- AWS Code Sample demonstrates how to get the bucket policy from an existing S3 bucket.

/* Copyright 2010-2019, Inc. or its affiliates. All Rights Reserved. This file is licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance with the License. A copy of the License is located at This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ package aws.example.s3; import com.amazonaws.AmazonServiceException; import com.amazonaws.regions.Regions; import; import; import; /** * Get the bucket policy from an existing S3 bucket. * * This code expects that you have AWS credentials set up per: * */ public class GetBucketPolicy { public static void main(String[] args) { final String USAGE = "\n" + "Usage:\n" + " GetBucketPolicy <bucket>\n\n" + "Where:\n" + " bucket - the bucket to get the policy from.\n\n" + "Example:\n" + " GetBucketPolicy testbucket\n\n"; if (args.length < 1) { System.out.println(USAGE); System.exit(1); } String bucket_name = args[0]; String policy_text = null; System.out.format("Getting policy for bucket: \"%s\"\n\n", bucket_name); final AmazonS3 s3 = AmazonS3ClientBuilder.standard().withRegion(Regions.DEFAULT_REGION).build(); try { BucketPolicy bucket_policy = s3.getBucketPolicy(bucket_name); policy_text = bucket_policy.getPolicyText(); } catch (AmazonServiceException e) { System.err.println(e.getErrorMessage()); System.exit(1); } if (policy_text == null) { System.out.println("The specified bucket has no bucket policy."); } else { System.out.println("Returned policy:"); System.out.println("----"); System.out.println(policy_text); System.out.println("----\n"); } System.out.println("Done!"); } }

Sample Details

Service: s3

Author: soo-aws

Type: full-example