http://metrics.dropwizard.io/metrics-core: Metrics is a Java library which gives you unparalleled insight into what your code does in production. Metrics provides a powerful toolkit of ways to measure the behavior of critical components in your production environment.
  • Coda Hale
  • Ryan Tenney
  • Artem Prigoda 
public class com.codahale.metrics.Meter implements com.codahale.metrics.Metered
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: com.codahale.metrics.Meter
  super_class: java.lang.Object
{
  private final com.codahale.metrics.MovingAverages movingAverages;
    descriptor: Lcom/codahale/metrics/MovingAverages;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final java.util.concurrent.atomic.LongAdder count;
    descriptor: Ljava/util/concurrent/atomic/LongAdder;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final long startTime;
    descriptor: J
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final com.codahale.metrics.Clock clock;
    descriptor: Lcom/codahale/metrics/Clock;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  public void <init>(com.codahale.metrics.MovingAverages);
    descriptor: (Lcom/codahale/metrics/MovingAverages;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=2, args_size=2
        start local 0 // com.codahale.metrics.Meter this
        start local 1 // com.codahale.metrics.MovingAverages movingAverages
         0: .line 25
            aload 0 /* this */
            aload 1 /* movingAverages */
            invokestatic com.codahale.metrics.Clock.defaultClock:()Lcom/codahale/metrics/Clock;
            invokespecial com.codahale.metrics.Meter.<init>:(Lcom/codahale/metrics/MovingAverages;Lcom/codahale/metrics/Clock;)V
         1: .line 26
            return
        end local 1 // com.codahale.metrics.MovingAverages movingAverages
        end local 0 // com.codahale.metrics.Meter this
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0    2     0            this  Lcom/codahale/metrics/Meter;
            0    2     1  movingAverages  Lcom/codahale/metrics/MovingAverages;
    MethodParameters:
                Name  Flags
      movingAverages  

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.codahale.metrics.Meter this
         0: .line 32
            aload 0 /* this */
            invokestatic com.codahale.metrics.Clock.defaultClock:()Lcom/codahale/metrics/Clock;
            invokespecial com.codahale.metrics.Meter.<init>:(Lcom/codahale/metrics/Clock;)V
         1: .line 33
            return
        end local 0 // com.codahale.metrics.Meter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/codahale/metrics/Meter;

  public void <init>(com.codahale.metrics.Clock);
    descriptor: (Lcom/codahale/metrics/Clock;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=2
        start local 0 // com.codahale.metrics.Meter this
        start local 1 // com.codahale.metrics.Clock clock
         0: .line 41
            aload 0 /* this */
            new com.codahale.metrics.ExponentialMovingAverages
            dup
            aload 1 /* clock */
            invokespecial com.codahale.metrics.ExponentialMovingAverages.<init>:(Lcom/codahale/metrics/Clock;)V
            aload 1 /* clock */
            invokespecial com.codahale.metrics.Meter.<init>:(Lcom/codahale/metrics/MovingAverages;Lcom/codahale/metrics/Clock;)V
         1: .line 42
            return
        end local 1 // com.codahale.metrics.Clock clock
        end local 0 // com.codahale.metrics.Meter this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    2     0   this  Lcom/codahale/metrics/Meter;
            0    2     1  clock  Lcom/codahale/metrics/Clock;
    MethodParameters:
       Name  Flags
      clock  

  public void <init>(com.codahale.metrics.MovingAverages, com.codahale.metrics.Clock);
    descriptor: (Lcom/codahale/metrics/MovingAverages;Lcom/codahale/metrics/Clock;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=3
        start local 0 // com.codahale.metrics.Meter this
        start local 1 // com.codahale.metrics.MovingAverages movingAverages
        start local 2 // com.codahale.metrics.Clock clock
         0: .line 50
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 15
            aload 0 /* this */
            new java.util.concurrent.atomic.LongAdder
            dup
            invokespecial java.util.concurrent.atomic.LongAdder.<init>:()V
            putfield com.codahale.metrics.Meter.count:Ljava/util/concurrent/atomic/LongAdder;
         2: .line 51
            aload 0 /* this */
            aload 1 /* movingAverages */
            putfield com.codahale.metrics.Meter.movingAverages:Lcom/codahale/metrics/MovingAverages;
         3: .line 52
            aload 0 /* this */
            aload 2 /* clock */
            putfield com.codahale.metrics.Meter.clock:Lcom/codahale/metrics/Clock;
         4: .line 53
            aload 0 /* this */
            aload 0 /* this */
            getfield com.codahale.metrics.Meter.clock:Lcom/codahale/metrics/Clock;
            invokevirtual com.codahale.metrics.Clock.getTick:()J
            putfield com.codahale.metrics.Meter.startTime:J
         5: .line 54
            return
        end local 2 // com.codahale.metrics.Clock clock
        end local 1 // com.codahale.metrics.MovingAverages movingAverages
        end local 0 // com.codahale.metrics.Meter this
      LocalVariableTable:
        Start  End  Slot            Name  Signature
            0    6     0            this  Lcom/codahale/metrics/Meter;
            0    6     1  movingAverages  Lcom/codahale/metrics/MovingAverages;
            0    6     2           clock  Lcom/codahale/metrics/Clock;
    MethodParameters:
                Name  Flags
      movingAverages  
      clock           

  public void mark();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // com.codahale.metrics.Meter this
         0: .line 60
            aload 0 /* this */
            lconst_1
            invokevirtual com.codahale.metrics.Meter.mark:(J)V
         1: .line 61
            return
        end local 0 // com.codahale.metrics.Meter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/codahale/metrics/Meter;

  public void mark(long);
    descriptor: (J)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=2
        start local 0 // com.codahale.metrics.Meter this
        start local 1 // long n
         0: .line 69
            aload 0 /* this */
            getfield com.codahale.metrics.Meter.movingAverages:Lcom/codahale/metrics/MovingAverages;
            invokeinterface com.codahale.metrics.MovingAverages.tickIfNecessary:()V
         1: .line 70
            aload 0 /* this */
            getfield com.codahale.metrics.Meter.count:Ljava/util/concurrent/atomic/LongAdder;
            lload 1 /* n */
            invokevirtual java.util.concurrent.atomic.LongAdder.add:(J)V
         2: .line 71
            aload 0 /* this */
            getfield com.codahale.metrics.Meter.movingAverages:Lcom/codahale/metrics/MovingAverages;
            lload 1 /* n */
            invokeinterface com.codahale.metrics.MovingAverages.update:(J)V
         3: .line 72
            return
        end local 1 // long n
        end local 0 // com.codahale.metrics.Meter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lcom/codahale/metrics/Meter;
            0    4     1     n  J
    MethodParameters:
      Name  Flags
      n     

  public long getCount();
    descriptor: ()J
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.codahale.metrics.Meter this
         0: .line 76
            aload 0 /* this */
            getfield com.codahale.metrics.Meter.count:Ljava/util/concurrent/atomic/LongAdder;
            invokevirtual java.util.concurrent.atomic.LongAdder.sum:()J
            lreturn
        end local 0 // com.codahale.metrics.Meter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/codahale/metrics/Meter;

  public double getFifteenMinuteRate();
    descriptor: ()D
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.codahale.metrics.Meter this
         0: .line 81
            aload 0 /* this */
            getfield com.codahale.metrics.Meter.movingAverages:Lcom/codahale/metrics/MovingAverages;
            invokeinterface com.codahale.metrics.MovingAverages.tickIfNecessary:()V
         1: .line 82
            aload 0 /* this */
            getfield com.codahale.metrics.Meter.movingAverages:Lcom/codahale/metrics/MovingAverages;
            invokeinterface com.codahale.metrics.MovingAverages.getM15Rate:()D
            dreturn
        end local 0 // com.codahale.metrics.Meter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/codahale/metrics/Meter;

  public double getFiveMinuteRate();
    descriptor: ()D
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.codahale.metrics.Meter this
         0: .line 87
            aload 0 /* this */
            getfield com.codahale.metrics.Meter.movingAverages:Lcom/codahale/metrics/MovingAverages;
            invokeinterface com.codahale.metrics.MovingAverages.tickIfNecessary:()V
         1: .line 88
            aload 0 /* this */
            getfield com.codahale.metrics.Meter.movingAverages:Lcom/codahale/metrics/MovingAverages;
            invokeinterface com.codahale.metrics.MovingAverages.getM5Rate:()D
            dreturn
        end local 0 // com.codahale.metrics.Meter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/codahale/metrics/Meter;

  public double getMeanRate();
    descriptor: ()D
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=3, args_size=1
        start local 0 // com.codahale.metrics.Meter this
         0: .line 93
            aload 0 /* this */
            invokevirtual com.codahale.metrics.Meter.getCount:()J
            lconst_0
            lcmp
            ifne 2
         1: .line 94
            dconst_0
            dreturn
         2: .line 96
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield com.codahale.metrics.Meter.clock:Lcom/codahale/metrics/Clock;
            invokevirtual com.codahale.metrics.Clock.getTick:()J
            aload 0 /* this */
            getfield com.codahale.metrics.Meter.startTime:J
            lsub
            l2d
            dstore 1 /* elapsed */
        start local 1 // double elapsed
         3: .line 97
            aload 0 /* this */
            invokevirtual com.codahale.metrics.Meter.getCount:()J
            l2d
            dload 1 /* elapsed */
            ddiv
            getstatic java.util.concurrent.TimeUnit.SECONDS:Ljava/util/concurrent/TimeUnit;
            lconst_1
            invokevirtual java.util.concurrent.TimeUnit.toNanos:(J)J
            l2d
            dmul
            dreturn
        end local 1 // double elapsed
        end local 0 // com.codahale.metrics.Meter this
      LocalVariableTable:
        Start  End  Slot     Name  Signature
            0    4     0     this  Lcom/codahale/metrics/Meter;
            3    4     1  elapsed  D

  public double getOneMinuteRate();
    descriptor: ()D
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.codahale.metrics.Meter this
         0: .line 103
            aload 0 /* this */
            getfield com.codahale.metrics.Meter.movingAverages:Lcom/codahale/metrics/MovingAverages;
            invokeinterface com.codahale.metrics.MovingAverages.tickIfNecessary:()V
         1: .line 104
            aload 0 /* this */
            getfield com.codahale.metrics.Meter.movingAverages:Lcom/codahale/metrics/MovingAverages;
            invokeinterface com.codahale.metrics.MovingAverages.getM1Rate:()D
            dreturn
        end local 0 // com.codahale.metrics.Meter this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/codahale/metrics/Meter;
}
SourceFile: "Meter.java"