Refactor loader classes

- rename BaseLoader to YamlFileLoader as base class of QTIP specs loader
- create an abstract BaseLoader
- create FileLoader for logfile collector

Change-Id: I0c992cd847fc0dce4fdd73a13c1cdbc406c84532
Signed-off-by: Yujun Zhang <zhang.yujunz@zte.com.cn>

2 files changed, 26 insertions, 0 deletions

diff --git a/qtip/collector/base.py b/qtip/collector/base.py
index cd8fc797..2a25455c 100644
--- a/qtip/collector/base.py
+++ b/qtip/collector/base.py
@@ -10,3 +10,5 @@
 
 class BaseCollector(object):
     """performance metrics collector"""
+    def __init__(self, config):
+        self._config = config
diff --git a/qtip/collector/logfile.py b/qtip/collector/logfile.py
index 6528ea9f..19780aaa 100644
--- a/qtip/collector/logfile.py
+++ b/qtip/collector/logfile.py
@@ -9,6 +9,30 @@
 
 from base import BaseCollector
 
+from qtip.base.constant import CollectorProp as CProp
+from qtip.loader.file import FileLoader
+
 
 class LogfileCollector(BaseCollector):
     """collect performance metrics from log files"""
+
+    def __init__(self, config, paths=None):
+        super(LogfileCollector, self).__init__(config)
+        self.loader = FileLoader('.', paths)
+
+    def collect(self):
+        captured = {}
+        for item in self._config[CProp.LOGS]:
+            captured.update(self._parse_log(item))
+        return captured
+
+    def _parse_log(self, log_item):
+        captured = {}
+        # TODO(yujunz) select parser by name
+        if CProp.GREP in log_item:
+            for rule in log_item[CProp.GREP]:
+                captured.update(self._grep(log_item[CProp.FILENAME], rule))
+        return captured
+
+    def _grep(self, filename, rule):
+        return {}