this.header = new UdpHeader(builder, payload != null ? payload.getRawData() : new byte[0]);
this.header = new UdpHeader(builder, payload != null ? payload.getRawData() : new byte[0]);
private UdpPacket(byte[] rawData, int offset, int length) throws IllegalRawDataException { this.header = new UdpHeader(rawData, offset, length); int payloadLength = header.getLengthAsInt() - header.length(); if (payloadLength < 0) { throw new IllegalRawDataException( "The value of length field seems to be wrong: " + header.getLengthAsInt()); } if (payloadLength > length - header.length()) { payloadLength = length - header.length(); } if (payloadLength != 0) { // payloadLength is positive. PacketFactory<Packet, UdpPort> factory = PacketFactories.getFactory(Packet.class, UdpPort.class); Class<? extends Packet> class4UnknownPort = factory.getTargetClass(); Class<? extends Packet> class4DstPort = factory.getTargetClass(header.getDstPort()); UdpPort serverPort; if (class4DstPort.equals(class4UnknownPort)) { serverPort = header.getSrcPort(); } else { serverPort = header.getDstPort(); } this.payload = PacketFactories.getFactory(Packet.class, UdpPort.class) .newInstance(rawData, offset + header.length(), payloadLength, serverPort); } else { this.payload = null; } }
private UdpPacket(byte[] rawData, int offset, int length) throws IllegalRawDataException { this.header = new UdpHeader(rawData, offset, length); int payloadLength = header.getLengthAsInt() - header.length(); if (payloadLength < 0) { throw new IllegalRawDataException( "The value of length field seems to be wrong: " + header.getLengthAsInt()); } if (payloadLength > length - header.length()) { payloadLength = length - header.length(); } if (payloadLength != 0) { // payloadLength is positive. PacketFactory<Packet, UdpPort> factory = PacketFactories.getFactory(Packet.class, UdpPort.class); Class<? extends Packet> class4UnknownPort = factory.getTargetClass(); Class<? extends Packet> class4DstPort = factory.getTargetClass(header.getDstPort()); UdpPort serverPort; if (class4DstPort.equals(class4UnknownPort)) { serverPort = header.getSrcPort(); } else { serverPort = header.getDstPort(); } this.payload = PacketFactories.getFactory(Packet.class, UdpPort.class) .newInstance(rawData, offset + header.length(), payloadLength, serverPort); } else { this.payload = null; } }