Examples of org.jgroups.util.MessageBatch$Visitor

org.jgroups.util.MessageBatch
Used for iteration over the messages




    public void testSet() {
        List<Message> msgs=createMessages();
        Message msg=msgs.get(5);
        MessageBatch batch=new MessageBatch(msgs);
        assert get(batch, 5) == msg;
        set(batch, 4,msg);
        assert get(batch, 4) == msg;
    }

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    }




    public void testReplace() {
        List<Message> msgs=createMessages();
        MessageBatch batch=new MessageBatch(msgs);
        final Message MSG=new Message();


        int index=0;
        for(Message msg: batch) {
            if(index % 2 == 0)
                batch.replace(msg,MSG);
            index++;
        }


        index=0;
        for(Message msg: batch) {

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    }




    public void testReplace2() {
        List<Message> msgs=createMessages();
        MessageBatch batch=new MessageBatch(msgs);
        final Message MSG=new Message();
        batch.replace(MSG, null);
        assert batch.size() == msgs.size(); // MSG was *not* found and therefore *not* nulled


        batch.replace(get(batch, 5), null);
        assert batch.size() == msgs.size() -1;
    }

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        batch.replace(get(batch, 5), null);
        assert batch.size() == msgs.size() -1;
    }


    public void testReplace3() {
        MessageBatch batch=new MessageBatch(1).add(new Message(null, "Bela")).add(new Message(null, "Michi"))
          .add(new Message(null, "Nicole"));
        System.out.println("batch = " + batch);
        for(Message msg: batch) {
            if("Michi".equals(msg.getObject())) {
                msg.setObject("Michelle");
                batch.replace(msg, msg); // tests replacing the message with itself (with changed buffer though)
            }
        }
        Queue<String> names=new LinkedBlockingQueue<String>(Arrays.asList("Bela", "Michelle", "Nicole"));
        for(Message msg: batch) {
            String expected=names.poll();

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                Integer num=(Integer)msg.getObject();
                return dupes.add(num) == false;
            }
        };


        MessageBatch batch=new MessageBatch(10);
        for(int j=0; j < 2; j++)
            for(int i=1; i <= 5; i++)
                batch.add(new Message(null, i));
        System.out.println(batch.map(print_numbers));
        assert batch.size() == 10;
        batch.replace(filter,  null, true);
        assert batch.size() == 5;
        System.out.println(batch.map(print_numbers));
    }

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    }




    public void testRemove() {
        List<Message> msgs=createMessages();
        MessageBatch batch=new MessageBatch(msgs);
        int prev_size=batch.size();
        remove(batch, 1, 4);
        System.out.println("batch = " + batch);
        assert batch.size() == prev_size - 2;


        batch.clear();
        System.out.println("batch = " + batch);
        assert batch.isEmpty();


        for(Message msg: msgs)
            batch.add(msg);
        System.out.println("batch = " + batch);
        assert batch.size() == prev_size;
        assert batch.capacity() == prev_size;
    }

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    public void testRemoveWithFilter() {
        Filter<Message> filter=new Filter<Message>() {
            public boolean accept(Message msg) {return msg != null && msg.isTransientFlagSet(Message.TransientFlag.OOB_DELIVERED);}
        };
        MessageBatch batch=new MessageBatch(10);
        for(int i=1; i <= 10; i++) {
            Message msg=new Message(null, i);
            if(i % 2 == 0)
                msg.setTransientFlag(Message.TransientFlag.OOB_DELIVERED);
            batch.add(msg);
        }
        System.out.println("batch = " + batch);
        assert batch.size() == 10;
        batch.remove(filter);
        System.out.println("batch = " + batch);
        assert batch.size() == 5;


        for(int i=0; i < 5; i++)
            batch.add(new Message(null, i).setTransientFlag(Message.TransientFlag.OOB_DELIVERED));
        System.out.println("batch = " + batch);
        batch.replace(filter, null, false);
        assert batch.size() == 9;
    }

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        assert batch.size() == 9;
    }




    public void testAdd() {
        MessageBatch batch=new MessageBatch(3);
        List<Message> msgs=createMessages();
        for(Message msg: msgs)
            batch.add(msg);
        System.out.println("batch = " + batch);
        assert batch.size() == msgs.size() : "batch: " + batch;
    }

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        assert batch.size() == msgs.size() : "batch: " + batch;
    }


    public void testGetMatchingMessages() {
        List<Message> msgs=createMessages();
        MessageBatch batch=new MessageBatch(msgs);
        Collection<Message> matching=batch.getMatchingMessages(UDP_ID, false);
        assert matching.size() == batch.size();
        assert batch.size() == msgs.size();


        matching=batch.getMatchingMessages(FD_ID, true);
        assert matching.size() == 1;
        assert batch.size() == msgs.size() -1;


        int size=batch.size();
        matching=batch.getMatchingMessages(UDP_ID, true);
        assert matching.size() == size;
        assert batch.isEmpty();
    }

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    }




    public void testTotalSize() {
        List<Message> msgs=createMessages();
        MessageBatch batch=new MessageBatch(msgs);
        long total_size=0;
        for(Message msg: msgs)
            total_size+=msg.size();
        System.out.println("total size=" + batch.totalSize());
        assert batch.totalSize() == total_size;
    }

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