edu.ucsb.adl.middleware.rmi
Class CollectionServiceImpl

java.lang.Object
  |
  +--java.rmi.server.RemoteObject
        |
        +--java.rmi.server.RemoteServer
              |
              +--java.rmi.server.UnicastRemoteObject
                    |
                    +--edu.ucsb.adl.middleware.rmi.CollectionServiceImpl

All Implemented Interfaces:

CollectionService, java.rmi.Remote, java.io.Serializable

public final class CollectionServiceImpl

extends java.rmi.server.UnicastRemoteObject

implements CollectionService

Bridge between the RMI interface to the ADL collection service and the collection service itself.

Version:

$Header: /export/home/gjanee/middleware/edu/ucsb/adl/middleware/rmi/RCS/CollectionServiceImpl.java,v 1.1 2001/02/16 14:42:39 gjanee Exp $

$Log: CollectionServiceImpl.java,v $ Revision 1.1 2001/02/16 14:42:39 gjanee Initial revision

Author:

Greg Janée
Alexandria Digital Library

See Also:

Serialized Form

Field Summary

Fields inherited from class java.rmi.server.RemoteObject

ref

Constructor Summary

CollectionServiceImpl(java.lang.String configurationFile)
Creates a CollectionServiceImpl.

Method Summary

protected void	finalize() Frees all resources held by the bridge.
java.lang.String	performCollectionService(java.lang.String collection) Performs the ADL collection service.

Methods inherited from class java.rmi.server.UnicastRemoteObject

clone, exportObject, exportObject, exportObject, unexportObject

Methods inherited from class java.rmi.server.RemoteServer

getClientHost, getLog, setLog

Methods inherited from class java.rmi.server.RemoteObject

equals, getRef, hashCode, toString, toStub

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

CollectionServiceImpl

public CollectionServiceImpl(java.lang.String configurationFile)
                      throws InternalErrorException,
                             java.rmi.RemoteException

Creates a CollectionServiceImpl.

Parameters:

configurationFile - The filename of an ADL middleware configuration file.

Throws:

InternalErrorException - If the initialization of the service fails.

java.rmi.RemoteException - If an RMI error occurs.

Method Detail

performCollectionService

public java.lang.String performCollectionService(java.lang.String collection)
                                          throws MiddlewareException,
                                                 java.rmi.RemoteException

Performs the ADL collection service.

Specified by:

performCollectionService in interface CollectionService

Parameters:

collection - The collection name, e.g., "adl_catalog".

Returns:

An XML document that is well-formed and valid according to the appropriate DTD.

Throws:

BadRequestException - If collection is invalid.

NoAuthorizationException - If the request is valid but not allowed.

java.rmi.RemoteException - If an RMI error occurs.

InternalErrorException - If the request cannot otherwise be completed.

MiddlewareException

finalize

protected void finalize()

Frees all resources held by the bridge.

Overrides:

finalize in class java.lang.Object