Spring S3 Properties Loader

The aim of this library is to provide a simple mechanism to load configuration properties from a properties file stored in AWS S3.

How to use it

1. Add dependency into pom.xml.

<dependency>
    <groupId>cloud.cirrusup</groupId>
    <artifactId>spring-s3-properties-loader</artifactId>
    <version>1.0</version>
</dependency>

2. In your Spring XML files, simply define a PropertySourcesPlaceholderConfigurer, as it follows:

<bean id="s3PropertyPlaceholder" class="cloud.cirrusup.S3PropertySourcesPlaceholderConfigurer">
        <constructor-arg name="amazonS3" ref="amazonS3"/>
        <constructor-arg name="bucket" value="your-bucket"/>
        <constructor-arg name="fileName" value="path/to/file.properties"/>
</bean>

In order to get the maximum flexibility, you can set values for bucket and filename using Java system properties.

<bean id="s3PropertyPlaceholder" class="cloud.cirrusup.S3PropertySourcesPlaceholderConfigurer">
        <constructor-arg name="amazonS3" ref="amazonS3"/>
        <constructor-arg name="bucket" value="#{systemProperties['s3.config.bucket']}"/>
        <constructor-arg name="fileName" value="#{systemProperties['s3.config.filename']}"/>
</bean>