org.apache.jackrabbit.oak.segment.azure.AzureBlobMetadata Maven / Gradle / Ivy
/*
* 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.jackrabbit.oak.segment.azure;
import org.apache.jackrabbit.oak.segment.azure.util.CaseInsensitiveKeysMapAccess;
import org.apache.jackrabbit.oak.segment.remote.RemoteBlobMetadata;
import org.apache.jackrabbit.oak.segment.remote.RemoteSegmentArchiveEntry;
import java.util.Map;
/**
* Provides access to the blob metadata.
*
* In azure blob metadata keys are case-insensitive. A bug in the tool azcopy v10 make each key to start with
* an uppercase letter. To avoid future bugs we should be tolerant in what we read.
*
* Azure Blobs metadata can not store multiple entries with the same key where only the case differs. Therefore it is
* safe to use the same concept in java, see {@link CaseInsensitiveKeysMapAccess}
*/
public final class AzureBlobMetadata extends RemoteBlobMetadata {
public static RemoteSegmentArchiveEntry toIndexEntry(Map metadata, int length) {
Map caseInsensitiveMetadata = CaseInsensitiveKeysMapAccess.convert(metadata);
return RemoteBlobMetadata.toIndexEntry(caseInsensitiveMetadata, length);
}
public static boolean isSegment(Map metadata) {
Map caseInsensitiveMetadata = CaseInsensitiveKeysMapAccess.convert(metadata);
return RemoteBlobMetadata.isSegment(caseInsensitiveMetadata);
}
}