Util.streamableFromByteBuffer(ExtendedUUID.class,buffer);
        System.out.println("uuid2 = " + uuid2);
    }

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        ExtendedUUID uuid2=(ExtendedUUID)Util.streamableFromByteBuffer(ExtendedUUID.class,buffer);
        System.out.println("uuid2 = " + uuid2);
    }


    public void testMarshallingLargeValues() throws Exception {
        ExtendedUUID uuid=ExtendedUUID.randomUUID("A");
        for(int i=1; i <= 5; i++)
            uuid.put(String.valueOf(i), new byte[250]);
        System.out.println("uuid = " + uuid);
        int size=uuid.size();
        byte[] buffer=Util.streamableToByteBuffer(uuid);
        assert size == buffer.length : "expected size of " + size + ", but got " + buffer.length;
        ExtendedUUID uuid2=(ExtendedUUID)Util.streamableFromByteBuffer(ExtendedUUID.class,buffer);
        System.out.println("uuid2 = " + uuid2);
        for(int i=1; i <= 5; i++) {
            byte[] val=uuid.get(String.valueOf(i));
            assert val != null && val.length == 250;
        }

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            assert val != null && val.length == 250;
        }
    }


    public void testmarshallingWithNullValues() throws Exception {
        ExtendedUUID uuid=ExtendedUUID.randomUUID("A");
        byte[] value=Util.objectToByteBuffer("Bela");
        for(int i=1; i <= 5; i++)
            uuid.put(String.valueOf(i), i % 2 == 0? value : null);
        System.out.println("uuid = " + uuid);
        int size=uuid.size();
        byte[] buffer=Util.streamableToByteBuffer(uuid);
        assert size == buffer.length : "expected size of " + size + ", but got " + buffer.length;
        ExtendedUUID uuid2=(ExtendedUUID)Util.streamableFromByteBuffer(ExtendedUUID.class,buffer);
        System.out.println("uuid2 = " + uuid2);
        for(int i=1; i <= 5; i++) {
            byte[] val=uuid.get(String.valueOf(i));
            boolean null_val=i % 2 != 0;
            if(null_val)

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                assert val != null && val.length == value.length;
        }
    }


    public void testMarshallingWithRemoval() throws Exception {
        ExtendedUUID uuid=ExtendedUUID.randomUUID("A");
        byte[] value=Util.objectToByteBuffer("Bela");


        for(int i=1; i <= 10; i++)
            uuid.put(String.valueOf(i), value);
        assert uuid.length() == 10;


        System.out.println("uuid = " + uuid);
        for(int i=1; i <= 10; i++)
            if(i % 2 == 0)
                uuid.remove(String.valueOf(i));
        System.out.println("uuid = " + uuid);
        assert uuid.length() == 5;


        int size=uuid.size();
        byte[] buffer=Util.streamableToByteBuffer(uuid);
        assert size == buffer.length : "expected size of " + size + ", but got " + buffer.length;
        ExtendedUUID uuid2=(ExtendedUUID)Util.streamableFromByteBuffer(ExtendedUUID.class,buffer);
        System.out.println("uuid2 = " + uuid2);
        assert uuid2.length() == 5;


        for(int i=1; i <= 10; i++) {
            boolean exists=i % 2 != 0;
            assert uuid2.keyExists(String.valueOf(i)) == exists;
        }
    }

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