org.esau.ptarmigan.impl.filter
Class B4SFilter

java.lang.Object
  |
  +--org.xml.sax.helpers.XMLFilterImpl
        |
        +--org.esau.ptarmigan.impl.filter.BaseFilter
              |
              +--org.esau.ptarmigan.impl.filter.PlaylistFilter
                    |
                    +--org.esau.ptarmigan.impl.filter.XMLPlaylistFilter
                          |
                          +--org.esau.ptarmigan.impl.filter.B4SFilter

All Implemented Interfaces:

CharacterStreamSource, org.xml.sax.ContentHandler, org.xml.sax.DTDHandler, org.xml.sax.EntityResolver, org.xml.sax.ErrorHandler, org.xml.sax.XMLFilter, org.xml.sax.XMLReader

public final class B4SFilter

extends XMLPlaylistFilter

B4SFilter -- transforms B4S playlist to ptarmigan playlist

  Example source:

   <?xml version="1.0" encoding='UTF-8' standalone="yes"?>
    <WinampXML>
    <!- Generated by: Nullsoft Winamp3 version 3.0 ->
     <playlist num_entries="4" label="Playlist 001">
       <entry Playstring="file:C:\work\java\ptarmigan\ptarmigan\test\none.mp3">
         <Name>none</Name>
         <Length>2247</Length>
       </entry>
       <entry Playstring="file:C:\music\Jazz\Vocals\Billie Holiday\Body and Soul\01 - Body And Soul.mp3">
         <Name>Billie Holiday - Body And Soul</Name>
         <Length>383530</Length>
       </entry>
       <entry Playstring="file:C:\music\Jazz\Vocals\Billie Holiday\Body and Soul\02 - They Can't Take That Away From Me.mp3">
         <Name>Billie Holiday - They Can't Take That Away From Me</Name>
         <Length>252500</Length>
       </entry>
       <entry Playstring="file:C:\music\Jazz\Vocals\Billie Holiday\Body and Soul\03 - Darn That Dream.mp3">
         <Name>Billie Holiday - Darn That Dream</Name>
         <Length>379481</Length>
       </entry>
     </playlist>
    </WinampXML>
 
 The equivalent XSLT would appear thus:
 
    <xsl:stylesheet version="1.0"
        xmlns:xsl='http://www.w3.org/1999/XSL/Transform'
        xmlns:pl='http://esau.org/ns/ptarmigan/playlist'>
        <xsl:param name='include_entries'/>
        <xsl:param name='file_separator'/>
        <xsl:template match="/WinampXML/playlist">
            <pl:playlist>
                <pl:properties>
                    <pl:title><xsl:value-of select='@label'/></pl:title>
                    <pl:entry-count><xsl:value-of select='count(./entry)'/></pl:entry-count>
                    <pl:duration-total><xsl:value-of select='sum(./entry/Length)'/></pl:duration-total>
                </pl:properties>
                <xsl:if test="$include_entries = 'true'">
                        <xsl:apply-templates select="entry"/>
                </xsl:if>
            </pl:playlist>
        </xsl:template>
        <xsl:template match="entry">
            <pl:entry>
                <pl:path><xsl:value-of select='@Playstring'/></pl:path>
                <pl:title><xsl:value-of select='Name'/></pl:title>
                <pl:duration><xsl:value-of select='Length'/></pl:duration>
            </pl:entry>
        </xsl:template>
    </xsl:stylesheet>
 

TODO: recursively scan all playlists found.

Version:

$Revision: 1.2 $ $Date: 2002/09/16 04:05:07 $

Author:

Reed Esau

Constructor Summary

B4SFilter()

Method Summary

void	endElement(java.lang.String uri, java.lang.String local_name, java.lang.String qName) Filter an end element event.
boolean	isMatch(java.lang.String sniff_chars) is the root element of the xml file indicate it's WinampXML? Note: do B4S files have namespaces?
void	startElement(java.lang.String uri, java.lang.String local_name, java.lang.String qName, org.xml.sax.Attributes atts) Filter a start element event.

Methods inherited from class org.esau.ptarmigan.impl.filter.XMLPlaylistFilter

endDocument, startDocument

Methods inherited from class org.esau.ptarmigan.impl.filter.PlaylistFilter

getIncludeEntries, resetData, setBaseDir, setIncludeEntries

Methods inherited from class org.esau.ptarmigan.impl.filter.BaseFilter

characters, getMediaProperties, parse, setMediaProperties

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

endPrefixMapping, error, fatalError, getContentHandler, getDTDHandler, getEntityResolver, getErrorHandler, getFeature, getParent, getProperty, ignorableWhitespace, notationDecl, parse, processingInstruction, resolveEntity, setContentHandler, setDocumentLocator, setDTDHandler, setEntityResolver, setErrorHandler, setFeature, setParent, setProperty, skippedEntity, startPrefixMapping, unparsedEntityDecl, warning

Methods inherited from class java.lang.Object

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

Constructor Detail

B4SFilter

public B4SFilter()
          throws org.xml.sax.SAXException

Method Detail

isMatch

public boolean isMatch(java.lang.String sniff_chars)

is the root element of the xml file indicate it's WinampXML? Note: do B4S files have namespaces?

Overrides:

isMatch in class PlaylistFilter

startElement

public void startElement(java.lang.String uri,
                         java.lang.String local_name,
                         java.lang.String qName,
                         org.xml.sax.Attributes atts)
                  throws org.xml.sax.SAXException

Filter a start element event.

Overrides:

startElement in class org.xml.sax.helpers.XMLFilterImpl

endElement

public void endElement(java.lang.String uri,
                       java.lang.String local_name,
                       java.lang.String qName)
                throws org.xml.sax.SAXException

Filter an end element event.

Overrides:

endElement in class org.xml.sax.helpers.XMLFilterImpl