[#205] Add iRODS server version check to resize operation.

If NFSRODS detects that the iRODS server does not support the replica
truncate API, NFSRODS will throw an exception.

README.md

@@ -273,6 +273,7 @@ A user can set permissions via `nfs4_setfacl` on a collection or data object if
 ## Notes
 - `chmod` is currently implemented as a `NOP` and will return `0`.
 - NFSRODS currently reports disk free (`df -a`) as `0` to avoid being misleading to other programs.
+- Resizing data objects requires iRODS 4.3.2 or later.
 
 ## Limitations
 ### Limitation 1: Write operations do not trigger replication on a replication resource

irods-vfs-impl/src/main/java/org/irods/nfsrods/vfs/IRODSVirtualFileSystem.java

@@ -1405,6 +1405,11 @@ public void setattr(Inode _inode, Stat _stat) throws IOException
 
             try
             {
+                if (!factory_.getIRODSServerProperties(acct).isAtLeastIrods432())
+                {
+                    throw new IOException("iRODS server does not support rc_replica_truncate API. Requires iRODS 4.3.2 or later.");
+                }
+
                 final var path = getPath(toInodeNumber(_inode));
                 log_.debug("setattr - Setting data size of [{}] to [{}] bytes.", path.toString(), _stat.getSize());
                 factory_.getDataObjectAO(acct).truncateReplica(path.toString(), _stat.getSize());