jpountz commented on a change in pull request #107:
URL: https://github.com/apache/lucene/pull/107#discussion_r620941684
##########
File path: lucene/core/src/java/org/apache/lucene/codecs/CodecUtil.java
##########
@@ -640,6 +640,33 @@ static void writeCRC(IndexOutput output) throws
IOException {
throw new IllegalStateException(
"Illegal CRC-32 checksum: " + value + " (resource=" + output + ")");
}
- output.writeLong(value);
+ writeLong(output, value);
+ }
+
+ /** write int value on header / footer */
+ public static void writeInt(DataOutput out, int i) throws IOException {
Review comment:
Maybe say explicitly on these methods that they write in big-endian
order?
##########
File path:
lucene/backward-codecs/src/java/org/apache/lucene/backward_codecs/store/DirectoryUtil.java
##########
@@ -0,0 +1,56 @@
+package org.apache.lucene.backward_codecs.store;
+
+import java.io.IOException;
+import org.apache.lucene.store.ChecksumIndexInput;
+import org.apache.lucene.store.DataInput;
+import org.apache.lucene.store.DataOutput;
+import org.apache.lucene.store.Directory;
+import org.apache.lucene.store.IOContext;
+import org.apache.lucene.store.IndexInput;
+import org.apache.lucene.store.IndexOutput;
+
+/**
+ * Utility class to wrap open files
+ *
+ * @lucene.internal
+ */
+public final class DirectoryUtil {
Review comment:
Give it a more descriptive name, e.g. `EndiannessReverserUtil` or
something along these lines for consistency with the input/output wrapper names?
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