Mercurial > traipse_dev

annotate orpg/mapper/base_msg.py @ 57:9014d7861bb3 traipse_dev

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Removed some extra print messages from the server. Cleaned up the Manifest that was causing problems on linux. Might have been an errouneous push. Testing on WinXP
author sirebral
date Fri, 07 Aug 2009 23:21:37 -0500
parents 072ffc1d466f
children 217fb049bd00 dcf4fbe09b70
rev   line source
0
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1 # Copyright (C) 2000-2001 The OpenRPG Project
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2 #
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3 # openrpg-dev@lists.sourceforge.net
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4 #
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5 # This program is free software; you can redistribute it and/or modify
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6 # it under the terms of the GNU General Public License as published by
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7 # the Free Software Foundation; either version 2 of the License, or
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8 # (at your option) any later version.
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9 #
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10 # This program is distributed in the hope that it will be useful,
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11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 # GNU General Public License for more details.
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14 #
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15 # You should have received a copy of the GNU General Public License
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16 # along with this program; if not, write to the Free Software
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17 # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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18 # --
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19 #
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20 # File: mapper/base_msg.py
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21 # Author: Chris Davis
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22 # Maintainer:
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23 # Version:
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24 # $Id: base_msg.py,v 1.9 2007/03/09 14:11:55 digitalxero Exp $
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25 #
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26 # Description:
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27 #
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28 __version__ = "$Id: base_msg.py,v 1.9 2007/03/09 14:11:55 digitalxero Exp $"
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29
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30 from threading import RLock
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31 from orpg.networking.mplay_client import *
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32
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33 class map_element_msg_base:
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34 # This is a base class
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35
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36 def __init__(self,reentrant_lock_object = None):
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37
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38 if not hasattr(self,"tagname"):
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39 raise Exception, "This is a virtual class that cannot be directly instantiated. Set self.tagname in derived class."
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40
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41 self._props = {}
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42 # This is a dictionary that holds (value,changed) 2-tuples, indexed by attribute
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43 # Avoid manipulating these values directly. Instead, use the provided accessor methods.
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44 # If there is not one that suits your needs, please add one to this class and
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45 # use it instead.
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46
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47 self.children = {}
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48 # This next clause will set self.p_lock to a passed-in RLock object, if present.
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49 # Otherwise, it will create it's very own for this instance.
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50 # Using a passed in object is useful to protect an entire <map/> element from
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51 # being changed by another thread when any part of it is being change by another
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52 # thread. Just pass the map_msg's p_lock object in to it's descendents.
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53 if reentrant_lock_object: self.p_lock = reentrant_lock_object
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54 else: self.p_lock = RLock()
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55
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56 def clear(self):
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57 self.p_lock.acquire()
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58
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59 for child in self.children.keys():
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60 self.children[child].clear()
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61 self.children[child] = None
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62 del self.children[child]
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63
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64 for p in self._props.keys(): self._props[p] = None
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65
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66 self.p_lock.release()
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67
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68 #########################################
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69 # Accessor functions begin
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70
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71 # Access single property
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72
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73 def init_prop(self,prop,value): # set's the changed flag to False and assigns
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74 self.p_lock.acquire()
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75 self._props[prop] = (value, 0)
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76 self.p_lock.release()
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77
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78 def set_prop(self,prop,value): # set's the changed flag to True and assigns
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79 self.p_lock.acquire()
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80 self._props[prop] = (value, 1)
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81 self.p_lock.release()
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82
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83 def get_prop(self,prop): # returns None if prop not found
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84 self.p_lock.acquire()
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85 if prop in self._props.keys():
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86 (p,c) = self._props[prop]
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87 self.p_lock.release()
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88 return p
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89 else: self.p_lock.release(); return None
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90
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91 def is_prop_changed(self,prop): # returns None if prop not found
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92 self.p_lock_acquire()
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93 if prop in self._props.keys():
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94 (p,c) = self._props[prop]
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95 self.p_lock.release()
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96 return c
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97 else: self.p_lock.release(); return None
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98
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99 def get_child(self,key): # returns None if key not found in children list
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100 self.p_lock_acquire()
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101 if self.children.has_key(key):
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102 self.p_lock.release()
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103 return self.children[key]
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104 else:
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105 self.p_lock.release()
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106 return None
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107
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108 # Access multiple properties
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109
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110 def init_props(self,props): # same as init_prop(), but takes dictionary of props
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111 self.p_lock.acquire()
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112 for k in props.keys(): self._props[k] = (props[k],0)
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113 self.p_lock.release()
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114
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115 def set_props(self,props): # same as set_prop(), but takes dictionary of props
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116 self.p_lock.acquire()
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117 for k in props.keys(): self._props[k] = (props[k],1)
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118 self.p_lock.release()
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119
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120 def get_all_props(self): # returns dictionary of all properties, regardless of change
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121 self.p_lock.acquire()
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122
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123 result = {}
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124 for k in self._props.keys():
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125 (p,c) = self._props[k]
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126 result[k] = p
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127
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128 self.p_lock.release()
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129 return result
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130
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131 def get_changed_props(self): # returns dictionary of all properties that have been changed
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132 self.p_lock.acquire()
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133 result = {}
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134 for k in self._props.keys():
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135 (p,c) = self._props[k]
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136 if c: result[k] = p
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137 self.p_lock.release()
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138 return result
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139
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140 def get_children(self): # returns dictionary of children
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141 return self.children
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142
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143 # Accessor functions end
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144 #########################################
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145
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146 #########################################
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147 # XML emitters begin
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148 def get_all_xml(self,action="new",output_action = 0): # outputs a tag with all attributes it contains
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149 self.p_lock.acquire()
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150 xml_str = "<" + self.tagname
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151 if action and output_action: xml_str += " action='" + action + "'"
0
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152 for k in self._props.keys():
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153 (p,c) = self._props[k]
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154 if k != "action" or not action: xml_str += " " + k + "='" + p + "'"
0
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155 if self.children:
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156 xml_str += ">"
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157 for child in self.children.keys(): xml_str += self.children[child].get_all_xml(action)
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158 xml_str += "</" + self.tagname + ">"
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159 else: xml_str += "/>"
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160 self.p_lock.release()
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161 return xml_str
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162
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163 def get_changed_xml(self,action="update",output_action = 0): # outputs a tag with all changed attributes
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164 self.p_lock.acquire()
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165 xml_str = "<" + self.tagname
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166 if action and output_action:
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167 xml_str += " action='" + action + "'"
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168
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169 # if present, always send the id, even if it didn't change
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170 if self._props.has_key("id"):
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171 (p,c) = self._props["id"]
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172 xml_str += " id='" + p + "'"
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173 for k in self._props.keys():
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174 (p,c) = self._props[k]
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175 if (k != "id" or k != "action") and c == 1: xml_str += " " + k + "='" + p + "'"
0
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176 if self.children:
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177 xml_str += ">"
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178 for child in self.children.keys(): xml_str += self.children[child].get_changed_xml(action)
0
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179 xml_str += "</" + self.tagname + ">"
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180 else: xml_str += "/>"
0
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181 self.p_lock.release()
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182 return xml_str
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183
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184 # convenience method to use if only this tag is modified
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185 # outputs a <map/> element containing only the changes to this tag
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186 def standalone_update_text(self,update_id_string):
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187 buffer = "<map id='" + update_id_string + "'>"
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188 buffer += self.get_changed_xml("update")
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189 buffer += "<map/>"
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190 return buffer
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191
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192 # XML emitters end
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193 #########################################
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194
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195 #########################################
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196 # XML importers begin
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197
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198 def _from_dom(self,xml_dom,prop_func):
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199 self.p_lock.acquire()
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200 if xml_dom.tagName == self.tagname:
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201 if xml_dom.getAttributeKeys():
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202 for k in xml_dom.getAttributeKeys():
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203 prop_func(k,xml_dom.getAttribute(k))
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204 else:
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205 self.p_lock.release()
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206 raise Exception, "Error attempting to modify a " + self.tagname + " from a non-<" + self.tagname + "/> element"
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207 self.p_lock.release()
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208
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209 def init_from_dom(self,xml_dom):
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210 # xml_dom must be pointing to an empty tag. Override in a derived class for <map/> and other similar tags.
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211 self._from_dom(xml_dom,self.init_prop)
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212
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213 def set_from_dom(self,xml_dom):
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214 # xml_dom must be pointing to an empty tag. Override in a derived class for <map/> and other similar tags
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215 self._from_dom(xml_dom,self.set_prop)
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216
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217 def init_from_xml(self,xml):
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218 xml_dom = parseXml(xml)
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219 node_list = xml_dom.getElementsByTagName(self.tagname)
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220 if len(node_list) < 1: print "Warning: no <" + self.tagname + "/> elements found in DOM."
0
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221 else:
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222 while len(node_list): self.init_from_dom(node_list.pop())
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223 if xml_dom: xml_dom.unlink()
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224
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225 def set_from_xml(self,xml):
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226 xml_dom = parseXml(xml)
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227 node_list = xml_dom.getElementsByTagName(self.tagname)
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228 if len(node_list) < 1: print "Warning: no <" + self.tagname + "/> elements found in DOM."
0
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229 else:
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230 while len(node_list): self.set_from_dom(node_list.pop())
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231 if xml_dom: xml_dom.unlink()
0
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232
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233 # XML importers end
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234 #########################################