#set( $symbol_pound = '#' )
#set( $symbol_dollar = '$' )
#set( $symbol_escape = '\' )
package ${package}.di;
import static org.apache.commons.lang.StringUtils.isNotBlank;
import com.amazonaws.AmazonClientException;
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.AWSCredentialsProvider;
import com.amazonaws.auth.AWSCredentialsProviderChain;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.auth.ClasspathPropertiesFileCredentialsProvider;
import com.amazonaws.auth.EnvironmentVariableCredentialsProvider;
import com.amazonaws.auth.InstanceProfileCredentialsProvider;
import com.amazonaws.auth.SystemPropertiesCredentialsProvider;
/**
* <p>
* Elastic Beanstalk Propagates the AWS Credentials in a Way that is not
* supported by the AWS SDK
* </p>
*
* <p>
* We also love having aws.properties for local usage.
* </p>
*
* <p>
* So here's a midterm: Combining AWS Credentials Provider Chain with whatever
* elastic beanstalk needs
* </p>
*
*/
public class BeanstalkerCredentialsProviderChain extends
AWSCredentialsProviderChain {
static class ElasticBeanstalkCredentialsProvider implements
AWSCredentialsProvider {
@Override
public AWSCredentials getCredentials() {
String awsAccessKeyId = System.getProperty("AWS_ACCESS_KEY_ID");
String awsSecretKey = System.getProperty("AWS_SECRET_KEY");
if (isNotBlank(awsAccessKeyId) && isNotBlank(awsSecretKey))
return new BasicAWSCredentials(awsAccessKeyId, awsSecretKey);
throw new AmazonClientException(
"Unable to load AWS credentials from Java system properties (AWS_ACCESS_KEY_ID and AWS_SECRET_KEY)");
}
@Override
public void refresh() {
}
}
public BeanstalkerCredentialsProviderChain() {
super(new ElasticBeanstalkCredentialsProvider(),
new EnvironmentVariableCredentialsProvider(),
new SystemPropertiesCredentialsProvider(),
new ClasspathPropertiesFileCredentialsProvider(
"/aws.properties"),
new InstanceProfileCredentialsProvider());
}
}