Add plugin base class

include/gmon.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+
+
+class GmonPluginError(Exception):
+    pass
+
+
+class BasePlugin(object):
+
+    def __init__(self, data):
+        self.data = data
+
+    def render(self):
+        method_n = "render_" + self.data.fmt
+
+        def ex(__):
+            raise GmonPluginError("method not defined: " + method_n)
+
+        render_fn = getattr(self, method_n, ex)
+        return render_fn()

plugins/dump.py

@@ -1,11 +1,10 @@
 # -*- coding: utf-8 -*-
 
+import gmon
 
-class Plugin():
 
-    def __init__(self, subcommand):
-        self.args = subcommand.args
+class Plugin(gmon.BasePlugin):
 
-    def render(self):
+    def render_plain(self):
         out = "args = %s" % repr(self.args)
         return out

plugins/echo.py

@@ -1,11 +1,10 @@
 # -*- coding: utf-8 -*-
 
+import gmon
 
-class Plugin():
 
-    def __init__(self, subcommand):
-        self.args = subcommand.args
+class Plugin(gmon.BasePlugin):
 
-    def render(self):
-        out = "".join([str(s) for s in self.args])
+    def render_plain(self):
+        out = "".join([str(s) for s in self.data.args])
         return out

plugins/sh.py

@@ -2,11 +2,10 @@
 
 import subprocess
 
+import gmon
 
-class Plugin():
 
-    def __init__(self, subcommand):
-        self.args = subcommand.args
+class Plugin(gmon.BasePlugin):
 
-    def render(self):
+    def render_plain(self):
         return subprocess.check_output(self.args)