Package org.opencastproject.metadata.mpeg7

Class Mpeg7Parser

java.lang.Object

org.xml.sax.helpers.DefaultHandler

org.opencastproject.metadata.mpeg7.Mpeg7Parser

All Implemented Interfaces:

ContentHandler, DTDHandler, EntityResolver, ErrorHandler

public class Mpeg7Parser
extends DefaultHandler

Parser implementation for mpeg-7 files. Note that this implementation does by far not cover the full mpeg-7 standard but only deals with those parts relevant to Opencast, mainly temporal decompositions.

Constructor Summary

Constructors

Constructor	Description
Mpeg7Parser()	Creates a new parser for mpeg-7 files.
Mpeg7Parser(Mpeg7CatalogImpl catalog)

Method Summary

Modifier and Type	Method	Description
void	characters(char[] ch, int start, int length)
void	endElement(String uri, String localName, String name)
void	error(SAXParseException e)
void	fatalError(SAXParseException e)
Mpeg7CatalogImpl	parse(InputStream is)	Parses the mpeg-7 catalog file and returns its object representation.
void	startElement(String uri, String localName, String name, Attributes attributes)	Read type attribute from track or catalog element.
void	warning(SAXParseException e)

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

endDocument, endPrefixMapping, ignorableWhitespace, notationDecl, processingInstruction, resolveEntity, setDocumentLocator, skippedEntity, startDocument, startPrefixMapping, unparsedEntityDecl

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.xml.sax.ContentHandler

declaration

Constructor Details

Mpeg7Parser

public Mpeg7Parser()

Creates a new parser for mpeg-7 files.

Mpeg7Parser

public Mpeg7Parser(Mpeg7CatalogImpl catalog)

Method Details

parse

public Mpeg7CatalogImpl parse(InputStream is)
                       throws ParserConfigurationException,
SAXException,
IOException

Parses the mpeg-7 catalog file and returns its object representation.

Parameters:

is - the input stream containing the catalog

Returns:

the catalog representation

Throws:

ParserConfigurationException - if setting up the parser failed

SAXException - if an error occured while parsing the document

IOException - if the file cannot be accessed in a proper way

IllegalArgumentException - if the provided file does not contain mpeg-7 data

startElement

public void startElement(String uri,
 String localName,
 String name,
 Attributes attributes)
                  throws SAXException

Read type attribute from track or catalog element.

Specified by:

startElement in interface ContentHandler

Overrides:

startElement in class DefaultHandler

Throws:

SAXException

See Also:

• DefaultHandler.startElement(java.lang.String, java.lang.String, java.lang.String, org.xml.sax.Attributes)

endElement

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

Specified by:

endElement in interface ContentHandler

Overrides:

endElement in class DefaultHandler

Throws:

SAXException

See Also:

• DefaultHandler.endElement(java.lang.String, java.lang.String, java.lang.String)

characters

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

Specified by:

characters in interface ContentHandler

Overrides:

characters in class DefaultHandler

Throws:

SAXException

See Also:

• DefaultHandler.characters(char[], int, int)

error

public void error(SAXParseException e)
           throws SAXException

Specified by:

error in interface ErrorHandler

Overrides:

error in class DefaultHandler

Throws:

SAXException

See Also:

• DefaultHandler.error(org.xml.sax.SAXParseException)

fatalError

public void fatalError(SAXParseException e)
                throws SAXException

Specified by:

fatalError in interface ErrorHandler

Overrides:

fatalError in class DefaultHandler

Throws:

SAXException

See Also:

• DefaultHandler.fatalError(org.xml.sax.SAXParseException)

warning

public void warning(SAXParseException e)
             throws SAXException

Specified by:

warning in interface ErrorHandler

Overrides:

warning in class DefaultHandler

Throws:

SAXException

See Also:

• DefaultHandler.warning(org.xml.sax.SAXParseException)