annotate plugins/cherrypy/lib/aspect.py @ 140:e842a5f1b775 beta

Traipse Beta 'OpenRPG' {091123-00} Traipse is a distribution of OpenRPG that is designed to be easy to setup and go. Traipse also makes it easy for developers to work on code without fear of sacrifice. 'Ornery-Orc' continues the trend of 'Grumpy' and adds fixes to the code. 'Ornery-Orc's main goal is to offer more advanced features and enhance the productivity of the user. Update Summary (Beta) Added Bookmarks Fix to Remote Admin Commands Minor fix to text based Server Fix to Pretty Print, from Core Fix to Splitter Nodes not being created Fix to massive amounts of images loading, from Core Added 'boot' command to remote admin Added confirmation window for sent nodes Minor changes to allow for portability to an OpenSUSE linux OS Miniatures Layer pop up box allows users to turn off Mini labels, from FlexiRPG Zoom Mouse plugin added Images added to Plugin UI Switching to Element Tree Map efficiency, from FlexiRPG Added Status Bar to Update Manager default_manifest.xml renamed to default_upmana.xml Cleaner clode for saved repositories New TrueDebug Class in orpg_log (See documentation for usage) Mercurial's hgweb folder is ported to upmana Pretty important update that can help remove thousands of dead children from your gametree. Children, <forms />, <group_atts />, <horizontal />, <cols />, <rows />, <height />, etc... are all tags now. Check your gametree and look for dead children!! New Gametree Recursion method, mapping, and context sensitivity. !Infinite Loops return error instead of freezing the software! New Syntax added for custom PC sheets Tip of the Day added, from Core and community Fixed Whiteboard ID to prevent random line or text deleting. Modified ID's to prevent non updated clients from ruining the fix.
author sirebral
date Mon, 23 Nov 2009 03:36:26 -0600
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1 """
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2 Copyright (c) 2004, CherryPy Team (team@cherrypy.org)
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3 All rights reserved.
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4
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5 Redistribution and use in source and binary forms, with or without modification,
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6 are permitted provided that the following conditions are met:
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7
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8 * Redistributions of source code must retain the above copyright notice,
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9 this list of conditions and the following disclaimer.
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10 * Redistributions in binary form must reproduce the above copyright notice,
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11 this list of conditions and the following disclaimer in the documentation
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12 and/or other materials provided with the distribution.
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13 * Neither the name of the CherryPy Team nor the names of its contributors
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14 may be used to endorse or promote products derived from this software
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15 without specific prior written permission.
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16
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17 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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18 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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19 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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20 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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21 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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22 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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23 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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24 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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25 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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26 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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27 """
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28
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29 # return codes for _before and _after aspect methods
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30 STOP = 0
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31 CONTINUE = 1
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32
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33 class Aspect(object):
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34 """
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35 Base class for aspects. Derive new aspect classes from this, then
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36 override one or both of _before and _after.
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37 """
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38
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39 def __getattribute__(self, methodName):
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40
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41 # find method specified by methodName
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42 try:
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43 method = object.__getattribute__(self, methodName)
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44 except:
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45 raise
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46
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47 # if requested attribute is not a method, simply return it
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48 if not callable(method):
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49 return method
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50
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51 # define wrapper function
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52 def _wrapper(*k, **kw):
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53 # call _before method
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54 status, value = object.__getattribute__(self, '_before')(methodName, method)
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55 if status == STOP:
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56 return value
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57
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58 # call wrapped method and append results
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59 result = method(*k, **kw)
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60 if value:
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61 result = value + result
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62
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63 # call _after method
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64 status, value = object.__getattribute__(self, '_after')(methodName, method)
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65 if status == STOP:
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66 return value
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67 if value:
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68 result += value
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69
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70 # done!
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71 return result
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72
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73 # expose wrapper function if wrapped method is exposed
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74 if getattr(method, 'exposed', None):
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75 _wrapper.exposed = True
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76
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77 # return wrapper function. It'll get called instead of the
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78 # requested method.
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79 return _wrapper
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80
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81
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82 def _before(self, methodName, method):
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83 return CONTINUE, None
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84
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85
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86 def _after(self, methodName, method):
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87 return CONTINUE, None