org.apache.uima.collection.impl.cpm.container.deployer.vns
Class VNSQuery

java.lang.Object
  org.apache.uima.collection.impl.cpm.container.deployer.vns.VNSQuery

public class VNSQuery
extends java.lang.Object

Connects to and querries a given VNS server for a list a services bound to a given name.

Nested Class Summary

class

VNSQuery.VinciVNSQuery Inner class used for accessing the VNS server.

Constructor Summary

VNSQuery(java.lang.String aVnsHost, int aVnsPort)
Connects to a VNS server identified by host and port

Method Summary

static int	findUnassigned(java.util.ArrayList oldList, java.util.ArrayList newList) Diffs two lists of services and returns those that have not yet been assigned
java.util.ArrayList	getServices(java.lang.String aName) Returns a list of services registered in the VNS and bound to a given name.
java.util.ArrayList	getUnassignedServices(java.lang.String aName, java.util.ArrayList assignedServices) Returns a list of services that have not yet been assigned to any CPM proxy.
static void	main(java.lang.String[] args)

Methods inherited from class java.lang.Object

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

Constructor Detail

VNSQuery

public VNSQuery(java.lang.String aVnsHost,
                int aVnsPort)
         throws java.lang.Exception

Connects to a VNS server identified by host and port

Parameters:

aVnsHost - - VNS host name

aVnsPort - - VNS port number

Throws:

java.lang.Exception - - when unable to connect to VNS

Method Detail

getServices

public java.util.ArrayList getServices(java.lang.String aName)
                                throws java.lang.Exception

Returns a list of services registered in the VNS and bound to a given name.

Parameters:

aName - - name of the service

Returns:

- ArrayList of VinciServiceInfo instances

Throws:

java.lang.Exception - - unable to get a list

getUnassignedServices

public java.util.ArrayList getUnassignedServices(java.lang.String aName,
                                                 java.util.ArrayList assignedServices)
                                          throws java.lang.Exception

Returns a list of services that have not yet been assigned to any CPM proxy. It diffs the current list and a new list as returned from the VNS.

Parameters:

aName - - name of the service

assignedServices - - a list of services currently in use

Returns:

- ArrayList of VinciServiceInfo instances

Throws:

java.lang.Exception - - unable to get a list

findUnassigned

public static int findUnassigned(java.util.ArrayList oldList,
                                 java.util.ArrayList newList)

Diffs two lists of services and returns those that have not yet been assigned

Parameters:

oldList - - current (in-use) list of services

newList - - new list of services

Returns:

- number of un-assigned services

main

public static void main(java.lang.String[] args)