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$ time ./m3util index -q GOLD

Assuming /media/sdc1 as media library root!

Exception in thread "main" javax.persistence.PersistenceException: [PersistenceUnit: org.jcoderz.m3] Unable to build EntityManagerFactory
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:915)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:890)
at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:57)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:63)
at org.jcoderz.m3util.intern.db.RepositoryDb.startup(RepositoryDb.java:25)
at org.jcoderz.m3util.intern.db.DatabaseUpdater.(DatabaseUpdater.java:60)
at org.jcoderz.m3util.M3Util.handleIndex(M3Util.java:225)
at org.jcoderz.m3util.M3Util.main(M3Util.java:155)
Caused by: org.hibernate.service.classloading.spi.ClassLoadingException: Specified JDBC Driver org.apache.derby.jdbc.EmbeddedDriver class not found
at org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl.configure(DriverManagerConnectionProviderImpl.java:107)
at org.hibernate.service.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:75)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:159)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:131)
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.buildJdbcConnectionAccess(JdbcServicesImpl.java:223)
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:89)
at org.hibernate.service.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:75)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:159)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:131)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:73)
at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2283)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2279)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1748)
at org.hibernate.ejb.EntityManagerFactoryImpl.(EntityManagerFactoryImpl.java:94)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:905)
... 7 more
Caused by: org.hibernate.service.classloading.spi.ClassLoadingException: Unable to load class [org.apache.derby.jdbc.EmbeddedDriver]
at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:141)
at org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl.configure(DriverManagerConnectionProviderImpl.java:104)
... 21 more
Caused by: java.lang.ClassNotFoundException: Could not load requested class : org.apache.derby.jdbc.EmbeddedDriver
at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl$1.findClass(ClassLoaderServiceImpl.java:99)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at org.hibernate.service.classloading.internal.ClassLoaderServiceImpl.classForName(ClassLoaderServiceImpl.java:138)
... 22 more

This ticket should discuss the new (final) layout of the library:

• audio - The managed audio folder root. This folder can be added to any tool as the base for the whole audio library. The content of this folder is only touched by the tool chain, i.e. any manual changes will be overwritten.
  • 01-gold - High-quality tags, tagged with data from MusicBrainz
  • 02-silver - Medium-quality tags, tagged via freedb or other sources
  • 03-bronze - Low-quality tags, tagged?
  • playlist - audio playlists
• photos - the managed folder for photos (TBD: out of scope at the moment)
• tools - the tools for managing the library
  • bin - the binaries/shell scripts
  • etc - tool config fies
  • lib
    • java - A folder with the different Java versions
    • jboss-as - The JBoss Application Server
  • var - Directory structure for log files and databases
    • log - log files
    • cache
      • images - the asin image cache
    • lib
      • db - for example the Derby DB files
      • lucene - the lucene index files
  • incoming - Folder for new MP3s
    • audio - incoming audio files
      • unsorted/ - new contributions by "username"
      • cleaned - staging, for files prepared to be added to the repository
      • dupes - duplicates identified by the tool-chain
    • photos - incoming photos
    • video - incoming video files
• video - the managed folder for video files (TBD: out of scope at the moment)

A few new tools have been discussed recently:

1. init library
   The init library tool creates a top-level folder structure where MP3 files can be sorted into by the other tools
2. set the tags, based on the MB information
   This is the already existing tool which gets an incoming folder and sorts the MB tagged files into the library
3. organize into library
   This tools organizes the files into the folder hierarchy by reading the ID3 tags from the previously tagged files.

Perform Unicode normalization: http://ahinea.com/en/tech/accented-translate.html
This should be done before adding files to the Lucene index as otherwise searching will be hard for languages with diacritic characters.

But also filenames in the file-system might be written without any diacritic characters to allow easy file searches.

This can be implemented by using the Java5/ICU4J Library class Normalizer:

• http://icu-project.org/apiref/icu4j/com/ibm/icu/text/Normalizer.html
• http://www.rgagnon.com/javadetails/java-0456.html (http://download.oracle.com/javase/1.5.0/docs/api/java/text/Collator.html)

m3server needs classes from m3util, therefore the m3util SNAPSHOT JARs should be published to Maven Central.

The project is running under the name "m3util". Therefore the modules and package names should be aligned:

• m3util-mb-client <- mp3-mb-ngs-java
  org.jcoderz.m3util.mb <- org.jcoderz.mb
• m3util-cmd-line <- mp3-ng
  org.jcoderz.m3util.cmdline <- org.jcoderz.mp3

Names to be discussed!

The DatabaseUpdater tool should use Derby by default as Derby comes with the JDK since Java 6.
The Derby database files should be put under /tools/var/lib/db/m3db