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# 删除项目策略 (SDK)
您可以使用该[DeleteProjectPolicy](https://docs.aws.amazon.com/rekognition/latest/APIReference/API_DeleteProjectPolicy)操作从 Amazon Rekognition 自定义标签项目中删除现有项目政策的修订版。如果要删除附加到项目的项目策略的所有修订版，请使用获取附加[ListProjectPolicies](https://docs.aws.amazon.com/rekognition/latest/APIReference/API_ListProjectPolicies)到该项目的每个项目策略 IDs 的修订版本。然后，为每个策略名称调用 `DeletePolicy`。
**删除项目策略的修订版 (SDK)**
1. 如果您尚未这样做，请安装并配置 AWS CLI 和 AWS SDKs。有关更多信息，请参阅 [步骤 4：设置 AWS CLI 和 AWS SDKs](su-awscli-sdk.md)。
1. 使用以下代码删除项目策略。
DeletePolicy 需要`ProjectARN`，`PolicyName`和`PolicyRevisionId`。 `ProjectARN`并且`PolicyName`是此 API 所必需的。 `PolicyRevisionId`是可选的，但可以包含在原子更新中。
------
#### [ AWS CLI ]
更改以下值：
+ 将 `policy-name` 更改为要删除的项目策略的名称。
+ 将 `policy-revision-id` 更改为要删除的项目策略修订版 ID。
+ 将 `project-arn` 更改为包含要删除的项目策略修订版的项目的 Amazon 资源名称。
```
aws rekognition delete-project-policy \
--policy-name policy-name \
--policy-revision-id policy-revision-id \
--project-arn project-arn \
--profile custom-labels-access
```
------
#### [ Python ]
使用以下代码。提供以下命令行参数：
+ `policy-name`：要删除的项目策略的名称。
+ `project-arn`：包含要删除的项目策略的项目的 Amazon 资源名称。
+ `policy-revision-id`：要删除的项目策略的修订版 ID。
例如：`python delete_project_policy.py policy_name project_arn`*policy\$1revision\$1id*
```
# Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
# SPDX-License-Identifier: Apache-2.0
"""
Purpose
Amazon Rekognition Custom Labels model example used in the service documentation:
https://docs.aws.amazon.com/rekognition/latest/customlabels-dg/md-copy-model-sdk.html
Shows how to delete a revision of a project policy.
"""
import argparse
import logging
import boto3
from botocore.exceptions import ClientError
logger = logging.getLogger(__name__)
def delete_project_policy(rekognition_client, policy_name, project_arn, policy_revision_id=None):
"""
Deletes a project policy.
:param rekognition_client: A Boto3 Amazon Rekognition client.
:param policy_name: The name of the project policy that you want to delete.
:param policy_revision_id: The revsion ID for the project policy that you want to delete.
:param project_arn: The Amazon Resource Name of the project that contains the project policy
that you want to delete.
"""
try:
logger.info("Deleting project policy: %s", policy_name)
if policy_revision_id is None:
rekognition_client.delete_project_policy(
PolicyName=policy_name,
ProjectArn=project_arn)
else:
rekognition_client.delete_project_policy(
PolicyName=policy_name,
PolicyRevisionId=policy_revision_id,
ProjectArn=project_arn)
logger.info("Deleted project policy: %s", policy_name)
except ClientError:
logger.exception("Couldn't delete project policy.")
raise
def confirm_project_policy_deletion(policy_name):
"""
Confirms deletion of the project policy. Returns True if delete entered.
:param model_arn: The ARN of the model that you want to delete.
"""
print(
f"Are you sure you wany to delete project policy {policy_name} ?\n", policy_name)
delete = input("Enter delete to delete your project policy: ")
if delete == "delete":
return True
else:
return False
def add_arguments(parser):
"""
Adds command line arguments to the parser.
:param parser: The command line parser.
"""
parser.add_argument(
"policy_name", help="The ARN of the project that contains the project policy that you want to delete."
)
parser.add_argument(
"project_arn", help="The ARN of the project project policy you want to delete."
)
parser.add_argument(
"--policy_revision_id", help="(Optional) The revision ID of the project policy that you want to delete.",
required=False
)
def main():
logging.basicConfig(level=logging.INFO,
format="%(levelname)s: %(message)s")
try:
# Get command line arguments.
parser = argparse.ArgumentParser(usage=argparse.SUPPRESS)
add_arguments(parser)
args = parser.parse_args()
if confirm_project_policy_deletion(args.policy_name) is True:
print(f"Deleting project_policy: {args.policy_name}")
session = boto3.Session(profile_name='custom-labels-access')
rekognition_client = session.client("rekognition")
# Delete the project policy.
delete_project_policy(rekognition_client,
args.policy_name,
args.project_arn,
args.policy_revision_id)
print(f"Finished deleting project policy: {args.policy_name}")
else:
print(f"Not deleting project policy {args.policy_name}")
except ClientError as err:
print(f"Couldn't delete project policy in {args.policy_name}: {err}")
if __name__ == "__main__":
main()
```
------
#### [ Java V2 ]
使用以下代码。提供以下命令行参数：
+ `policy-name`：要删除的项目策略的名称。
+ `project-arn`：包含要删除的项目策略的项目的 Amazon 资源名称。
+ `policy-revision-id`：要删除的项目策略的修订版 ID。
```
/*
Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package com.example.rekognition;
import java.util.logging.Level;
import java.util.logging.Logger;
import software.amazon.awssdk.auth.credentials.ProfileCredentialsProvider;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.rekognition.RekognitionClient;
import software.amazon.awssdk.services.rekognition.model.DeleteProjectPolicyRequest;
import software.amazon.awssdk.services.rekognition.model.RekognitionException;
public class DeleteProjectPolicy {
public static final Logger logger = Logger.getLogger(DeleteProjectPolicy.class.getName());
public static void deleteMyProjectPolicy(RekognitionClient rekClient, String projectArn,
String projectPolicyName,
String projectPolicyRevisionId)
throws InterruptedException {
try {
String[] logArguments = new String[] { projectPolicyName, projectPolicyRevisionId };
logger.log(Level.INFO, "Deleting: Project policy: {0} revision: {1}", logArguments);
// Delete the project policy.
DeleteProjectPolicyRequest deleteProjectPolicyRequest = DeleteProjectPolicyRequest.builder()
.policyName(projectPolicyName)
.policyRevisionId(projectPolicyRevisionId)
.projectArn(projectArn).build();
rekClient.deleteProjectPolicy(deleteProjectPolicyRequest);
logger.log(Level.INFO, "Deleted: Project policy: {0} revision: {1}", logArguments);
} catch (
RekognitionException e) {
logger.log(Level.SEVERE, "Client error occurred: {0}", e.getMessage());
throw e;
}
}
public static void main(String args[]) {
final String USAGE = "\n" + "Usage: " + " \n\n"
+ "Where:\n"
+ " project_arn - The ARN of the project that has the project policy that you want to delete.\n\n"
+ " project_policy_name - The name of the project policy that you want to delete.\n\n"
+ " project_policy_revision_id - The revision of the project policy that you want to delete.\n\n";
if (args.length != 3) {
System.out.println(USAGE);
System.exit(1);
}
String projectArn = args[0];
String projectPolicyName = args[1];
String projectPolicyRevisionId = args[2];
try {
RekognitionClient rekClient = RekognitionClient.builder()
.credentialsProvider(ProfileCredentialsProvider.create("custom-labels-access"))
.region(Region.US_WEST_2)
.build();
// Delete the project policy.
deleteMyProjectPolicy(rekClient, projectArn, projectPolicyName, projectPolicyRevisionId);
System.out.println(String.format("project policy deleted: %s revision: %s", projectPolicyName,
projectPolicyRevisionId));
rekClient.close();
} catch (RekognitionException rekError) {
logger.log(Level.SEVERE, "Rekognition client error: {0}", rekError.getMessage());
System.exit(1);
}
catch (InterruptedException intError) {
logger.log(Level.SEVERE, "Exception while sleeping: {0}", intError.getMessage());
System.exit(1);
}
}
}
```
------