org.apache.cassandra/cassandra-all/3.11.5 : org/apache/cassandra/scheduler/WeightedQueue.class

WeightedQueue

https://cassandra.apache.org: The Apache Cassandra Project develops a highly scalable second-generation distributed database, bringing together Dynamo's fully distributed design and Bigtable's ColumnFamily-based data model.

The Apache Software License, Version 2.0

Andres de la Peña
Avinash Lakshman
Aleksey Yeschenko
Aaron Morton
Ariel Weisberg
Blake Eggleston
Benedict Elliott Smith
Benjamin Lerer
Branimir Lambov
Brandon Williams
Carl Yeksigian
David Brosiusd
Dikang Gu
Eric Evans
Gary Dusbabek
Chris Goffinet
Alex Petrov
Laine Jaakko Olavi
T Jake Luciani
Jason Brown
Jonathan Ellis
Jake Farrell
Jeff Jirsa
Joel Knighton
Josh McKenzie
Johan Oskarsson
Jun Rao
Jay Zhuang
Sankalp Kohli
Marcus Eriksson
Michael Semb Wever
Mikhail Stepura
Michael Shuler
Paulo Motta
Prashant Malik
Robert Stupp
Peter Schuller
Sam Tunnicliffe
Sylvain Lebresne
Stefania Alborghetti
Tyler Hobbs
Vijay Parthasarathy
Pavel Yaskevich
Yuki Morishita
Nate McCall

class org.apache.cassandra.scheduler.WeightedQueue
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.apache.cassandra.scheduler.WeightedQueue
  super_class: java.lang.Object
{
  private final org.apache.cassandra.metrics.LatencyMetrics metric;
    descriptor: Lorg/apache/cassandra/metrics/LatencyMetrics;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  public final java.lang.String key;
    descriptor: Ljava/lang/String;
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL

  public final int weight;
    descriptor: I
    flags: (0x0011) ACC_PUBLIC, ACC_FINAL

  private final java.util.concurrent.SynchronousQueue<org.apache.cassandra.scheduler.WeightedQueue$Entry> queue;
    descriptor: Ljava/util/concurrent/SynchronousQueue;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL
    Signature: Ljava/util/concurrent/SynchronousQueue<Lorg/apache/cassandra/scheduler/WeightedQueue$Entry;>;

  public void <init>(java.lang.String, int);
    descriptor: (Ljava/lang/String;I)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=6, locals=3, args_size=3
        start local 0 // org.apache.cassandra.scheduler.WeightedQueue this
        start local 1 // java.lang.String key
        start local 2 // int weight
         0: .line 33
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 35
            aload 0 /* this */
            aload 1 /* key */
            putfield org.apache.cassandra.scheduler.WeightedQueue.key:Ljava/lang/String;
         2: .line 36
            aload 0 /* this */
            iload 2 /* weight */
            putfield org.apache.cassandra.scheduler.WeightedQueue.weight:I
         3: .line 37
            aload 0 /* this */
            new java.util.concurrent.SynchronousQueue
            dup
            iconst_1
            invokespecial java.util.concurrent.SynchronousQueue.<init>:(Z)V
            putfield org.apache.cassandra.scheduler.WeightedQueue.queue:Ljava/util/concurrent/SynchronousQueue;
         4: .line 38
            aload 0 /* this */
            new org.apache.cassandra.metrics.LatencyMetrics
            dup
            ldc "scheduler"
            ldc "WeightedQueue"
            aload 1 /* key */
            invokespecial org.apache.cassandra.metrics.LatencyMetrics.<init>:(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V
            putfield org.apache.cassandra.scheduler.WeightedQueue.metric:Lorg/apache/cassandra/metrics/LatencyMetrics;
         5: .line 39
            return
        end local 2 // int weight
        end local 1 // java.lang.String key
        end local 0 // org.apache.cassandra.scheduler.WeightedQueue this
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    6     0    this  Lorg/apache/cassandra/scheduler/WeightedQueue;
            0    6     1     key  Ljava/lang/String;
            0    6     2  weight  I
    MethodParameters:
        Name  Flags
      key     
      weight  

  public void put(java.lang.Thread, long);
    descriptor: (Ljava/lang/Thread;J)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=4, args_size=3
        start local 0 // org.apache.cassandra.scheduler.WeightedQueue this
        start local 1 // java.lang.Thread t
        start local 2 // long timeoutMS
         0: .line 43
            aload 0 /* this */
            getfield org.apache.cassandra.scheduler.WeightedQueue.queue:Ljava/util/concurrent/SynchronousQueue;
            new org.apache.cassandra.scheduler.WeightedQueue$Entry
            dup
            aload 1 /* t */
            invokespecial org.apache.cassandra.scheduler.WeightedQueue$Entry.<init>:(Ljava/lang/Thread;)V
            lload 2 /* timeoutMS */
            getstatic java.util.concurrent.TimeUnit.MILLISECONDS:Ljava/util/concurrent/TimeUnit;
            invokevirtual java.util.concurrent.SynchronousQueue.offer:(Ljava/lang/Object;JLjava/util/concurrent/TimeUnit;)Z
            ifne 2
         1: .line 44
            new java.util.concurrent.TimeoutException
            dup
            new java.lang.StringBuilder
            dup
            ldc "Failed to acquire request scheduler slot for '"
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 0 /* this */
            getfield org.apache.cassandra.scheduler.WeightedQueue.key:Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            ldc "'"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            invokespecial java.util.concurrent.TimeoutException.<init>:(Ljava/lang/String;)V
            athrow
         2: .line 45
      StackMap locals:
      StackMap stack:
            return
        end local 2 // long timeoutMS
        end local 1 // java.lang.Thread t
        end local 0 // org.apache.cassandra.scheduler.WeightedQueue this
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    3     0       this  Lorg/apache/cassandra/scheduler/WeightedQueue;
            0    3     1          t  Ljava/lang/Thread;
            0    3     2  timeoutMS  J
    Exceptions:
      throws java.lang.InterruptedException, java.util.concurrent.TimeoutException
    MethodParameters:
           Name  Flags
      t          
      timeoutMS  

  public java.lang.Thread poll();
    descriptor: ()Ljava/lang/Thread;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=5, locals=2, args_size=1
        start local 0 // org.apache.cassandra.scheduler.WeightedQueue this
         0: .line 49
            aload 0 /* this */
            getfield org.apache.cassandra.scheduler.WeightedQueue.queue:Ljava/util/concurrent/SynchronousQueue;
            invokevirtual java.util.concurrent.SynchronousQueue.poll:()Ljava/lang/Object;
            checkcast org.apache.cassandra.scheduler.WeightedQueue$Entry
            astore 1 /* e */
        start local 1 // org.apache.cassandra.scheduler.WeightedQueue$Entry e
         1: .line 50
            aload 1 /* e */
            ifnonnull 3
         2: .line 51
            aconst_null
            areturn
         3: .line 52
      StackMap locals: org.apache.cassandra.scheduler.WeightedQueue$Entry
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.cassandra.scheduler.WeightedQueue.metric:Lorg/apache/cassandra/metrics/LatencyMetrics;
            invokestatic java.lang.System.nanoTime:()J
            aload 1 /* e */
            getfield org.apache.cassandra.scheduler.WeightedQueue$Entry.creationTime:J
            lsub
            invokevirtual org.apache.cassandra.metrics.LatencyMetrics.addNano:(J)V
         4: .line 53
            aload 1 /* e */
            getfield org.apache.cassandra.scheduler.WeightedQueue$Entry.thread:Ljava/lang/Thread;
            areturn
        end local 1 // org.apache.cassandra.scheduler.WeightedQueue$Entry e
        end local 0 // org.apache.cassandra.scheduler.WeightedQueue this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    5     0  this  Lorg/apache/cassandra/scheduler/WeightedQueue;
            1    5     1     e  Lorg/apache/cassandra/scheduler/WeightedQueue$Entry;

  public java.lang.String toString();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // org.apache.cassandra.scheduler.WeightedQueue this
         0: .line 59
            new java.lang.StringBuilder
            dup
            ldc "RoundRobinScheduler.WeightedQueue(key="
            invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
            aload 0 /* this */
            getfield org.apache.cassandra.scheduler.WeightedQueue.key:Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            ldc " weight="
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            aload 0 /* this */
            getfield org.apache.cassandra.scheduler.WeightedQueue.weight:I
            invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
            ldc ")"
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 0 // org.apache.cassandra.scheduler.WeightedQueue this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/cassandra/scheduler/WeightedQueue;
}
SourceFile: "WeightedQueue.java"
NestMembers:
  org.apache.cassandra.scheduler.WeightedQueue$Entry
InnerClasses:
  private final Entry = org.apache.cassandra.scheduler.WeightedQueue$Entry of org.apache.cassandra.scheduler.WeightedQueue

/

org.apache.cassandra/ cassandra-all/ 3.11.5/ org/apache/cassandra/scheduler/WeightedQueue.class