Class FileTypeDetector

java.lang.Object

org.apache.pdfbox.util.filetypedetector.FileTypeDetector

public final class FileTypeDetector
extends Object

Author:

Drew Noakes code taken from metadata-extractor 2016-01-04 latest commit number 73f1a48 Examines the file's first bytes and estimates the file's type.

Method Summary

Modifier and Type	Method	Description
static FileType	detectFileType(byte[] fileBytes)
static FileType	detectFileType(BufferedInputStream inputStream)	Examines the file's first bytes and estimates the file's type.

Methods inherited from class Object

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

Method Details

detectFileType

public static FileType detectFileType(BufferedInputStream inputStream)
                               throws IOException

Examines the file's first 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.

Parameters:

inputStream - a buffered input stream of the file to examine.

Returns:

the file type.

Throws:

IOException - if an IO error occurred or the input stream ended unexpectedly.

detectFileType

public static FileType detectFileType(byte[] fileBytes)
                               throws IOException

Throws:

IOException