Mercurial > libervia-pubsub
annotate idavoll/memory_storage.py @ 171:bc269696ef42
Reply with the correct error condition on subscription when not subscribed.
Author: ralphm.
Fixes #7.
| author | Ralph Meijer <ralphm@ik.nu> |
|---|---|
| date | Thu, 03 Jan 2008 13:10:25 +0000 |
| parents | ef22e4150caa |
| children | 246911bcb699 |
| rev | line source |
|---|---|
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1 # Copyright (c) 2003-2008 Ralph Meijer |
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2 # See LICENSE for details. |
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3 |
| 107 | 4 import copy |
| 5 from zope.interface import implements | |
| 6 from twisted.internet import defer | |
| 7 from twisted.words.protocols.jabber import jid | |
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8 |
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9 from idavoll import error, iidavoll |
| 107 | 10 |
| 115 | 11 default_config = {"pubsub#persist_items": True, |
| 12 "pubsub#deliver_payloads": True} | |
| 107 | 13 |
| 14 class Storage: | |
| 15 | |
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16 implements(iidavoll.IStorage) |
| 107 | 17 |
| 18 def __init__(self): | |
| 19 self._nodes = {} | |
| 20 | |
| 21 def get_node(self, node_id): | |
| 22 try: | |
| 23 node = self._nodes[node_id] | |
| 24 except KeyError: | |
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25 return defer.fail(error.NodeNotFound()) |
| 107 | 26 |
| 27 return defer.succeed(node) | |
| 28 | |
| 29 def get_node_ids(self): | |
| 30 return defer.succeed(self._nodes.keys()) | |
| 31 | |
| 32 def create_node(self, node_id, owner, config = None, type='leaf'): | |
| 33 if node_id in self._nodes: | |
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34 return defer.fail(error.NodeExists()) |
| 107 | 35 |
| 36 if not config: | |
| 37 config = copy.copy(default_config) | |
| 38 | |
| 39 if type != 'leaf': | |
| 40 raise NotImplementedError | |
| 41 | |
| 42 node = LeafNode(node_id, owner, config) | |
| 43 self._nodes[node_id] = node | |
| 44 | |
| 45 return defer.succeed(None) | |
| 46 | |
| 47 def delete_node(self, node_id): | |
| 48 try: | |
| 49 del self._nodes[node_id] | |
| 50 except KeyError: | |
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51 return defer.fail(error.NodeNotFound()) |
| 107 | 52 |
| 53 return defer.succeed(None) | |
| 54 | |
| 55 def get_affiliations(self, entity): | |
| 112 | 56 entity = entity.userhost() |
| 57 return defer.succeed([(node.id, node._affiliations[entity]) | |
| 107 | 58 for name, node in self._nodes.iteritems() |
| 112 | 59 if entity in node._affiliations]) |
| 107 | 60 |
| 61 def get_subscriptions(self, entity): | |
| 62 subscriptions = [] | |
| 63 for node in self._nodes.itervalues(): | |
| 64 for subscriber, subscription in node._subscriptions.iteritems(): | |
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65 subscriber = jid.internJID(subscriber) |
| 112 | 66 if subscriber.userhostJID() == entity.userhostJID(): |
| 107 | 67 subscriptions.append((node.id, subscriber, |
| 68 subscription.state)) | |
| 69 | |
| 70 return defer.succeed(subscriptions) | |
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71 |
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72 |
| 107 | 73 class Node: |
| 74 | |
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75 implements(iidavoll.INode) |
| 107 | 76 |
| 77 def __init__(self, node_id, owner, config): | |
| 78 self.id = node_id | |
| 112 | 79 self._affiliations = {owner.userhost(): 'owner'} |
| 107 | 80 self._subscriptions = {} |
| 81 self._config = config | |
| 82 | |
| 83 def get_type(self): | |
| 84 return self.type | |
| 85 | |
| 86 def get_configuration(self): | |
| 87 return self._config | |
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88 |
| 107 | 89 def get_meta_data(self): |
| 90 config = copy.copy(self._config) | |
| 91 config["pubsub#node_type"] = self.type | |
| 92 return config | |
| 93 | |
| 94 def set_configuration(self, options): | |
| 95 for option in options: | |
| 96 if option in self._config: | |
| 97 self._config[option] = options[option] | |
| 98 | |
| 99 return defer.succeed(None) | |
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100 |
| 107 | 101 def get_affiliation(self, entity): |
| 102 return defer.succeed(self._affiliations.get(entity.full())) | |
| 103 | |
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104 def get_subscription(self, subscriber): |
| 107 | 105 try: |
| 106 subscription = self._subscriptions[subscriber.full()] | |
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107 except KeyError: |
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108 state = None |
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109 else: |
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110 state = subscription.state |
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111 return defer.succeed(state) |
| 107 | 112 |
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113 def add_subscription(self, subscriber, state): |
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114 if self._subscriptions.get(subscriber.full()): |
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115 return defer.fail(error.SubscriptionExists()) |
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116 |
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117 subscription = Subscription(state) |
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118 self._subscriptions[subscriber.full()] = subscription |
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119 return defer.succeed(None) |
| 107 | 120 |
| 121 def remove_subscription(self, subscriber): | |
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122 try: |
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123 del self._subscriptions[subscriber.full()] |
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124 except KeyError: |
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125 return defer.fail(error.NotSubscribed()) |
| 107 | 126 |
| 127 return defer.succeed(None) | |
| 128 | |
| 129 def get_subscribers(self): | |
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130 subscribers = [jid.internJID(subscriber) for subscriber, subscription |
| 107 | 131 in self._subscriptions.iteritems() |
| 132 if subscription.state == 'subscribed'] | |
| 133 | |
| 134 return defer.succeed(subscribers) | |
| 135 | |
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136 def is_subscribed(self, entity): |
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137 for subscriber, subscription in self._subscriptions.iteritems(): |
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138 if jid.internJID(subscriber).userhost() == entity.userhost() and \ |
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139 subscription.state == 'subscribed': |
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140 return defer.succeed(True) |
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141 |
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142 return defer.succeed(False) |
| 107 | 143 |
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144 def get_affiliations(self): |
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145 affiliations = [(jid.internJID(entity), affiliation) for entity, affiliation |
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146 in self._affiliations.iteritems()] |
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147 |
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148 return defer.succeed(affiliations) |
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149 |
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150 |
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151 class LeafNodeMixin: |
| 107 | 152 |
| 153 type = 'leaf' | |
| 154 | |
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155 def __init__(self): |
| 107 | 156 self._items = {} |
| 157 self._itemlist = [] | |
| 158 | |
| 159 def store_items(self, items, publisher): | |
| 160 for data in items: | |
| 161 id = data["id"] | |
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162 data = data.toXml() |
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163 if isinstance(data, str): |
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164 data = data.decode('utf-8') |
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165 item = (data, publisher) |
| 107 | 166 if id in self._items: |
| 167 self._itemlist.remove(self._items[id]) | |
| 168 self._items[id] = item | |
| 169 self._itemlist.append(item) | |
| 170 | |
| 171 return defer.succeed(None) | |
| 172 | |
| 173 def remove_items(self, item_ids): | |
| 174 deleted = [] | |
| 175 | |
| 176 for item_id in item_ids: | |
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177 try: |
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178 item = self._items[item_id] |
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179 except KeyError: |
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180 pass |
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181 else: |
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182 self._itemlist.remove(item) |
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183 del self._items[item_id] |
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184 deleted.append(item_id) |
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185 |
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186 return defer.succeed(deleted) |
| 107 | 187 |
| 188 def get_items(self, max_items=None): | |
| 189 if max_items: | |
| 190 list = self._itemlist[-max_items:] | |
| 191 else: | |
| 192 list = self._itemlist | |
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193 return defer.succeed([item[0] for item in list]) |
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194 |
| 107 | 195 def get_items_by_id(self, item_ids): |
| 196 items = [] | |
| 197 for item_id in item_ids: | |
| 198 try: | |
| 199 item = self._items[item_id] | |
| 200 except KeyError: | |
| 201 pass | |
| 202 else: | |
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203 items.append(item[0]) |
| 107 | 204 return defer.succeed(items) |
| 205 | |
| 206 def purge(self): | |
| 207 self._items = {} | |
| 208 self._itemlist = [] | |
| 209 | |
| 210 return defer.succeed(None) | |
| 211 | |
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212 |
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213 class LeafNode(Node, LeafNodeMixin): |
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214 |
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215 implements(iidavoll.ILeafNode) |
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216 |
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217 def __init__(self, node_id, owner, config): |
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218 Node.__init__(self, node_id, owner, config) |
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219 LeafNodeMixin.__init__(self) |
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220 |
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221 |
| 107 | 222 class Subscription: |
| 223 | |
| 224 def __init__(self, state): | |
| 225 self.state = state |