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2 | a8083063 | Iustin Pop | #
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3 | a8083063 | Iustin Pop | |
4 | 98dfcaff | Iustin Pop | # Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Google Inc.
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5 | a8083063 | Iustin Pop | #
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6 | a8083063 | Iustin Pop | # This program is free software; you can redistribute it and/or modify
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7 | a8083063 | Iustin Pop | # it under the terms of the GNU General Public License as published by
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8 | a8083063 | Iustin Pop | # the Free Software Foundation; either version 2 of the License, or
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9 | a8083063 | Iustin Pop | # (at your option) any later version.
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10 | a8083063 | Iustin Pop | #
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11 | a8083063 | Iustin Pop | # This program is distributed in the hope that it will be useful, but
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12 | a8083063 | Iustin Pop | # WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | a8083063 | Iustin Pop | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | a8083063 | Iustin Pop | # General Public License for more details.
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15 | a8083063 | Iustin Pop | #
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16 | a8083063 | Iustin Pop | # You should have received a copy of the GNU General Public License
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17 | a8083063 | Iustin Pop | # along with this program; if not, write to the Free Software
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18 | a8083063 | Iustin Pop | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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19 | a8083063 | Iustin Pop | # 02110-1301, USA.
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20 | a8083063 | Iustin Pop | |
21 | a8083063 | Iustin Pop | |
22 | b8028dcf | Michael Hanselmann | """Ganeti exception handling.
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23 | b8028dcf | Michael Hanselmann |
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24 | b8028dcf | Michael Hanselmann | """
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25 | b8028dcf | Michael Hanselmann | |
26 | 88ac4075 | Jose A. Lopes | from ganeti import constants |
27 | 88ac4075 | Jose A. Lopes | |
28 | 88ac4075 | Jose A. Lopes | |
29 | 88ac4075 | Jose A. Lopes | ECODE_RESOLVER = constants.ERRORS_ECODE_RESOLVER |
30 | 88ac4075 | Jose A. Lopes | ECODE_NORES = constants.ERRORS_ECODE_NORES |
31 | 88ac4075 | Jose A. Lopes | ECODE_TEMP_NORES = constants.ERRORS_ECODE_TEMP_NORES |
32 | 88ac4075 | Jose A. Lopes | ECODE_INVAL = constants.ERRORS_ECODE_INVAL |
33 | 88ac4075 | Jose A. Lopes | ECODE_STATE = constants.ERRORS_ECODE_STATE |
34 | 88ac4075 | Jose A. Lopes | ECODE_NOENT = constants.ERRORS_ECODE_NOENT |
35 | 88ac4075 | Jose A. Lopes | ECODE_EXISTS = constants.ERRORS_ECODE_EXISTS |
36 | 88ac4075 | Jose A. Lopes | ECODE_NOTUNIQUE = constants.ERRORS_ECODE_NOTUNIQUE |
37 | 88ac4075 | Jose A. Lopes | ECODE_FAULT = constants.ERRORS_ECODE_FAULT |
38 | 88ac4075 | Jose A. Lopes | ECODE_ENVIRON = constants.ERRORS_ECODE_ENVIRON |
39 | 88ac4075 | Jose A. Lopes | ECODE_ALL = constants.ERRORS_ECODE_ALL |
40 | df156277 | Michael Hanselmann | |
41 | 5c983ee5 | Iustin Pop | |
42 | a8083063 | Iustin Pop | class GenericError(Exception): |
43 | a8083063 | Iustin Pop | """Base exception for Ganeti.
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44 | a8083063 | Iustin Pop |
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45 | a8083063 | Iustin Pop | """
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46 | a8083063 | Iustin Pop | |
47 | a8083063 | Iustin Pop | |
48 | a8083063 | Iustin Pop | class LockError(GenericError): |
49 | a8083063 | Iustin Pop | """Lock error exception.
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50 | a8083063 | Iustin Pop |
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51 | a8083063 | Iustin Pop | This signifies problems in the locking subsystem.
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52 | a8083063 | Iustin Pop |
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53 | a8083063 | Iustin Pop | """
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54 | a8083063 | Iustin Pop | |
55 | a8083063 | Iustin Pop | |
56 | b6522276 | Michael Hanselmann | class PidFileLockError(LockError): |
57 | b6522276 | Michael Hanselmann | """PID file is already locked by another process.
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58 | b6522276 | Michael Hanselmann |
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59 | b6522276 | Michael Hanselmann | """
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60 | b6522276 | Michael Hanselmann | |
61 | b6522276 | Michael Hanselmann | |
62 | a8083063 | Iustin Pop | class HypervisorError(GenericError): |
63 | a8083063 | Iustin Pop | """Hypervisor-related exception.
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64 | a8083063 | Iustin Pop |
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65 | a8083063 | Iustin Pop | This is raised in case we can't communicate with the hypervisor
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66 | a8083063 | Iustin Pop | properly.
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67 | a8083063 | Iustin Pop |
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68 | a8083063 | Iustin Pop | """
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69 | a8083063 | Iustin Pop | |
70 | a8083063 | Iustin Pop | |
71 | 0fe22ad2 | Dimitris Aragiorgis | class HotplugError(HypervisorError): |
72 | 0fe22ad2 | Dimitris Aragiorgis | """Hotplug-related exception.
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73 | 0fe22ad2 | Dimitris Aragiorgis |
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74 | 0fe22ad2 | Dimitris Aragiorgis | This is raised in case a hotplug action fails or is not supported.
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75 | 0fe22ad2 | Dimitris Aragiorgis | It is currently used only by KVM hypervisor.
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76 | 0fe22ad2 | Dimitris Aragiorgis |
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77 | 0fe22ad2 | Dimitris Aragiorgis | """
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78 | 0fe22ad2 | Dimitris Aragiorgis | |
79 | 0fe22ad2 | Dimitris Aragiorgis | |
80 | a8083063 | Iustin Pop | class ProgrammerError(GenericError): |
81 | a8083063 | Iustin Pop | """Programming-related error.
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82 | a8083063 | Iustin Pop |
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83 | a8083063 | Iustin Pop | This is raised in cases we determine that the calling conventions
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84 | a8083063 | Iustin Pop | have been violated, meaning we got some desynchronisation between
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85 | a8083063 | Iustin Pop | parts of our code. It signifies a real programming bug.
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86 | a8083063 | Iustin Pop |
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87 | a8083063 | Iustin Pop | """
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88 | a8083063 | Iustin Pop | |
89 | a8083063 | Iustin Pop | |
90 | a8083063 | Iustin Pop | class BlockDeviceError(GenericError): |
91 | a8083063 | Iustin Pop | """Block-device related exception.
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92 | a8083063 | Iustin Pop |
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93 | a8083063 | Iustin Pop | This is raised in case we can't setup the instance's block devices
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94 | a8083063 | Iustin Pop | properly.
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95 | a8083063 | Iustin Pop |
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96 | a8083063 | Iustin Pop | """
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97 | a8083063 | Iustin Pop | |
98 | a8083063 | Iustin Pop | |
99 | a8083063 | Iustin Pop | class ConfigurationError(GenericError): |
100 | a8083063 | Iustin Pop | """Configuration related exception.
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101 | a8083063 | Iustin Pop |
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102 | a8083063 | Iustin Pop | Things like having an instance with a primary node that doesn't
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103 | a8083063 | Iustin Pop | exist in the config or such raise this exception.
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104 | a8083063 | Iustin Pop |
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105 | a8083063 | Iustin Pop | """
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106 | a8083063 | Iustin Pop | |
107 | a8083063 | Iustin Pop | |
108 | 4b63dc7a | Iustin Pop | class ConfigVersionMismatch(ConfigurationError): |
109 | 4b63dc7a | Iustin Pop | """Version mismatch in the configuration file.
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110 | 4b63dc7a | Iustin Pop |
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111 | 4b63dc7a | Iustin Pop | The error has two arguments: the expected and the actual found
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112 | 4b63dc7a | Iustin Pop | version.
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113 | 4b63dc7a | Iustin Pop |
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114 | 4b63dc7a | Iustin Pop | """
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115 | 4b63dc7a | Iustin Pop | |
116 | 4b63dc7a | Iustin Pop | |
117 | 1de1cf25 | Apollon Oikonomopoulos | class AddressPoolError(GenericError): |
118 | 1de1cf25 | Apollon Oikonomopoulos | """Errors related to IP address pools.
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119 | 1de1cf25 | Apollon Oikonomopoulos |
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120 | 1de1cf25 | Apollon Oikonomopoulos | """
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121 | 1de1cf25 | Apollon Oikonomopoulos | |
122 | 1de1cf25 | Apollon Oikonomopoulos | |
123 | 2c8a5690 | Guido Trotter | class ReservationError(GenericError): |
124 | 2c8a5690 | Guido Trotter | """Errors reserving a resource.
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125 | 2c8a5690 | Guido Trotter |
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126 | 2c8a5690 | Guido Trotter | """
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127 | 2c8a5690 | Guido Trotter | |
128 | 2c8a5690 | Guido Trotter | |
129 | a8083063 | Iustin Pop | class RemoteError(GenericError): |
130 | a8083063 | Iustin Pop | """Programming-related error on remote call.
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131 | a8083063 | Iustin Pop |
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132 | a8083063 | Iustin Pop | This is raised when an unhandled error occurs in a call to a
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133 | a8083063 | Iustin Pop | remote node. It usually signifies a real programming bug.
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134 | a8083063 | Iustin Pop |
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135 | a8083063 | Iustin Pop | """
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136 | a8083063 | Iustin Pop | |
137 | a8083063 | Iustin Pop | |
138 | f4a2f532 | Guido Trotter | class SignatureError(GenericError): |
139 | f4a2f532 | Guido Trotter | """Error authenticating a remote message.
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140 | f4a2f532 | Guido Trotter |
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141 | f4a2f532 | Guido Trotter | This is raised when the hmac signature on a message doesn't verify correctly
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142 | f4a2f532 | Guido Trotter | to the message itself. It can happen because of network unreliability or
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143 | f4a2f532 | Guido Trotter | because of spurious traffic.
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144 | f4a2f532 | Guido Trotter |
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145 | f4a2f532 | Guido Trotter | """
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146 | f4a2f532 | Guido Trotter | |
147 | f4a2f532 | Guido Trotter | |
148 | a8083063 | Iustin Pop | class ParameterError(GenericError): |
149 | a8083063 | Iustin Pop | """A passed parameter to a command is invalid.
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150 | a8083063 | Iustin Pop |
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151 | a8083063 | Iustin Pop | This is raised when the parameter passed to a request function is
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152 | a8083063 | Iustin Pop | invalid. Correct code should have verified this before passing the
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153 | a8083063 | Iustin Pop | request structure.
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154 | a8083063 | Iustin Pop |
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155 | a8083063 | Iustin Pop | The argument to this exception should be the parameter name.
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156 | a8083063 | Iustin Pop |
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157 | a8083063 | Iustin Pop | """
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158 | a8083063 | Iustin Pop | |
159 | a8083063 | Iustin Pop | |
160 | 776b6291 | Renรฉ Nussbaumer | class ResultValidationError(GenericError): |
161 | 776b6291 | Renรฉ Nussbaumer | """The iallocation results fails validation.
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162 | 776b6291 | Renรฉ Nussbaumer |
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163 | 776b6291 | Renรฉ Nussbaumer | """
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164 | 776b6291 | Renรฉ Nussbaumer | |
165 | 776b6291 | Renรฉ Nussbaumer | |
166 | a8083063 | Iustin Pop | class OpPrereqError(GenericError): |
167 | a8083063 | Iustin Pop | """Prerequisites for the OpCode are not fulfilled.
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168 | a8083063 | Iustin Pop |
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169 | 86a24969 | Dato Simรณ | This exception has two arguments: an error message, and one of the
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170 | 5c983ee5 | Iustin Pop | ECODE_* codes.
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171 | 5c983ee5 | Iustin Pop |
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172 | a8083063 | Iustin Pop | """
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173 | a8083063 | Iustin Pop | |
174 | 098c0958 | Michael Hanselmann | |
175 | a8083063 | Iustin Pop | class OpExecError(GenericError): |
176 | a8083063 | Iustin Pop | """Error during OpCode execution.
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177 | a8083063 | Iustin Pop |
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178 | a8083063 | Iustin Pop | """
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179 | a8083063 | Iustin Pop | |
180 | 098c0958 | Michael Hanselmann | |
181 | 1ce03fb1 | Michael Hanselmann | class OpResultError(GenericError): |
182 | 1ce03fb1 | Michael Hanselmann | """Issue with OpCode result.
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183 | 1ce03fb1 | Michael Hanselmann |
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184 | 1ce03fb1 | Michael Hanselmann | """
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185 | 1ce03fb1 | Michael Hanselmann | |
186 | 1ce03fb1 | Michael Hanselmann | |
187 | 9b221ea4 | Michele Tartara | class DeviceCreationError(GenericError): |
188 | 9b221ea4 | Michele Tartara | """Error during the creation of a device.
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189 | 9b221ea4 | Michele Tartara |
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190 | 9b221ea4 | Michele Tartara | This exception should contain the list of the devices actually created
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191 | 9b221ea4 | Michele Tartara | up to now, in the form of pairs (node, device)
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192 | 9b221ea4 | Michele Tartara |
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193 | 9b221ea4 | Michele Tartara | """
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194 | 9b221ea4 | Michele Tartara | def __init__(self, message, created_devices): |
195 | 9b221ea4 | Michele Tartara | GenericError.__init__(self)
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196 | 9b221ea4 | Michele Tartara | self.message = message
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197 | 9b221ea4 | Michele Tartara | self.created_devices = created_devices
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198 | 9b221ea4 | Michele Tartara | |
199 | 9b221ea4 | Michele Tartara | def __str__(self): |
200 | 9b221ea4 | Michele Tartara | return self.message |
201 | 9b221ea4 | Michele Tartara | |
202 | 9b221ea4 | Michele Tartara | |
203 | a8083063 | Iustin Pop | class OpCodeUnknown(GenericError): |
204 | a8083063 | Iustin Pop | """Unknown opcode submitted.
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205 | a8083063 | Iustin Pop |
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206 | a8083063 | Iustin Pop | This signifies a mismatch between the definitions on the client and
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207 | a8083063 | Iustin Pop | server side.
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208 | a8083063 | Iustin Pop |
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209 | a8083063 | Iustin Pop | """
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210 | a8083063 | Iustin Pop | |
211 | 098c0958 | Michael Hanselmann | |
212 | 685ee993 | Iustin Pop | class JobLost(GenericError): |
213 | 685ee993 | Iustin Pop | """Submitted job lost.
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214 | 685ee993 | Iustin Pop |
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215 | 685ee993 | Iustin Pop | The job was submitted but it cannot be found in the current job
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216 | 685ee993 | Iustin Pop | list.
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217 | 685ee993 | Iustin Pop |
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218 | 685ee993 | Iustin Pop | """
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219 | 685ee993 | Iustin Pop | |
220 | 685ee993 | Iustin Pop | |
221 | 3d6c5566 | Guido Trotter | class JobFileCorrupted(GenericError): |
222 | 3d6c5566 | Guido Trotter | """Job file could not be properly decoded/restored.
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223 | 3d6c5566 | Guido Trotter |
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224 | 3d6c5566 | Guido Trotter | """
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225 | 3d6c5566 | Guido Trotter | |
226 | 3d6c5566 | Guido Trotter | |
227 | 89e1fc26 | Iustin Pop | class ResolverError(GenericError): |
228 | 89e1fc26 | Iustin Pop | """Host name cannot be resolved.
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229 | 89e1fc26 | Iustin Pop |
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230 | 89e1fc26 | Iustin Pop | This is not a normal situation for Ganeti, as we rely on having a
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231 | 89e1fc26 | Iustin Pop | working resolver.
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232 | 89e1fc26 | Iustin Pop |
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233 | 89e1fc26 | Iustin Pop | The non-resolvable hostname is available as the first element of the
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234 | 89e1fc26 | Iustin Pop | args tuple; the other two elements of the tuple are the first two
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235 | 89e1fc26 | Iustin Pop | args of the socket.gaierror exception (error code and description).
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236 | 89e1fc26 | Iustin Pop |
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237 | 89e1fc26 | Iustin Pop | """
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238 | 89e1fc26 | Iustin Pop | |
239 | 89e1fc26 | Iustin Pop | |
240 | a8083063 | Iustin Pop | class HooksFailure(GenericError): |
241 | a8083063 | Iustin Pop | """A generic hook failure.
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242 | a8083063 | Iustin Pop |
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243 | a8083063 | Iustin Pop | This signifies usually a setup misconfiguration.
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244 | a8083063 | Iustin Pop |
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245 | a8083063 | Iustin Pop | """
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246 | a8083063 | Iustin Pop | |
247 | 098c0958 | Michael Hanselmann | |
248 | a8083063 | Iustin Pop | class HooksAbort(HooksFailure): |
249 | a8083063 | Iustin Pop | """A required hook has failed.
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250 | a8083063 | Iustin Pop |
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251 | a8083063 | Iustin Pop | This caused an abort of the operation in the initial phase. This
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252 | a8083063 | Iustin Pop | exception always has an attribute args which is a list of tuples of:
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253 | a8083063 | Iustin Pop | - node: the source node on which this hooks has failed
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254 | a8083063 | Iustin Pop | - script: the name of the script which aborted the run
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255 | a8083063 | Iustin Pop |
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256 | a8083063 | Iustin Pop | """
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257 | a8083063 | Iustin Pop | |
258 | 098c0958 | Michael Hanselmann | |
259 | a8083063 | Iustin Pop | class UnitParseError(GenericError): |
260 | a8083063 | Iustin Pop | """Unable to parse size unit.
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261 | a8083063 | Iustin Pop |
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262 | a8083063 | Iustin Pop | """
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263 | a8083063 | Iustin Pop | |
264 | ac2d0fe4 | Michael Hanselmann | |
265 | 31155d60 | Balazs Lecz | class ParseError(GenericError): |
266 | 31155d60 | Balazs Lecz | """Generic parse error.
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267 | 31155d60 | Balazs Lecz |
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268 | 31155d60 | Balazs Lecz | Raised when unable to parse user input.
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269 | 31155d60 | Balazs Lecz |
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270 | 31155d60 | Balazs Lecz | """
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271 | 31155d60 | Balazs Lecz | |
272 | 31155d60 | Balazs Lecz | |
273 | a5728081 | Guido Trotter | class TypeEnforcementError(GenericError): |
274 | a5728081 | Guido Trotter | """Unable to enforce data type.
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275 | a5728081 | Guido Trotter |
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276 | a5728081 | Guido Trotter | """
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277 | a8083063 | Iustin Pop | |
278 | ac2d0fe4 | Michael Hanselmann | |
279 | b6267745 | Andrea Spadaccini | class X509CertError(GenericError): |
280 | b6267745 | Andrea Spadaccini | """Invalid X509 certificate.
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281 | b6267745 | Andrea Spadaccini |
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282 | b6267745 | Andrea Spadaccini | This error has two arguments: the certificate filename and the error cause.
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283 | b6267745 | Andrea Spadaccini |
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284 | b6267745 | Andrea Spadaccini | """
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285 | b6267745 | Andrea Spadaccini | |
286 | b6267745 | Andrea Spadaccini | |
287 | 5c947f38 | Iustin Pop | class TagError(GenericError): |
288 | 5c947f38 | Iustin Pop | """Generic tag error.
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289 | 5c947f38 | Iustin Pop |
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290 | 5c947f38 | Iustin Pop | The argument to this exception will show the exact error.
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291 | 5c947f38 | Iustin Pop |
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292 | 5c947f38 | Iustin Pop | """
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293 | 7bca53e4 | Michael Hanselmann | |
294 | 7bca53e4 | Michael Hanselmann | |
295 | 7bca53e4 | Michael Hanselmann | class CommandError(GenericError): |
296 | 7bca53e4 | Michael Hanselmann | """External command error.
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297 | 7bca53e4 | Michael Hanselmann |
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298 | 7bca53e4 | Michael Hanselmann | """
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299 | e50bdd68 | Guido Trotter | |
300 | e50bdd68 | Guido Trotter | |
301 | ac2d0fe4 | Michael Hanselmann | class StorageError(GenericError): |
302 | ac2d0fe4 | Michael Hanselmann | """Storage-related exception.
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303 | ac2d0fe4 | Michael Hanselmann |
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304 | ac2d0fe4 | Michael Hanselmann | """
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305 | ac2d0fe4 | Michael Hanselmann | |
306 | 589dee9a | Guido Trotter | |
307 | 589dee9a | Guido Trotter | class InotifyError(GenericError): |
308 | 589dee9a | Guido Trotter | """Error raised when there is a failure setting up an inotify watcher.
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309 | 589dee9a | Guido Trotter |
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310 | 589dee9a | Guido Trotter | """
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311 | 589dee9a | Guido Trotter | |
312 | ac2d0fe4 | Michael Hanselmann | |
313 | e50bdd68 | Guido Trotter | class QuitGanetiException(Exception): |
314 | 7e975535 | Stephen Shirley | """Signal Ganeti that it must quit.
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315 | e50bdd68 | Guido Trotter |
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316 | 0623d351 | Iustin Pop | This is not necessarily an error (and thus not a subclass of
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317 | 0623d351 | Iustin Pop | GenericError), but it's an exceptional circumstance and it is thus
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318 | 300e5450 | Michael Hanselmann | treated. This exception should be instantiated with two values. The
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319 | 0623d351 | Iustin Pop | first one will specify the return code to the caller, and the second
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320 | 0623d351 | Iustin Pop | one will be the returned result (either as an error or as a normal
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321 | 0623d351 | Iustin Pop | result). Usually only the leave cluster rpc call should return
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322 | 0623d351 | Iustin Pop | status True (as there it's expected we quit), every other call will
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323 | 0623d351 | Iustin Pop | return status False (as a critical error was encountered).
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324 | e50bdd68 | Guido Trotter |
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325 | c41eea6e | Iustin Pop | Examples::
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326 | c41eea6e | Iustin Pop |
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327 | e50bdd68 | Guido Trotter | # Return a result of "True" to the caller, but quit ganeti afterwards
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328 | 0623d351 | Iustin Pop | raise QuitGanetiException(True, None)
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329 | e50bdd68 | Guido Trotter | # Send an error to the caller, and quit ganeti
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330 | 0623d351 | Iustin Pop | raise QuitGanetiException(False, "Fatal safety violation, shutting down")
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331 | e50bdd68 | Guido Trotter |
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332 | e50bdd68 | Guido Trotter | """
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333 | e50bdd68 | Guido Trotter | |
334 | f1da30e6 | Michael Hanselmann | |
335 | d11bda8d | Iustin Pop | class JobQueueError(GenericError): |
336 | f1da30e6 | Michael Hanselmann | """Job queue error.
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337 | f1da30e6 | Michael Hanselmann |
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338 | f1da30e6 | Michael Hanselmann | """
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339 | 6797ec29 | Iustin Pop | |
340 | 6797ec29 | Iustin Pop | |
341 | 686d7433 | Iustin Pop | class JobQueueDrainError(JobQueueError): |
342 | 686d7433 | Iustin Pop | """Job queue is marked for drain error.
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343 | 686d7433 | Iustin Pop |
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344 | 686d7433 | Iustin Pop | This is raised when a job submission attempt is made but the queue
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345 | 686d7433 | Iustin Pop | is marked for drain.
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346 | 686d7433 | Iustin Pop |
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347 | 686d7433 | Iustin Pop | """
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348 | 686d7433 | Iustin Pop | |
349 | 686d7433 | Iustin Pop | |
350 | f87b405e | Michael Hanselmann | class JobQueueFull(JobQueueError): |
351 | f87b405e | Michael Hanselmann | """Job queue full error.
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352 | f87b405e | Michael Hanselmann |
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353 | f87b405e | Michael Hanselmann | Raised when job queue size reached its hard limit.
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354 | f87b405e | Michael Hanselmann |
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355 | f87b405e | Michael Hanselmann | """
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356 | f87b405e | Michael Hanselmann | |
357 | f87b405e | Michael Hanselmann | |
358 | 9748ab35 | Guido Trotter | class ConfdMagicError(GenericError): |
359 | 9748ab35 | Guido Trotter | """A magic fourcc error in Ganeti confd.
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360 | 9748ab35 | Guido Trotter |
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361 | 9748ab35 | Guido Trotter | Errors processing the fourcc in ganeti confd datagrams.
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362 | 9748ab35 | Guido Trotter |
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363 | 9748ab35 | Guido Trotter | """
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364 | 9748ab35 | Guido Trotter | |
365 | 9748ab35 | Guido Trotter | |
366 | e4ccf6cd | Guido Trotter | class ConfdClientError(GenericError): |
367 | e4ccf6cd | Guido Trotter | """A magic fourcc error in Ganeti confd.
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368 | e4ccf6cd | Guido Trotter |
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369 | e4ccf6cd | Guido Trotter | Errors in the confd client library.
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370 | e4ccf6cd | Guido Trotter |
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371 | e4ccf6cd | Guido Trotter | """
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372 | e4ccf6cd | Guido Trotter | |
373 | e4ccf6cd | Guido Trotter | |
374 | c8eded0b | Guido Trotter | class UdpDataSizeError(GenericError): |
375 | c8eded0b | Guido Trotter | """UDP payload too big.
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376 | c8eded0b | Guido Trotter |
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377 | c8eded0b | Guido Trotter | """
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378 | c8eded0b | Guido Trotter | |
379 | c8eded0b | Guido Trotter | |
380 | 4c32a8bd | Luca Bigliardi | class NoCtypesError(GenericError): |
381 | 4c32a8bd | Luca Bigliardi | """python ctypes module is not found in the system.
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382 | 4c32a8bd | Luca Bigliardi |
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383 | 4c32a8bd | Luca Bigliardi | """
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384 | 4c32a8bd | Luca Bigliardi | |
385 | 4c32a8bd | Luca Bigliardi | |
386 | 8b312c1d | Manuel Franceschini | class IPAddressError(GenericError): |
387 | 8b312c1d | Manuel Franceschini | """Generic IP address error.
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388 | 8b312c1d | Manuel Franceschini |
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389 | 8b312c1d | Manuel Franceschini | """
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390 | 8b312c1d | Manuel Franceschini | |
391 | 8b312c1d | Manuel Franceschini | |
392 | 7a8bda3f | Michael Hanselmann | class LuxiError(GenericError): |
393 | 7a8bda3f | Michael Hanselmann | """LUXI error.
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394 | 7a8bda3f | Michael Hanselmann |
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395 | 7a8bda3f | Michael Hanselmann | """
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396 | 7a8bda3f | Michael Hanselmann | |
397 | 7a8bda3f | Michael Hanselmann | |
398 | 7578ab0a | Michael Hanselmann | class QueryFilterParseError(ParseError): |
399 | 7578ab0a | Michael Hanselmann | """Error while parsing query filter.
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400 | 7578ab0a | Michael Hanselmann |
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401 | 300e5450 | Michael Hanselmann | This exception must be instantiated with two values. The first one is a
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402 | 300e5450 | Michael Hanselmann | string with an error description, the second one is an instance of a subclass
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403 | 300e5450 | Michael Hanselmann | of C{pyparsing.ParseBaseException} (used to display the exact error
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404 | 300e5450 | Michael Hanselmann | location).
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405 | 300e5450 | Michael Hanselmann |
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406 | 7578ab0a | Michael Hanselmann | """
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407 | 7578ab0a | Michael Hanselmann | def GetDetails(self): |
408 | 7578ab0a | Michael Hanselmann | """Returns a list of strings with details about the error.
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409 | 7578ab0a | Michael Hanselmann |
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410 | 7578ab0a | Michael Hanselmann | """
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411 | 7578ab0a | Michael Hanselmann | try:
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412 | 7578ab0a | Michael Hanselmann | (_, inner) = self.args
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413 | 7578ab0a | Michael Hanselmann | except IndexError: |
414 | 7578ab0a | Michael Hanselmann | return None |
415 | 7578ab0a | Michael Hanselmann | |
416 | 7578ab0a | Michael Hanselmann | return [str(inner.line), |
417 | 7578ab0a | Michael Hanselmann | (" " * (inner.column - 1)) + "^", |
418 | 7578ab0a | Michael Hanselmann | str(inner)]
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419 | 7578ab0a | Michael Hanselmann | |
420 | 7578ab0a | Michael Hanselmann | |
421 | 352e1a26 | Michael Hanselmann | class RapiTestResult(GenericError): |
422 | 352e1a26 | Michael Hanselmann | """Exception containing results from RAPI test utilities.
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423 | 352e1a26 | Michael Hanselmann |
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424 | 352e1a26 | Michael Hanselmann | """
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425 | 352e1a26 | Michael Hanselmann | |
426 | 352e1a26 | Michael Hanselmann | |
427 | fbdac0d9 | Michael Hanselmann | class FileStoragePathError(GenericError): |
428 | fbdac0d9 | Michael Hanselmann | """Error from file storage path validation.
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429 | fbdac0d9 | Michael Hanselmann |
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430 | fbdac0d9 | Michael Hanselmann | """
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431 | fbdac0d9 | Michael Hanselmann | |
432 | fbdac0d9 | Michael Hanselmann | |
433 | 6797ec29 | Iustin Pop | # errors should be added above
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434 | 6797ec29 | Iustin Pop | |
435 | 6797ec29 | Iustin Pop | |
436 | 6797ec29 | Iustin Pop | def GetErrorClass(name): |
437 | 6797ec29 | Iustin Pop | """Return the class of an exception.
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438 | 6797ec29 | Iustin Pop |
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439 | 6797ec29 | Iustin Pop | Given the class name, return the class itself.
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440 | 6797ec29 | Iustin Pop |
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441 | 6797ec29 | Iustin Pop | @type name: str
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442 | 6797ec29 | Iustin Pop | @param name: the exception name
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443 | 6797ec29 | Iustin Pop | @rtype: class
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444 | 6797ec29 | Iustin Pop | @return: the actual class, or None if not found
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445 | 6797ec29 | Iustin Pop |
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446 | 6797ec29 | Iustin Pop | """
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447 | 6797ec29 | Iustin Pop | item = globals().get(name, None) |
448 | 6797ec29 | Iustin Pop | if item is not None: |
449 | 6797ec29 | Iustin Pop | if not (isinstance(item, type(Exception)) and |
450 | 6797ec29 | Iustin Pop | issubclass(item, GenericError)):
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451 | 6797ec29 | Iustin Pop | item = None
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452 | 6797ec29 | Iustin Pop | return item
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453 | 6956e9cd | Iustin Pop | |
454 | 6956e9cd | Iustin Pop | |
455 | 6956e9cd | Iustin Pop | def EncodeException(err): |
456 | 6956e9cd | Iustin Pop | """Encodes an exception into a format that L{MaybeRaise} will recognise.
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457 | 6956e9cd | Iustin Pop |
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458 | 6956e9cd | Iustin Pop | The passed L{err} argument will be formatted as a tuple (exception
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459 | 6956e9cd | Iustin Pop | name, arguments) that the MaybeRaise function will recognise.
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460 | 6956e9cd | Iustin Pop |
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461 | 6956e9cd | Iustin Pop | @type err: GenericError child
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462 | 6956e9cd | Iustin Pop | @param err: usually a child of GenericError (but any exception
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463 | 6956e9cd | Iustin Pop | will be accepted)
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464 | 6956e9cd | Iustin Pop | @rtype: tuple
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465 | 6956e9cd | Iustin Pop | @return: tuple of (exception name, exception arguments)
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466 | 6956e9cd | Iustin Pop |
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467 | 6956e9cd | Iustin Pop | """
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468 | 6956e9cd | Iustin Pop | return (err.__class__.__name__, err.args)
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469 | 6956e9cd | Iustin Pop | |
470 | 6956e9cd | Iustin Pop | |
471 | 84f790e6 | Michael Hanselmann | def GetEncodedError(result): |
472 | 84f790e6 | Michael Hanselmann | """If this looks like an encoded Ganeti exception, return it.
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473 | 6956e9cd | Iustin Pop |
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474 | 6956e9cd | Iustin Pop | This function tries to parse the passed argument and if it looks
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475 | 84f790e6 | Michael Hanselmann | like an encoding done by EncodeException, it will return the class
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476 | 84f790e6 | Michael Hanselmann | object and arguments.
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477 | 6956e9cd | Iustin Pop |
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478 | 6956e9cd | Iustin Pop | """
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479 | 6956e9cd | Iustin Pop | tlt = (tuple, list) |
480 | 6956e9cd | Iustin Pop | if (isinstance(result, tlt) and len(result) == 2 and |
481 | 6956e9cd | Iustin Pop | isinstance(result[1], tlt)): |
482 | 6956e9cd | Iustin Pop | # custom ganeti errors
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483 | 84f790e6 | Michael Hanselmann | errcls = GetErrorClass(result[0])
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484 | 84f790e6 | Michael Hanselmann | if errcls:
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485 | 84f790e6 | Michael Hanselmann | return (errcls, tuple(result[1])) |
486 | 84f790e6 | Michael Hanselmann | |
487 | 84f790e6 | Michael Hanselmann | return None |
488 | 84f790e6 | Michael Hanselmann | |
489 | 84f790e6 | Michael Hanselmann | |
490 | 84f790e6 | Michael Hanselmann | def MaybeRaise(result): |
491 | 84f790e6 | Michael Hanselmann | """If this looks like an encoded Ganeti exception, raise it.
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492 | 84f790e6 | Michael Hanselmann |
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493 | 84f790e6 | Michael Hanselmann | This function tries to parse the passed argument and if it looks
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494 | 84f790e6 | Michael Hanselmann | like an encoding done by EncodeException, it will re-raise it.
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495 | 84f790e6 | Michael Hanselmann |
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496 | 84f790e6 | Michael Hanselmann | """
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497 | 84f790e6 | Michael Hanselmann | error = GetEncodedError(result) |
498 | 84f790e6 | Michael Hanselmann | if error:
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499 | 84f790e6 | Michael Hanselmann | (errcls, args) = error |
500 | 98dfcaff | Iustin Pop | # pylint: disable=W0142
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501 | 98dfcaff | Iustin Pop | raise errcls(*args) |