Package org.jacoco.core.runtime

Class LoggerRuntime

  • All Implemented Interfaces:
    IExecutionDataAccessorGenerator, IRuntime
    public class LoggerRuntime
extends AbstractRuntime
    This IRuntime implementation uses the Java logging API to report coverage data.

    The implementation uses a dedicated log channel. Instrumented classes call Logger.log(Level, String, Object[]) with the class identifier in the first slot of the parameter array. The runtime implements a Handler for this channel that puts the probe data structure into the first slot of the parameter array.

    • Constructor Summary

      Constructors 
      Constructor Description
      LoggerRuntime()
      Creates a new runtime.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      int generateDataAccessor​(long classid, java.lang.String classname, int probecount, org.objectweb.asm.MethodVisitor mv)
      This method generates the byte code required to obtain the coverage data structure for the class with the given id.
      void shutdown()
      Allows the coverage runtime to cleanup internals.
      void startup​(RuntimeData data)
      Subclasses must call this method when overwriting it.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • LoggerRuntime

        public LoggerRuntime()
        Creates a new runtime.

    • Method Detail

      • generateDataAccessor

        public int generateDataAccessor​(long classid,
                                java.lang.String classname,
                                int probecount,
                                org.objectweb.asm.MethodVisitor mv)
        Description copied from interface: IExecutionDataAccessorGenerator
        This method generates the byte code required to obtain the coverage data structure for the class with the given id. Typically the instrumentation process will embed this code into a method that is called on class initialization. This method can be called at any time even outside the target VM. The generated code must push a boolean[] instance to the operand stack. Except this result object the generated code must not make any assumptions about the structure of the embedding method or class. The generated code must not use or allocate local variables.
        Parameters:
        classid - identifier of the class
        classname - VM class name
        probecount - probe count for this class
        mv - code output
        Returns:
        additional stack size required by the implementation, including the instance pushed to the stack

      • startup

        public void startup​(RuntimeData data)
             throws java.lang.Exception
        Description copied from class: AbstractRuntime
        Subclasses must call this method when overwriting it.
        Specified by:
        startup in interface IRuntime
        Overrides:
        startup in class AbstractRuntime
        Parameters:
        data - the execution data for this runtime
        Throws:
        java.lang.Exception - any internal problem during startup

      • shutdown

        public void shutdown()
        Description copied from interface: IRuntime
        Allows the coverage runtime to cleanup internals. This class should be called when classes instrumented for this runtime are not used any more.