Package groovy.lang

Class BenchmarkInterceptor

java.lang.Object
groovy.lang.BenchmarkInterceptor
All Implemented Interfaces:
Interceptor
public class BenchmarkInterceptor extends Object implements Interceptor
Interceptor that registers the timestamp of each method call before and after invocation. The timestamps are stored internally and can be retrieved through the with the 
getCalls()
and 
statistic()
API.

Example usage: 

 def proxy = ProxyMetaClass.getInstance(ArrayList.class)
 proxy.interceptor = new BenchmarkInterceptor()
 proxy.use {
     def list = (0..10000).collect{ it }
     4.times { list.size() }
     4000.times { list.set(it, it+1) }
 }
 proxy.interceptor.statistic()
Which produces the following output: 
 [[size, 4, 0], [set, 4000, 21]]

  • Field Details

    • calls

      protected Map calls

  • Constructor Details

    • BenchmarkInterceptor

      public BenchmarkInterceptor()

  • Method Details

    • getCalls

      public Map getCalls()
      Returns the raw data associated with the current benchmark run.

    • reset

      public void reset()
      Resets all the benchmark data on this object.

    • beforeInvoke

      public Object beforeInvoke(Object object, String methodName, Object[] arguments)
      This code is executed before the method is called.
      Specified by:
      beforeInvoke in interface Interceptor
      Parameters:
      object - receiver object for the method call
      methodName - name of the method to call
      arguments - arguments to the method call
      Returns:
      null relays this result.

    • afterInvoke

      public Object afterInvoke(Object object, String methodName, Object[] arguments, Object result)
      This code is executed after the method is called.
      Specified by:
      afterInvoke in interface Interceptor
      Parameters:
      object - receiver object for the called method
      methodName - name of the called method
      arguments - arguments to the called method
      result - result of the executed method call or result of beforeInvoke if method was not called
      Returns:
      result

    • doInvoke

      public boolean doInvoke()
      The call should be invoked separately
      Specified by:
      doInvoke in interface Interceptor
      Returns:
      true

    • statistic

      public List statistic()
      Returns benchmark statistics as a List<Object[]>. AccumulateTime is measured in milliseconds and is as accurate as System.currentTimeMillis() allows it to be.
      Returns:
      a list of lines, each item is [methodname, numberOfCalls, accumulatedTime]