Package org.apache.ignite.examples

Class ExamplesUtils

  • public class ExamplesUtils
extends java.lang.Object

    • Constructor Summary

      Constructors 
      Constructor Description
      ExamplesUtils()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static void checkMinMemory​(long min)
      Exits with code -1 if maximum memory is below 90% of minimally allowed threshold.
      static boolean checkMinTopologySize​(ClusterGroup grp, int size)
      Checks minimum topology size for running a certain example.
      static boolean hasServerNodes​(Ignite ignite)
      Checks if cluster has server nodes.
      static void printQueryResults​(java.util.List<?> res)
      Convenience method for printing query results.
      static java.net.URL url​(java.lang.String path)
      Returns URL resolved by class loader for classes in examples project.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • ExamplesUtils

        public ExamplesUtils()

    • Method Detail

      • checkMinMemory

        public static void checkMinMemory​(long min)
        Exits with code -1 if maximum memory is below 90% of minimally allowed threshold.
        Parameters:
        min - Minimum memory threshold.

      • url

        public static java.net.URL url​(java.lang.String path)
        Returns URL resolved by class loader for classes in examples project.
        Parameters:
        path - Path to the resource.
        Returns:
        Resolved URL.

      • checkMinTopologySize

        public static boolean checkMinTopologySize​(ClusterGroup grp,
                                           int size)
        Checks minimum topology size for running a certain example.
        Parameters:
        grp - Cluster to check size for.
        size - Minimum number of nodes required to run a certain example.
        Returns:
        True if check passed, false otherwise.

      • hasServerNodes

        public static boolean hasServerNodes​(Ignite ignite)
        Checks if cluster has server nodes.
        Parameters:
        ignite - Ignite instance.
        Returns:
        True if cluster has server nodes, false otherwise.

      • printQueryResults

        public static void printQueryResults​(java.util.List<?> res)
        Convenience method for printing query results.
        Parameters:
        res - Query results.