stella.net

Class PreRecordedMonitor

java.lang.Object

stella.net.AbstractVariableMonitor

stella.net.PreRecordedMonitor

All Implemented Interfaces:

CacheCaster, CacheChangedCaster

Direct Known Subclasses:

PreRecordedFiles

public abstract class PreRecordedMonitor
extends AbstractVariableMonitor

A pre-recorded variable monitor has some way of assigning an array of possible readings to variable names. This could be read in from a database, a file or simply generated with a random number generator. This class does not specify the concrete mechanism to retrieve the value array, it only declares the method getValueArray(java.lang.String).

Author:

wooz

Field Summary

Fields

Modifier and Type	Field and Description
private Map<String,Integer>	index For each variable the current index in the value array.
private Map<String,Object[]>	values For each variable name the array of possible values.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	PreRecordedMonitor() Creates the empty index and values maps.

Method Summary

Modifier and Type	Method and Description
protected abstract Object[]	getValueArray(String name) For a named variable, return a sample array of possible values.
protected Map<String,Object>	refreshVariables(Collection<String> vars) We cycle through the pre-recorded values, restarting atr the beginning if the end of the sequence has been reached.

Methods inherited from class stella.net.AbstractVariableMonitor

addCacheChangedListener, addCacheListener, addMonitoring, getMonitored, getVariable, isRunning, removeCacheChangedListener, removeCacheListener, removeMonitoring, setLock, startMonitoring, stopMonitoring

Methods inherited from class java.lang.Object

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

Field Detail

index

private final Map<String,Integer> index

For each variable the current index in the value array.

values

private final Map<String,Object[]> values

For each variable name the array of possible values.

Constructor Detail

PreRecordedMonitor

protected PreRecordedMonitor()

Creates the empty index and values maps.

Method Detail

refreshVariables

protected Map<String,Object> refreshVariables(Collection<String> vars)

We cycle through the pre-recorded values, restarting atr the beginning if the end of the sequence has been reached. If a new variable name has been encountered, we query the possible values and store them for further reference.

Specified by:

refreshVariables in class AbstractVariableMonitor

Parameters:

vars - Names of all variables that should be refreshed

Returns:

A mapping of variable names to their current values.

getValueArray

protected abstract Object[] getValueArray(String name)

For a named variable, return a sample array of possible values. During monitoring, each refresh process advances the index in the array, restarting if the last element has been reached.

Parameters:

name -

Returns:

An object array of possible values.