Package com.martensigwart.fakeload

Interface LoadSimulator

All Superinterfaces:
java.lang.Runnable
All Known Implementing Classes:
AbstractLoadSimulator, CpuSimulator, DiskInputSimulator, DiskOutputSimulator, FibonacciCpuSimulator, MemorySimulator, RandomAccessDiskInputSimulator, RandomAccessDiskOutputSimulator
public interface LoadSimulator
extends java.lang.Runnable
Represents a thread simulating some system load. System load can be CPU, memory, Disk I/O, ...

This type simulates some system load when started as a thread. Further, it defines methods for getting and setting as well as increasing and decreasing some load parameter. Implementing classes should use the load parameter, set by those methods, for their simulation logic.

Class AbstractLoadSimulator provides a skeleton implementation of a LoadSimulator. Subclassing AbstractLoadSimulator is the preferred way for clients to create new LoadSimulator classes, as it already provides common simulation behavior as well as synchronization mechanisms.

Since:
1.8
See Also:
Runnable, AbstractLoadSimulator

  • Method Summary

    Modifier and Type Method Description
    void decreaseLoad​(long delta)
    Decreases the load of the simulator by delta.
    long getLoad()  
    long getMaximumLoad()  
    void increaseLoad​(long delta)
    Increases the load of the simulator by delta.
    boolean isMaximumLoad()  
    boolean isZeroLoad()  
    void run()
    Executes the simulation logic.
    void setLoad​(long desiredLoad)
    Sets the load to be simulated.

  • Method Details

    • run

      void run()
      Executes the simulation logic. This method should be used to implement the simulator's main simulation logic, i.e. the actual system load (CPU, memory, etc.) for which this LoadSimulator is responsible should be simulated.

      From Runnable.run():

      Specified by:
      run in interface java.lang.Runnable

    • getLoad

      long getLoad()
      Returns:
      returns the load to be simulated

    • setLoad

      void setLoad​(long desiredLoad)
      Sets the load to be simulated.
      Parameters:
      desiredLoad - the load to be simulated

    • increaseLoad

      void increaseLoad​(long delta)
      Increases the load of the simulator by delta.
      Parameters:
      delta - the amount by which the load will be increased

    • decreaseLoad

      void decreaseLoad​(long delta)
      Decreases the load of the simulator by delta.
      Parameters:
      delta - the amount by which the load will be decreased

    • getMaximumLoad

      long getMaximumLoad()

    • isMaximumLoad

      boolean isMaximumLoad()

    • isZeroLoad

      boolean isZeroLoad()