com.example.server.AwsCredentialsModule

/*
 * This code is placed in the public domain by its author, Tim Peierls.
 */
package com.example.server;
import org.nnsoft.guice.rocoto.configuration.ConfigurationModule;

/**
 * A module that binds AWS credentials whether passed as "com.example.server.xxx"
 * system properties or Elastic Beanstalk system properties. Client code inject
 * these values using @Named, e.g.,
 * <pre>
 * @Inject AwsDependent(@Named(AWS_ACCESS_KEY_ID) String accessKeyId,
 *                      @Named(AWS_SECRET_KEY) String secretKey) { ... }
 * </pre>
 */
public class AwsCredentialsModule extends ConfigurationModule {

    public static final String AWS_ACCESS_KEY_ID        = "aws.access.key.id";
    public static final String AWS_SECRET_KEY           = "aws.secret.key";

    @Override protected void bindConfigurations() {
        bindProperty(AWS_ACCESS_KEY_ID)
            .toValue("${com.example.server.accesskeyid|}${AWS_ACCESS_KEY_ID|}");
        bindProperty(AWS_SECRET_KEY)
            .toValue("${com.example.server.secretaccesskey|}${AWS_SECRET_KEY|}");
    }
}