Package org.apache.tika.parser.geopkg

Class GeoPkgParser

java.lang.Object

org.apache.tika.parser.sqlite3.SQLite3Parser

org.apache.tika.parser.geopkg.GeoPkgParser

All Implemented Interfaces:

Serializable, Initializable, Parser

public class GeoPkgParser
extends SQLite3Parser

Customization of sqlite parser to skip certain common blob columns.

The motivation is that "geom" and "data" columns are intrinsic to geopkg and are not regular embedded files. Tika treats all blob columns as, potentially, embedded files -- this can add dramatically to the time to parse geopkg files, which might have hundreds of thousands of uninteresting blobs.

Users may modify which columns are ignored or turn off "ignoring" of all solumns.

To add a column to the default "ignore blob columns" via tika-config.xml:

   
     
     
       
         geom
         data
         something
       
     
   
   }

Or use an empty list to parse all columns.

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.apache.tika.parser.sqlite3.SQLite3Parser

SQLITE_APPLICATION_ID, SQLITE_USER_VERSION, SQLITE3_PREFIX

Constructor Summary

Constructors

Constructor	Description
GeoPkgParser()	Checks to see if class is available for org.sqlite.JDBC.

Method Summary

Modifier and Type	Method	Description
void	checkInitialization(InitializableProblemHandler problemHandler)
Set<MediaType>	getSupportedTypes(ParseContext context)	Returns the set of media types supported by this parser when used with the given parse context.
void	initialize(Map<String,Param> params)	No-op
void	parse(InputStream stream, ContentHandler handler, Metadata metadata, ParseContext context)	Parses a document stream into a sequence of XHTML SAX events.
void	setIgnoreBlobColumns(List<String> ignoreBlobColumns)

Methods inherited from class java.lang.Object

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

Constructor Details

GeoPkgParser

public GeoPkgParser()

Checks to see if class is available for org.sqlite.JDBC.

If not, this class will return an EMPTY_SET for getSupportedTypes()

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.

Specified by:

getSupportedTypes in interface Parser

Overrides:

getSupportedTypes in class SQLite3Parser

Parameters:

context - parse context

Returns:

immutable set of media types

parse

public void parse(InputStream stream,
 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.

Specified by:

parse in interface Parser

Overrides:

parse in class SQLite3Parser

Parameters:

stream - the document stream (input)

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

setIgnoreBlobColumns

@Field
public void setIgnoreBlobColumns(List<String> ignoreBlobColumns)

initialize

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

No-op

Specified by:

initialize in interface Initializable

Overrides:

initialize in class SQLite3Parser

Parameters:

params - params to use for initialization

Throws:

TikaConfigException

checkInitialization

public void checkInitialization(InitializableProblemHandler problemHandler)
                         throws TikaConfigException

Specified by:

checkInitialization in interface Initializable

Overrides:

checkInitialization in class SQLite3Parser

Parameters:

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

Throws:

TikaConfigException