bpahuja commented on code in PR #6407: URL: https://github.com/apache/hadoop/pull/6407#discussion_r1602914173
########## hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/api/S3ObjectStorageClassFilter.java: ########## @@ -0,0 +1,93 @@ +/* + * 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.hadoop.fs.s3a.api; + +import java.util.Set; +import java.util.function.Function; + +import software.amazon.awssdk.services.s3.model.ObjectStorageClass; +import software.amazon.awssdk.services.s3.model.S3Object; + +import org.apache.hadoop.fs.s3a.S3AFileSystem; +import org.apache.hadoop.thirdparty.com.google.common.collect.Sets; + + +/** + * <pre> + * {@link S3ObjectStorageClassFilter} will filter the S3 files based on the + * {@code fs.s3a.glacier.read.restored.objects} configuration set in {@link S3AFileSystem} + * The config can have 3 values: + * {@code READ_ALL}: Retrieval of Glacier files will fail with InvalidObjectStateException: + * The operation is not valid for the object's storage class. + * {@code SKIP_ALL_GLACIER}: If this value is set then this will ignore any S3 Objects which are + * tagged with Glacier storage classes and retrieve the others. + * {@code READ_RESTORED_GLACIER_OBJECTS}: If this value is set then restored status of the Glacier + * object will be checked, if restored the objects would be read like normal S3 objects + * else they will be ignored as the objects would not have been retrieved from the S3 Glacier. + * </pre> + */ +public enum S3ObjectStorageClassFilter { + READ_ALL(o -> true), + SKIP_ALL_GLACIER(S3ObjectStorageClassFilter::isNotGlacierObject), + READ_RESTORED_GLACIER_OBJECTS(S3ObjectStorageClassFilter::isCompletedRestoredObject); + + private static final Set<ObjectStorageClass> GLACIER_STORAGE_CLASSES = Sets.newHashSet( + ObjectStorageClass.GLACIER, ObjectStorageClass.DEEP_ARCHIVE); + + private final Function<S3Object, Boolean> filter; + + S3ObjectStorageClassFilter(Function<S3Object, Boolean> filter) { Review Comment: Implicit should be okay -- 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: common-issues-unsubscr...@hadoop.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org
