add back ability to configure the getfattr command through core-site.xml.

Author: childsb

src/main/java/org/apache/hadoop/fs/glusterfs/GlusterFSXattr.java

@@ -43,9 +43,16 @@ public enum CMD {
 
     private static String hostname;
 
-   private String getFattrCmdBase = "sudo getfattr -m . -n trusted.glusterfs.pathinfo";
-
+   private String getFattrCmdBase = null;
+   
+   public GlusterFSXattr(String getAttr) {
+       getFattrCmdBase=getAttr;
+   }
 
+   public GlusterFSXattr(){
+	   getFattrCmdBase = "sudo getfattr -m . -n trusted.glusterfs.pathinfo";
+   }
+   
     public String brick2host(String brick) throws IOException{
         String[] hf=null;
 

src/main/java/org/apache/hadoop/fs/glusterfs/GlusterVolume.java

@@ -42,7 +42,7 @@ public class GlusterVolume extends RawLocalFileSystem{
 
     protected String root=null;
 
-    protected static final GlusterFSXattr attr = new GlusterFSXattr();
+    protected static GlusterFSXattr attr = null;
 
     public GlusterVolume(){}
 
@@ -55,10 +55,18 @@ public GlusterVolume(Configuration conf){
     public void setConf(Configuration conf){
         log.info("initializing gluster volume..");
         super.setConf(conf);
+        String getfattrcmd = null;
         if(conf!=null){
 
             try{
                 root=conf.get("fs.glusterfs.mount", null);
+                getfattrcmd = conf.get("fs.glusterfs.getfattrcmd", null);
+                if(getfattrcmd!=null){
+                	attr = new GlusterFSXattr(getfattrcmd);
+                }else{
+                	attr = new GlusterFSXattr();
+                }
+                
                 //volName=conf.get("fs.glusterfs.volname", null);
                 //remoteGFSServer=conf.get("fs.glusterfs.server", null);