Package org.apache.any23.mime

Class TikaMIMETypeDetector

java.lang.Object

org.apache.any23.mime.TikaMIMETypeDetector

All Implemented Interfaces:

MIMETypeDetector

public class TikaMIMETypeDetector
extends Object
implements MIMETypeDetector

Implementation of MIMETypeDetector based on Apache Tika.

Author:

Michele Mostarda (michele.mostarda@gmail.com), Davide Palmisano (dpalmisano@gmail.com)

Field Summary

Fields

Modifier and Type	Field	Description
static String	CSV_MIMETYPE
static String	RESOURCE_NAME

Constructor Summary

Constructors

Constructor	Description
TikaMIMETypeDetector()
TikaMIMETypeDetector(Purifier purifier)

Method Summary

Modifier and Type	Method	Description
static boolean	checkCSVFormat(InputStream is)	Checks if the stream contains a valid CSV pattern.
static boolean	checkN3Format(InputStream is)	Checks if the stream contains the N3 triple patterns.
static boolean	checkNQuadsFormat(InputStream is)	Checks if the stream contains the NQuads patterns.
static boolean	checkTurtleFormat(InputStream is)	Checks if the stream contains Turtle triple patterns.
MIMEType	guessMIMEType(String fileName, InputStream input, MIMEType mimeTypeFromMetadata)	Estimates the MIME type of the content of input file.

Methods inherited from class java.lang.Object

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

Field Detail

CSV_MIMETYPE

public static final String CSV_MIMETYPE

See Also:

Constant Field Values

RESOURCE_NAME

public static final String RESOURCE_NAME

See Also:

Constant Field Values

Constructor Detail

TikaMIMETypeDetector

public TikaMIMETypeDetector(Purifier purifier)

TikaMIMETypeDetector

public TikaMIMETypeDetector()

Method Detail

checkN3Format

public static boolean checkN3Format(InputStream is)
                             throws IOException

Checks if the stream contains the N3 triple patterns.

Parameters:

is - input stream to be verified.

Returns:

true if N3 patterns are detected, false otherwise.

Throws:

IOException - if there is an error checking the InputStream

checkNQuadsFormat

public static boolean checkNQuadsFormat(InputStream is)
                                 throws IOException

Checks if the stream contains the NQuads patterns.

Parameters:

is - input stream to be verified.

Returns:

true if N3 patterns are detected, false otherwise.

Throws:

IOException - if there is an error checking the InputStream

checkTurtleFormat

public static boolean checkTurtleFormat(InputStream is)
                                 throws IOException

Checks if the stream contains Turtle triple patterns.

Parameters:

is - input stream to be verified.

Returns:

true if Turtle patterns are detected, false otherwise.

Throws:

IOException - if there is an error checking the InputStream

checkCSVFormat

public static boolean checkCSVFormat(InputStream is)
                              throws IOException

Checks if the stream contains a valid CSV pattern.

Parameters:

is - input stream to be verified.

Returns:

true if CSV patterns are detected, false otherwise.

Throws:

IOException - if there is an error checking the InputStream

guessMIMEType

public MIMEType guessMIMEType(String fileName,
                              InputStream input,
                              MIMEType mimeTypeFromMetadata)

Estimates the MIME type of the content of input file. The input stream must be resettable.

Specified by:

guessMIMEType in interface MIMETypeDetector

Parameters:

fileName - name of the data source.

input - null or a resettable input stream containing data.

mimeTypeFromMetadata - mimetype declared in metadata.

Returns:

the supposed mime type or null if nothing appropriate found.

Throws:

IllegalArgumentException - if input is not null and is not resettable.