Java Code Examples for io.netty.channel.sctp.SctpMessage#content()

The following examples show how to use io.netty.channel.sctp.SctpMessage#content() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: NioSctpChannel.java From netty-4.1.22 with Apache License 2.0

6 votes

@Override
protected final Object filterOutboundMessage(Object msg) throws Exception {
    if (msg instanceof SctpMessage) {
        SctpMessage m = (SctpMessage) msg;
        ByteBuf buf = m.content();
        if (buf.isDirect() && buf.nioBufferCount() == 1) {
            return m;
        }

        return new SctpMessage(m.protocolIdentifier(), m.streamIdentifier(), m.isUnordered(),
                               newDirectBuffer(m, buf));
    }

    throw new UnsupportedOperationException(
            "unsupported message type: " + StringUtil.simpleClassName(msg) +
            " (expected: " + StringUtil.simpleClassName(SctpMessage.class));
}

Example 2

Source File: NioSctpChannel.java From netty4.0.27Learn with Apache License 2.0

6 votes

@Override
protected final Object filterOutboundMessage(Object msg) throws Exception {
    if (msg instanceof SctpMessage) {
        SctpMessage m = (SctpMessage) msg;
        ByteBuf buf = m.content();
        if (buf.isDirect() && buf.nioBufferCount() == 1) {
            return m;
        }

        return new SctpMessage(m.protocolIdentifier(), m.streamIdentifier(), newDirectBuffer(m, buf));
    }

    throw new UnsupportedOperationException(
            "unsupported message type: " + StringUtil.simpleClassName(msg) +
            " (expected: " + StringUtil.simpleClassName(SctpMessage.class));
}

Example 3

Source File: NioSctpChannel.java From netty-4.1.22 with Apache License 2.0

5 votes

@Override
protected boolean doWriteMessage(Object msg, ChannelOutboundBuffer in) throws Exception {
    SctpMessage packet = (SctpMessage) msg;
    ByteBuf data = packet.content();
    int dataLen = data.readableBytes();
    if (dataLen == 0) {
        return true;
    }

    ByteBufAllocator alloc = alloc();
    boolean needsCopy = data.nioBufferCount() != 1;
    if (!needsCopy) {
        if (!data.isDirect() && alloc.isDirectBufferPooled()) {
            needsCopy = true;
        }
    }
    ByteBuffer nioData;
    if (!needsCopy) {
        nioData = data.nioBuffer();
    } else {
        data = alloc.directBuffer(dataLen).writeBytes(data);
        nioData = data.nioBuffer();
    }
    final MessageInfo mi = MessageInfo.createOutgoing(association(), null, packet.streamIdentifier());
    mi.payloadProtocolID(packet.protocolIdentifier());
    mi.streamNumber(packet.streamIdentifier());
    mi.unordered(packet.isUnordered());

    final int writtenBytes = javaChannel().send(nioData, mi);
    return writtenBytes > 0;
}

Example 4

Source File: SctpMessageCompletionHandler.java From netty-4.1.22 with Apache License 2.0

5 votes

@Override
protected void decode(ChannelHandlerContext ctx, SctpMessage msg, List<Object> out) throws Exception {
    final ByteBuf byteBuf = msg.content();
    final int protocolIdentifier = msg.protocolIdentifier();
    final int streamIdentifier = msg.streamIdentifier();
    final boolean isComplete = msg.isComplete();
    final boolean isUnordered = msg.isUnordered();

    ByteBuf frag = fragments.remove(streamIdentifier);
    if (frag == null) {
        frag = Unpooled.EMPTY_BUFFER;
    }

    if (isComplete && !frag.isReadable()) {
        //data chunk is not fragmented
        out.add(msg);
    } else if (!isComplete && frag.isReadable()) {
        //more message to complete
        fragments.put(streamIdentifier, Unpooled.wrappedBuffer(frag, byteBuf));
    } else if (isComplete && frag.isReadable()) {
        //last message to complete
        SctpMessage assembledMsg = new SctpMessage(
                protocolIdentifier,
                streamIdentifier,
                isUnordered,
                Unpooled.wrappedBuffer(frag, byteBuf));
        out.add(assembledMsg);
    } else {
        //first incomplete message
        fragments.put(streamIdentifier, byteBuf);
    }
    byteBuf.retain();
}

Example 5

Source File: NioSctpChannel.java From netty4.0.27Learn with Apache License 2.0

5 votes

@Override
protected boolean doWriteMessage(Object msg, ChannelOutboundBuffer in) throws Exception {
    SctpMessage packet = (SctpMessage) msg;
    ByteBuf data = packet.content();
    int dataLen = data.readableBytes();
    if (dataLen == 0) {
        return true;
    }

    ByteBufAllocator alloc = alloc();
    boolean needsCopy = data.nioBufferCount() != 1;
    if (!needsCopy) {
        if (!data.isDirect() && alloc.isDirectBufferPooled()) {
            needsCopy = true;
        }
    }
    ByteBuffer nioData;
    if (!needsCopy) {
        nioData = data.nioBuffer();
    } else {
        data = alloc.directBuffer(dataLen).writeBytes(data);
        nioData = data.nioBuffer();
    }
    final MessageInfo mi = MessageInfo.createOutgoing(association(), null, packet.streamIdentifier());
    mi.payloadProtocolID(packet.protocolIdentifier());
    mi.streamNumber(packet.streamIdentifier());

    final int writtenBytes = javaChannel().send(nioData, mi);
    return writtenBytes > 0;
}

Example 6

Source File: SctpMessageCompletionHandler.java From netty4.0.27Learn with Apache License 2.0

5 votes

@Override
protected void decode(ChannelHandlerContext ctx, SctpMessage msg, List<Object> out) throws Exception {
    final ByteBuf byteBuf = msg.content();
    final int protocolIdentifier = msg.protocolIdentifier();
    final int streamIdentifier = msg.streamIdentifier();
    final boolean isComplete = msg.isComplete();

    ByteBuf frag;
    if (fragments.containsKey(streamIdentifier)) {
        frag = fragments.remove(streamIdentifier);
    } else {
        frag = Unpooled.EMPTY_BUFFER;
    }

    if (isComplete && !frag.isReadable()) {
        //data chunk is not fragmented
        out.add(msg);
    } else if (!isComplete && frag.isReadable()) {
        //more message to complete
        fragments.put(streamIdentifier, Unpooled.wrappedBuffer(frag, byteBuf));
    } else if (isComplete && frag.isReadable()) {
        //last message to complete
        fragments.remove(streamIdentifier);
        SctpMessage assembledMsg = new SctpMessage(
                protocolIdentifier,
                streamIdentifier,
                Unpooled.wrappedBuffer(frag, byteBuf));
        out.add(assembledMsg);
    } else {
        //first incomplete message
        fragments.put(streamIdentifier, byteBuf);
    }
    byteBuf.retain();
}

Example 7

Source File: OioSctpChannel.java From netty-4.1.22 with Apache License 2.0

4 votes

@Override
protected void doWrite(ChannelOutboundBuffer in) throws Exception {
    if (!writeSelector.isOpen()) {
        return;
    }
    final int size = in.size();
    final int selectedKeys = writeSelector.select(SO_TIMEOUT);
    if (selectedKeys > 0) {
        final Set<SelectionKey> writableKeys = writeSelector.selectedKeys();
        if (writableKeys.isEmpty()) {
            return;
        }
        Iterator<SelectionKey> writableKeysIt = writableKeys.iterator();
        int written = 0;
        for (;;) {
            if (written == size) {
                // all written
                return;
            }
            writableKeysIt.next();
            writableKeysIt.remove();

            SctpMessage packet = (SctpMessage) in.current();
            if (packet == null) {
                return;
            }

            ByteBuf data = packet.content();
            int dataLen = data.readableBytes();
            ByteBuffer nioData;

            if (data.nioBufferCount() != -1) {
                nioData = data.nioBuffer();
            } else {
                nioData = ByteBuffer.allocate(dataLen);
                data.getBytes(data.readerIndex(), nioData);
                nioData.flip();
            }

            final MessageInfo mi = MessageInfo.createOutgoing(association(), null, packet.streamIdentifier());
            mi.payloadProtocolID(packet.protocolIdentifier());
            mi.streamNumber(packet.streamIdentifier());
            mi.unordered(packet.isUnordered());

            ch.send(nioData, mi);
            written ++;
            in.remove();

            if (!writableKeysIt.hasNext()) {
                return;
            }
        }
    }
}

Example 8

Source File: OioSctpChannel.java From netty4.0.27Learn with Apache License 2.0

4 votes

@Override
protected void doWrite(ChannelOutboundBuffer in) throws Exception {
    if (!writeSelector.isOpen()) {
        return;
    }
    final int size = in.size();
    final int selectedKeys = writeSelector.select(SO_TIMEOUT);
    if (selectedKeys > 0) {
        final Set<SelectionKey> writableKeys = writeSelector.selectedKeys();
        if (writableKeys.isEmpty()) {
            return;
        }
        Iterator<SelectionKey> writableKeysIt = writableKeys.iterator();
        int written = 0;
        for (;;) {
            if (written == size) {
                // all written
                return;
            }
            writableKeysIt.next();
            writableKeysIt.remove();

            SctpMessage packet = (SctpMessage) in.current();
            if (packet == null) {
                return;
            }

            ByteBuf data = packet.content();
            int dataLen = data.readableBytes();
            ByteBuffer nioData;

            if (data.nioBufferCount() != -1) {
                nioData = data.nioBuffer();
            } else {
                nioData = ByteBuffer.allocate(dataLen);
                data.getBytes(data.readerIndex(), nioData);
                nioData.flip();
            }

            final MessageInfo mi = MessageInfo.createOutgoing(association(), null, packet.streamIdentifier());
            mi.payloadProtocolID(packet.protocolIdentifier());
            mi.streamNumber(packet.streamIdentifier());

            ch.send(nioData, mi);
            written ++;
            in.remove();

            if (!writableKeysIt.hasNext()) {
                return;
            }
        }
    }
}