Package org.apache.tika.config.loader

Class DetectorLoader

java.lang.Object

org.apache.tika.config.loader.AbstractSpiComponentLoader<Detector>

org.apache.tika.config.loader.DetectorLoader

All Implemented Interfaces:

ComponentLoader<Detector>

public class DetectorLoader
extends AbstractSpiComponentLoader<Detector>

Loader for detectors with support for SPI fallback via "default-detector" marker.

Constructor Summary

Constructors

Constructor	Description
DetectorLoader()

Method Summary

Modifier and Type	Method	Description
protected Detector	createDefaultComposite(Set<Class<? extends Detector>> exclusions, LoaderContext context)	Create the SPI-backed default composite with exclusions.
protected Detector	handleSpecialName(String name, com.fasterxml.jackson.databind.JsonNode configNode, LoaderContext context)	Handle special component names that require custom loading.
protected Detector	loadComponent(String name, com.fasterxml.jackson.databind.JsonNode configNode, LoaderContext context)	Load a single component from config.
protected Detector	wrapInComposite(List<Detector> detectors, LoaderContext context)	Wrap a list of components in a composite.

Methods inherited from class org.apache.tika.config.loader.AbstractSpiComponentLoader

decorateDefaultComposite, getComponentClass, getDefaultMarkerName, getSectionName, load, postProcess, postProcessList, unwrapClass

Methods inherited from class java.lang.Object

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

Constructor Details

DetectorLoader

public DetectorLoader()

Method Details

loadComponent

protected Detector loadComponent(String name,
 com.fasterxml.jackson.databind.JsonNode configNode,
 LoaderContext context)
                          throws TikaConfigException

Description copied from class: AbstractSpiComponentLoader

Load a single component from config. Subclasses can apply decorations (e.g., mime filtering for parsers).

Specified by:

loadComponent in class AbstractSpiComponentLoader<Detector>

Parameters:

name - the component name (friendly name or FQCN)

configNode - the JSON configuration for this component

context - the loader context

Returns:

the loaded component

Throws:

TikaConfigException - if loading fails

createDefaultComposite

protected Detector createDefaultComposite(Set<Class<? extends Detector>> exclusions,
 LoaderContext context)

Description copied from class: AbstractSpiComponentLoader

Create the SPI-backed default composite with exclusions. E.g., new DefaultParser(..., exclusions) or new DefaultDetector(..., exclusions)

Specified by:

createDefaultComposite in class AbstractSpiComponentLoader<Detector>

Parameters:

exclusions - classes to exclude from SPI loading

context - the loader context

Returns:

the default composite

wrapInComposite

protected Detector wrapInComposite(List<Detector> detectors,
 LoaderContext context)

Description copied from class: AbstractSpiComponentLoader

Wrap a list of components in a composite. E.g., new CompositeParser(registry, list) or new CompositeDetector(registry, list)

Specified by:

wrapInComposite in class AbstractSpiComponentLoader<Detector>

Parameters:

detectors - the list of components

context - the loader context

Returns:

the composite component

handleSpecialName

protected Detector handleSpecialName(String name,
 com.fasterxml.jackson.databind.JsonNode configNode,
 LoaderContext context)
                              throws TikaConfigException

Description copied from class: AbstractSpiComponentLoader

Handle special component names that require custom loading. E.g., "mime-types" for detectors returns TikaLoader.getMimeTypes(). Return null for normal handling.

Overrides:

handleSpecialName in class AbstractSpiComponentLoader<Detector>

Parameters:

name - the component name

configNode - the JSON configuration

context - the loader context

Returns:

the special component, or null for normal handling

Throws:

TikaConfigException - if loading fails