uk.ac.soton.itinnovation.grid.service.utils.gridservit
Class GridServiceUtils

java.lang.Object
  uk.ac.soton.itinnovation.grid.service.utils.gridservit.GridServiceUtils

public abstract class GridServiceUtils
extends Object

Helper methods for writing grid services. This class is replacing GridServiceLite. It is used as a utility class rather than as a base class, making it easier to integrate with existing code.

Constructor Summary

GridServiceUtils()

Method Summary

static org.apache.axis.message.addressing.EndpointReferenceType	generateEPR(GridResource bean, URL serviceAddress) Generate an EPR from a resource's bean.
static org.apache.axis.message.addressing.EndpointReferenceType[]	getResources(String pbacType, Class type, String state, EPRGenerator generator, SubjectDescription user) Shared code for each service's getResources().

Methods inherited from class java.lang.Object

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

Constructor Detail

GridServiceUtils

public GridServiceUtils()

Method Detail

generateEPR

public static org.apache.axis.message.addressing.EndpointReferenceType generateEPR(GridResource bean,
                                                                                   URL serviceAddress)

Generate an EPR from a resource's bean. Note: the bean's hibernate session is open when this method is invoked, and can be retreived using SingletonSessionFactory.getFactory()'s getCurrentSession method.

Parameters:

bean - hibernated bean containing information about the resource

serviceAddress - value for the address field of the EPR

Returns:

an EPR with the address, type, status and management EPR fields filled in

getResources

public static org.apache.axis.message.addressing.EndpointReferenceType[] getResources(String pbacType,
                                                                                      Class type,
                                                                                      String state,
                                                                                      EPRGenerator generator,
                                                                                      SubjectDescription user)
                                                                               throws GridFailureException

Shared code for each service's getResources().

Parameters:

pbacType - return resources of this type

type - the Java class of the hibernated resources

state - PBAC state to filter on, or null for all

generator - callback to use to create EPRs from hibernated beans

user - only return resources accessible by this user, or null for all resources

Returns:

a list of matching resource EPRs

Throws:

GridFailureException

See Also:

PDP.getResources(java.lang.String, uk.ac.soton.itinnovation.grid.types.SubjectDescription, java.lang.String)