nz.ac.waikato.mcennis.rat.dataAquisition
Class GetArtistTags

java.lang.Object
  extended by nz.ac.waikato.mcennis.rat.graph.model.ModelShell
      extended by nz.ac.waikato.mcennis.rat.dataAquisition.GetArtistTags
All Implemented Interfaces:
Component, DataAquisition, Model

public class GetArtistTags
extends ModelShell
implements DataAquisition

Single threaded crawler for parsing a set of predetermined artists from LastFM. For every artist as listed in a text file, the set of all tags for that artist is downloaded from LastFM using the LastFMArtistTag XML parser.

See the output descriptors for a description of the graph created.


Field Summary
 
Fields inherited from class nz.ac.waikato.mcennis.rat.graph.model.ModelShell
listener
 
Constructor Summary
GetArtistTags()
           
 
Method Summary
protected  java.lang.String buildURL(java.lang.String line)
           
 void cancel()
          Stop all collection at the end of the next entity (file, web-page, etc.)
 Graph get()
          Obtain a reference to the graph this object holds
 InputDescriptor[] getInputType()
          The input type describes all the different kinds of graph objects that are utilized (and hence required) by this object.
 OutputDescriptor[] getOutputType()
          The output type describes all the different kinds of graph objects that are created during the execution of this algorithm.
 Parameter[] getParameter()
          List of all parameters this component accepts.
 Parameter getParameter(java.lang.String param)
          Returns the specific parameter identified by its key-name.
 SettableParameter[] getSettableParameter()
          Returns settable (i.e.
 SettableParameter getSettableParameter(java.lang.String param)
          Return the settable parameter namede by this key-name.
 void init(java.util.Properties map)
          Parameters of this module:
  • name: name of this algorithm.
  •  void set(Graph g)
              Set the graph to be populated by this object
     void start()
              Begin executing the data aquisition module
     
    Methods inherited from class nz.ac.waikato.mcennis.rat.graph.model.ModelShell
    addListener, fireChange
     
    Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
     
    Methods inherited from interface nz.ac.waikato.mcennis.rat.graph.model.Model
    addListener
     

    Constructor Detail

    GetArtistTags

    public GetArtistTags()
    Method Detail

    start

    public void start()
    Description copied from interface: DataAquisition
    Begin executing the data aquisition module

    Specified by:
    start in interface DataAquisition

    buildURL

    protected java.lang.String buildURL(java.lang.String line)

    set

    public void set(Graph g)
    Description copied from interface: DataAquisition
    Set the graph to be populated by this object

    Specified by:
    set in interface DataAquisition
    Parameters:
    g - graph to be created for analysis

    get

    public Graph get()
    Description copied from interface: DataAquisition
    Obtain a reference to the graph this object holds

    Specified by:
    get in interface DataAquisition
    Returns:
    graph created by this object

    cancel

    public void cancel()
    Description copied from interface: DataAquisition
    Stop all collection at the end of the next entity (file, web-page, etc.)

    Specified by:
    cancel in interface DataAquisition

    getInputType

    public InputDescriptor[] getInputType()
    Description copied from interface: Component
    The input type describes all the different kinds of graph objects that are utilized (and hence required) by this object. This result is only guaranteed to be fixed if structural parameters are not modified. This is an empty array if there is no input.

    Specified by:
    getInputType in interface Component
    Returns:
    InputDescriptor array for this component
    See Also:
    InputDescriptor

    getOutputType

    public OutputDescriptor[] getOutputType()
    Description copied from interface: Component
    The output type describes all the different kinds of graph objects that are created during the execution of this algorithm. The result is only guaranteed to be fixed if structural parameters are not modified. This is an empty array if there is no output.

    Specified by:
    getOutputType in interface Component
    Returns:
    OutputDescriptor array for this component
    See Also:
    OutputDescriptor

    getParameter

    public Parameter[] getParameter()
    Description copied from interface: Component
    List of all parameters this component accepts. Each parameter also has a distinct key-name used when initializing the object using the init method. If there are no parameters, null is returned.

    Specified by:
    getParameter in interface Component
    Returns:
    read-only array of Parameters

    getParameter

    public Parameter getParameter(java.lang.String param)
    Description copied from interface: Component
    Returns the specific parameter identified by its key-name. If no parameter is found with this key-name, null is returned.

    Specified by:
    getParameter in interface Component
    Parameters:
    param - key-name of the parameter
    Returns:
    named parameter

    getSettableParameter

    public SettableParameter[] getSettableParameter()
    Description copied from interface: Component
    Returns settable (i.e. editable while running) parameters. If none exist, null is returned.

    Specified by:
    getSettableParameter in interface Component
    Returns:
    array of settable parameters

    getSettableParameter

    public SettableParameter getSettableParameter(java.lang.String param)
    Description copied from interface: Component
    Return the settable parameter namede by this key-name. If this parameter is not found or is not settable, null is returned.

    Specified by:
    getSettableParameter in interface Component
    Parameters:
    param - key-name of the parameter
    Returns:
    named settable parameter

    init

    public void init(java.util.Properties map)
    Parameters of this module:

    Specified by:
    init in interface Component
    Parameters:
    map - properties to load - null is permitted.