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HCFS support chown

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This commit is contained in:
Chris Lu 2018-12-04 00:48:11 -08:00
parent 650d1af978
commit d5197d6a50
2 changed files with 50 additions and 0 deletions
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18
other/java/hdfs/src/main/java/seaweed/hdfs/SeaweedFileSystem.java
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@ -218,6 +218,24 @@ public class SeaweedFileSystem extends org.apache.hadoop.fs.FileSystem {
return seaweedFileSystemStore.getFileStatus(path);
}
/**
* Set owner of a path (i.e. a file or a directory).
* The parameters owner and group cannot both be null.
*
* @param path The path
* @param owner If it is null, the original username remains unchanged.
* @param group If it is null, the original groupname remains unchanged.
*/
@Override
public void setOwner(Path path, final String owner, final String group)
throws IOException {
LOG.debug("setOwner path: {}", path);
path = qualify(path);
seaweedFileSystemStore.setOwner(path, owner, group);
}
Path qualify(Path path) {
return path.makeQualified(uri, workingDirectory);
}

32
other/java/hdfs/src/main/java/seaweed/hdfs/SeaweedFileSystemStore.java
View file

@ -273,4 +273,36 @@ public class SeaweedFileSystemStore {
bufferSize,
readAheadQueueDepth);
}
public void setOwner(Path path, String owner, String group) {
LOG.debug("setOwner path:{} owner:{} group:{}", path, owner, group);
FilerProto.Entry entry = lookupEntry(path);
if (entry == null) {
LOG.debug("setOwner path:{} entry:{}", path, entry);
return;
}
FilerProto.Entry.Builder entryBuilder = entry.toBuilder();
FilerProto.FuseAttributes.Builder attributesBuilder = entry.getAttributes().toBuilder();
if (owner != null) {
attributesBuilder.setUserName(owner);
}
if (group != null) {
attributesBuilder.clearGroupName();
attributesBuilder.addGroupName(group);
}
entryBuilder.setAttributes(attributesBuilder);
LOG.debug("setOwner path:{} entry:{}", path, entryBuilder, owner, group);
filerGrpcClient.getBlockingStub().updateEntry(FilerProto.UpdateEntryRequest.newBuilder()
.setDirectory(getParentDirectory(path))
.setEntry(entryBuilder)
.build());
}
}