Package org.marketcetera.strategy

Class StrategyServiceImpl.RunningStrategy

java.lang.Object

org.marketcetera.strategy.StrategyServiceImpl.RunningStrategy

Enclosing class:

StrategyServiceImpl

private class StrategyServiceImpl.RunningStrategy
extends Object

Tracks a running strategy instance.

Since:

$Release$

Version:

$Id$

Author:

Colin DuPlantis

Field Summary

Fields

Modifier and Type	Field	Description
private File	jarFile	JAR file that contains the strategy to run
private URLClassLoader	newClassloader	class loader used for the strategy
private org.springframework.context.annotation.AnnotationConfigApplicationContext	newContext	new application context used for the strategy
private StrategyInstance	strategyInstance	strategy instance associated with the running strategy

Constructor Summary

Constructors

Modifier	Constructor	Description
private	RunningStrategy(StrategyInstance inStrategyInstance, File inStrategyJar)	Create a new RunningStrategy instance.

Method Summary

Modifier and Type	Method	Description
private String	getMainClassName(File inJarFile)	Determines the main class name from the given JAR.
private void	start()	Start the strategy.
private void	stop()	Stop the running strategy.

Methods inherited from class java.lang.Object

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

Field Detail

jarFile

private final File jarFile

JAR file that contains the strategy to run

strategyInstance

private final StrategyInstance strategyInstance

strategy instance associated with the running strategy

newClassloader

private URLClassLoader newClassloader

class loader used for the strategy

newContext

private org.springframework.context.annotation.AnnotationConfigApplicationContext newContext

new application context used for the strategy

Constructor Detail

RunningStrategy

private RunningStrategy(StrategyInstance inStrategyInstance,
                        File inStrategyJar)

Create a new RunningStrategy instance.

Parameters:

inStrategyInstance - a StrategyInstance value

inStrategyJar - a File value

Method Detail

start

private void start()
            throws Throwable

Start the strategy.

Throws:

Throwable - if an error occurs loading or starting the strategy.

stop

private void stop()

Stop the running strategy.

getMainClassName

private String getMainClassName(File inJarFile)
                         throws FileNotFoundException,
                                IOException

Determines the main class name from the given JAR.

The current implementation optimistically assumes the given File is a JAR and contains a Main-Class attribute.

Parameters:

inJarFile - a File value

Returns:

a String value or null if the appropriate attribute cannot be extracted from the given file

Throws:

FileNotFoundException - if the file does not exist

IOException - if the file could otherwise not be read