[mlpack-svn] r15244 - mlpack/conf/jenkins-conf/benchmark/util

[fastlab-svn at coffeetalk-1.cc.gatech.edu]

Author: marcus
Date: 2013-06-17 12:04:54 -0400 (Mon, 17 Jun 2013)
New Revision: 15244

Added:
   mlpack/conf/jenkins-conf/benchmark/util/log.py
Log:
Add log class to provide meaningful messages

Added: mlpack/conf/jenkins-conf/benchmark/util/log.py
===================================================================
--- mlpack/conf/jenkins-conf/benchmark/util/log.py	                        (rev 0)
+++ mlpack/conf/jenkins-conf/benchmark/util/log.py	2013-06-17 16:04:54 UTC (rev 15244)
@@ -0,0 +1,80 @@
+'''
+	@file log.py
+	@author Marcus Edel
+
+	Implementation of the Log class.
+'''
+
+import re
+import sys
+
+
+class Log(object):
+
+	# Color code escape sequences -- but not on Windows.
+	if sys.platform == 'win32':
+		BASH_RED = ''
+		BASH_GREEN = ''
+		BASH_YELLOW = ''
+		BASH_CYAN = ''
+		BASH_CLEAR = ''
+	else:
+		BASH_RED = '\033[0;31m'
+		BASH_GREEN = '\033[0;32m'
+  		BASH_YELLOW = '\033[0;33m'
+  		BASH_CYAN = '\033[0;36m'
+  		BASH_CLEAR = '\033[0m'
+
+  	#! Prints debug output with the appropriate tag: [DEBUG].
+	@staticmethod
+	def Debug(line, verbose=True):
+		if verbose:
+			print >> sys.stdout, Log.BASH_CYAN + '[DEBUG] ' + Log.BASH_CLEAR + Log.WrapLine(line)
+
+	#! Prints informational messages prefixed with [INFO ].
+	@staticmethod
+	def Info(line, verbose=True):
+		if verbose:
+			print >> sys.stdout, Log.BASH_GREEN + '[INFO ] ' + Log.BASH_CLEAR + Log.WrapLine(line)
+
+	#! Prints warning messages prefixed with [WARN ].
+	@staticmethod
+	def Warn(line, verbose=True):
+		if verbose:
+			print >> sys.stdout, Log.BASH_YELLOW + '[WARN ] ' + Log.BASH_CLEAR + Log.WrapLine(line)
+
+	#! Prints fatal messages prefixed with [FATAL].
+	@staticmethod
+	def Fatal(line, verbose=True):
+		if verbose:
+			print >> sys.stderr, Log.BASH_RED + '[FATAL] ' + Log.BASH_CLEAR + Log.WrapLine(line)
+
+	#! Prints messages without any prefixed.
+	@staticmethod
+	def Notice(line, verbose=True):
+		if verbose:
+			print >> sys.stdout, Log.WrapLine(line)
+
+	# Truncate the String into lines of 80 characters.
+	@staticmethod
+	def WrapLine(line):
+		return '\n'.join(line.strip() for line in re.findall(r'.{1,80}(?:\s+|$)', line))
+
+	#! Prints out a table of data.
+	@staticmethod
+	def PrintTable(table):
+
+		def MaxWidth(table, index):
+			return max([len(str(row[index])) for row in table])
+
+		colPaddings = []
+		for i in range(len(table[0])):
+			colPaddings.append(MaxWidth(table, i))
+
+		for row in table:
+			print >> sys.stdout, row[0].ljust(colPaddings[0] + 1),
+
+			for i in range(1, len(row)):
+				col = str(row[i]).rjust(colPaddings[i] + 2)
+				print >> sys.stdout, col,
+			print >> sys.stdout
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