Example usage for io.netty.buffer ByteBuf writableBytes

Introduction

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

Prototype

public abstract int writableBytes();

Source Link

Document

Returns the number of writable bytes which is equal to (this.capacity - this.writerIndex) .

Usage

From source file:net.tomp2p.storage.AlternativeCompositeByteBuf.java

License:Apache License

@Override
public AlternativeCompositeByteBuf getBytes(int index, ByteBuf dst) {
    getBytes(index, dst, dst.writableBytes());
    return this;
}

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From source file:net.tomp2p.storage.AlternativeCompositeByteBuf.java

License:Apache License

@Override
public AlternativeCompositeByteBuf setBytes(int index, ByteBuf src, int srcIndex, int length) {
    checkSrcIndex(index, length, srcIndex, src.capacity());
    if (length == 0) {
        return this;
    }/*from   w  w w.j  av  a2  s .  c  om*/

    int i = findIndex(index);
    while (length > 0) {
        Component c = components.get(i);
        ByteBuf s = c.buf;
        int adjustment = c.offset;
        int localLength = Math.min(length, s.writableBytes());
        s.setBytes(index - adjustment, src, srcIndex, localLength);
        index += localLength;
        srcIndex += localLength;
        length -= localLength;
        i++;
    }
    return this;
}

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From source file:net.tomp2p.storage.AlternativeCompositeByteBuf.java

License:Apache License

@Override
public AlternativeCompositeByteBuf setBytes(int index, byte[] src, int srcIndex, int length) {
    checkSrcIndex(index, length, srcIndex, src.length);
    if (length == 0) {
        return this;
    }/*www  .ja v  a  2s .  c o m*/

    int i = findIndex(index);
    while (length > 0) {
        Component c = components.get(i);
        ByteBuf s = c.buf;
        int adjustment = c.offset;
        int localLength = Math.min(length, s.writableBytes());
        s.setBytes(index - adjustment, src, srcIndex, localLength);
        index += localLength;
        srcIndex += localLength;
        length -= localLength;
        i++;
    }
    return this;
}

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From source file:net.tomp2p.storage.AlternativeCompositeByteBuf.java

License:Apache License

@Override
public AlternativeCompositeByteBuf setBytes(int index, ByteBuffer src) {
    int limit = src.limit();
    int length = src.remaining();

    checkIndex(index, length);//from   w ww . j av a2s .  c o m
    if (length == 0) {
        return this;
    }

    int i = findIndex(index);
    try {
        while (length > 0) {
            Component c = components.get(i);
            ByteBuf s = c.buf;
            int adjustment = c.offset;
            int localLength = Math.min(length, s.writableBytes());
            src.limit(src.position() + localLength);
            s.setBytes(index - adjustment, src);
            index += localLength;
            length -= localLength;
            i++;
        }
    } finally {
        src.limit(limit);
    }
    return this;
}

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From source file:net.tomp2p.storage.AlternativeCompositeByteBuf.java

License:Apache License

@Override
public int setBytes(int index, InputStream in, int length) throws IOException {
    checkIndex(index, length);//w ww  . j ava2  s. c  o m
    if (length == 0) {
        return in.read(EmptyArrays.EMPTY_BYTES);
    }

    int i = findIndex(index);
    int readBytes = 0;

    do {
        Component c = components.get(i);
        ByteBuf s = c.buf;
        int adjustment = c.offset;
        int localLength = Math.min(length, s.writableBytes());
        int localReadBytes = s.setBytes(index - adjustment, in, localLength);
        if (localReadBytes < 0) {
            if (readBytes == 0) {
                return -1;
            } else {
                break;
            }
        }

        if (localReadBytes == localLength) {
            index += localLength;
            length -= localLength;
            readBytes += localLength;
            i++;
        } else {
            index += localReadBytes;
            length -= localReadBytes;
            readBytes += localReadBytes;
        }
    } while (length > 0);

    return readBytes;
}

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From source file:net.tomp2p.storage.AlternativeCompositeByteBuf.java

License:Apache License

@Override
public int setBytes(int index, ScatteringByteChannel in, int length) throws IOException {
    checkIndex(index, length);//from w ww  .ja  v a 2s.  co m
    if (length == 0) {
        return in.read(FULL_BYTEBUFFER);
    }

    int i = findIndex(index);
    int readBytes = 0;
    do {
        Component c = components.get(i);
        ByteBuf s = c.buf;
        int adjustment = c.offset;
        int localLength = Math.min(length, s.writableBytes());
        int localReadBytes = s.setBytes(index - adjustment, in, localLength);

        if (localReadBytes == 0) {
            break;
        }

        if (localReadBytes < 0) {
            if (readBytes == 0) {
                return -1;
            } else {
                break;
            }
        }

        if (localReadBytes == localLength) {
            index += localLength;
            length -= localLength;
            readBytes += localLength;
            i++;
        } else {
            index += localReadBytes;
            length -= localReadBytes;
            readBytes += localReadBytes;
        }
    } while (length > 0);

    return readBytes;
}

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From source file:net.tomp2p.storage.AlternativeCompositeByteBuf.java

License:Apache License

@Override
public ByteBuf readBytes(ByteBuf dst) {
    readBytes(dst, dst.writableBytes());
    return this;
}

---

From source file:net.tomp2p.storage.AlternativeCompositeByteBuf.java

License:Apache License

@Override
public ByteBuf readBytes(ByteBuf dst, int length) {
    if (length > dst.writableBytes()) {
        throw new IndexOutOfBoundsException(String.format(
                "length(%d) exceeds dst.writableBytes(%d) where dst is: %s", length, dst.writableBytes(), dst));
    }//w  w  w .  j a  va 2s.co m
    readBytes(dst, dst.writerIndex(), length);
    dst.writerIndex(dst.writerIndex() + length);
    return this;
}

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From source file:openbns.commons.net.codec.sts.HttpObjectEncoder.java

License:Apache License

@Override
protected void encode(ChannelHandlerContext ctx, Object msg, List<Object> out) throws Exception {
    ByteBuf buf = null;

    if (msg instanceof StsMessage) {
        if (state != ST_INIT) {
            throw new IllegalStateException("unexpected message type: " + StringUtil.simpleClassName(msg));
        }/*from   ww  w .ja  v a2 s.  co m*/

        @SuppressWarnings({ "unchecked", "CastConflictsWithInstanceof" })
        H m = (H) msg;

        buf = ctx.alloc().buffer();
        // Encode the message.
        encodeInitialLine(buf, m);
        StsHeaders.encode(m.headers(), buf);
        buf.writeBytes(CRLF);
        state = ST_CONTENT_NON_CHUNK;
    }
    if (msg instanceof StsContent || msg instanceof ByteBuf || msg instanceof FileRegion) {
        if (state == ST_INIT) {
            throw new IllegalStateException("unexpected message type: " + StringUtil.simpleClassName(msg));
        }

        int contentLength = contentLength(msg);
        if (state == ST_CONTENT_NON_CHUNK) {
            if (contentLength > 0) {
                if (buf != null && buf.writableBytes() >= contentLength && msg instanceof StsContent) {
                    // merge into other buffer for performance reasons
                    buf.writeBytes(((StsContent) msg).content());
                    out.add(buf);
                } else {
                    if (buf != null) {
                        out.add(buf);
                    }
                    out.add(encodeAndRetain(msg));
                }
            } else {
                if (buf != null) {
                    out.add(buf);
                } else {
                    // Need to produce some output otherwise an
                    // IllegalStateException will be thrown
                    out.add(EMPTY_BUFFER);
                }
            }

            if (msg instanceof LastStsContent) {
                state = ST_INIT;
            }
        } else {
            throw new Error();
        }
    } else {
        if (buf != null) {
            out.add(buf);
        }
    }
}

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From source file:org.apache.activemq.artemis.protocol.amqp.util.DeliveryUtil.java

License:Apache License

public static int readDelivery(Receiver receiver, ByteBuf buffer) {
    int initial = buffer.writerIndex();
    // optimization by norman
    int count;//from w  ww  .ja v a 2s  .  c o m
    while ((count = receiver.recv(buffer.array(), buffer.arrayOffset() + buffer.writerIndex(),
            buffer.writableBytes())) > 0) {
        // Increment the writer index by the number of bytes written into it while calling recv.
        buffer.writerIndex(buffer.writerIndex() + count);
        buffer.ensureWritable(count);
    }
    return buffer.writerIndex() - initial;
}

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