Example usage for io.netty.buffer ByteBuf readBytes

Introduction

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

Prototype

public abstract ByteBuf readBytes(ByteBuffer dst);

Source Link

Document

Transfers this buffer's data to the specified destination starting at the current readerIndex until the destination's position reaches its limit, and increases the readerIndex by the number of the transferred bytes.

Usage

From source file:com.bosscs.spark.commons.extractor.client.codecs.ActionDecoder.java

License:Apache License

protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) {

    // Wait until the length prefix is available.
    if (in.readableBytes() < 5) {
        return;/*from w ww.j  a v  a 2s.c  o  m*/
    }

    // Wait until the whole data is available.
    int dataLength = in.readInt();
    if (in.readableBytes() < dataLength) {
        in.resetReaderIndex();
        return;
    }

    // Convert the received data into a new BigInteger.
    byte[] decoded = new byte[dataLength];
    in.readBytes(decoded);

    ByteArrayInputStream bis = new ByteArrayInputStream(decoded);
    ObjectInput inObj = null;
    Action action = null;
    try {
        inObj = new ObjectInputStream(bis);
        action = (Action) inObj.readObject();
    } catch (IOException | ClassNotFoundException e) {
        LOG.error(e.getMessage());
    } finally {
        try {
            bis.close();
        } catch (IOException ex) {
            // ignore close exception
        }
        try {
            if (inObj != null) {
                inObj.close();
            }
        } catch (IOException ex) {
            // ignore close exception
        }
    }

    out.add(action);
}

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From source file:com.bosscs.spark.commons.extractor.client.codecs.ResponseDecoder.java

License:Apache License

protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) {

    // Wait until the length prefix is available.
    if (in.readableBytes() < 5) {
        return;//from   w  w w  . j  a v  a2s. com
    }

    // Wait until the whole data is available.
    int dataLength = in.readInt();
    if (in.readableBytes() < dataLength) {
        in.resetReaderIndex();
        return;
    }

    // Convert the received data into a new BigInteger.
    byte[] decoded = new byte[dataLength];
    in.readBytes(decoded);

    ByteArrayInputStream bis = new ByteArrayInputStream(decoded);
    ObjectInput inObj = null;
    Response response = null;
    try {
        inObj = new ObjectInputStream(bis);
        response = (Response) inObj.readObject();
    } catch (IOException | ClassNotFoundException e) {
        e.printStackTrace();
    } finally {
        try {
            bis.close();
        } catch (IOException ex) {
            // ignore close exception
        }
        try {
            if (inObj != null) {
                inObj.close();
            }
        } catch (IOException ex) {
            // ignore close exception
        }
    }

    out.add(response);
}

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From source file:com.buildria.mocking.builder.action.RawBodyActionTest.java

License:Open Source License

@Test
public void testApplyResponse() throws Exception {
    byte[] content = "content".getBytes();

    Action action = new RawBodyAction(content);
    HttpRequest req = new DefaultHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET, "/api/p");
    HttpResponse res = new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK);
    res.headers().add(ACCEPT, "application/xml");
    HttpResponse out = action.apply(req, res);

    assertThat(out, notNullValue());/* w w  w.ja v a2s. c o m*/
    assertThat(out.headers().get(CONTENT_LENGTH), is("7"));
    assertThat(out.headers().get(ACCEPT), is("application/xml"));

    assertThat(out, instanceOf(DefaultFullHttpResponse.class));
    DefaultFullHttpResponse response = (DefaultFullHttpResponse) out;
    ByteBuf buf = response.content();

    byte[] actual = new byte[buf.readableBytes()];
    buf.readBytes(actual);
    assertThat(actual, is(content));
}

---

From source file:com.buildria.mocking.stub.Call.java

License:Open Source License

public static Call fromRequest(HttpRequest req) {
    Objects.requireNonNull(req);/*from  w  ww .  j  a v a 2 s . co m*/
    Call call = new Call();

    call.method = req.getMethod().name();
    QueryStringDecoder decoder = new QueryStringDecoder(req.getUri());
    call.path = QueryStringDecoder.decodeComponent(decoder.path());

    Map<String, List<String>> params = decoder.parameters();
    for (String name : params.keySet()) {
        List<String> values = params.get(name);
        for (String value : values) {
            call.parameters.add(new Pair(name, value));
        }
    }

    HttpHeaders headers = req.headers();
    for (String name : headers.names()) {
        List<String> values = headers.getAll(name);
        for (String value : values) {
            call.headers.add(new Pair(name, value));
        }
        if (CONTENT_TYPE.equalsIgnoreCase(name)) {
            call.contentType = MediaType.parse(headers.get(CONTENT_TYPE));
        }
    }

    if (req instanceof ByteBufHolder) {
        ByteBuf buf = ((ByteBufHolder) req).content();
        if (buf != null) {
            call.body = new byte[buf.readableBytes()];
            buf.readBytes(call.body);
        }
    }

    return call;
}

---

From source file:com.cloudhopper.smpp.pdu.BaseSm.java

License:Apache License

@Override
public void readBody(ByteBuf buffer) throws UnrecoverablePduException, RecoverablePduException {
    this.serviceType = ChannelBufferUtil.readNullTerminatedString(buffer);
    this.sourceAddress = ChannelBufferUtil.readAddress(buffer);
    this.destAddress = ChannelBufferUtil.readAddress(buffer);
    this.esmClass = buffer.readByte();
    this.protocolId = buffer.readByte();
    this.priority = buffer.readByte();
    this.scheduleDeliveryTime = ChannelBufferUtil.readNullTerminatedString(buffer);
    this.validityPeriod = ChannelBufferUtil.readNullTerminatedString(buffer);
    this.registeredDelivery = buffer.readByte();
    this.replaceIfPresent = buffer.readByte();
    this.dataCoding = buffer.readByte();
    this.defaultMsgId = buffer.readByte();
    // this is always an unsigned version of the short message length
    short shortMessageLength = buffer.readUnsignedByte();
    this.shortMessage = new byte[shortMessageLength];
    buffer.readBytes(this.shortMessage);
}

---

From source file:com.cloudhopper.smpp.util.ChannelBufferUtil.java

License:Apache License

/**
 * Reads a TLV from a buffer. This method is greedy and will read bytes
 * even if it won't be able to successfully complete.  It's assumed this
 * method will only be called if its known ahead of time that all bytes
 * will be available ahead of time./*from  w w w  .  ja  va  2 s  .c  o  m*/
 * @param buffer The buffer to read from
 * @return A new TLV instance
 * @throws NotEnoughDataInBufferException
 */
static public Tlv readTlv(ByteBuf buffer) throws NotEnoughDataInBufferException {
    // a TLV is at least 4 bytes (tag+length)
    if (buffer.readableBytes() < 4) {
        throw new NotEnoughDataInBufferException("Parsing TLV tag and length", buffer.readableBytes(), 4);
    }

    short tag = buffer.readShort();
    int length = buffer.readUnsignedShort();

    // check if we have enough data for the TLV
    if (buffer.readableBytes() < length) {
        throw new NotEnoughDataInBufferException("Parsing TLV value", buffer.readableBytes(), length);
    }

    byte[] value = new byte[length];
    buffer.readBytes(value);

    return new Tlv(tag, value);
}

---

From source file:com.cloudhopper.smpp.util.ChannelBufferUtil.java

License:Apache License

/**
 * Reads a C-String (null terminated) from a buffer.  This method will
 * attempt to find the null byte and read all data up to and including
 * the null byte.  The returned String does not include the null byte.
 * Will throw an exception if no null byte is found and it runs out of data
 * in the buffer to read./*w  w w .  ja  v a 2 s . co  m*/
 * @param buffer
 * @return
 * @throws TerminatingNullByteNotFoundException
 */
static public String readNullTerminatedString(ByteBuf buffer) throws TerminatingNullByteNotFoundException {
    // maximum possible length are the readable bytes in buffer
    int maxLength = buffer.readableBytes();

    // if there are no readable bytes, return null
    if (maxLength == 0) {
        return null;
    }

    // the reader index is defaulted to the readerIndex
    int offset = buffer.readerIndex();
    int zeroPos = 0;

    // search for NULL byte until we hit end or find it
    while ((zeroPos < maxLength) && (buffer.getByte(zeroPos + offset) != 0x00)) {
        zeroPos++;
    }

    if (zeroPos >= maxLength) {
        // a NULL byte was not found
        throw new TerminatingNullByteNotFoundException(
                "Terminating null byte not found after searching [" + maxLength + "] bytes");
    }

    // at this point, we found a terminating zero
    String result = null;
    if (zeroPos > 0) {
        // read a new byte array
        byte[] bytes = new byte[zeroPos];
        buffer.readBytes(bytes);
        try {
            result = new String(bytes, "ISO-8859-1");
        } catch (UnsupportedEncodingException e) {
            logger.error("Impossible error", e);
        }
    } else {
        result = "";
    }

    // at this point, we have just one more byte to skip over (the null byte)
    byte b = buffer.readByte();
    if (b != 0x00) {
        logger.error("Impossible error: last byte read SHOULD have been a null byte, but was [" + b + "]");
    }

    return result;
}

---

From source file:com.codnos.dbgp.internal.handlers.DBGpCommandDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> objects) throws Exception {
    int nullPosition = in.forEachByte(ByteProcessor.FIND_NUL);
    if (nullPosition < 0)
        return;//www.ja va  2  s  .c o  m
    int length = nullPosition - in.readerIndex();
    ByteBuf msgBuffer = in.readBytes(length);
    in.readByte();
    objects.add(msgBuffer.toString(UTF_8));
    msgBuffer.release();
}

---

From source file:com.codnos.dbgp.internal.handlers.DBGpResponseDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> objects) throws Exception {
    final int length = in.readableBytes();
    LOGGER.fine("got something from engine (" + length + " bytes)");
    int nullPosition = in.forEachByte(ByteProcessor.FIND_NUL);
    int readerIndex = in.readerIndex();
    int numberOfBytes = nullPosition - readerIndex;
    LOGGER.fine("found nullposition on " + nullPosition + " and readerIndex is " + readerIndex
            + " calculated number of bytes " + numberOfBytes);
    if (numberOfBytes <= 0) {
        LOGGER.fine("not enough to read, finishing");
        in.resetReaderIndex();/*from  www . j ava2s .co m*/
        return;
    }
    if (nullPosition > length) {
        LOGGER.fine("have null position further than length, finishing");
        in.resetReaderIndex();
        return;
    }
    ByteBuf sizeBuf = in.readBytes(numberOfBytes);
    in.readByte();
    String sizeBufAsString = sizeBuf.toString(UTF_8);
    int size = Integer.parseInt(sizeBufAsString);
    int expectedSize = sizeBuf.readableBytes() + NULL_BYTE_SIZE + size + NULL_BYTE_SIZE;
    if (length < expectedSize) {
        LOGGER.fine("don't have the whole message yet (expected " + expectedSize + "), finishing");
        in.resetReaderIndex();
        sizeBuf.release();
        return;
    }
    ByteBuf messageBuf = in.readBytes(size);
    in.readByte();
    objects.add(messageBuf.toString(UTF_8));
    sizeBuf.release();
    messageBuf.release();
}

---

From source file:com.comphenix.protocol.compat.netty.independent.NettyChannelInjector.java

License:Open Source License

/**
 * Retrieve every byte in the given byte buffer.
 * @param buffer - the buffer.//from  ww  w. j  av a  2 s .  c om
 * @return The bytes.
 */
private byte[] getBytes(ByteBuf buffer) {
    byte[] data = new byte[buffer.readableBytes()];

    buffer.readBytes(data);
    return data;
}

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