rice.environment
Class Environment

java.lang.Object
  rice.environment.Environment

All Implemented Interfaces:

Destructable

public class Environment
extends java.lang.Object
implements Destructable

Used to provide properties, timesource, loggers etc to the FreePastry apps and components. XXX: Plan is to place the environment inside a PastryNode.

Author:

Jeff Hoye

Field Summary

static java.lang.String[]

defaultParamFileArray

Constructor Summary

Environment()
Convienience for defaults.

Environment(SelectorManager sm, Processor proc, RandomSource rs, TimeSource time, LogManager lm, Parameters params, ExceptionStrategy strategy)
Constructor.

Environment(java.lang.String paramFileName)

Environment(java.lang.String[] orderedDefaultFiles, java.lang.String paramFileName)
Convienience for defaults.

Method Summary

void	addDestructable(Destructable destructable)
protected void	chooseDefaults() Can be easily overridden by a subclass.
void	destroy() Tears down the environment.
static Environment	directEnvironment()
static Environment	directEnvironment(int randomSeed)
static Environment	directEnvironment(RandomSource rs)
static ExceptionStrategy	generateDefaultExceptionStrategy()
static LogManager	generateDefaultLogManager(TimeSource time, Parameters params)
static Processor	generateDefaultProcessor()
static RandomSource	generateDefaultRandomSource(Parameters params, LogManager logging)
static SelectorManager	generateDefaultSelectorManager(TimeSource time, LogManager logging)
static TimeSource	generateDefaultTimeSource()
ExceptionStrategy	getExceptionStrategy()
LogManager	getLogManager()
Parameters	getParameters()
Processor	getProcessor()
RandomSource	getRandomSource()
SelectorManager	getSelectorManager()
TimeSource	getTimeSource()
void	removeDestructable(Destructable destructable)
ExceptionStrategy	setExceptionStrategy(ExceptionStrategy newStrategy)

Methods inherited from class java.lang.Object

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

Field Detail

defaultParamFileArray

public static final java.lang.String[] defaultParamFileArray

Constructor Detail

Environment

public Environment(SelectorManager sm,
                   Processor proc,
                   RandomSource rs,
                   TimeSource time,
                   LogManager lm,
                   Parameters params,
                   ExceptionStrategy strategy)

Constructor. You can provide null values for all/any paramenters, which will result in a default choice. If you want different defaults, consider extending Environment and providing your own chooseDefaults() method.

Parameters:

sm - the SelectorManager. Default: rice.selector.SelectorManager

rs - the RandomSource. Default: rice.environment.random.simple.SimpleRandomSource

time - the TimeSource. Default: rice.environment.time.simple.SimpleTimeSource

lm - the LogManager. Default: rice.environment.logging.simple.SimpleLogManager

props - the Properties. Default: empty properties

Environment

public Environment(java.lang.String[] orderedDefaultFiles,
                   java.lang.String paramFileName)

Convienience for defaults.

Parameters:

paramFileName - the file where parameters are saved

Throws:

java.io.IOException

Environment

public Environment(java.lang.String paramFileName)

Environment

public Environment()

Convienience for defaults. Has no parameter file to load/store.

Method Detail

directEnvironment

public static Environment directEnvironment(int randomSeed)

directEnvironment

public static Environment directEnvironment()

directEnvironment

public static Environment directEnvironment(RandomSource rs)

chooseDefaults

protected void chooseDefaults()

Can be easily overridden by a subclass.

generateDefaultExceptionStrategy

public static ExceptionStrategy generateDefaultExceptionStrategy()

generateDefaultRandomSource

public static RandomSource generateDefaultRandomSource(Parameters params,
                                                       LogManager logging)

generateDefaultTimeSource

public static TimeSource generateDefaultTimeSource()

generateDefaultLogManager

public static LogManager generateDefaultLogManager(TimeSource time,
                                                   Parameters params)

generateDefaultSelectorManager

public static SelectorManager generateDefaultSelectorManager(TimeSource time,
                                                             LogManager logging)

generateDefaultProcessor

public static Processor generateDefaultProcessor()

getSelectorManager

public SelectorManager getSelectorManager()

getProcessor

public Processor getProcessor()

getRandomSource

public RandomSource getRandomSource()

getTimeSource

public TimeSource getTimeSource()

getLogManager

public LogManager getLogManager()

getParameters

public Parameters getParameters()

destroy

public void destroy()

Tears down the environment. Calls params.store(), selectorManager.destroy().

Specified by:

destroy in interface Destructable

addDestructable

public void addDestructable(Destructable destructable)

removeDestructable

public void removeDestructable(Destructable destructable)

getExceptionStrategy

public ExceptionStrategy getExceptionStrategy()

setExceptionStrategy

public ExceptionStrategy setExceptionStrategy(ExceptionStrategy newStrategy)