added file utility for checksum/stat

src/python/dm/common/utility/fileUtility.py

+#!/usr/bin/env python
+
+import os
+import stat
+from dm.common.utility.dmSubprocess import DmSubprocess
+
+class FileUtility:
+
+    @classmethod
+    def getMd5Sum(cls, filePath, fileInfo={}):
+        p = DmSubprocess.getSubprocess('md5sum %s' % filePath)
+        p.run()
+        md5Sum = p.getStdOut().split()[0]
+        fileInfo['md5Sum'] = md5Sum
+        fileInfo['filePath'] = filePath
+        return fileInfo
+
+    @classmethod
+    def statFile(cls, filePath, fileInfo={}):
+        statResult = os.stat(filePath)
+        fileInfo['filePath'] = filePath
+        fileInfo['fileSize'] = statResult[stat.ST_SIZE]
+        fileInfo['createTime'] = statResult[stat.ST_CTIME]
+        fileInfo['accessTime'] = statResult[stat.ST_ATIME]
+        fileInfo['modifyTime'] = statResult[stat.ST_MTIME]
+        return fileInfo
+
+#######################################################################
+# Testing.
+if __name__ == '__main__':
+    print FileUtility.getMd5Sum('/tmp/file')
+    print FileUtility.statFile('/tmp/file')
+