Field Detail

• DEFAULT_MAX_INPUT_LOOKAHEAD

  public static final int DEFAULT_MAX_INPUT_LOOKAHEAD

  By default we will look ahead at most 64 bytes; in most cases, much less (4 bytes or so) is needed, but we will allow bit more leniency to support data formats that need more complex heuristics.

  See Also:

  Constant Field Values

• _readers

  protected final ObjectReader[] _readers

  Ordered list of readers which both represent data formats to detect (in precedence order, starting with highest) and contain factories used for actual detection.

• _optimalMatch

  protected final MatchStrength _optimalMatch

  Strength of match we consider to be good enough to be used without checking any other formats. Default value is MatchStrength.SOLID_MATCH,

• _minimalMatch

  protected final MatchStrength _minimalMatch

  Strength of minimal match we accept as the answer, unless better matches are found. Default value is MatchStrength.WEAK_MATCH,

• _maxInputLookahead

  protected final int _maxInputLookahead

  Maximum number of leading bytes of the input that we can read to determine data format.

  Default value is DEFAULT_MAX_INPUT_LOOKAHEAD.

Constructor Detail

• DataFormatReaders

  public DataFormatReaders(ObjectReader... detectors)

• DataFormatReaders

  public DataFormatReaders(Collection<ObjectReader> detectors)

Method Detail

• withOptimalMatch

  public DataFormatReaders withOptimalMatch(MatchStrength optMatch)

• withMinimalMatch

  public DataFormatReaders withMinimalMatch(MatchStrength minMatch)

• with

  public DataFormatReaders with(ObjectReader[] readers)

• withMaxInputLookahead

  public DataFormatReaders withMaxInputLookahead(int lookaheadBytes)

• with

  public DataFormatReaders with(DeserializationConfig config)

• withType

  public DataFormatReaders withType(JavaType type)

• findFormat

  public DataFormatReaders.Match findFormat(InputStream in)
                                     throws IOException

  Method to call to find format that content (accessible via given InputStream) given has, as per configuration of this detector instance.

  Returns:

  Matcher object which contains result; never null, even in cases where no match (with specified minimal match strength) is found.

  Throws:

  IOException

• findFormat

  public DataFormatReaders.Match findFormat(byte[] fullInputData)
                                     throws IOException

  Method to call to find format that given content (full document) has, as per configuration of this detector instance.

  Returns:

  Matcher object which contains result; never null, even in cases where no match (with specified minimal match strength) is found.

  Throws:

  IOException

• findFormat

  public DataFormatReaders.Match findFormat(byte[] fullInputData,
                                   int offset,
                                   int len)
                                     throws IOException

  Method to call to find format that given content (full document) has, as per configuration of this detector instance.

  Returns:

  Matcher object which contains result; never null, even in cases where no match (with specified minimal match strength) is found.

  Throws:

  IOException

  Since:

  2.1

• toString

  public String toString()

  Overrides:

  toString in class Object