Package org.apache.tika.parser.recognition.tf

Class TensorflowRESTRecogniser

java.lang.Object

org.apache.tika.parser.recognition.tf.TensorflowRESTRecogniser

All Implemented Interfaces:

Initializable, ObjectRecogniser

Direct Known Subclasses:

TensorflowRESTVideoRecogniser

public class TensorflowRESTRecogniser
extends Object
implements ObjectRecogniser

Tensor Flow image recogniser which has high performance. This implementation uses Tensorflow via REST API.

NOTE : https://wiki.apache.org/tika/TikaAndVision

Since:

Apache Tika 1.14

Field Summary

Fields

Modifier and Type	Field	Description
protected URI	apiBaseUri
protected URI	apiUri
protected boolean	available
protected URI	healthUri
protected static final String	LABEL_LANG
protected double	minConfidence
protected int	topN

Constructor Summary

Constructors

Constructor	Description
TensorflowRESTRecogniser()

Method Summary

Modifier and Type	Method	Description
void	checkInitialization(InitializableProblemHandler handler)
protected URI	getApiUri(Metadata metadata)
Set<MediaType>	getSupportedMimes()	The mimes supported by this recogniser
void	initialize(Map<String,Param> params)	This is the hook for configuring the recogniser
boolean	isAvailable()	Is this service available
List<RecognisedObject>	recognise(InputStream stream, ContentHandler handler, Metadata metadata, ParseContext context)	Recognise the objects in the stream

Methods inherited from class java.lang.Object

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

Field Details

LABEL_LANG

protected static final String LABEL_LANG

See Also:

• Constant Field Values

apiBaseUri

@Field
protected URI apiBaseUri

topN

@Field
protected int topN

minConfidence

@Field
protected double minConfidence

apiUri

protected URI apiUri

healthUri

protected URI healthUri

available

protected boolean available

Constructor Details

TensorflowRESTRecogniser

public TensorflowRESTRecogniser()

Method Details

getApiUri

protected URI getApiUri(Metadata metadata)

getSupportedMimes

public Set<MediaType> getSupportedMimes()

Description copied from interface: ObjectRecogniser

The mimes supported by this recogniser

Specified by:

getSupportedMimes in interface ObjectRecogniser

Returns:

set of mediatypes

isAvailable

public boolean isAvailable()

Description copied from interface: ObjectRecogniser

Is this service available

Specified by:

isAvailable in interface ObjectRecogniser

Returns:

true when the service is available, false otherwise

initialize

public void initialize(Map<String,Param> params)
                throws TikaConfigException

Description copied from interface: ObjectRecogniser

This is the hook for configuring the recogniser

Specified by:

initialize in interface Initializable

Specified by:

initialize in interface ObjectRecogniser

Parameters:

params - configuration instance in the form of context

Throws:

TikaConfigException - when there is an issue with configuration

checkInitialization

public void checkInitialization(InitializableProblemHandler handler)
                         throws TikaConfigException

Specified by:

checkInitialization in interface Initializable

Parameters:

handler - if there is a problem and no custom initializableProblemHandler has been configured via Initializable parameters, this is called to respond.

Throws:

TikaConfigException

recognise

public List<RecognisedObject> recognise(InputStream stream,
 ContentHandler handler,
 Metadata metadata,
 ParseContext context)
                                 throws IOException,
SAXException,
TikaException

Description copied from interface: ObjectRecogniser

Recognise the objects in the stream

Specified by:

recognise in interface ObjectRecogniser

Parameters:

stream - content stream

handler - tika's content handler

metadata - metadata instance

context - parser context

Returns:

List of RecognisedObjects

Throws:

IOException - when an I/O error occurs

SAXException - when an issue with XML occurs

TikaException - any generic error