Class RemoteService.agent.ServiceAgent 
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Class RemoteService.agent.ServiceAgent 

java.lang.Object
   |
   +----JavaAgent.agent.Agent
           |
           +----RemoteService.agent.ServiceAgent
public class ServiceAgent
extends Agent
ServiceAgent: Subclass of Agent which manages a set of Service objects. When each Service is added a registration message is sent to the ServiceBroker providing both a description and gif thumbnail. Requests for a specific Service will be responded to with the location of the appropriate class file.

Copyright (c) 1995, H. Robert Frost, Stanford University. All rights reserved.

Copyright (c) 1996, H. Robert Frost, Enterprise Integration Technologies, Inc. All rights reserved.

RESTRICTED RIGHTS LEGEND: Use, duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph(c)(1)(ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.227-7013 and in similar clauses in the FAR and NASA FAR supplement.

This software is bound by the terms and conditions listed in the attached LICENSE file.

Constructor Index

o ServiceAgent(ContextInterface, String, URL, URL, File, File)
Contructs a ServiceAgent.

Method Index

o addService(AvailableService)
Called by the ServiceFrame to add a Service.
o init()
Creates the ServiceResourceManager, ServiceMessageHandler and reads in the init_file.
o removeService(String)
Called to remove a service.
o resourceChanged(Resource)
Called by a Resource object when the number of elements has changed.

Constructors

o ServiceAgent 
  public ServiceAgent(ContextInterface context,
                      String n,
                      URL init_url,
                      URL shared_url,
                      File shared_dir,
                      File working_dir)
Contructs a ServiceAgent.
Parameters:
n - String identifier for the Agent.
init_url - URL for the initialization file.
shared_url - URL for shared classes.
shared_dir - Directory for local access to shared classes.
working_dir - Directory for local files, will be null if the Agent is unable to write to the local file system.

Methods

o init 
  public void init()
Creates the ServiceResourceManager, ServiceMessageHandler and reads in the init_file.
Overrides:
init in class Agent
o resourceChanged 
  public void resourceChanged(Resource r)
Called by a Resource object when the number of elements has changed.
Parameters:
type - Type of the Resource.
Overrides:
resourceChanged in class Agent
o addService 
  public void addService(AvailableService service)
Called by the ServiceFrame to add a Service. Adds the AvailableService object to the ServiceAgent's Resources then sends a register-service message to the ANS.
Parameters:
service_name - Name of the service agent
o removeService 
  public void removeService(String name)
Called to remove a service. Sends out an unregister-service message.
Parameters:
name - Name of the Service. 
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