ostore.apps.traces
Class MobileUserIterator

java.lang.Object
  |
  +--ostore.apps.traces.TraceIterator
        |
        +--ostore.apps.traces.MobileUserIterator

All Implemented Interfaces:

Iterator

public class MobileUserIterator

extends TraceIterator

A pseudo-TraceIterator that generates an artificial workload. The operations in this workload simulate a client moving from object to object, performing several reads and writes on each. Or, equivalently, one machine that various people use to access their own files before moving on.

Each object belongs to a single working set at each timestep. See rotate_working_set for a description of how clients choose their working set.

Version:

$Id: MobileUserIterator.java,v 1.8 2002/06/16 19:54:34 srhea Exp $

Author:

Dennis Geels

Field Summary

Fields inherited from class ostore.apps.traces.TraceIterator

ALL, APPEND, CLOSE, CREATE, EXPAND, GETATTR, NO_DELAY, NO_OFFTIME, NOP, OPEN, READ, REPLACE, SETATTR, TRUNCATE, WRITE

Constructor Summary

MobileUserIterator(Integer index, String[] args)
Constructs a MobileUserIterator.

Method Summary

boolean	hasNext()
Object	next()
void	remove()

Methods inherited from class ostore.apps.traces.TraceIterator

toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

MobileUserIterator

public MobileUserIterator(Integer index,
                          String[] args)

Constructs a MobileUserIterator.

Parameters:

index - The index of this client.

args - An array containing all other arguments:
args[0]== total number clients (integer)
args[1]== total number objects (integer)
args[2]== length of object, in bytes (integer)
args[3]== duration of trace, in milliseconds (long)
args[4]== milliseconds per timestep (integer)
args[5]== fractions of write ops (double)
args[6]== amount to read or write, in bytes (integer)
args[7]== filename of principal's public key
args[8]== seed for random number generator (long)

Method Detail

remove

public void remove()

hasNext

public boolean hasNext()

next

public Object next()