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

static String	CSV_MIMETYPE
static String	N3_MIMETYPE
static String	NQUADS_MIMETYPE
static String	RESOURCE_NAME
static String	TURTLE_MIMETYPE

Constructor Summary

TikaMIMETypeDetector()

TikaMIMETypeDetector(Purifier purifier)

Method Summary

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

N3_MIMETYPE

public static final String N3_MIMETYPE

See Also:

Constant Field Values

NQUADS_MIMETYPE

public static final String NQUADS_MIMETYPE

See Also:

Constant Field Values

TURTLE_MIMETYPE

public static final String TURTLE_MIMETYPE

See Also:

Constant Field Values

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

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

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

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

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.