Package com.drew.imaging

Class FileTypeDetector

  • public class FileTypeDetector
extends java.lang.Object
    Examines the a file's first bytes and estimates the file's type.

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static FileType detectFileType​(java.io.BufferedInputStream inputStream)
      Examines the file's bytes and estimates the file's type.

      • Methods inherited from class java.lang.Object

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

    • Method Detail

      • detectFileType

        public static FileType detectFileType​(java.io.BufferedInputStream inputStream)
                               throws java.io.IOException
        Examines the file's bytes and estimates the file's type.

        Requires a BufferedInputStream in order to mark and reset the stream to the position at which it was provided to this method once completed.

        Requires the stream to contain at least eight bytes.

        Throws:
        java.io.IOException - if an IO error occurred or the input stream ended unexpectedly.