org.apache.tika.xmp.convert
Class AbstractConverter

java.lang.Object
  org.apache.tika.xmp.convert.AbstractConverter

All Implemented Interfaces:

ITikaToXMPConverter

Direct Known Subclasses:

GenericConverter, MSOfficeBinaryConverter, MSOfficeXMLConverter, OpenDocumentConverter, RTFConverter

public abstract class AbstractConverter
extends Object
implements ITikaToXMPConverter

Base class for Tika Metadata to XMP converter which provides some needed common functionality.

Field Summary

protected com.adobe.xmp.XMPMeta

meta

Constructor Summary

AbstractConverter()

Method Summary

protected void	createArrayProperty(Property metadataProperty, String nsDc, String arrayProperty, int arrayType)
protected void	createArrayProperty(String tikaKey, String ns, String propertyName, int arrayType) Creates an array property from a list of values.
protected void	createCommaSeparatedArray(Property metadataProperty, String nsDc, String arrayProperty, int arrayType)
protected void	createCommaSeparatedArray(String tikaKey, String ns, String propertyName, int arrayType) Creates an array property from a comma separated list.
protected void	createLangAltProperty(Property metadataProperty, String ns, String propertyName)
protected void	createLangAltProperty(String tikaKey, String ns, String propertyName) Creates a language alternative property in the x-default language
protected void	createProperty(Property metadataProperty, String ns, String propertyName)
protected void	createProperty(String tikaKey, String ns, String propertyName) Creates a simple property.
protected abstract Set<Namespace>	getAdditionalNamespaces() Every Converter has to provide information about namespaces that are used additionally to the core set of XMP namespaces.
com.adobe.xmp.XMPMeta	getXMPMeta()
abstract com.adobe.xmp.XMPMeta	process(Metadata metadata) Converts a Tika Metadata-object into an XMPMeta containing the useful properties.
protected void	registerNamespaces(Set<Namespace> namespaces) Registers a number Namespace information with XMPCore.
void	setMetadata(Metadata metadata)

Methods inherited from class java.lang.Object

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

Field Detail

meta

protected com.adobe.xmp.XMPMeta meta

Constructor Detail

AbstractConverter

public AbstractConverter()
                  throws TikaException

Throws:

TikaException

Method Detail

process

public abstract com.adobe.xmp.XMPMeta process(Metadata metadata)
                                       throws com.adobe.xmp.XMPException

Description copied from interface: ITikaToXMPConverter

Converts a Tika Metadata-object into an XMPMeta containing the useful properties.

Specified by:

process in interface ITikaToXMPConverter

Parameters:

metadata - a Tika Metadata object

Returns:

Returns an XMPMeta object.

Throws:

com.adobe.xmp.XMPException - If an error occurs during the creation of the XMP object.

getAdditionalNamespaces

protected abstract Set<Namespace> getAdditionalNamespaces()

Every Converter has to provide information about namespaces that are used additionally to the core set of XMP namespaces.

Returns:

the additional namespace information

setMetadata

public void setMetadata(Metadata metadata)

getXMPMeta

public com.adobe.xmp.XMPMeta getXMPMeta()

registerNamespaces

protected void registerNamespaces(Set<Namespace> namespaces)
                           throws TikaException

Registers a number Namespace information with XMPCore. Any already registered namespace is not registered again.

Parameters:

namespaces - the list of namespaces to be registered

Throws:

TikaException - in case a namespace oculd not be registered

createProperty

protected void createProperty(Property metadataProperty,
                              String ns,
                              String propertyName)
                       throws com.adobe.xmp.XMPException

Throws:

com.adobe.xmp.XMPException

See Also:

createProperty(String, String, String)

createProperty

protected void createProperty(String tikaKey,
                              String ns,
                              String propertyName)
                       throws com.adobe.xmp.XMPException

Creates a simple property.

Parameters:

tikaKey - Key in the Tika metadata map

ns - namespace the property should be created in

propertyName - name of the property

Throws:

com.adobe.xmp.XMPException - if the property could not be created

createLangAltProperty

protected void createLangAltProperty(Property metadataProperty,
                                     String ns,
                                     String propertyName)
                              throws com.adobe.xmp.XMPException

Throws:

com.adobe.xmp.XMPException

See Also:

createLangAltProperty(String, String, String)

createLangAltProperty

protected void createLangAltProperty(String tikaKey,
                                     String ns,
                                     String propertyName)
                              throws com.adobe.xmp.XMPException

Creates a language alternative property in the x-default language

Parameters:

tikaKey - Key in the Tika metadata map

ns - namespace the property should be created in

propertyName - name of the property

Throws:

com.adobe.xmp.XMPException - if the property could not be created

createArrayProperty

protected void createArrayProperty(Property metadataProperty,
                                   String nsDc,
                                   String arrayProperty,
                                   int arrayType)
                            throws com.adobe.xmp.XMPException

Throws:

com.adobe.xmp.XMPException

createArrayProperty

protected void createArrayProperty(String tikaKey,
                                   String ns,
                                   String propertyName,
                                   int arrayType)
                            throws com.adobe.xmp.XMPException

Creates an array property from a list of values.

Parameters:

tikaKey - Key in the Tika metadata map

ns - namespace the property should be created in

propertyName - name of the property

arrayType - depicts which kind of array shall be created

Throws:

com.adobe.xmp.XMPException - if the property could not be created

createCommaSeparatedArray

protected void createCommaSeparatedArray(Property metadataProperty,
                                         String nsDc,
                                         String arrayProperty,
                                         int arrayType)
                                  throws com.adobe.xmp.XMPException

Throws:

com.adobe.xmp.XMPException

createCommaSeparatedArray

protected void createCommaSeparatedArray(String tikaKey,
                                         String ns,
                                         String propertyName,
                                         int arrayType)
                                  throws com.adobe.xmp.XMPException

Creates an array property from a comma separated list.

Parameters:

tikaKey - Key in the Tika metadata map

ns - namespace the property should be created in

propertyName - name of the property

arrayType - depicts which kind of array shall be created

Throws:

com.adobe.xmp.XMPException - if the property could not be created