Package org.apache.tika.detect

Class EmptyDetector

  • All Implemented Interfaces:
    java.io.Serializable, Detector
    public class EmptyDetector
extends java.lang.Object
implements Detector
    Dummy detector that returns application/octet-stream for all documents.
    See Also:
    Serialized Form

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static EmptyDetector INSTANCE
      Singleton instance of this class.

    • Constructor Summary

      Constructors 
      Constructor Description
      EmptyDetector()  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      MediaType detect​(java.io.InputStream input, Metadata metadata)
      Detects the content type of the given input document.

      • Methods inherited from class java.lang.Object

        equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • INSTANCE

        public static final EmptyDetector INSTANCE
        Singleton instance of this class.

    • Constructor Detail

      • EmptyDetector

        public EmptyDetector()

    • Method Detail

      • detect

        public MediaType detect​(java.io.InputStream input,
                        Metadata metadata)
                 throws java.io.IOException
        Description copied from interface: Detector
        Detects the content type of the given input document. Returns application/octet-stream if the type of the document can not be detected.

        If the document input stream is not available, then the first argument may be null. Otherwise the detector may read bytes from the start of the stream to help in type detection. The given stream is guaranteed to support the mark feature and the detector is expected to mark the stream before reading any bytes from it, and to reset the stream before returning. The stream must not be closed by the detector.

        The given input metadata is only read, not modified, by the detector.

        Specified by:
        detect in interface Detector
        Parameters:
        input - document input stream, or null
        metadata - input metadata for the document
        Returns:
        detected media type, or application/octet-stream
        Throws:
        java.io.IOException - if the document input stream could not be read