Java: FilerProto.Entry can read size via attributes

other/java/client/src/main/java/seaweedfs/client/FilerClient.java

@@ -59,15 +59,28 @@ public class FilerClient extends FilerGrpcClient {
 
     public static FilerProto.Entry afterEntryDeserialization(FilerProto.Entry entry) {
         if (entry.getChunksList().size() <= 0) {
+            if (entry.getContent().isEmpty()) {
                 return entry;
+            } else {
+                if (entry.getAttributes().getFileSize() <= 0) {
+                    FilerProto.Entry.Builder entryBuilder = entry.toBuilder();
+                    FilerProto.FuseAttributes.Builder attrBuilder = entry.getAttributes().toBuilder();
+                    attrBuilder.setFileSize(entry.getContent().size());
+                    entryBuilder.setAttributes(attrBuilder);
+                    return entryBuilder.build();
+                }
             }
+            return entry;
+        } else {
             String fileId = entry.getChunks(0).getFileId();
             if (fileId != null && fileId.length() != 0) {
                 return entry;
             }
             FilerProto.Entry.Builder entryBuilder = entry.toBuilder();
             entryBuilder.clearChunks();
+            long fileSize = 0;
             for (FilerProto.FileChunk chunk : entry.getChunksList()) {
+                fileSize = Math.max(fileSize, chunk.getOffset()+chunk.getSize());
                 FilerProto.FileChunk.Builder chunkBuilder = chunk.toBuilder();
                 chunkBuilder.setFileId(toFileId(chunk.getFid()));
                 String sourceFileId = toFileId(chunk.getSourceFid());
@@ -76,8 +89,14 @@ public class FilerClient extends FilerGrpcClient {
                 }
                 entryBuilder.addChunks(chunkBuilder);
             }
+            if (entry.getAttributes().getFileSize() <= 0) {
+                FilerProto.FuseAttributes.Builder attrBuilder = entry.getAttributes().toBuilder();
+                attrBuilder.setFileSize(fileSize);
+                entryBuilder.setAttributes(attrBuilder);
+            }
             return entryBuilder.build();
         }
+    }
 
     public boolean mkdirs(String path, int mode) {
         String currentUser = System.getProperty("user.name");