Class InvokeUtils


  • public class InvokeUtils
    extends java.lang.Object
    Provides some utility functions used by classes which invoke tasks.
    Since:
    23 Jan 2007
    Author:
    Mark Taylor
    • Constructor Summary

      Constructors 
      Constructor Description
      InvokeUtils()  
    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static void configureLogging​(int verbosity, boolean debug)
      Sets up the logging system.
      static java.lang.String getJavaVersion()
      Returns the JVM version, without throwing any exceptions.
      static java.lang.String getJavaVM()
      Returns the JVM name and version string, without throwing any exceptions.
      static void main​(java.lang.String[] args)
      Invokes the main method of a named class with logging configuration specified on the command line.
      static Parameter[] sortParameters​(Parameter[] params)
      Sorts a list of Parameter objects.
      static void summariseError​(java.lang.Throwable error, java.io.PrintStream out)
      Writes a summary of a (possibly nested) exception to a given output stream.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Constructor Detail

      • InvokeUtils

        public InvokeUtils()
    • Method Detail

      • configureLogging

        public static void configureLogging​(int verbosity,
                                            boolean debug)
        Sets up the logging system.
        Parameters:
        verbosity - number of levels greater than default to set
        debug - whether debugging mode is on
      • getJavaVersion

        public static java.lang.String getJavaVersion()
        Returns the JVM version, without throwing any exceptions.
        Returns:
        java version
      • getJavaVM

        public static java.lang.String getJavaVM()
        Returns the JVM name and version string, without throwing any exceptions.
        Returns:
        JVM description
      • summariseError

        public static void summariseError​(java.lang.Throwable error,
                                          java.io.PrintStream out)
        Writes a summary of a (possibly nested) exception to a given output stream.
        Parameters:
        error - exception
        out - destination stream
      • sortParameters

        public static Parameter[] sortParameters​(Parameter[] params)
        Sorts a list of Parameter objects. Numbered ones are followed by unnumbered ones.
        Parameters:
        params - input list
        Returns:
        output list
      • main

        public static void main​(java.lang.String[] args)
                         throws java.lang.Throwable
        Invokes the main method of a named class with logging configuration specified on the command line. The -verbose/+verbose flags and the -debug flag may be supplied before the target classname and arguments.
        Throws:
        java.lang.Throwable