Does Spring MessageSource Support Multiple Class Path?

Question

I am designing a plugin system for our web based application using Spring framework. Plugins are jars on classpath. So I am able to get sources such as jsp, see below

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Answer 1

As alternative, you could override refreshProperties method from ReloadableResourceBundleMessageSource class like below example:

public class MultipleMessageSource extends ReloadableResourceBundleMessageSource {
  private static final String PROPERTIES_SUFFIX = ".properties";
  private PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();

  @Override
  protected PropertiesHolder refreshProperties(String filename, PropertiesHolder propHolder) {
    Properties properties = new Properties();
    long lastModified = -1;
    try {
      Resource[] resources = resolver.getResources(filename + PROPERTIES_SUFFIX);
      for (Resource resource : resources) {
        String sourcePath = resource.getURI().toString().replace(PROPERTIES_SUFFIX, "");
        PropertiesHolder holder = super.refreshProperties(sourcePath, propHolder);
        properties.putAll(holder.getProperties());
        if (lastModified < resource.lastModified())
          lastModified = resource.lastModified();
      }
    } catch (IOException ignored) { }
    return new PropertiesHolder(properties, lastModified);
  }
}

and use it with spring context configuration like ReloadableResourceBundleMessageSource:

  
    
      
        classpath:/messages/validation
        classpath:/messages/messages
      
    
    
    
  

I think this should do the trick.