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

  • Constructor Details

    • VNSQuery

      public VNSQuery(String aVnsHost, int aVnsPort) throws Exception
      Connects to a VNS server identified by host and port
      Parameters:
      aVnsHost - - VNS host name
      aVnsPort - - VNS port number
      Throws:
      Exception - - when unable to connect to VNS

  • Method Details

    • getServices

      public ArrayList getServices(String aName) throws 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:
      Exception - - unable to get a list

    • getUnassignedServices

      public ArrayList getUnassignedServices(String aName, ArrayList assignedServices) throws 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:
      Exception - - unable to get a list

    • findUnassigned

      public static int findUnassigned(ArrayList oldList, 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(String[] args)