jackye1995 commented on a change in pull request #3376: URL: https://github.com/apache/iceberg/pull/3376#discussion_r742079326
########## File path: dell/src/main/java/org/apache/iceberg/dell/EcsOutputFile.java ########## @@ -0,0 +1,69 @@ +/* + * 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.iceberg.dell; + +import com.emc.object.s3.S3Client; +import org.apache.iceberg.exceptions.AlreadyExistsException; +import org.apache.iceberg.io.InputFile; +import org.apache.iceberg.io.OutputFile; +import org.apache.iceberg.io.PositionOutputStream; + +public class EcsOutputFile implements OutputFile { + + private final S3Client client; + private final String location; + private final EcsURI uri; + + public EcsOutputFile(S3Client client, String location) { + this.client = client; + this.location = location; + this.uri = LocationUtils.checkAndParseLocation(location); + } + + /** + * Check object existence and then create a {@link PositionOutputStream} + * + * @return Output stream of object + */ + @Override + public PositionOutputStream create() { + if (!toInputFile().exists()) { + return createOrOverwrite(); + } else { + throw new AlreadyExistsException("The object is existed, %s", uri); + } + } + + @Override + public PositionOutputStream createOrOverwrite() { + // use built-in 1 KiB byte buffer + return new EcsAppendOutputStream(client, uri, new byte[1_000]); Review comment: why not directly use `ByteBuffer.allocate`? Then you don't need to convert it back to byte buffer in the constructor. Also would it be more beneficial to allocate 1024 vs 1000? -- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
