How to run multiple instances of the same Esper-based strategy

To run multiple instances of the same strategy using different parameters and/or settings, you can modify your applicationContext-client-xx.xml file in src/main/resources/META-INF folder as below:

By default, strategyName is bind with the specific name provided during creation of the strategy project and it needs to be parameterized with a proper placeholder, for example, ${strategyName}. This change allows providing strategy name in VM arguments of run configuration for every running strategy instance.  A detailed example can be found in the Random example strategy that we provide.

    <bean id="strategyXEngine" class="ch.algotrader.esper.EngineFactoryBean">
        <property name="strategyName" value="${strategyName}"/>
        <property name="configResource" value="esper-strategyX.cfg.xml"/>
        <property name="configParams" ref="strategyXConfigParams"/>
        <property name="initModules" value="strategyX-init"/>
        <property name="runModules" value="strategyX-run"/>
    </bean>

    <bean id="strategyXService" class="ch.algotrader.strategy.StrategyXService" autowire="byName">
        <property name="strategyName" value="${strategyName}"/>
        <property name="engine" ref="strategyXEngine"/>
    </bean>

    <bean id="strategyQueue" class="org.apache.activemq.command.ActiveMQQueue">
        <constructor-arg value="${strategyName}.QUEUE" />
    </bean>

</beans>