szetszwo commented on code in PR #4424:
URL: https://github.com/apache/ozone/pull/4424#discussion_r1144194672
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hadoop-hdds/framework/src/main/java/org/apache/hadoop/hdds/utils/db/RDBBatchOperation.java:
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@@ -21,15 +21,193 @@
import org.apache.hadoop.hdds.utils.db.RocksDatabase.ColumnFamily;
import org.apache.hadoop.hdds.utils.db.managed.ManagedWriteBatch;
import org.apache.hadoop.hdds.utils.db.managed.ManagedWriteOptions;
+import org.apache.ratis.util.StringUtils;
+import org.apache.ratis.util.TraditionalBinaryPrefix;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
import java.io.IOException;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.function.Supplier;
/**
* Batch operation implementation for rocks db.
*/
public class RDBBatchOperation implements BatchOperation {
+ static final Logger LOG = LoggerFactory.getLogger(RDBBatchOperation.class);
+ static void debug(Supplier<String> message) {
+ if (LOG.isDebugEnabled()) {
+ LOG.debug("\n{}", message.get());
+ }
+ }
+
+ static String byteSize2String(int length) {
+ return TraditionalBinaryPrefix.long2String(length, "B", 3);
+ }
+
+ static String countSize2String(int count, int size) {
+ return count + " (" + byteSize2String(size) + ")";
+ }
+
+ /**
+ * To implement {@link #equals(Object)} and {@link #hashCode()}
+ * based on the contents of {@link #bytes}.
+ * <p>
+ * Note that it is incorrect to use {@link #bytes#equals(Object)}
+ * and {@link #bytes#hashCode()} here since
+ * they do not use the contents of {@link #bytes} in the computations.
+ * These methods simply inherit from {@link Object).
+ */
+ static final class ByteArray {
+ private final byte[] bytes;
+
+ ByteArray(byte[] bytes) {
+ this.bytes = bytes;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj) {
+ return true;
+ } else if (obj == null || getClass() != obj.getClass()) {
+ return false;
+ }
+ final ByteArray that = (ByteArray) obj;
+ return Arrays.equals(this.bytes, that.bytes);
+ }
+
+ @Override
+ public int hashCode() {
+ return Arrays.hashCode(bytes);
+ }
+ }
+
+ class PutOpCache {
+ class FamilyCache {
+ private final ColumnFamily family;
+ /** A (key -> value) map. */
Review Comment:
Thanks for the suggestion. Will update it.
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