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.ExponentialMovingAverages implements com.codahale.metrics.MovingAverages
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: com.codahale.metrics.ExponentialMovingAverages
  super_class: java.lang.Object
{
  private static final long TICK_INTERVAL;
    descriptor: J
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private final com.codahale.metrics.EWMA m1Rate;
    descriptor: Lcom/codahale/metrics/EWMA;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final com.codahale.metrics.EWMA m5Rate;
    descriptor: Lcom/codahale/metrics/EWMA;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final com.codahale.metrics.EWMA m15Rate;
    descriptor: Lcom/codahale/metrics/EWMA;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

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

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

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=3, locals=0, args_size=0
         0: .line 14
            getstatic java.util.concurrent.TimeUnit.SECONDS:Ljava/util/concurrent/TimeUnit;
            ldc 5
            invokevirtual java.util.concurrent.TimeUnit.toNanos:(J)J
            putstatic com.codahale.metrics.ExponentialMovingAverages.TICK_INTERVAL:J
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.codahale.metrics.ExponentialMovingAverages this
         0: .line 27
            aload 0 /* this */
            invokestatic com.codahale.metrics.Clock.defaultClock:()Lcom/codahale/metrics/Clock;
            invokespecial com.codahale.metrics.ExponentialMovingAverages.<init>:(Lcom/codahale/metrics/Clock;)V
         1: .line 28
            return
        end local 0 // com.codahale.metrics.ExponentialMovingAverages this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lcom/codahale/metrics/ExponentialMovingAverages;

  public void <init>(com.codahale.metrics.Clock);
    descriptor: (Lcom/codahale/metrics/Clock;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=2, args_size=2
        start local 0 // com.codahale.metrics.ExponentialMovingAverages this
        start local 1 // com.codahale.metrics.Clock clock
         0: .line 33
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 16
            aload 0 /* this */
            invokestatic com.codahale.metrics.EWMA.oneMinuteEWMA:()Lcom/codahale/metrics/EWMA;
            putfield com.codahale.metrics.ExponentialMovingAverages.m1Rate:Lcom/codahale/metrics/EWMA;
         2: .line 17
            aload 0 /* this */
            invokestatic com.codahale.metrics.EWMA.fiveMinuteEWMA:()Lcom/codahale/metrics/EWMA;
            putfield com.codahale.metrics.ExponentialMovingAverages.m5Rate:Lcom/codahale/metrics/EWMA;
         3: .line 18
            aload 0 /* this */
            invokestatic com.codahale.metrics.EWMA.fifteenMinuteEWMA:()Lcom/codahale/metrics/EWMA;
            putfield com.codahale.metrics.ExponentialMovingAverages.m15Rate:Lcom/codahale/metrics/EWMA;
         4: .line 34
            aload 0 /* this */
            aload 1 /* clock */
            putfield com.codahale.metrics.ExponentialMovingAverages.clock:Lcom/codahale/metrics/Clock;
         5: .line 35
            aload 0 /* this */
            new java.util.concurrent.atomic.AtomicLong
            dup
            aload 0 /* this */
            getfield com.codahale.metrics.ExponentialMovingAverages.clock:Lcom/codahale/metrics/Clock;
            invokevirtual com.codahale.metrics.Clock.getTick:()J
            invokespecial java.util.concurrent.atomic.AtomicLong.<init>:(J)V
            putfield com.codahale.metrics.ExponentialMovingAverages.lastTick:Ljava/util/concurrent/atomic/AtomicLong;
         6: .line 36
            return
        end local 1 // com.codahale.metrics.Clock clock
        end local 0 // com.codahale.metrics.ExponentialMovingAverages this
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0    7     0   this  Lcom/codahale/metrics/ExponentialMovingAverages;
            0    7     1  clock  Lcom/codahale/metrics/Clock;
    MethodParameters:
       Name  Flags
      clock  

  public void update(long);
    descriptor: (J)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=3, args_size=2
        start local 0 // com.codahale.metrics.ExponentialMovingAverages this
        start local 1 // long n
         0: .line 40
            aload 0 /* this */
            getfield com.codahale.metrics.ExponentialMovingAverages.m1Rate:Lcom/codahale/metrics/EWMA;
            lload 1 /* n */
            invokevirtual com.codahale.metrics.EWMA.update:(J)V
         1: .line 41
            aload 0 /* this */
            getfield com.codahale.metrics.ExponentialMovingAverages.m5Rate:Lcom/codahale/metrics/EWMA;
            lload 1 /* n */
            invokevirtual com.codahale.metrics.EWMA.update:(J)V
         2: .line 42
            aload 0 /* this */
            getfield com.codahale.metrics.ExponentialMovingAverages.m15Rate:Lcom/codahale/metrics/EWMA;
            lload 1 /* n */
            invokevirtual com.codahale.metrics.EWMA.update:(J)V
         3: .line 43
            return
        end local 1 // long n
        end local 0 // com.codahale.metrics.ExponentialMovingAverages this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lcom/codahale/metrics/ExponentialMovingAverages;
            0    4     1     n  J
    MethodParameters:
      Name  Flags
      n     

  public void tickIfNecessary();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=6, locals=13, args_size=1
        start local 0 // com.codahale.metrics.ExponentialMovingAverages this
         0: .line 47
            aload 0 /* this */
            getfield com.codahale.metrics.ExponentialMovingAverages.lastTick:Ljava/util/concurrent/atomic/AtomicLong;
            invokevirtual java.util.concurrent.atomic.AtomicLong.get:()J
            lstore 1 /* oldTick */
        start local 1 // long oldTick
         1: .line 48
            aload 0 /* this */
            getfield com.codahale.metrics.ExponentialMovingAverages.clock:Lcom/codahale/metrics/Clock;
            invokevirtual com.codahale.metrics.Clock.getTick:()J
            lstore 3 /* newTick */
        start local 3 // long newTick
         2: .line 49
            lload 3 /* newTick */
            lload 1 /* oldTick */
            lsub
            lstore 5 /* age */
        start local 5 // long age
         3: .line 50
            lload 5 /* age */
            getstatic com.codahale.metrics.ExponentialMovingAverages.TICK_INTERVAL:J
            lcmp
            ifle 14
         4: .line 51
            lload 3 /* newTick */
            lload 5 /* age */
            getstatic com.codahale.metrics.ExponentialMovingAverages.TICK_INTERVAL:J
            lrem
            lsub
            lstore 7 /* newIntervalStartTick */
        start local 7 // long newIntervalStartTick
         5: .line 52
            aload 0 /* this */
            getfield com.codahale.metrics.ExponentialMovingAverages.lastTick:Ljava/util/concurrent/atomic/AtomicLong;
            lload 1 /* oldTick */
            lload 7 /* newIntervalStartTick */
            invokevirtual java.util.concurrent.atomic.AtomicLong.compareAndSet:(JJ)Z
            ifeq 14
         6: .line 53
            lload 5 /* age */
            getstatic com.codahale.metrics.ExponentialMovingAverages.TICK_INTERVAL:J
            ldiv
            lstore 9 /* requiredTicks */
        start local 9 // long requiredTicks
         7: .line 54
            lconst_0
            lstore 11 /* i */
        start local 11 // long i
         8: goto 13
         9: .line 55
      StackMap locals: com.codahale.metrics.ExponentialMovingAverages long long long long long long
      StackMap stack:
            aload 0 /* this */
            getfield com.codahale.metrics.ExponentialMovingAverages.m1Rate:Lcom/codahale/metrics/EWMA;
            invokevirtual com.codahale.metrics.EWMA.tick:()V
        10: .line 56
            aload 0 /* this */
            getfield com.codahale.metrics.ExponentialMovingAverages.m5Rate:Lcom/codahale/metrics/EWMA;
            invokevirtual com.codahale.metrics.EWMA.tick:()V
        11: .line 57
            aload 0 /* this */
            getfield com.codahale.metrics.ExponentialMovingAverages.m15Rate:Lcom/codahale/metrics/EWMA;
            invokevirtual com.codahale.metrics.EWMA.tick:()V
        12: .line 54
            lload 11 /* i */
            lconst_1
            ladd
            lstore 11 /* i */
      StackMap locals:
      StackMap stack:
        13: lload 11 /* i */
            lload 9 /* requiredTicks */
            lcmp
            iflt 9
        end local 11 // long i
        end local 9 // long requiredTicks
        end local 7 // long newIntervalStartTick
        14: .line 61
      StackMap locals:
      StackMap stack:
            return
        end local 5 // long age
        end local 3 // long newTick
        end local 1 // long oldTick
        end local 0 // com.codahale.metrics.ExponentialMovingAverages this
      LocalVariableTable:
        Start  End  Slot                  Name  Signature
            0   15     0                  this  Lcom/codahale/metrics/ExponentialMovingAverages;
            1   15     1               oldTick  J
            2   15     3               newTick  J
            3   15     5                   age  J
            5   14     7  newIntervalStartTick  J
            7   14     9         requiredTicks  J
            8   14    11                     i  J

  public double getM1Rate();
    descriptor: ()D
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.codahale.metrics.ExponentialMovingAverages this
         0: .line 65
            aload 0 /* this */
            getfield com.codahale.metrics.ExponentialMovingAverages.m1Rate:Lcom/codahale/metrics/EWMA;
            getstatic java.util.concurrent.TimeUnit.SECONDS:Ljava/util/concurrent/TimeUnit;
            invokevirtual com.codahale.metrics.EWMA.getRate:(Ljava/util/concurrent/TimeUnit;)D
            dreturn
        end local 0 // com.codahale.metrics.ExponentialMovingAverages this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/codahale/metrics/ExponentialMovingAverages;

  public double getM5Rate();
    descriptor: ()D
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.codahale.metrics.ExponentialMovingAverages this
         0: .line 70
            aload 0 /* this */
            getfield com.codahale.metrics.ExponentialMovingAverages.m5Rate:Lcom/codahale/metrics/EWMA;
            getstatic java.util.concurrent.TimeUnit.SECONDS:Ljava/util/concurrent/TimeUnit;
            invokevirtual com.codahale.metrics.EWMA.getRate:(Ljava/util/concurrent/TimeUnit;)D
            dreturn
        end local 0 // com.codahale.metrics.ExponentialMovingAverages this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/codahale/metrics/ExponentialMovingAverages;

  public double getM15Rate();
    descriptor: ()D
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // com.codahale.metrics.ExponentialMovingAverages this
         0: .line 75
            aload 0 /* this */
            getfield com.codahale.metrics.ExponentialMovingAverages.m15Rate:Lcom/codahale/metrics/EWMA;
            getstatic java.util.concurrent.TimeUnit.SECONDS:Ljava/util/concurrent/TimeUnit;
            invokevirtual com.codahale.metrics.EWMA.getRate:(Ljava/util/concurrent/TimeUnit;)D
            dreturn
        end local 0 // com.codahale.metrics.ExponentialMovingAverages this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lcom/codahale/metrics/ExponentialMovingAverages;
}
SourceFile: "ExponentialMovingAverages.java"