/
AccessSecretVersion.java
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/
AccessSecretVersion.java
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/*
* Copyright 2020 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License 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 secretmanager;
// [START secretmanager_access_secret_version]
import com.google.cloud.secretmanager.v1.AccessSecretVersionResponse;
import com.google.cloud.secretmanager.v1.SecretManagerServiceClient;
import com.google.cloud.secretmanager.v1.SecretVersionName;
import java.io.IOException;
import java.util.zip.CRC32C;
import java.util.zip.Checksum;
public class AccessSecretVersion {
public static void accessSecretVersion() throws IOException {
// TODO(developer): Replace these variables before running the sample.
String projectId = "your-project-id";
String secretId = "your-secret-id";
String versionId = "your-version-id";
accessSecretVersion(projectId, secretId, versionId);
}
// Access the payload for the given secret version if one exists. The version
// can be a version number as a string (e.g. "5") or an alias (e.g. "latest").
public static void accessSecretVersion(String projectId, String secretId, String versionId)
throws IOException {
// Initialize client that will be used to send requests. This client only needs to be created
// once, and can be reused for multiple requests. After completing all of your requests, call
// the "close" method on the client to safely clean up any remaining background resources.
try (SecretManagerServiceClient client = SecretManagerServiceClient.create()) {
SecretVersionName secretVersionName = SecretVersionName.of(projectId, secretId, versionId);
// Access the secret version.
AccessSecretVersionResponse response = client.accessSecretVersion(secretVersionName);
// Verify checksum. The used library is available in Java 9+.
// If using Java 8, you may use the following:
// https://github.com/google/guava/blob/e62d6a0456420d295089a9c319b7593a3eae4a83/guava/src/com/google/common/hash/Hashing.java#L395
byte[] data = response.getPayload().getData().toByteArray();
Checksum checksum = new CRC32C();
checksum.update(data, 0, data.length);
if (response.getPayload().getDataCrc32C() != checksum.getValue()) {
System.out.printf("Data corruption detected.");
return;
}
// Print the secret payload.
//
// WARNING: Do not print the secret in a production environment - this
// snippet is showing how to access the secret material.
String payload = response.getPayload().getData().toStringUtf8();
System.out.printf("Plaintext: %s\n", payload);
}
}
}
// [END secretmanager_access_secret_version]