patch getinputstream, wait for group

git-svn-id: https://subversion.umiacs.umd.edu/ace/trunk@32 f1b3a171-7291-4a19-a512-95ad0ad9394a

ace-am/src/java/edu/umiacs/ace/driver/swap/SwapFileAccess.java

@@ -248,7 +248,7 @@ public class SwapFileAccess extends StorageDriver {
             LOG.trace("Path parses to uuid, testing " + id);
             return client.getFileGroupList().get(id);
         } catch ( IllegalArgumentException e ) {
-            LOG.trace("Path does not parse to a uuid, checking namespaces for '" + name +"'");
+            LOG.trace("Path does not parse to a uuid, checking namespaces for '" + name + "'");
             for ( FileGroup fg : client.getFileGroupList() ) {
                 if ( fg.getCombinedNameSpace().equals(name) ) {
                     return fg;
@@ -286,8 +286,7 @@ public class SwapFileAccess extends StorageDriver {
                     throw new RuntimeException("Could not open " + settings.getPrefix());
                 }
 
-                if (rootFile == null)
-                {
+                if ( rootFile == null ) {
                     LOG.error("Could not lookup swap file '" + settings.getPrefix() + "' ");
                     throw new RuntimeException("Could not open " + settings.getPrefix());
                 }
@@ -328,11 +327,19 @@ public class SwapFileAccess extends StorageDriver {
     public InputStream getItemInputStream( String itemPath ) throws IOException {
 
         SwapClient client = createClient();
-        FileGroup group = groupByName(client, settings.getCollection().getDirectory());
+        FileGroup group;
+        SwapFile file;
+        
+        try {
+            Thread.sleep(2000);
+            group = groupByName(client, settings.getCollection().getDirectory());
             if ( group == null ) {
-            throw new IOException("Could not file swap file group");
+                throw new IOException("Could not open swap file group");
             }
-        SwapFile file = null;
+        } catch ( InterruptedException e ) {
+            throw new IOException("Interrupted opening filegroup");
+        }
+
         try {
             file = group.getFileDetails(settings.getPrefix() + itemPath);
         } catch ( InterruptedException e ) {