Examples of com.fasterxml.util.membuf.impl.ChunkyBytesMemBufferImpl


    @Override
    protected ChunkyBytesMemBuffer _createChunkyBuffer(int minSegmentsForBuffer, int maxSegmentsForBuffer,
            BytesSegment initialSegments)
    {
        return new ChunkyBytesMemBufferImpl(_segmentAllocator, minSegmentsForBuffer, maxSegmentsForBuffer,
                initialSegments);
        
    }

public class BufferCloseTest extends MembufTestBase
{
    public void testClosing() throws Exception
    {
        MemBuffersForBytes bufs = new MemBuffersForBytes(20, 4, 10);
        ChunkyBytesMemBufferImpl buffer = (ChunkyBytesMemBufferImpl)bufs.createChunkyBuffer(2, 3);
        SegmentAllocator<?> alloc = bufs.getAllocator();


        // min size 2, so will allocate 2 right away
        assertEquals(2, alloc.getBufferOwnedSegmentCount());
        assertEquals(0, alloc.getReusableSegmentCount());
        
        buffer.appendEntry(new byte[24]); // fills 1 buffer, part of second
        buffer.appendEntry(new byte[17]); // fills 2nd buffer, starts third


        assertEquals(3, alloc.getBufferOwnedSegmentCount());
        assertEquals(0, alloc.getReusableSegmentCount());
        assertEquals(3, buffer.getSegmentCount());


        buffer.close();
        
        assertEquals(0, buffer.getEntryCount());
        assertEquals(0L, buffer.getTotalPayloadLength());
        assertEquals(0, buffer.getSegmentCount());


        assertEquals(0, alloc.getBufferOwnedSegmentCount());
        assertEquals(3, alloc.getReusableSegmentCount());


        // Ok: reuse seems to work; but we should NOT be able to do anything else
        try {
            buffer.appendEntry(new byte[1]);
            fail("Should not be able to append things to closed Buffer");
        } catch (IllegalStateException e) {
            verifyException(e, "instance closed");
        }


        try {
            buffer.getNextEntryLength();
            fail("Should not be able to read from closed Buffer");
        } catch (IllegalStateException e) {
            verifyException(e, "instance closed");
        }
    }

Examples of com.fasterxml.util.membuf.impl.ChunkyBytesMemBufferImpl

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