Calculates (MinSum of distances in a graph)/(Sum of shortest paths from this node)
for every actor of the given type (mode).If the value is Infinite (because
of unconnected graphs) the centrality is 0.0.
If this site has not been crawled before, adds a new site to the
set of all sites parsed and adds it to the queue of the next spider,
incrementing the spider index to the next spider.
Create an ArtistDecider
The type is chosen by the 'ArtistDeciderType' parameter
Known Types:
'Google' - GoogleDecider
'LastFM' - LastFMDecider
'LastFMType' key = 'XML' for XML version
'LastFMType' key undefined or anything else 'Basic'
Anything else - BasicArtistDecider
'artistListLocation' key = directory of list of all artists
Create a graph object without directly exposing the underlying types
Types of graphs are pulled from the "Graph" key with "GraphID" for their unique ID.
Create Parsers using the given properties file as parameters
Parser Class is determined by the 'ParserType' key
HTML
File'ToFileDirectory' - directory where files should be stored
Scheduler - see HandlerFactory-RATExecution for more parameters
FOAF - see HandlerFactory-FOAF for more parameters
Graph - see HandlerFactory-Graph for more parameters
GoogleArtist
LastFmArtist
'LastFMType' - LastFM xml parser if XML, Basic bio parser otherwise
BaseArtistDecider - ArtistDecider created - see ArtistDeciderFactory
ArtistDeciderXML
YahooArtistDecider
LastFMArtistTag - see HandlerFactory-LastFMArtistTag for parameters