ashutoshcipher commented on code in PR #4750:
URL: https://github.com/apache/hadoop/pull/4750#discussion_r989106311
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hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/web/JsonUtilClient.java:
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@@ -965,4 +968,53 @@ private static SnapshotStatus toSnapshotStatus(
SnapshotStatus.getParentPath(fullPath)));
return snapshotStatus;
}
+
+ @VisibleForTesting
+ public static BlockLocation[] toBlockLocationArray(Map<?, ?> json)
+ throws IOException {
+ final Map<?, ?> rootmap =
+ (Map<?, ?>) json.get(BlockLocation.class.getSimpleName() + "s");
+ final List<?> array =
+ JsonUtilClient.getList(rootmap, BlockLocation.class.getSimpleName());
+ Preconditions.checkNotNull(array);
+ final BlockLocation[] locations = new BlockLocation[array.size()];
+ int i = 0;
+ for (Object object : array) {
+ final Map<?, ?> m = (Map<?, ?>) object;
+ locations[i++] = JsonUtilClient.toBlockLocation(m);
+ }
+ return locations;
+ }
+
+ /** Convert a Json map to BlockLocation. **/
+ private static BlockLocation toBlockLocation(Map<?, ?> m) throws IOException
{
+ if (m == null) {
+ return null;
+ }
+ long length = ((Number) m.get("length")).longValue();
+ long offset = ((Number) m.get("offset")).longValue();
+ boolean corrupt = Boolean.getBoolean(m.get("corrupt").toString());
+ String[] storageIds = toStringArray(getList(m, "storageIds"));
Review Comment:
Thanks for suggestion. I think current way looks fine too. Any specific
reason to modify?
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