Package it.unimi.di.big.mg4j.document.tika

Class AutoDetectDocumentFactory

java.lang.Object

it.unimi.di.big.mg4j.document.AbstractDocumentFactory

it.unimi.di.big.mg4j.document.PropertyBasedDocumentFactory

it.unimi.di.big.mg4j.document.tika.AbstractTikaDocumentFactory

it.unimi.di.big.mg4j.document.tika.AbstractSimpleTikaDocumentFactory

it.unimi.di.big.mg4j.document.tika.AutoDetectDocumentFactory

All Implemented Interfaces:

DocumentFactory, FlyweightPrototype<DocumentFactory>, Serializable

public class AutoDetectDocumentFactory
extends AbstractSimpleTikaDocumentFactory

A document factory that automatically detect the type of the document content.

The metadata that will be tentatively parsed are Metadata.TITLE and GreedyTikaField.NAME: the latter will contain all Tika fields Object.toString()'d and concatenated.

Author:

Salvatore Insalaco

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class it.unimi.di.big.mg4j.document.PropertyBasedDocumentFactory

PropertyBasedDocumentFactory.MetadataKeys

Nested classes/interfaces inherited from interface it.unimi.di.big.mg4j.document.DocumentFactory

DocumentFactory.FieldType

Field Summary

Fields inherited from class it.unimi.di.big.mg4j.document.PropertyBasedDocumentFactory

defaultMetadata

Constructor Summary

Constructors

Constructor	Description
AutoDetectDocumentFactory()
AutoDetectDocumentFactory(Reference2ObjectMap<Enum<?>,Object> defaultMetadata)
AutoDetectDocumentFactory(Properties properties)
AutoDetectDocumentFactory(String[] property)

Method Summary

Modifier and Type	Method	Description
protected org.apache.tika.parser.Parser	getParser()	The parser to be used to parse this kind of documents; subclasses should return always the same instance, as Tika parsers are immutable and thread-safe.
protected List<? extends TikaField>	metadataFields()	The list of Tika fields (apart for content) that this factory provides; it returns the empty list, so most subclasses may want to override this method.

Methods inherited from class it.unimi.di.big.mg4j.document.tika.AbstractSimpleTikaDocumentFactory

copy, fields, getDocument, parseProperty

Methods inherited from class it.unimi.di.big.mg4j.document.tika.AbstractTikaDocumentFactory

fieldIndex, fieldName, fieldType, numberOfFields

Methods inherited from class it.unimi.di.big.mg4j.document.PropertyBasedDocumentFactory

ensureJustOne, getInstance, getInstance, getInstance, getInstance, parseProperties, parseProperties, resolve, resolve, resolveNotNull, sameKey, toString

Methods inherited from class it.unimi.di.big.mg4j.document.AbstractDocumentFactory

ensureFieldIndex

Methods inherited from class java.lang.Object

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

Constructor Detail

AutoDetectDocumentFactory

public AutoDetectDocumentFactory()

AutoDetectDocumentFactory

public AutoDetectDocumentFactory(Reference2ObjectMap<Enum<?>,Object> defaultMetadata)

AutoDetectDocumentFactory

public AutoDetectDocumentFactory(Properties properties)
                          throws org.apache.commons.configuration.ConfigurationException

Throws:

org.apache.commons.configuration.ConfigurationException

AutoDetectDocumentFactory

public AutoDetectDocumentFactory(String[] property)
                          throws org.apache.commons.configuration.ConfigurationException

Throws:

org.apache.commons.configuration.ConfigurationException

Method Detail

getParser

protected org.apache.tika.parser.Parser getParser()

Description copied from class: AbstractSimpleTikaDocumentFactory

The parser to be used to parse this kind of documents; subclasses should return always the same instance, as Tika parsers are immutable and thread-safe.

Specified by:

getParser in class AbstractSimpleTikaDocumentFactory

Returns:

the parser to be used to parse this kind of documents.

metadataFields

protected List<? extends TikaField> metadataFields()

Description copied from class: AbstractSimpleTikaDocumentFactory

The list of Tika fields (apart for content) that this factory provides; it returns the empty list, so most subclasses may want to override this method.

Overrides:

metadataFields in class AbstractSimpleTikaDocumentFactory

Returns:

the list of Tika fields that this factory provides.