Package org.apache.tika.sax

Class ToTextContentHandler

java.lang.Object

org.xml.sax.helpers.DefaultHandler

org.apache.tika.sax.ToTextContentHandler

All Implemented Interfaces:

ContentHandler, DTDHandler, EntityResolver, ErrorHandler

Direct Known Subclasses:

ToXMLContentHandler

public class ToTextContentHandler
extends DefaultHandler

SAX event handler that writes all character content out to a character stream. No escaping or other transformations are made on the character content.

As of Tika 1.20, this handler ignores content within <script> and <style> tags.

Since:

Apache Tika 0.10

Constructor Summary

Constructors

Constructor	Description
ToTextContentHandler()	Creates a content handler that writes character events to an internal string buffer.
ToTextContentHandler(OutputStream stream)	Creates a content handler that writes character events to the given output stream using the platform default encoding.
ToTextContentHandler(OutputStream stream, String encoding)	Creates a content handler that writes character events to the given output stream using the given encoding.
ToTextContentHandler(Writer writer)	Creates a content handler that writes character events to the given writer.

Method Summary

Modifier and Type	Method	Description
void	characters(char[] ch, int start, int length)	Writes the given characters to the given character stream.
void	endDocument()	Flushes the character stream so that no characters are forgotten in internal buffers.
void	endElement(String uri, String localName, String qName)
void	ignorableWhitespace(char[] ch, int start, int length)	Writes the given ignorable characters to the given character stream.
void	startElement(String uri, String localName, String qName, Attributes atts)
String	toString()	Returns the contents of the internal string buffer where all the received characters have been collected.

Methods inherited from class org.xml.sax.helpers.DefaultHandler

endPrefixMapping, error, fatalError, notationDecl, processingInstruction, resolveEntity, setDocumentLocator, skippedEntity, startDocument, startPrefixMapping, unparsedEntityDecl, warning

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ToTextContentHandler

public ToTextContentHandler(Writer writer)

Creates a content handler that writes character events to the given writer.

Parameters:

writer - writer

ToTextContentHandler

public ToTextContentHandler(OutputStream stream)

Creates a content handler that writes character events to the given output stream using the platform default encoding.

Parameters:

stream - output stream

ToTextContentHandler

public ToTextContentHandler(OutputStream stream,
                            String encoding)
                     throws UnsupportedEncodingException

Creates a content handler that writes character events to the given output stream using the given encoding.

Parameters:

stream - output stream

encoding - output encoding

Throws:

UnsupportedEncodingException - if the encoding is unsupported

ToTextContentHandler

public ToTextContentHandler()

Creates a content handler that writes character events to an internal string buffer. Use the toString() method to access the collected character content.

Method Detail

characters

public void characters(char[] ch,
                       int start,
                       int length)
                throws SAXException

Writes the given characters to the given character stream.

Specified by:

characters in interface ContentHandler

Overrides:

characters in class DefaultHandler

Throws:

SAXException

ignorableWhitespace

public void ignorableWhitespace(char[] ch,
                                int start,
                                int length)
                         throws SAXException

Writes the given ignorable characters to the given character stream. The default implementation simply forwards the call to the characters(char[], int, int) method.

Specified by:

ignorableWhitespace in interface ContentHandler

Overrides:

ignorableWhitespace in class DefaultHandler

Throws:

SAXException

endDocument

public void endDocument()
                 throws SAXException

Flushes the character stream so that no characters are forgotten in internal buffers.

Specified by:

endDocument in interface ContentHandler

Overrides:

endDocument in class DefaultHandler

Throws:

SAXException - if the stream can not be flushed

See Also:

TIKA-179

startElement

public void startElement(String uri,
                         String localName,
                         String qName,
                         Attributes atts)
                  throws SAXException

Specified by:

startElement in interface ContentHandler

Overrides:

startElement in class DefaultHandler

Throws:

SAXException

endElement

public void endElement(String uri,
                       String localName,
                       String qName)
                throws SAXException

Specified by:

endElement in interface ContentHandler

Overrides:

endElement in class DefaultHandler

Throws:

SAXException

toString

public String toString()

Returns the contents of the internal string buffer where all the received characters have been collected. Only works when this object was constructed using the empty default constructor or by passing a StringWriter to the other constructor.

Overrides:

toString in class Object