Package org.apache.tika.parser.microsoft

Class EMFParser

java.lang.Object

org.apache.tika.parser.microsoft.EMFParser

All Implemented Interfaces:

Serializable, SelfConfiguring, Parser, RenderingParser

public class EMFParser
extends Object

Extracts files embedded in EMF and offers a very rough capability to extract text if there is text stored in the EMF.

To improve text extraction, we'd have to implement quite a bit more at the POI level. We'd want to track changes in font and use that information for identifying character sets, inserting spaces and new lines.

We're also relying on storage order for text order, which isn't great. We'd have to do something like what PDFBox or XPS do to sort the runs and then put the cow back together from the hamburger...lol...

Under "pages": {"emit": {"enabled": true}} (the parse-context block, or the parser's own overlay) the image is rendered through the configured Renderer, the POIMetafileRenderer by default, and emitted as a TikaCoreProperties.EmbeddedResourceType.RENDERING embedded document, the way the PDF parser emits page renderings, so a client can obtain a raster preview of a vector thumbnail such as the docProps thumbnail of a Word document.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static Property	EMF_ICON_ONLY
static Property	EMF_ICON_STRING

Constructor Summary

Constructors

Constructor	Description
EMFParser()
EMFParser(JsonConfig jsonConfig)
EMFParser(MetafileParserConfig config)

Method Summary

Modifier and Type	Method	Description
Set<MediaType>	getSupportedTypes(ParseContext context)	Returns the set of media types supported by this parser when used with the given parse context.
void	parse(TikaInputStream tis, ContentHandler handler, Metadata metadata, ParseContext context)	Parses a document stream into a sequence of XHTML SAX events.
void	setRenderer(Renderer renderer)

Methods inherited from class java.lang.Object

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

Field Details

EMF_ICON_ONLY

public static Property EMF_ICON_ONLY

EMF_ICON_STRING

public static Property EMF_ICON_STRING

Constructor Details

EMFParser

public EMFParser()

EMFParser

public EMFParser(MetafileParserConfig config)

EMFParser

public EMFParser(JsonConfig jsonConfig)

Method Details

getSupportedTypes

public Set<MediaType> getSupportedTypes(ParseContext context)

Description copied from interface: Parser

Returns the set of media types supported by this parser when used with the given parse context.

Parameters:

context - parse context

Returns:

immutable set of media types

parse

public void parse(TikaInputStream tis,
 ContentHandler handler,
 Metadata metadata,
 ParseContext context)
           throws IOException,
SAXException,
TikaException

Description copied from interface: Parser

Parses a document stream into a sequence of XHTML SAX events. Fills in related document metadata in the given metadata object.

The given document stream is consumed but not closed by this method. The responsibility to close the stream remains on the caller.

Information about the parsing context can be passed in the context parameter. See the parser implementations for the kinds of context information they expect.

Parameters:

handler - handler for the XHTML SAX events (output)

metadata - document metadata (input and output)

context - parse context

Throws:

IOException - if the document stream could not be read

SAXException - if the SAX events could not be processed

TikaException - if the document could not be parsed

setRenderer

public void setRenderer(Renderer renderer)

Specified by:

setRenderer in interface RenderingParser