Package org.apache.mina.core.buffer

Examples of org.apache.mina.core.buffer.IoBuffer.limit()

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        nioBuf.position(3);
        nioBuf.limit(7);

        IoBuffer buf = IoBuffer.wrap(nioBuf);
        assertEquals(3, buf.position());
        assertEquals(7, buf.limit());
        assertEquals(10, buf.capacity());
    }

    @Test
    public void testWrapSubArray() throws Exception {
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    public void testWrapSubArray() throws Exception {
        byte[] array = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };

        IoBuffer buf = IoBuffer.wrap(array, 3, 4);
        assertEquals(3, buf.position());
        assertEquals(7, buf.limit());
        assertEquals(10, buf.capacity());

        buf.clear();
        assertEquals(0, buf.position());
        assertEquals(10, buf.limit());
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        assertEquals(7, buf.limit());
        assertEquals(10, buf.capacity());

        buf.clear();
        assertEquals(0, buf.position());
        assertEquals(10, buf.limit());
        assertEquals(10, buf.capacity());
    }

    @Test
    public void testDuplicate() throws Exception {
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        }

        buf.setAutoExpand(true);
        buf.put((byte) 0);
        assertEquals(2, buf.position());
        assertEquals(2, buf.limit());
        assertEquals(2, buf.capacity());

        buf.setAutoExpand(false);
        try {
            buf.put(3, (byte) 0);
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        }

        buf.setAutoExpand(true);
        buf.put(3, (byte) 0);
        assertEquals(2, buf.position());
        assertEquals(4, buf.limit());
        assertEquals(4, buf.capacity());

        // Make sure the buffer is doubled up.
        buf = IoBuffer.allocate(1).setAutoExpand(true);
        int lastCapacity = buf.capacity();
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        buf.sweep((byte) 1);
        buf.fill(7);
        buf.compact();
        assertEquals(8, buf.capacity());
        assertEquals(1, buf.position());
        assertEquals(8, buf.limit());
        buf.clear();
        assertEquals(1, buf.get());

        // Expand the buffer.
        buf.capacity(32).clear();
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        buf.sweep((byte) 1);
        buf.fill(24);
        buf.compact();
        assertEquals(16, buf.capacity());
        assertEquals(8, buf.position());
        assertEquals(16, buf.limit());
        buf.clear();
        for (int i = 0; i < 8; i ++) {
            assertEquals(1, buf.get());
        }
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        buf.sweep((byte) 1);
        buf.fill(28);
        buf.compact();
        assertEquals(8, buf.capacity());
        assertEquals(4, buf.position());
        assertEquals(8, buf.limit());
        buf.clear();
        for (int i = 0; i < 4; i ++) {
            assertEquals(1, buf.get());
        }
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        // Make sure the buffer shrinks when 0 byte is being used.
        buf.fill(32);
        buf.compact();
        assertEquals(8, buf.capacity());
        assertEquals(0, buf.position());
        assertEquals(8, buf.limit());

        // Expand the buffer.
        buf.capacity(32).clear();
        assertEquals(32, buf.capacity());
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        buf.sweep((byte) 1);
        buf.fill(23);
        buf.compact();
        assertEquals(32, buf.capacity());
        assertEquals(9, buf.position());
        assertEquals(32, buf.limit());
        buf.clear();
        for (int i = 0; i < 9; i ++) {
            assertEquals(1, buf.get());
        }
    }
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