whua3 commented on code in PR #11713: URL: https://github.com/apache/gravitino/pull/11713#discussion_r3437380173
########## bundles/tencent/src/main/java/org/apache/gravitino/cos/fs/COSCredentialsProvider.java: ########## @@ -0,0 +1,84 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 org.apache.gravitino.cos.fs; + +import com.qcloud.cos.auth.BasicCOSCredentials; +import com.qcloud.cos.auth.COSCredentials; +import java.net.URI; +import org.apache.gravitino.catalog.hadoop.fs.FileSystemUtils; +import org.apache.gravitino.catalog.hadoop.fs.GravitinoFileSystemCredentialsProvider; +import org.apache.gravitino.credential.COSSecretKeyCredential; +import org.apache.gravitino.credential.Credential; +import org.apache.hadoop.conf.Configuration; +import org.apache.hadoop.fs.auth.AbstractCOSCredentialProvider; + +/** + * Hadoop-COS credential provider that pulls vended credentials out of Gravitino and feeds them to + * the underlying {@code com.qcloud.cos.auth.COSCredentialsProvider} contract. PR-A only handles + * static secret-key credentials; STS / token credentials will be added by a follow-up PR. + */ +public class COSCredentialsProvider extends AbstractCOSCredentialProvider { + + private final GravitinoFileSystemCredentialsProvider gravitinoFileSystemCredentialsProvider; + private volatile COSCredentials basicCredentials; + private volatile long expirationTime = Long.MAX_VALUE; + private static final double EXPIRATION_TIME_FACTOR = 0.5D; + + public COSCredentialsProvider(URI uri, Configuration conf) { + super(uri, conf); + this.gravitinoFileSystemCredentialsProvider = FileSystemUtils.getGvfsCredentialProvider(conf); + } + + @Override + public COSCredentials getCredentials() { + if (basicCredentials == null || System.currentTimeMillis() >= expirationTime) { + synchronized (this) { + if (basicCredentials == null || System.currentTimeMillis() >= expirationTime) { + refresh(); + } + } + } + return basicCredentials; + } + + @Override + public void refresh() { + Credential[] gravitinoCredentials = gravitinoFileSystemCredentialsProvider.getCredentials(); + Credential credential = COSUtils.getSuitableCredential(gravitinoCredentials); + if (credential == null) { + throw new RuntimeException("No suitable credential for COS found..."); + } + + if (credential instanceof COSSecretKeyCredential) { Review Comment: ok -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
