org.apache.tika.parser
Class DelegatingParser

java.lang.Object
  org.apache.tika.parser.DelegatingParser

All Implemented Interfaces:

Parser

Direct Known Subclasses:

Bzip2Parser, GzipParser, PackageParser

public class DelegatingParser
extends Object
implements Parser

Base class for parser implementations that want to delegate parts of the task of parsing an input document to another parser. The delegate parser is looked up from the parsing context using the Parser class as the key.

Since:

Apache Tika 0.4, major changes in Tika 0.5

Constructor Summary

DelegatingParser()

Method Summary

void	parse(InputStream stream, ContentHandler handler, Metadata metadata) Deprecated. This method will be removed in Apache Tika 1.0.
void	parse(InputStream stream, ContentHandler handler, Metadata metadata, ParseContext context) Looks up the delegate parser from the parsing context and delegates the parse operation to it.

Methods inherited from class java.lang.Object

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

Constructor Detail

DelegatingParser

public DelegatingParser()

Method Detail

parse

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

Looks up the delegate parser from the parsing context and delegates the parse operation to it. If a delegate parser is not found, then an empty XHTML document is returned.

Subclasses should override this method to parse the top level structure of the given document stream. Parsed sub-streams can be passed to this base class method to be parsed by the configured delegate parser.

Specified by:

parse in interface Parser

Parameters:

stream - the document stream (input)

handler - handler for the XHTML SAX events (output)

metadata - document metadata (input and output)

context - parse context

Throws:

SAXException - if the SAX events could not be processed

IOException - if the document stream could not be read

TikaException - if the document could not be parsed

parse

public void parse(InputStream stream,
                  ContentHandler handler,
                  Metadata metadata)
           throws IOException,
                  SAXException,
                  TikaException

Deprecated. This method will be removed in Apache Tika 1.0.

Description copied from interface: Parser

The parse() method from Tika 0.4 and earlier. Please use the #parse(InputStream, ContentHandler, Metadata, Map) method instead in new code. Calls to this backwards compatibility method are forwarded to the new parse() method with an empty parse context.

Specified by:

parse in interface Parser

Throws:

IOException

SAXException

TikaException