org.gridbus.broker.initializer
Class Initialization

java.lang.Object
  org.gridbus.broker.initializer.Initialization

public class Initialization

extends java.lang.Object

This class handles initialization of variables for the Broker

Author:

Srikumar Venugopal (srikumar@cs.mu.oz.au)

Constructor Summary

Initialization()
Constructor initialises the internal data structures for the broker properties, gatekeeper, datafiles and datahosts

Method Summary

java.lang.Object	getComputeServers() Returns the list of compute servers found
java.util.Vector	getDataFileList() Returns the datafiles table
java.util.Hashtable	getDatahosts() Returns the datahosts table
java.util.Properties	getDBProperties() Returns the Broker properties object
java.lang.Object	getHostListObject() Returns the hostlist object, which is a string (file name containing hosts) / collection of hosts
java.lang.Object	getJobs() Gets the jobs prepared from the XML file.
java.lang.String	getPlanFileName() Returns the plan file name
RunFile	getRunFileObj()
boolean	isInputDataFilePresent() True / False based on whether the input data file is present
boolean	isOutputDataFilePresent() To be implemented
void	setDBProperties(java.util.Properties properties)
void	setHostListObject(java.lang.Object object) Sets the host list object which is a string(file name) / collection
void	setPlanFileName(java.lang.String string) Sets the plan file name
void	setUp() The setup method reads the following files: - plan file - gatekeeper file From the plan file, this method retrieves the logical filenames, resolves these to the actual physical file location, retrieves the file attributes for each file and sets up the datafiles and datahosts tables The plan file contents are also used to prepare the jobs to be scheduled From the gatekeeper file, the compute servers are discovered and probed.
boolean	transfer(Task task) To be implemented in the future

Methods inherited from class java.lang.Object

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

Constructor Detail

Initialization

public Initialization()

Constructor initialises the internal data structures for the broker properties, gatekeeper, datafiles and datahosts

Method Detail

setUp

public void setUp()
           throws java.lang.Exception

The setup method reads the following files: - plan file - gatekeeper file From the plan file, this method retrieves the logical filenames, resolves these to the actual physical file location, retrieves the file attributes for each file and sets up the datafiles and datahosts tables The plan file contents are also used to prepare the jobs to be scheduled From the gatekeeper file, the compute servers are discovered and probed. This sets up the computeserverlist. These lists (datafiles, datahosts, computeservers) are used by the scheduler to schedule jobs.

Throws:

java.lang.Exception

transfer

public boolean transfer(Task task)
                 throws java.lang.Exception

To be implemented in the future

Parameters:

task -

Returns:

Throws:

java.lang.Exception

getJobs

public java.lang.Object getJobs()

Gets the jobs prepared from the XML file. (which is the result of processing the plan file)

Returns:

jobs list as a java vector

getPlanFileName

public java.lang.String getPlanFileName()

Returns the plan file name

Returns:

plan file name

setPlanFileName

public void setPlanFileName(java.lang.String string)

Sets the plan file name

Parameters:

string - (plan file name)

getComputeServers

public java.lang.Object getComputeServers()

Returns the list of compute servers found

Returns:

compute server list object

getHostListObject

public java.lang.Object getHostListObject()

Returns the hostlist object, which is a string (file name containing hosts) / collection of hosts

Returns:

hostlist object

setHostListObject

public void setHostListObject(java.lang.Object object)

Sets the host list object which is a string(file name) / collection

Parameters:

object -

getDataFileList

public java.util.Vector getDataFileList()

Returns the datafiles table

Returns:

datafile list as a vector

getDBProperties

public java.util.Properties getDBProperties()

Returns the Broker properties object

Returns:

setDBProperties

public void setDBProperties(java.util.Properties properties)

Parameters:

properties -

isInputDataFilePresent

public boolean isInputDataFilePresent()

True / False based on whether the input data file is present

Returns:

True / False based on whether the input data file is present for the plan file the farming engine is operating on.

isOutputDataFilePresent

public boolean isOutputDataFilePresent()

To be implemented

Returns:

true if the output data file is present

getDatahosts

public java.util.Hashtable getDatahosts()

Returns the datahosts table

Returns:

datahosts table as a java hashtable object

getRunFileObj

public RunFile getRunFileObj()

Returns: