import com.amazonaws.services.s3.model.SetBucketPolicyRequest; //导入依赖的package包/类
public void createS3BucketIfNotExist(String bucketName, String regionName, boolean isOutputBucket) throws TranscodeException{
    s3client.setRegion(Region.getRegion(Regions.fromName(regionName)));
    try {
        if(!(s3client.doesBucketExist(bucketName)))
        {
        	// Note that CreateBucketRequest does not specify region. So bucket is 
        	// created in the region specified in the client.
        	s3client.createBucket(new CreateBucketRequest(
        			bucketName));
        }
        
        if (isOutputBucket){
        	String policyText = "{"
        			  + "\"Id\": \"1\","
        			  + "\"Version\": \"2012-10-17\","
        			  + "\"Statement\": ["
        			  + "  {"
        			  + "    \"Sid\": \"1\","
        			  + "    \"Action\": ["
        			  + "    \"s3:GetObject\""
        			  + "    ],"
        			  + "  \"Effect\": \"Allow\","
        			  + "  \"Resource\": \"arn:aws:s3:::"+bucketName+"/*\","
        			  + "  \"Principal\": \"*\""
        			  + "  }"
        			  + "]"
        			  + "}";
        	SetBucketPolicyRequest setBucketPolicyRequest = new SetBucketPolicyRequest(bucketName, policyText);
        	s3client.setBucketPolicy(setBucketPolicyRequest);
        }	        
     } catch (AmazonServiceException ase) {
        logger.error("Caught an AmazonServiceException, which " +
        		"means your request made it " +
                "to Amazon S3, but was rejected with an error response" +
                " for some reason.", ase);
        throw new TranscodeException(ase.getMessage());
    } catch (AmazonClientException ace) {
        logger.error("Caught an AmazonClientException, which " +
        		"means the client encountered " +
                "an internal error while trying to " +
                "communicate with S3, " +
                "such as not being able to access the network.", ace);
        throw new TranscodeException(ace.getMessage());
    } catch (IllegalArgumentException ie) {
        logger.error("Couldn't get the region", ie);
    	throw new TranscodeException(ie.getMessage());
    }
}
 

import com.amazonaws.services.s3.model.SetBucketPolicyRequest; //导入依赖的package包/类
private void configureAccessLog(LoadBalancerAttributes attributes, Regions region) {
    ELBAccessLogBucketPolicyBuilder builder = new ELBAccessLogBucketPolicyBuilder();
    String bucketName = resource.accessLogBucket.remoteBucket.getName();
    AWS.s3.s3.setBucketPolicy(new SetBucketPolicyRequest(bucketName, builder.policyText(region, bucketName)));

    attributes.withAccessLog(new AccessLog()
        .withEnabled(true)
        .withS3BucketName(bucketName)
        .withS3BucketPrefix("elb/" + resource.id));
}
 

import com.amazonaws.services.s3.model.SetBucketPolicyRequest; //导入依赖的package包/类
@Override
public void setBucketPolicy(SetBucketPolicyRequest setBucketPolicyRequest) throws AmazonClientException, AmazonServiceException {
    delegate.setBucketPolicy(setBucketPolicyRequest);
}
 

import com.amazonaws.services.s3.model.SetBucketPolicyRequest; //导入依赖的package包/类
@Override
public void setBucketPolicy(SetBucketPolicyRequest setBucketPolicyRequest) throws SdkClientException, AmazonServiceException {
  run(() -> getDelegate().setBucketPolicy(setBucketPolicyRequest));
}
 

import com.amazonaws.services.s3.model.SetBucketPolicyRequest; //导入依赖的package包/类
@Override
public void setBucketPolicy(SetBucketPolicyRequest setBucketPolicyRequest)
        throws AmazonClientException
{
}
 

import com.amazonaws.services.s3.model.SetBucketPolicyRequest; //导入依赖的package包/类
@Override
public void setBucketPolicy(SetBucketPolicyRequest setBucketPolicyRequest) throws AmazonClientException,
    AmazonServiceException {
  // TODO Auto-generated method stub

}