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https://issues.apache.org/jira/browse/HADOOP-14837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17846882#comment-17846882
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ASF GitHub Bot commented on HADOOP-14837:
-----------------------------------------
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
> Handle S3A "glacier" data
> -------------------------
>
> Key: HADOOP-14837
> URL: https://issues.apache.org/jira/browse/HADOOP-14837
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 3.0.0-beta1
> Reporter: Steve Loughran
> Assignee: Bhavay Pahuja
> Priority: Minor
> Labels: pull-request-available
>
> SPARK-21797 covers how if you have AWS S3 set to copy some files to glacier,
> they appear in the listing but GETs fail, and so does everything else
> We should think about how best to handle this.
> # report better
> # if listings can identify files which are glaciated then maybe we could have
> an option to filter them out
> # test & see what happens
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