Class BreakerSectionDecorator<DECORATEE extends Section>

java.lang.Object
org.refcodes.serial.AbstractTransmissionDecorator<DECORATEE>
org.refcodes.serial.BreakerSectionDecorator<DECORATEE>
Type Parameters:
DECORATEE - The Section type describing the Section subclass to be "enriched" with breaking functionality.
All Implemented Interfaces:
Serializable, org.refcodes.mixin.DecorateeAccessor<DECORATEE>, org.refcodes.mixin.LengthAccessor, org.refcodes.mixin.Resetable, org.refcodes.mixin.Schemable, DecoratorSection<DECORATEE>, Section, Transmission, Transmission.TransmissionMixin

public class BreakerSectionDecorator<DECORATEE extends Section> extends AbstractTransmissionDecorator<DECORATEE> implements DecoratorSection<DECORATEE>, org.refcodes.mixin.Resetable
The BreakerSectionDecorator is a DecoratorSection build to test error detection and error correction Transmission implementations such as the CrcSectionDecorator or the StopAndWaitSectionDecorator. To achieve this, the BreakerSectionDecorator can be configured to "break" deserialization for a given number of times by intercepting into the according Transmission's methods and throwing a TransmissionSequenceException.
See Also:
  • Field Details

    • BREAK_NUMBER

      public static final String BREAK_NUMBER
      See Also:
    • BREAK_COUNT

      public static final String BREAK_COUNT
      See Also:
    • _breakNumber

      protected int _breakNumber
    • _breakCount

      protected int _breakCount
    • _startTime

      protected long _startTime
  • Constructor Details

    • BreakerSectionDecorator

      protected BreakerSectionDecorator()
      Constructs an empty BreakerSectionDecorator.
    • BreakerSectionDecorator

      public BreakerSectionDecorator(DECORATEE aDecoratee, int aBreakNumber)
      Constructs a BreakerSectionDecorator instance with the given decoratee breaking deserialization of the decorated segments by the given number of times.fter the total number of breaking the decoratee has been reached, the decorator behaves transparent (it just delegates without breaking the decoratee any more). This is good to see if a retry mechanism works when using some kind of error correction segment.
      Parameters:
      aDecoratee - The decoratee to be contained by this facade.
      aBreakNumber - The number of times to break deserialization.
  • Method Details

    • fromTransmission

      public void fromTransmission(Sequence aSequence, int aOffset, int aLength) throws TransmissionException
      (Re-)initializes this instance with the the given Sequence data.
      Specified by:
      fromTransmission in interface Section
      Parameters:
      aSequence - The Sequence data from which to (re-)initialize this instance.
      aOffset - The offset where to start processing the provided Sequence.
      aLength - The length of data assigned by the Sequence.
      Throws:
      TransmissionException - thrown in case a given Sequence cannot be processed.
    • receiveFrom

      public void receiveFrom(InputStream aInputStream, int aLength, OutputStream aReturnStream) throws IOException
      (Re-)initializes this instance by receiving the according Sequence from the given InputStream. Implementations providing error correction methods use the provided feedback OutputStream to do some sort of "stop-and-wait ARQ" or apply similar methods to ensure correctness of the received data.
      Specified by:
      receiveFrom in interface Section
      Parameters:
      aInputStream - The InputStream from which to read the instance's (re-)initialization Sequence from.
      aLength - The length of data assigned by the byte array.
      aReturnStream - An OutputStream being the return channel to handle "stop-and-wait ARQ" or the like in case of a bidirectional connection. Can be null in case we have a unidirectional connection.
      Throws:
      IOException - thrown in case reading data from the InputStream caused problems.
      TransmissionException - thrown in case a given InputStream bytes cannot be processed.
    • toSchema

      public SerialSchema toSchema()
      Specified by:
      toSchema in interface org.refcodes.mixin.Schemable
      Specified by:
      toSchema in interface Transmission
    • reset

      public void reset()
      Specified by:
      reset in interface org.refcodes.mixin.Resetable