Esempio n. 1
0
        public void testCompressed()
        {
            OutputCollector  collect = new OutputCollector();
            CompressionCodec codec   = new ZlibCodec();
            OutStream        @out    = new OutStream("test", 300, codec, collect);

            PositionCollector[] positions = new PositionCollector[1024];
            for (int i = 0; i < 1024; ++i)
            {
                positions[i] = new PositionCollector();
                @out.getPosition(positions[i]);
                @out.WriteByte((byte)i);
            }
            @out.Flush();
            Assert.Equal("test", @out.ToString());
            Assert.Equal(961, collect.buffer.size());
            ByteBuffer inBuf = ByteBuffer.allocate(collect.buffer.size());

            collect.buffer.setByteBuffer(inBuf, 0, collect.buffer.size());
            inBuf.flip();
            InStream @in = InStream.create(null, "test", new ByteBuffer[] { inBuf },
                                           new long[] { 0 }, inBuf.remaining(), codec, 300);

            Assert.Equal("compressed stream test position: 0 length: 961 range: 0" +
                         " offset: 0 limit: 0 range 0 = 0 to 961",
                         @in.ToString());
            for (int i = 0; i < 1024; ++i)
            {
                int x = @in.ReadByte();
                Assert.Equal(i & 0xff, x);
            }
            Assert.Equal(0, @in.available());
            for (int i = 1023; i >= 0; --i)
            {
                @in.seek(positions[i]);
                Assert.Equal(i & 0xff, @in.ReadByte());
            }
        }
Esempio n. 2
0
        public void testUncompressedDisjointBuffers()
        {
            OutputCollector collect = new OutputCollector();
            OutStream       @out    = new OutStream("test", 400, null, collect);

            PositionCollector[] positions = new PositionCollector[1024];
            DataOutput          stream    = new DataOutputStream(@out);

            for (int i = 0; i < 1024; ++i)
            {
                positions[i] = new PositionCollector();
                @out.getPosition(positions[i]);
                stream.writeInt(i);
            }
            @out.Flush();
            Assert.Equal("test", @out.ToString());
            Assert.Equal(4096, collect.buffer.size());
            ByteBuffer[] inBuf = new ByteBuffer[3];
            inBuf[0] = ByteBuffer.allocate(1100);
            inBuf[1] = ByteBuffer.allocate(2200);
            inBuf[2] = ByteBuffer.allocate(1100);
            collect.buffer.setByteBuffer(inBuf[0], 0, 1024);
            collect.buffer.setByteBuffer(inBuf[1], 1024, 2048);
            collect.buffer.setByteBuffer(inBuf[2], 3072, 1024);

            for (int i = 0; i < inBuf.Length; ++i)
            {
                inBuf[i].flip();
            }
            InStream @in = InStream.create(null, "test", inBuf,
                                           new long[] { 0, 1024, 3072 }, 4096, null, 400);

            Assert.Equal("uncompressed stream test position: 0 length: 4096" +
                         " range: 0 offset: 0 limit: 0",
                         @in.ToString());
            DataInputStream inStream = new DataInputStream(@in);

            for (int i = 0; i < 1024; ++i)
            {
                int x = inStream.readInt();
                Assert.Equal(i, x);
            }
            Assert.Equal(0, @in.available());
            for (int i = 1023; i >= 0; --i)
            {
                @in.seek(positions[i]);
                Assert.Equal(i, inStream.readInt());
            }

            @in = InStream.create(null, "test", new ByteBuffer[] { inBuf[1], inBuf[2] },
                                  new long[] { 1024, 3072 }, 4096, null, 400);
            inStream = new DataInputStream(@in);
            positions[256].reset();
            @in.seek(positions[256]);
            for (int i = 256; i < 1024; ++i)
            {
                Assert.Equal(i, inStream.readInt());
            }

            @in = InStream.create(null, "test", new ByteBuffer[] { inBuf[0], inBuf[2] },
                                  new long[] { 0, 3072 }, 4096, null, 400);
            inStream = new DataInputStream(@in);
            positions[768].reset();
            for (int i = 0; i < 256; ++i)
            {
                Assert.Equal(i, inStream.readInt());
            }
            @in.seek(positions[768]);
            for (int i = 768; i < 1024; ++i)
            {
                Assert.Equal(i, inStream.readInt());
            }
        }
Esempio n. 3
0
        public void testDisjointBuffers()
        {
            OutputCollector  collect = new OutputCollector();
            CompressionCodec codec   = new ZlibCodec();
            OutStream        @out    = new OutStream("test", 400, codec, collect);

            PositionCollector[] positions = new PositionCollector[1024];
            DataOutput          stream    = new DataOutputStream(@out);

            for (int i = 0; i < 1024; ++i)
            {
                positions[i] = new PositionCollector();
                @out.getPosition(positions[i]);
                stream.writeInt(i);
            }
            @out.Flush();
            Assert.Equal("test", @out.ToString());
            Assert.Equal(1674, collect.buffer.size());
            ByteBuffer[] inBuf = new ByteBuffer[3];
            inBuf[0] = ByteBuffer.allocate(500);
            inBuf[1] = ByteBuffer.allocate(1200);
            inBuf[2] = ByteBuffer.allocate(500);
            collect.buffer.setByteBuffer(inBuf[0], 0, 483);
            collect.buffer.setByteBuffer(inBuf[1], 483, 1625 - 483);
            collect.buffer.setByteBuffer(inBuf[2], 1625, 1674 - 1625);

            for (int i = 0; i < inBuf.Length; ++i)
            {
                inBuf[i].flip();
            }
            InStream @in = InStream.create(null, "test", inBuf,
                                           new long[] { 0, 483, 1625 }, 1674, codec, 400);

            Assert.Equal("compressed stream test position: 0 length: 1674 range: 0" +
                         " offset: 0 limit: 0 range 0 = 0 to 483;" +
                         "  range 1 = 483 to 1142;  range 2 = 1625 to 49",
                         @in.ToString());
            DataInputStream inStream = new DataInputStream(@in);

            for (int i = 0; i < 1024; ++i)
            {
                int x = inStream.readInt();
                Assert.Equal(i, x);
            }
            Assert.Equal(0, @in.available());
            for (int i = 1023; i >= 0; --i)
            {
                @in.seek(positions[i]);
                Assert.Equal(i, inStream.readInt());
            }

            @in = InStream.create(null, "test", new ByteBuffer[] { inBuf[1], inBuf[2] },
                                  new long[] { 483, 1625 }, 1674, codec, 400);
            inStream = new DataInputStream(@in);
            positions[303].reset();
            @in.seek(positions[303]);
            for (int i = 303; i < 1024; ++i)
            {
                Assert.Equal(i, inStream.readInt());
            }

            @in = InStream.create(null, "test", new ByteBuffer[] { inBuf[0], inBuf[2] },
                                  new long[] { 0, 1625 }, 1674, codec, 400);
            inStream = new DataInputStream(@in);
            positions[1001].reset();
            for (int i = 0; i < 300; ++i)
            {
                Assert.Equal(i, inStream.readInt());
            }
            @in.seek(positions[1001]);
            for (int i = 1001; i < 1024; ++i)
            {
                Assert.Equal(i, inStream.readInt());
            }
        }