Example usage for io.netty.buffer ByteBuf slice

List of usage examples for io.netty.buffer ByteBuf slice

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Introduction

In this page you can find the example usage for io.netty.buffer ByteBuf slice.

Prototype

public abstract ByteBuf slice(int index, int length);

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Document

Returns a slice of this buffer's sub-region.

Usage

From source file:com.twitter.http2.HttpFrameDecoderTest.java

License:Apache License

@Test
public void testHttpHeadersFrameMultipleContinuations() throws Exception {
    int headerBlockLength = 16;
    int length = 5 + headerBlockLength;
    byte flags = 0x01 | 0x20; // END_STREAM | PRIORITY
    int streamId = RANDOM.nextInt() & 0x7FFFFFFF | 0x01;
    boolean exclusive = RANDOM.nextBoolean();
    int dependency = RANDOM.nextInt() & 0x7FFFFFFF;
    int weight = RANDOM.nextInt() & 0xFF;

    ByteBuf headersFrame = headersFrame(length, flags, streamId);
    writePriorityFields(headersFrame, exclusive, dependency, weight);
    writeRandomData(headersFrame, headerBlockLength);
    ByteBuf continuationFrame1 = continuationFrame(0, (byte) 0x00, streamId);
    ByteBuf continuationFrame2 = continuationFrame(0, (byte) 0x04, streamId); // END_HEADERS
    decoder.decode(releaseLater(Unpooled.wrappedBuffer(headersFrame, continuationFrame1, continuationFrame2)));

    InOrder inOrder = inOrder(delegate);
    inOrder.verify(delegate).readHeadersFrame(streamId, true, false, exclusive, dependency, weight + 1);
    inOrder.verify(delegate).readHeaderBlock(headersFrame.slice(HTTP_FRAME_HEADER_SIZE + 5, headerBlockLength));
    inOrder.verify(delegate).readHeaderBlockEnd();
    verifyNoMoreInteractions(delegate);//  ww w  . java 2s. co  m
}

From source file:com.twitter.http2.HttpFrameDecoderTest.java

License:Apache License

@Test
public void testHttpHeadersFrameContinuationReservedFlags() throws Exception {
    int length = 16;
    byte flags = 0;
    int streamId = RANDOM.nextInt() & 0x7FFFFFFF | 0x01;

    ByteBuf headersFrame = headersFrame(length, flags, streamId);
    writeRandomData(headersFrame, length);
    ByteBuf continuationFrame = continuationFrame(0, (byte) 0xE7, streamId); // END_HEADERS
    decoder.decode(releaseLater(Unpooled.wrappedBuffer(headersFrame, continuationFrame)));

    InOrder inOrder = inOrder(delegate);
    inOrder.verify(delegate).readHeadersFrame(streamId, false, false, false, HTTP_DEFAULT_DEPENDENCY,
            HTTP_DEFAULT_WEIGHT);/*w  w w  . j  a  v a 2  s.  co m*/
    inOrder.verify(delegate).readHeaderBlock(headersFrame.slice(HTTP_FRAME_HEADER_SIZE, 16));
    inOrder.verify(delegate).readHeaderBlockEnd();
    verifyNoMoreInteractions(delegate);
}

From source file:com.twitter.http2.HttpFrameDecoderTest.java

License:Apache License

@Test
public void testHttpHeadersFrameContinuationIllegalStreamId() throws Exception {
    int length = 16;
    byte flags = 0;
    int streamId = RANDOM.nextInt() & 0x7FFFFFFF | 0x01;

    ByteBuf headersFrame = headersFrame(length, flags, streamId);
    writeRandomData(headersFrame, length);
    // different stream identifier
    ByteBuf continuationFrame = continuationFrame(0, (byte) 0x04, streamId + 1); // END_HEADERS
    decoder.decode(releaseLater(Unpooled.wrappedBuffer(headersFrame, continuationFrame)));

    InOrder inOrder = inOrder(delegate);
    inOrder.verify(delegate).readHeadersFrame(streamId, false, false, false, HTTP_DEFAULT_DEPENDENCY,
            HTTP_DEFAULT_WEIGHT);/*from   w w  w .j a  va 2 s .  c om*/
    inOrder.verify(delegate).readHeaderBlock(headersFrame.slice(HTTP_FRAME_HEADER_SIZE, 16));
    inOrder.verify(delegate).readFrameError(anyString());
    verifyNoMoreInteractions(delegate);
}

From source file:com.twitter.http2.HttpFrameDecoderTest.java

License:Apache License

@Test
public void testHttpPushPromiseFrame() throws Exception {
    int headerBlockLength = 16;
    int length = 4 + headerBlockLength;
    byte flags = 0x04; // END_HEADERS
    int streamId = RANDOM.nextInt() & 0x7FFFFFFF | 0x01;
    int promisedStreamId = RANDOM.nextInt() & 0x7FFFFFFF | 0x01;

    ByteBuf frame = pushPromiseFrame(length, flags, streamId);
    frame.writeInt(promisedStreamId);/*from  w  w w  .  j  ava  2s.co  m*/
    writeRandomData(frame, headerBlockLength);
    decoder.decode(frame);

    InOrder inOrder = inOrder(delegate);
    inOrder.verify(delegate).readPushPromiseFrame(streamId, promisedStreamId);
    inOrder.verify(delegate).readHeaderBlock(frame.slice(HTTP_FRAME_HEADER_SIZE + 4, headerBlockLength));
    inOrder.verify(delegate).readHeaderBlockEnd();
    verifyNoMoreInteractions(delegate);
}

From source file:com.twitter.http2.HttpFrameDecoderTest.java

License:Apache License

@Test
public void testContinuedHttpPushPromiseFrame() throws Exception {
    int headerBlockLength = 16;
    int length = 4;
    byte flags = 0;
    int streamId = RANDOM.nextInt() & 0x7FFFFFFF | 0x01;
    int promisedStreamId = RANDOM.nextInt() & 0x7FFFFFFF | 0x01;

    ByteBuf pushPromiseFrame = pushPromiseFrame(length, flags, streamId);
    pushPromiseFrame.writeInt(promisedStreamId);
    ByteBuf continuationFrame = continuationFrame(headerBlockLength, (byte) 0x04, streamId); // END_HEADERS
    writeRandomData(continuationFrame, headerBlockLength);
    decoder.decode(releaseLater(Unpooled.wrappedBuffer(pushPromiseFrame, continuationFrame)));

    InOrder inOrder = inOrder(delegate);
    inOrder.verify(delegate).readPushPromiseFrame(streamId, promisedStreamId);
    inOrder.verify(delegate)//  w w w.j  ava2 s .  c om
            .readHeaderBlock(continuationFrame.slice(HTTP_FRAME_HEADER_SIZE, headerBlockLength));
    inOrder.verify(delegate).readHeaderBlockEnd();
    verifyNoMoreInteractions(delegate);
}

From source file:com.twitter.http2.HttpFrameDecoderTest.java

License:Apache License

@Test
public void testHttpPushPromiseFrameEmptyContinuation() throws Exception {
    int headerBlockLength = 16;
    int length = 4 + headerBlockLength;
    byte flags = 0;
    int streamId = RANDOM.nextInt() & 0x7FFFFFFF | 0x01;
    int promisedStreamId = RANDOM.nextInt() & 0x7FFFFFFF | 0x01;

    ByteBuf pushPromiseFrame = pushPromiseFrame(length, flags, streamId);
    pushPromiseFrame.writeInt(promisedStreamId);
    writeRandomData(pushPromiseFrame, headerBlockLength);
    ByteBuf continuationFrame = continuationFrame(0, (byte) 0x04, streamId); // END_HEADERS
    decoder.decode(releaseLater(Unpooled.wrappedBuffer(pushPromiseFrame, continuationFrame)));

    InOrder inOrder = inOrder(delegate);
    inOrder.verify(delegate).readPushPromiseFrame(streamId, promisedStreamId);
    inOrder.verify(delegate)/*from ww w .  j  a  v a  2  s.com*/
            .readHeaderBlock(pushPromiseFrame.slice(HTTP_FRAME_HEADER_SIZE + 4, headerBlockLength));
    inOrder.verify(delegate).readHeaderBlockEnd();
    verifyNoMoreInteractions(delegate);
}

From source file:com.twitter.http2.HttpFrameDecoderTest.java

License:Apache License

@Test
public void testHttpPushPromiseFrameMultipleContinuations() throws Exception {
    int headerBlockLength = 16;
    int length = 4 + headerBlockLength;
    byte flags = 0;
    int streamId = RANDOM.nextInt() & 0x7FFFFFFF | 0x01;
    int promisedStreamId = RANDOM.nextInt() & 0x7FFFFFFF | 0x01;

    ByteBuf pushPromiseFrame = pushPromiseFrame(length, flags, streamId);
    pushPromiseFrame.writeInt(promisedStreamId);
    writeRandomData(pushPromiseFrame, headerBlockLength);
    ByteBuf continuationFrame1 = continuationFrame(0, (byte) 0x00, streamId);
    ByteBuf continuationFrame2 = continuationFrame(0, (byte) 0x04, streamId); // END_HEADERS
    decoder.decode(/*from   w ww  . j  a v  a  2s.c  om*/
            releaseLater(Unpooled.wrappedBuffer(pushPromiseFrame, continuationFrame1, continuationFrame2)));

    InOrder inOrder = inOrder(delegate);
    inOrder.verify(delegate).readPushPromiseFrame(streamId, promisedStreamId);
    inOrder.verify(delegate)
            .readHeaderBlock(pushPromiseFrame.slice(HTTP_FRAME_HEADER_SIZE + 4, headerBlockLength));
    inOrder.verify(delegate).readHeaderBlockEnd();
    verifyNoMoreInteractions(delegate);
}

From source file:com.twitter.http2.HttpFrameDecoderTest.java

License:Apache License

@Test
public void testHttpPushPromiseFrameContinuationReservedFlags() throws Exception {
    int headerBlockLength = 16;
    int length = 4 + headerBlockLength;
    byte flags = 0;
    int streamId = RANDOM.nextInt() & 0x7FFFFFFF | 0x01;
    int promisedStreamId = RANDOM.nextInt() & 0x7FFFFFFF | 0x01;

    ByteBuf pushPromiseFrame = pushPromiseFrame(length, flags, streamId);
    pushPromiseFrame.writeInt(promisedStreamId);
    writeRandomData(pushPromiseFrame, headerBlockLength);
    ByteBuf continuationFrame = continuationFrame(0, (byte) 0xE7, streamId); // END_HEADERS
    decoder.decode(releaseLater(Unpooled.wrappedBuffer(pushPromiseFrame, continuationFrame)));

    InOrder inOrder = inOrder(delegate);
    inOrder.verify(delegate).readPushPromiseFrame(streamId, promisedStreamId);
    inOrder.verify(delegate)/*from  w  w w .  j a v  a2 s.  c  o m*/
            .readHeaderBlock(pushPromiseFrame.slice(HTTP_FRAME_HEADER_SIZE + 4, headerBlockLength));
    inOrder.verify(delegate).readHeaderBlockEnd();
    verifyNoMoreInteractions(delegate);
}

From source file:com.twitter.http2.HttpFrameDecoderTest.java

License:Apache License

@Test
public void testHttpPushPromiseFrameContinuationIllegalStreamId() throws Exception {
    int headerBlockLength = 16;
    int length = 4 + headerBlockLength;
    byte flags = 0;
    int streamId = RANDOM.nextInt() & 0x7FFFFFFF | 0x01;
    int promisedStreamId = RANDOM.nextInt() & 0x7FFFFFFF | 0x01;

    ByteBuf pushPromiseFrame = pushPromiseFrame(length, flags, streamId);
    pushPromiseFrame.writeInt(promisedStreamId);
    writeRandomData(pushPromiseFrame, headerBlockLength);
    // different stream identifier
    ByteBuf continuationFrame = continuationFrame(0, (byte) 0x04, streamId + 1); // END_HEADERS
    decoder.decode(releaseLater(Unpooled.wrappedBuffer(pushPromiseFrame, continuationFrame)));

    InOrder inOrder = inOrder(delegate);
    inOrder.verify(delegate).readPushPromiseFrame(streamId, promisedStreamId);
    inOrder.verify(delegate)//from   www  . java 2s  . co  m
            .readHeaderBlock(pushPromiseFrame.slice(HTTP_FRAME_HEADER_SIZE + 4, headerBlockLength));
    inOrder.verify(delegate).readFrameError(anyString());
    verifyNoMoreInteractions(delegate);
}

From source file:com.whizzosoftware.hobson.dsc.api.codec.DSCFrameDecoder.java

License:Open Source License

@Override
protected Object decode(ChannelHandlerContext ctx, ByteBuf buffer) throws Exception {
    logger.trace("decode: {}", buffer.toString(CharsetUtil.UTF_8));

    ByteBuf frame = (ByteBuf) super.decode(ctx, buffer);

    if (frame != null) {
        try {//from  w ww .j a  v a 2s  .  c om
            if (frame.readableBytes() >= 3) {
                String cmdId = new String(new byte[] { frame.getByte(0), frame.getByte(1), frame.getByte(2) });
                switch (cmdId) {
                case CodeRequired.ID:
                    return new CodeRequired();
                case CommandAcknowledge.ID:
                    return new CommandAcknowledge();
                case CommandError.ID:
                    return new CommandError();
                case LCDUpdate.ID:
                    int lineNumber = frame.getByte(3) - '0';
                    int columnNumber = Integer
                            .parseInt(new String(new byte[] { frame.getByte(4), frame.getByte(5) }));
                    int length = Integer
                            .parseInt(new String(new byte[] { frame.getByte(6), frame.getByte(7) }));
                    return new LCDUpdate(lineNumber, columnNumber,
                            frame.slice(8, length).toString(CharsetUtil.UTF_8));
                case LEDStatus.ID:
                    return new LEDStatus(LEDStatus.LEDType.forOrdinal(frame.getByte(3) - '0'),
                            LEDStatus.Status.forOrdinal(frame.getByte(4) - '0'));
                case SoftwareVersion.ID:
                    return new SoftwareVersion(frame.slice(3, 4).toString(CharsetUtil.UTF_8));
                case PartitionBusy.ID:
                    return new PartitionBusy(frame.getByte(3) - '0');
                case PartitionNotReady.ID:
                    return new PartitionNotReady(frame.getByte(3) - '0');
                case PartitionReady.ID:
                    return new PartitionReady(frame.getByte(3) - '0');
                case TroubleLEDOff.ID:
                    return new TroubleLEDOff(frame.getByte(3) - '0');
                case ZoneOpen.ID:
                    return new ZoneOpen(Integer.parseInt(
                            new String(new byte[] { frame.getByte(3), frame.getByte(4), frame.getByte(5) })));
                case ZoneRestored.ID:
                    return new ZoneRestored(Integer.parseInt(
                            new String(new byte[] { frame.getByte(3), frame.getByte(4), frame.getByte(5) })));
                case TimeDateBroadcast.ID:
                    return new TimeDateBroadcast(frame.slice(3, 10).toString(CharsetUtil.UTF_8));
                default:
                    logger.debug("Ignoring unknown command frame: {}", buffer.toString(CharsetUtil.UTF_8));
                    return null;
                }
            } else {
                throw new CorruptedFrameException("Frame should not be less than 3 bytes");
            }
        } finally {
            frame.release();
        }
    } else {
        return null;
    }
}