Package com.lightbend.cinnamon.info

Class RuntimeInformation

  • public class RuntimeInformation
extends java.lang.Object

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static java.lang.String getDefaultApplicationName()
      Get the default application name for this JVM.
      static java.lang.String getDefaultHostName()
      Get the default host name for this JVM.
      static java.lang.String getMainClassFromCommand​(java.lang.String command)
      Get the main class from a command string.
      static java.lang.String getMainClassFromEnvironment​(java.util.Map<java.lang.String,​java.lang.String> env)
      Get the main class from environment variables.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • RuntimeInformation

        public RuntimeInformation()

    • Method Detail

      • getDefaultHostName

        public static java.lang.String getDefaultHostName()
        Get the default host name for this JVM.

        Returns the local host name or otherwise the local host address. Use the cinnamon.host property to set the host name directly.

        Returns:
        default host name

      • getDefaultApplicationName

        public static java.lang.String getDefaultApplicationName()
        Get the default application name for this JVM.

        A best effort attempt at an application name based on main class, which may not work on all platforms or JVMs. Use the cinnamon.application property to set the application name directly.

        Uses the sun.java.command property, or uses the JAVA_MAIN_CLASS environment variable, or otherwise defaults to the process identifier from RuntimeMXBean (usually pid@hostname).

        Returns:
        default application name

      • getMainClassFromCommand

        public static java.lang.String getMainClassFromCommand​(java.lang.String command)
        Get the main class from a command string.

        The command may be either a main class and arguments, or a jar file and arguments.

        Parameters:
        command - full command string
        Returns:
        main class in the command string, otherwise null

      • getMainClassFromEnvironment

        public static java.lang.String getMainClassFromEnvironment​(java.util.Map<java.lang.String,​java.lang.String> env)
        Get the main class from environment variables.

        Looks for JAVA_MAIN_CLASS variables. If these have a PID suffix, then uses the variable with the highest PID (most recent).

        Parameters:
        env - map of environment variables
        Returns:
        main class from the environment, otherwise null