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Motorkhana Perfection

September 24, 2011

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One day I'll get back to Motorkhana and hope to be half as good as his guy...

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Switchable Grails DataSource

As part of my day job I needed to write an administration app that could be easily pointed at multiple environments. To achieve this I used a technique I found a while ago based on Spring's AbstractRoutingDataSource. It basically works by using a facade to switch the connection between one to many child data sources. First off SwitchableDataSource.groovy package com.leebutts import org.springframework.jdbc.datasource .lookup.AbstractRoutingDataSource import com.leebutts.Environment import org.springframework.context.ApplicationContextAware import org.springframework.context.ApplicationContext import javax.sql.DataSource import org.springframework.jdbc.datasource.DriverManagerDataSource class SwitchableDataSource extends AbstractRoutingDataSource implements ApplicationContextAware { def applicationContext public void setApplicationContext(ApplicationContext applicationContext) { this.a...

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