add a read_log.py flie

read_log.py

Index: read_log.py
diff --git a/read_log.py b/read_log.py
new file mode 100644
index 0000000000000000000000000000000000000000..aabac90c2b027a98677333f83489259bd4111180
--- /dev/null
+++ b/read_log.py
@@ -0,0 +1,19 @@
+import os
+
+FOLDER = "/Users/liangzijie/Desktop/testdemo/lx3/out/"

[01tonythomas, 2017/09/25 19:55:09]

We cannot have this going into the program, but I dont think we will have to
iterate through folders. Can you check if running a workload creates a different
directory or create one extra log file in the same directory ? If its the same,
we dont need this functionality to scan through folders

+FLAG = "OVERALL"
+
+
+def read_file(filename, pattern):

[01tonythomas, 2017/09/25 19:55:09]

minor, but for next time - the function name should reflect what it is doing -
like here - its not just reading a file. I would better name it
`get_lines_for_pattern_in_file(filename, pattern)` or something like that. but
this is okey though. 

+    with open(filename) as f:
+        lines = f.readlines()
+        for line in lines:
+            if pattern in line:
+                print(line.strip())
+
+
+for each_file in os.listdir(FOLDER):
+    if each_file.startswith("2017"):
+        filename = os.path.join(FOLDER + each_file, "load.ycsb.log")
+        if os.path.exists(filename):
+            read_file(filename, FLAG)