/// <exception cref="Org.Apache.Hadoop.Hdfs.Protocol.QuotaExceededException"/> internal RenameOperation(FSDirectory fsd, string src, string dst, INodesInPath srcIIP , INodesInPath dstIIP) { this.fsd = fsd; this.src = src; this.dst = dst; this.srcIIP = srcIIP; this.dstIIP = dstIIP; this.srcParentIIP = srcIIP.GetParentINodesInPath(); this.dstParentIIP = dstIIP.GetParentINodesInPath(); BlockStoragePolicySuite bsps = fsd.GetBlockStoragePolicySuite(); srcChild = this.srcIIP.GetLastINode(); srcChildName = srcChild.GetLocalNameBytes(); int srcLatestSnapshotId = srcIIP.GetLatestSnapshotId(); isSrcInSnapshot = srcChild.IsInLatestSnapshot(srcLatestSnapshotId); srcChildIsReference = srcChild.IsReference(); srcParent = this.srcIIP.GetINode(-2).AsDirectory(); // Record the snapshot on srcChild. After the rename, before any new // snapshot is taken on the dst tree, changes will be recorded in the // latest snapshot of the src tree. if (isSrcInSnapshot) { srcChild.RecordModification(srcLatestSnapshotId); } // check srcChild for reference srcRefDstSnapshot = srcChildIsReference ? srcChild.AsReference().GetDstSnapshotId () : Org.Apache.Hadoop.Hdfs.Server.Namenode.Snapshot.Snapshot.CurrentStateId; oldSrcCounts = new QuotaCounts.Builder().Build(); if (isSrcInSnapshot) { INodeReference.WithName withName = srcParent.ReplaceChild4ReferenceWithName(srcChild , srcLatestSnapshotId); withCount = (INodeReference.WithCount)withName.GetReferredINode(); srcChild = withName; this.srcIIP = INodesInPath.Replace(srcIIP, srcIIP.Length() - 1, srcChild); // get the counts before rename withCount.GetReferredINode().ComputeQuotaUsage(bsps, oldSrcCounts, true); } else { if (srcChildIsReference) { // srcChild is reference but srcChild is not in latest snapshot withCount = (INodeReference.WithCount)srcChild.AsReference().GetReferredINode(); } else { withCount = null; } } }
/// <exception cref="Org.Apache.Hadoop.Hdfs.Protocol.QuotaExceededException"/> /// <exception cref="Org.Apache.Hadoop.FS.UnresolvedLinkException"/> /// <exception cref="Org.Apache.Hadoop.Hdfs.Protocol.AclException"/> /// <exception cref="Org.Apache.Hadoop.FS.FileAlreadyExistsException"/> internal static void MkdirForEditLog(FSDirectory fsd, long inodeId, string src, PermissionStatus permissions, IList <AclEntry> aclEntries, long timestamp) { System.Diagnostics.Debug.Assert(fsd.HasWriteLock()); INodesInPath iip = fsd.GetINodesInPath(src, false); byte[] localName = iip.GetLastLocalName(); INodesInPath existing = iip.GetParentINodesInPath(); Preconditions.CheckState(existing.GetLastINode() != null); UnprotectedMkdir(fsd, inodeId, existing, localName, permissions, aclEntries, timestamp ); }