Merge pull request #329 from Parquet/fix_file_system_resolution

fix filesystem resolution
diff --git a/parquet-hadoop/src/main/java/parquet/hadoop/ParquetReader.java b/parquet-hadoop/src/main/java/parquet/hadoop/ParquetReader.java
index 9c2ed41..3e85331 100644
--- a/parquet-hadoop/src/main/java/parquet/hadoop/ParquetReader.java
+++ b/parquet-hadoop/src/main/java/parquet/hadoop/ParquetReader.java
@@ -91,7 +91,7 @@
     this.filter = filter;
     this.conf = conf;
 
-    FileSystem fs = FileSystem.get(conf);
+    FileSystem fs = file.getFileSystem(conf);
     List<FileStatus> statuses = Arrays.asList(fs.listStatus(file));
     List<Footer> footers = ParquetFileReader.readAllFootersInParallelUsingSummaryFiles(conf, statuses);
     this.footersIterator = footers.iterator();