org.terracotta/statistics/2.1 : org/terracotta/statistics/archive/StatisticSampler.class

StatisticSampler
https://github.com/Terracotta-OSS/statistics: A statistics framework used inside Ehcache and the Terracotta products
The Apache License, Version 2.0
Chris Dennis (Terracotta Inc., a wholly-owned subsidiary of Software AG USA, Inc.)
Chris Schanck (Terracotta Inc., a wholly-owned subsidiary of Software AG USA, Inc.)
Ludovic Orban (Terracotta Inc., a wholly-owned subsidiary of Software AG USA, Inc.)
public class org.terracotta.statistics.archive.StatisticSampler<T extends java.io.Serializable>
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.terracotta.statistics.archive.StatisticSampler
  super_class: java.lang.Object
{
  private final boolean exclusiveExecutor;
    descriptor: Z
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final java.util.concurrent.ScheduledExecutorService executor;
    descriptor: Ljava/util/concurrent/ScheduledExecutorService;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  private final org.terracotta.statistics.archive.StatisticSampler$SamplingTask<T> task;
    descriptor: Lorg/terracotta/statistics/archive/StatisticSampler$SamplingTask;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Lorg/terracotta/statistics/archive/StatisticSampler$SamplingTask<TT;>;

  private java.util.concurrent.ScheduledFuture<?> currentExecution;
    descriptor: Ljava/util/concurrent/ScheduledFuture;
    flags: (0x0002) ACC_PRIVATE
    Signature: Ljava/util/concurrent/ScheduledFuture<*>;

  private long period;
    descriptor: J
    flags: (0x0002) ACC_PRIVATE

  public void <init>(long, java.util.concurrent.TimeUnit, org.terracotta.statistics.ValueStatistic<T>, java.util.function.Consumer<org.terracotta.statistics.Sample<T>>, java.util.function.LongSupplier);
    descriptor: (JLjava/util/concurrent/TimeUnit;Lorg/terracotta/statistics/ValueStatistic;Ljava/util/function/Consumer;Ljava/util/function/LongSupplier;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=8, locals=7, args_size=6
        start local 0 // org.terracotta.statistics.archive.StatisticSampler this
        start local 1 // long time
        start local 3 // java.util.concurrent.TimeUnit unit
        start local 4 // org.terracotta.statistics.ValueStatistic statistic
        start local 5 // java.util.function.Consumer sink
        start local 6 // java.util.function.LongSupplier timeSupplier
         0: .line 43
            aload 0 /* this */
            aconst_null
            lload 1 /* time */
            aload 3 /* unit */
            aload 4 /* statistic */
            aload 5 /* sink */
            aload 6 /* timeSupplier */
            invokespecial org.terracotta.statistics.archive.StatisticSampler.<init>:(Ljava/util/concurrent/ScheduledExecutorService;JLjava/util/concurrent/TimeUnit;Lorg/terracotta/statistics/ValueStatistic;Ljava/util/function/Consumer;Ljava/util/function/LongSupplier;)V
         1: .line 44
            return
        end local 6 // java.util.function.LongSupplier timeSupplier
        end local 5 // java.util.function.Consumer sink
        end local 4 // org.terracotta.statistics.ValueStatistic statistic
        end local 3 // java.util.concurrent.TimeUnit unit
        end local 1 // long time
        end local 0 // org.terracotta.statistics.archive.StatisticSampler this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    2     0          this  Lorg/terracotta/statistics/archive/StatisticSampler<TT;>;
            0    2     1          time  J
            0    2     3          unit  Ljava/util/concurrent/TimeUnit;
            0    2     4     statistic  Lorg/terracotta/statistics/ValueStatistic<TT;>;
            0    2     5          sink  Ljava/util/function/Consumer<Lorg/terracotta/statistics/Sample<TT;>;>;
            0    2     6  timeSupplier  Ljava/util/function/LongSupplier;
    Signature: (JLjava/util/concurrent/TimeUnit;Lorg/terracotta/statistics/ValueStatistic<TT;>;Ljava/util/function/Consumer<Lorg/terracotta/statistics/Sample<TT;>;>;Ljava/util/function/LongSupplier;)V
    MethodParameters:
              Name  Flags
      time          
      unit          
      statistic     
      sink          
      timeSupplier  

  public void <init>(java.util.concurrent.ScheduledExecutorService, long, java.util.concurrent.TimeUnit, org.terracotta.statistics.ValueStatistic<T>, java.util.function.Consumer<org.terracotta.statistics.Sample<T>>, java.util.function.LongSupplier);
    descriptor: (Ljava/util/concurrent/ScheduledExecutorService;JLjava/util/concurrent/TimeUnit;Lorg/terracotta/statistics/ValueStatistic;Ljava/util/function/Consumer;Ljava/util/function/LongSupplier;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=6, locals=8, args_size=7
        start local 0 // org.terracotta.statistics.archive.StatisticSampler this
        start local 1 // java.util.concurrent.ScheduledExecutorService executor
        start local 2 // long time
        start local 4 // java.util.concurrent.TimeUnit unit
        start local 5 // org.terracotta.statistics.ValueStatistic statistic
        start local 6 // java.util.function.Consumer sink
        start local 7 // java.util.function.LongSupplier timeSupplier
         0: .line 46
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 47
            aload 1 /* executor */
            ifnonnull 5
         2: .line 48
            aload 0 /* this */
            iconst_1
            putfield org.terracotta.statistics.archive.StatisticSampler.exclusiveExecutor:Z
         3: .line 49
            aload 0 /* this */
            new org.terracotta.statistics.archive.StatisticSampler$SamplerThreadFactory
            dup
            invokespecial org.terracotta.statistics.archive.StatisticSampler$SamplerThreadFactory.<init>:()V
            invokestatic java.util.concurrent.Executors.newSingleThreadScheduledExecutor:(Ljava/util/concurrent/ThreadFactory;)Ljava/util/concurrent/ScheduledExecutorService;
            putfield org.terracotta.statistics.archive.StatisticSampler.executor:Ljava/util/concurrent/ScheduledExecutorService;
         4: .line 50
            goto 7
         5: .line 51
      StackMap locals: org.terracotta.statistics.archive.StatisticSampler java.util.concurrent.ScheduledExecutorService long java.util.concurrent.TimeUnit org.terracotta.statistics.ValueStatistic java.util.function.Consumer java.util.function.LongSupplier
      StackMap stack:
            aload 0 /* this */
            iconst_0
            putfield org.terracotta.statistics.archive.StatisticSampler.exclusiveExecutor:Z
         6: .line 52
            aload 0 /* this */
            aload 1 /* executor */
            putfield org.terracotta.statistics.archive.StatisticSampler.executor:Ljava/util/concurrent/ScheduledExecutorService;
         7: .line 54
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 4 /* unit */
            lload 2 /* time */
            invokevirtual java.util.concurrent.TimeUnit.toNanos:(J)J
            putfield org.terracotta.statistics.archive.StatisticSampler.period:J
         8: .line 55
            aload 0 /* this */
            new org.terracotta.statistics.archive.StatisticSampler$SamplingTask
            dup
            aload 5 /* statistic */
            aload 6 /* sink */
            aload 7 /* timeSupplier */
            invokespecial org.terracotta.statistics.archive.StatisticSampler$SamplingTask.<init>:(Lorg/terracotta/statistics/ValueStatistic;Ljava/util/function/Consumer;Ljava/util/function/LongSupplier;)V
            putfield org.terracotta.statistics.archive.StatisticSampler.task:Lorg/terracotta/statistics/archive/StatisticSampler$SamplingTask;
         9: .line 56
            return
        end local 7 // java.util.function.LongSupplier timeSupplier
        end local 6 // java.util.function.Consumer sink
        end local 5 // org.terracotta.statistics.ValueStatistic statistic
        end local 4 // java.util.concurrent.TimeUnit unit
        end local 2 // long time
        end local 1 // java.util.concurrent.ScheduledExecutorService executor
        end local 0 // org.terracotta.statistics.archive.StatisticSampler this
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0   10     0          this  Lorg/terracotta/statistics/archive/StatisticSampler<TT;>;
            0   10     1      executor  Ljava/util/concurrent/ScheduledExecutorService;
            0   10     2          time  J
            0   10     4          unit  Ljava/util/concurrent/TimeUnit;
            0   10     5     statistic  Lorg/terracotta/statistics/ValueStatistic<TT;>;
            0   10     6          sink  Ljava/util/function/Consumer<Lorg/terracotta/statistics/Sample<TT;>;>;
            0   10     7  timeSupplier  Ljava/util/function/LongSupplier;
    Signature: (Ljava/util/concurrent/ScheduledExecutorService;JLjava/util/concurrent/TimeUnit;Lorg/terracotta/statistics/ValueStatistic<TT;>;Ljava/util/function/Consumer<Lorg/terracotta/statistics/Sample<TT;>;>;Ljava/util/function/LongSupplier;)V
    MethodParameters:
              Name  Flags
      executor      
      time          
      unit          
      statistic     
      sink          
      timeSupplier  

  public synchronized void setPeriod(long, java.util.concurrent.TimeUnit);
    descriptor: (JLjava/util/concurrent/TimeUnit;)V
    flags: (0x0021) ACC_PUBLIC, ACC_SYNCHRONIZED
    Code:
      stack=4, locals=4, args_size=3
        start local 0 // org.terracotta.statistics.archive.StatisticSampler this
        start local 1 // long time
        start local 3 // java.util.concurrent.TimeUnit unit
         0: .line 59
            aload 0 /* this */
            aload 3 /* unit */
            lload 1 /* time */
            invokevirtual java.util.concurrent.TimeUnit.toNanos:(J)J
            putfield org.terracotta.statistics.archive.StatisticSampler.period:J
         1: .line 60
            aload 0 /* this */
            getfield org.terracotta.statistics.archive.StatisticSampler.currentExecution:Ljava/util/concurrent/ScheduledFuture;
            ifnull 4
            aload 0 /* this */
            getfield org.terracotta.statistics.archive.StatisticSampler.currentExecution:Ljava/util/concurrent/ScheduledFuture;
            invokeinterface java.util.concurrent.ScheduledFuture.isDone:()Z
            ifne 4
         2: .line 61
            aload 0 /* this */
            invokevirtual org.terracotta.statistics.archive.StatisticSampler.stop:()V
         3: .line 62
            aload 0 /* this */
            invokevirtual org.terracotta.statistics.archive.StatisticSampler.start:()V
         4: .line 64
      StackMap locals:
      StackMap stack:
            return
        end local 3 // java.util.concurrent.TimeUnit unit
        end local 1 // long time
        end local 0 // org.terracotta.statistics.archive.StatisticSampler this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lorg/terracotta/statistics/archive/StatisticSampler<TT;>;
            0    5     1  time  J
            0    5     3  unit  Ljava/util/concurrent/TimeUnit;
    MethodParameters:
      Name  Flags
      time  
      unit  

  public synchronized void start();
    descriptor: ()V
    flags: (0x0021) ACC_PUBLIC, ACC_SYNCHRONIZED
    Code:
      stack=8, locals=1, args_size=1
        start local 0 // org.terracotta.statistics.archive.StatisticSampler this
         0: .line 67
            aload 0 /* this */
            getfield org.terracotta.statistics.archive.StatisticSampler.currentExecution:Ljava/util/concurrent/ScheduledFuture;
            ifnull 1
            aload 0 /* this */
            getfield org.terracotta.statistics.archive.StatisticSampler.currentExecution:Ljava/util/concurrent/ScheduledFuture;
            invokeinterface java.util.concurrent.ScheduledFuture.isDone:()Z
            ifeq 3
         1: .line 68
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            aload 0 /* this */
            getfield org.terracotta.statistics.archive.StatisticSampler.executor:Ljava/util/concurrent/ScheduledExecutorService;
            aload 0 /* this */
            getfield org.terracotta.statistics.archive.StatisticSampler.task:Lorg/terracotta/statistics/archive/StatisticSampler$SamplingTask;
            aload 0 /* this */
            getfield org.terracotta.statistics.archive.StatisticSampler.period:J
            aload 0 /* this */
            getfield org.terracotta.statistics.archive.StatisticSampler.period:J
            getstatic java.util.concurrent.TimeUnit.NANOSECONDS:Ljava/util/concurrent/TimeUnit;
            invokeinterface java.util.concurrent.ScheduledExecutorService.scheduleAtFixedRate:(Ljava/lang/Runnable;JJLjava/util/concurrent/TimeUnit;)Ljava/util/concurrent/ScheduledFuture;
            putfield org.terracotta.statistics.archive.StatisticSampler.currentExecution:Ljava/util/concurrent/ScheduledFuture;
         2: .line 69
            goto 4
         3: .line 70
      StackMap locals:
      StackMap stack:
            new java.lang.IllegalStateException
            dup
            ldc "Sampler is already running"
            invokespecial java.lang.IllegalStateException.<init>:(Ljava/lang/String;)V
            athrow
         4: .line 72
      StackMap locals:
      StackMap stack:
            return
        end local 0 // org.terracotta.statistics.archive.StatisticSampler this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lorg/terracotta/statistics/archive/StatisticSampler<TT;>;

  public synchronized void stop();
    descriptor: ()V
    flags: (0x0021) ACC_PUBLIC, ACC_SYNCHRONIZED
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.terracotta.statistics.archive.StatisticSampler this
         0: .line 75
            aload 0 /* this */
            getfield org.terracotta.statistics.archive.StatisticSampler.currentExecution:Ljava/util/concurrent/ScheduledFuture;
            ifnull 1
            aload 0 /* this */
            getfield org.terracotta.statistics.archive.StatisticSampler.currentExecution:Ljava/util/concurrent/ScheduledFuture;
            invokeinterface java.util.concurrent.ScheduledFuture.isDone:()Z
            ifeq 2
         1: .line 76
      StackMap locals:
      StackMap stack:
            new java.lang.IllegalStateException
            dup
            ldc "Sampler is not running"
            invokespecial java.lang.IllegalStateException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 78
      StackMap locals:
      StackMap stack:
            aload 0 /* this */
            getfield org.terracotta.statistics.archive.StatisticSampler.currentExecution:Ljava/util/concurrent/ScheduledFuture;
            iconst_0
            invokeinterface java.util.concurrent.ScheduledFuture.cancel:(Z)Z
            pop
         3: .line 80
            return
        end local 0 // org.terracotta.statistics.archive.StatisticSampler this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    4     0  this  Lorg/terracotta/statistics/archive/StatisticSampler<TT;>;

  public synchronized void shutdown();
    descriptor: ()V
    flags: (0x0021) ACC_PUBLIC, ACC_SYNCHRONIZED
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // org.terracotta.statistics.archive.StatisticSampler this
         0: .line 83
            aload 0 /* this */
            getfield org.terracotta.statistics.archive.StatisticSampler.exclusiveExecutor:Z
            ifeq 4
         1: .line 84
            aload 0 /* this */
            getfield org.terracotta.statistics.archive.StatisticSampler.executor:Ljava/util/concurrent/ScheduledExecutorService;
            invokeinterface java.util.concurrent.ScheduledExecutorService.shutdown:()V
         2: .line 85
            aload 0 /* this */
            getfield org.terracotta.statistics.archive.StatisticSampler.executor:Ljava/util/concurrent/ScheduledExecutorService;
            ldc 10
            getstatic java.util.concurrent.TimeUnit.SECONDS:Ljava/util/concurrent/TimeUnit;
            invokeinterface java.util.concurrent.ScheduledExecutorService.awaitTermination:(JLjava/util/concurrent/TimeUnit;)Z
            ifne 5
         3: .line 86
            new java.lang.IllegalStateException
            dup
            ldc "Exclusive ScheduledExecutorService failed to terminate promptly"
            invokespecial java.lang.IllegalStateException.<init>:(Ljava/lang/String;)V
            athrow
         4: .line 89
      StackMap locals:
      StackMap stack:
            new java.lang.IllegalStateException
            dup
            ldc "ScheduledExecutorService was supplied externally - it must be shutdown directly"
            invokespecial java.lang.IllegalStateException.<init>:(Ljava/lang/String;)V
            athrow
         5: .line 91
      StackMap locals:
      StackMap stack:
            return
        end local 0 // org.terracotta.statistics.archive.StatisticSampler this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    6     0  this  Lorg/terracotta/statistics/archive/StatisticSampler<TT;>;
    Exceptions:
      throws java.lang.InterruptedException
}
Signature: <T::Ljava/io/Serializable;>Ljava/lang/Object;
SourceFile: "StatisticSampler.java"
NestMembers:
  org.terracotta.statistics.archive.StatisticSampler$SamplerThreadFactory  org.terracotta.statistics.archive.StatisticSampler$SamplingTask
InnerClasses:
  SamplerThreadFactory = org.terracotta.statistics.archive.StatisticSampler$SamplerThreadFactory of org.terracotta.statistics.archive.StatisticSampler
  SamplingTask = org.terracotta.statistics.archive.StatisticSampler$SamplingTask of org.terracotta.statistics.archive.StatisticSampler
/

org.terracotta/ statistics/ 2.1/ org/terracotta/statistics/archive/StatisticSampler.class
