nfsv3: simplify uid3, gid3 objects

Motivation:
uid3 and gid3 object are wraps around uint32, which is by itself wrap around
int.

Modification:
simplify buid3 and gid3y wrapping directly int

Result:
less load on GC.

Acked-by: Paul Millar
Acked-by: Marina Sahakyan
Target: master

core/src/main/java/org/dcache/nfs/v3/HimeraNfsUtils.java

@@ -66,10 +66,10 @@ public class HimeraNfsUtils {
         at.nlink= new uint32( stat.getNlink() );
 
         //public int uid;
-        at.uid= new uid3( new uint32(stat.getUid()) );
+        at.uid= new uid3(stat.getUid());
 
         //public int gid;
-        at.gid=new gid3(new uint32( stat.getGid()) );
+        at.gid=new gid3(stat.getGid());
 
         //public int rdev;
         at.rdev = new specdata3();
@@ -122,11 +122,11 @@ public class HimeraNfsUtils {
         long now = System.currentTimeMillis();
 
         if( s.uid.set_it ) {
-            stat.setUid( s.uid.uid.value.value);
+            stat.setUid( s.uid.uid.value);
         }
 
         if( s.gid.set_it ) {
-            stat.setGid(s.gid.gid.value.value);
+            stat.setGid(s.gid.gid.value);
         }
 
         if( s.mode.set_it  ) {

core/src/main/java/org/dcache/nfs/v3/NfsServerV3.java

@@ -311,7 +311,7 @@ public class NfsServerV3 extends nfs3_protServerStub {
             if (newAttr != null) {
                 fmode = newAttr.mode.mode.value.value | Stat.S_IFREG;
                 if( newAttr.uid.set_it || newAttr.gid.set_it) {
-                    actualSubject = UnixSubjects.toSubject(newAttr.uid.uid.value.value, newAttr.gid.gid.value.value);
+                    actualSubject = UnixSubjects.toSubject(newAttr.uid.uid.value, newAttr.gid.gid.value);
                 }
             }
             inode = fs.create(parent, Stat.Type.REGULAR, path, actualSubject, fmode);
@@ -611,7 +611,7 @@ public class NfsServerV3 extends nfs3_protServerStub {
             if (attr != null) {
                 mode = attr.mode.mode.value.value | Stat.S_IFDIR;
                 if( attr.uid.set_it || attr.gid.set_it) {
-                    actualSubject = UnixSubjects.toSubject(attr.uid.uid.value.value, attr.gid.gid.value.value);
+                    actualSubject = UnixSubjects.toSubject(attr.uid.uid.value, attr.gid.gid.value);
                 }
             }
 

core/src/main/java/org/dcache/nfs/v3/xdr/gid3.java

 /*
- * Copyright (c) 2009 - 2012 Deutsches Elektronen-Synchroton,
+ * Copyright (c) 2009 - 2021 Deutsches Elektronen-Synchroton,
  * Member of the Helmholtz Association, (DESY), HAMBURG, GERMANY
  *
  * This library is free software; you can redistribute it and/or modify
@@ -26,12 +26,12 @@ import java.io.IOException;
 
 public class gid3 implements XdrAble {
 
-    public uint32 value;
+    public int value;
 
     public gid3() {
     }
 
-    public gid3(uint32 value) {
+    public gid3(int value) {
         this.value = value;
     }
 
@@ -42,12 +42,12 @@ public class gid3 implements XdrAble {
 
     public void xdrEncode(XdrEncodingStream xdr)
            throws OncRpcException, IOException {
-        value.xdrEncode(xdr);
+        xdr.xdrEncodeInt(value);
     }
 
     public void xdrDecode(XdrDecodingStream xdr)
            throws OncRpcException, IOException {
-        value = new uint32(xdr);
+        value = xdr.xdrDecodeInt();
     }
 
 }

core/src/main/java/org/dcache/nfs/v3/xdr/uid3.java

 /*
- * Copyright (c) 2009 - 2012 Deutsches Elektronen-Synchroton,
+ * Copyright (c) 2009 - 2021 Deutsches Elektronen-Synchroton,
  * Member of the Helmholtz Association, (DESY), HAMBURG, GERMANY
  *
  * This library is free software; you can redistribute it and/or modify
@@ -26,12 +26,12 @@ import java.io.IOException;
 
 public class uid3 implements XdrAble {
 
-    public uint32 value;
+    public int value;
 
     public uid3() {
     }
 
-    public uid3(uint32 value) {
+    public uid3(int value) {
         this.value = value;
     }
 
@@ -42,12 +42,12 @@ public class uid3 implements XdrAble {
 
     public void xdrEncode(XdrEncodingStream xdr)
            throws OncRpcException, IOException {
-        value.xdrEncode(xdr);
+        xdr.xdrEncodeInt(value);
     }
 
     public void xdrDecode(XdrDecodingStream xdr)
            throws OncRpcException, IOException {
-        value = new uint32(xdr);
+        value = xdr.xdrDecodeInt();
     }
 
 }