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  /*
   * Copyright 2010-2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
   *
   * 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
   * 
   *  http://aws.amazon.com/apache2.0
   * 
  * or in the "license" file accompanying this file. 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 com.amazonaws.services.s3.model;

Specifies constants defining an access permission, as granted to grantees in an AccessControlList. Only a limited set of permission are available; each one is represented as a value in this enumeration.
 
 public enum Permission {

    
Provides READ, WRITE, READ_ACP, and WRITE_ACP permissions.

It does not convey additional rights and is provided only for convenience.

 
     FullControl("FULL_CONTROL""x-amz-grant-full-control"),

    
Grants permission to list the bucket when applied to a bucket. Grants permission to read object data and/or metadata when applied to an object.
 
     Read("READ""x-amz-grant-read"),

    
Grants permission to create, overwrite, and delete any objects in the bucket.

This permission is not supported for objects.

 
     Write("WRITE""x-amz-grant-write"),

    
Grants permission to read the ACL for the applicable bucket or object.

The owner of a bucket or object always implicitly has this permission.

 
     ReadAcp("READ_ACP""x-amz-grant-read-acp"),

    
Gives permission to overwrite the ACP for the applicable bucket or object.

The owner of a bucket or object always has this permission implicitly.

Granting this permission is equivalent to granting FULL_CONTROLbecause the grant recipient can make any changes to the ACP.

 
     WriteAcp("WRITE_ACP""x-amz-grant-write-acp");
     
     private String permissionString;
     private String headerName;
     
     private Permission(String permissionStringString headerName) {
         this. = permissionString;
         this. = headerName;
     }

    
Returns the name of the header used to grant this permission.
 
     public String getHeaderName() {
         return ;
     }

    
Gets the string representation of this permission object as defined by Amazon S3, eg. FULL_CONTROL.

Returns:
The string representation of this permission object as defined by Amazon S3, eg. FULL_CONTROL.
 
     public String toString() {
         return ;
     }

    
Returns the Permission enumeration value representing the specified Amazon S3 Region ID string. If specified string doesn't map to a known Amazon S3 Region, returns null.

Parameters:
str A string representation of an Amazon S3 permission, eg. FULL_CONTROL
Returns:
The Permission object represented by the given permission string, Returns null if the string isn't a valid representation of an Amazon S3 permission.
    public static Permission parsePermission(String str) {
        for (Permission permission : Permission.values()) {
            if (permission.permissionString.equals(str)) {
                return permission;
            }
        }
     
        return null;
    }
    
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