HesandaLiyanage commented on code in PR #3193: URL: https://github.com/apache/james-project/pull/3193#discussion_r4101588254
########## server/blob/blob-compaction/src/main/java/org/apache/james/blob/compaction/BlobSlot.java: ########## @@ -0,0 +1,78 @@ +/**************************************************************** + * 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.james.blob.compaction; + +import java.util.Arrays; +import java.util.Objects; +import java.util.zip.CRC32C; + +import org.apache.james.blob.api.BlobStoreDAO.BlobMetadata; +import org.apache.james.blob.api.BlobStoreDAO.BlobMetadataName; +import org.apache.james.blob.api.BlobStoreDAO.BlobMetadataValue; +import org.apache.james.blob.api.BlobStoreDAO.BytesBlob; +import org.apache.james.blob.api.BlobStoreDAO.ContentEncoding; +import org.apache.james.blob.api.ObjectStoreIOException; + +public record BlobSlot(long contentStart, int crc32c, long originalSize, byte[] compressedContent, BlobMetadata metadata) { + public static final BlobMetadataName CONTENT_ORIGINAL_SIZE = new BlobMetadataName("content-original-size"); + + public BlobSlot(long contentStart, int crc32c, long originalSize, byte[] compressedContent) { + this(contentStart, crc32c, originalSize, compressedContent, BlobMetadata.empty()); + } + + public void verifyCrc() throws ObjectStoreIOException { + CRC32C crc = new CRC32C(); + crc.update(compressedContent); + int computedCrc = (int) crc.getValue(); + if (computedCrc != crc32c) { + throw new ObjectStoreIOException(String.format("CRC mismatch for chunk slot at offset %d: expected %d, got %d", + contentStart, crc32c, computedCrc)); + } + } + + public BytesBlob toBlob() { + BlobMetadata enriched = metadata + .withContentEncoding(ContentEncoding.ZSTD) + .withMetadata(CONTENT_ORIGINAL_SIZE, new BlobMetadataValue(String.valueOf(originalSize))); + return BytesBlob.of(compressedContent, enriched); + } + + @Override + public boolean equals(Object o) { + if (this == o) { + return true; + } + if (o instanceof BlobSlot other) { + return contentStart == other.contentStart + && crc32c == other.crc32c + && originalSize == other.originalSize + && Arrays.equals(compressedContent, other.compressedContent) + && Objects.equals(metadata, other.metadata); + } + return false; + } + + @Override + public int hashCode() { + int result = Objects.hash(contentStart, crc32c, originalSize, metadata); + result = 31 * result + Arrays.hashCode(compressedContent); + return result; + } Review Comment: Removed the manual equals and hashCode overrides in cd18394cbf so BlobSlot relies entirely on standard record semantics. -- 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]
