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| 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "dbus/object_manager.h" |
| 6 |
| 7 #include "base/bind.h" |
| 8 #include "base/logging.h" |
| 9 #include "dbus/bus.h" |
| 10 #include "dbus/message.h" |
| 11 #include "dbus/object_proxy.h" |
| 12 #include "dbus/property.h" |
| 13 |
| 14 namespace dbus { |
| 15 |
| 16 ObjectManager::Object::Object() |
| 17 : object_proxy(NULL) { |
| 18 } |
| 19 |
| 20 ObjectManager::Object::~Object() { |
| 21 } |
| 22 |
| 23 ObjectManager::ObjectManager(Bus* bus, |
| 24 const std::string& service_name, |
| 25 const ObjectPath& object_path) |
| 26 : bus_(bus), |
| 27 service_name_(service_name), |
| 28 object_path_(object_path), |
| 29 weak_ptr_factory_(this) { |
| 30 DVLOG(1) << "Creating ObjectManager for " << service_name_ |
| 31 << " " << object_path_.value(); |
| 32 |
| 33 DCHECK(bus_); |
| 34 object_proxy_ = bus_->GetObjectProxy(service_name_, object_path_); |
| 35 |
| 36 object_proxy_->ConnectToSignal( |
| 37 kObjectManagerInterface, |
| 38 kObjectManagerInterfacesAdded, |
| 39 base::Bind(&ObjectManager::InterfacesAddedReceived, |
| 40 weak_ptr_factory_.GetWeakPtr()), |
| 41 base::Bind(&ObjectManager::InterfacesAddedConnected, |
| 42 weak_ptr_factory_.GetWeakPtr())); |
| 43 |
| 44 object_proxy_->ConnectToSignal( |
| 45 kObjectManagerInterface, |
| 46 kObjectManagerInterfacesRemoved, |
| 47 base::Bind(&ObjectManager::InterfacesRemovedReceived, |
| 48 weak_ptr_factory_.GetWeakPtr()), |
| 49 base::Bind(&ObjectManager::InterfacesRemovedConnected, |
| 50 weak_ptr_factory_.GetWeakPtr())); |
| 51 |
| 52 GetManagedObjects(); |
| 53 } |
| 54 |
| 55 ObjectManager::~ObjectManager() { |
| 56 // Clean up Object structures |
| 57 for (ObjectMap::iterator iter = object_map_.begin(); |
| 58 iter != object_map_.end(); ++iter) { |
| 59 Object* object = iter->second; |
| 60 |
| 61 for (Object::PropertiesMap::iterator piter = object->properties_map.begin(); |
| 62 piter != object->properties_map.end(); ++piter) { |
| 63 PropertySet* properties = piter->second; |
| 64 delete properties; |
| 65 } |
| 66 |
| 67 delete object; |
| 68 } |
| 69 } |
| 70 |
| 71 void ObjectManager::RegisterInterface(const std::string& interface_name, |
| 72 Interface* interface) { |
| 73 interface_map_[interface_name] = interface; |
| 74 } |
| 75 |
| 76 void ObjectManager::UnregisterInterface(const std::string& interface_name) { |
| 77 InterfaceMap::iterator iter = interface_map_.find(interface_name); |
| 78 if (iter != interface_map_.end()) |
| 79 interface_map_.erase(iter); |
| 80 } |
| 81 |
| 82 std::vector<ObjectPath> ObjectManager::GetObjects() { |
| 83 std::vector<ObjectPath> object_paths; |
| 84 |
| 85 for (ObjectMap::iterator iter = object_map_.begin(); |
| 86 iter != object_map_.end(); ++iter) |
| 87 object_paths.push_back(iter->first); |
| 88 |
| 89 return object_paths; |
| 90 } |
| 91 |
| 92 std::vector<ObjectPath> ObjectManager::GetObjectsWithInterface( |
| 93 const std::string& interface_name) { |
| 94 std::vector<ObjectPath> object_paths; |
| 95 |
| 96 for (ObjectMap::iterator oiter = object_map_.begin(); |
| 97 oiter != object_map_.end(); ++oiter) { |
| 98 Object* object = oiter->second; |
| 99 |
| 100 Object::PropertiesMap::iterator piter = |
| 101 object->properties_map.find(interface_name); |
| 102 if (piter != object->properties_map.end()) |
| 103 object_paths.push_back(oiter->first); |
| 104 } |
| 105 |
| 106 return object_paths; |
| 107 } |
| 108 |
| 109 ObjectProxy* ObjectManager::GetObjectProxy(const ObjectPath& object_path) { |
| 110 ObjectMap::iterator iter = object_map_.find(object_path); |
| 111 if (iter == object_map_.end()) |
| 112 return NULL; |
| 113 |
| 114 Object* object = iter->second; |
| 115 return object->object_proxy; |
| 116 } |
| 117 |
| 118 PropertySet* ObjectManager::GetProperties(const ObjectPath& object_path, |
| 119 const std::string& interface_name) { |
| 120 ObjectMap::iterator iter = object_map_.find(object_path); |
| 121 if (iter == object_map_.end()) |
| 122 return NULL; |
| 123 |
| 124 Object* object = iter->second; |
| 125 Object::PropertiesMap::iterator piter = |
| 126 object->properties_map.find(interface_name); |
| 127 if (piter == object->properties_map.end()) |
| 128 return NULL; |
| 129 |
| 130 return piter->second; |
| 131 } |
| 132 |
| 133 void ObjectManager::GetManagedObjects() { |
| 134 MethodCall method_call(kObjectManagerInterface, |
| 135 kObjectManagerGetManagedObjects); |
| 136 |
| 137 object_proxy_->CallMethod( |
| 138 &method_call, |
| 139 ObjectProxy::TIMEOUT_USE_DEFAULT, |
| 140 base::Bind(&ObjectManager::OnGetManagedObjects, |
| 141 weak_ptr_factory_.GetWeakPtr())); |
| 142 } |
| 143 |
| 144 void ObjectManager::OnGetManagedObjects(Response* response) { |
| 145 if (response != NULL) { |
| 146 MessageReader reader(response); |
| 147 MessageReader array_reader(NULL); |
| 148 if (!reader.PopArray(&array_reader)) |
| 149 return; |
| 150 |
| 151 while (array_reader.HasMoreData()) { |
| 152 MessageReader dict_entry_reader(NULL); |
| 153 ObjectPath object_path; |
| 154 if (!array_reader.PopDictEntry(&dict_entry_reader) || |
| 155 !dict_entry_reader.PopObjectPath(&object_path)) |
| 156 continue; |
| 157 |
| 158 UpdateObject(object_path, &dict_entry_reader); |
| 159 } |
| 160 |
| 161 } else { |
| 162 LOG(WARNING) << service_name_ << " " << object_path_.value() |
| 163 << ": Failed to get managed objects"; |
| 164 } |
| 165 } |
| 166 |
| 167 void ObjectManager::InterfacesAddedReceived(Signal* signal) { |
| 168 DCHECK(signal); |
| 169 MessageReader reader(signal); |
| 170 ObjectPath object_path; |
| 171 if (!reader.PopObjectPath(&object_path)) { |
| 172 LOG(WARNING) << service_name_ << " " << object_path_.value() |
| 173 << ": InterfacesAdded signal has incorrect parameters: " |
| 174 << signal->ToString(); |
| 175 return; |
| 176 } |
| 177 |
| 178 UpdateObject(object_path, &reader); |
| 179 } |
| 180 |
| 181 void ObjectManager::InterfacesAddedConnected(const std::string& interface_name, |
| 182 const std::string& signal_name, |
| 183 bool success) { |
| 184 LOG_IF(WARNING, !success) << service_name_ << " " << object_path_.value() |
| 185 << ": Failed to connect to InterfacesAdded signal."; |
| 186 } |
| 187 |
| 188 void ObjectManager::InterfacesRemovedReceived(Signal* signal) { |
| 189 DCHECK(signal); |
| 190 MessageReader reader(signal); |
| 191 ObjectPath object_path; |
| 192 std::vector<std::string> interface_names; |
| 193 if (!reader.PopObjectPath(&object_path) || |
| 194 !reader.PopArrayOfStrings(&interface_names)) { |
| 195 LOG(WARNING) << service_name_ << " " << object_path_.value() |
| 196 << ": InterfacesRemoved signal has incorrect parameters: " |
| 197 << signal->ToString(); |
| 198 return; |
| 199 } |
| 200 |
| 201 for (size_t i = 0; i < interface_names.size(); ++i) |
| 202 RemoveInterface(object_path, interface_names[i]); |
| 203 } |
| 204 |
| 205 void ObjectManager::InterfacesRemovedConnected( |
| 206 const std::string& interface_name, |
| 207 const std::string& signal_name, |
| 208 bool success) { |
| 209 LOG_IF(WARNING, !success) << service_name_ << " " << object_path_.value() |
| 210 << ": Failed to connect to " |
| 211 << "InterfacesRemoved signal."; |
| 212 } |
| 213 |
| 214 void ObjectManager::UpdateObject(const ObjectPath& object_path, |
| 215 MessageReader* reader) { |
| 216 DCHECK(reader); |
| 217 MessageReader array_reader(NULL); |
| 218 if (!reader->PopArray(&array_reader)) |
| 219 return; |
| 220 |
| 221 while (array_reader.HasMoreData()) { |
| 222 MessageReader dict_entry_reader(NULL); |
| 223 std::string interface_name; |
| 224 if (!array_reader.PopDictEntry(&dict_entry_reader) || |
| 225 !dict_entry_reader.PopString(&interface_name)) |
| 226 continue; |
| 227 |
| 228 AddInterface(object_path, interface_name, &dict_entry_reader); |
| 229 } |
| 230 } |
| 231 |
| 232 |
| 233 void ObjectManager::AddInterface(const ObjectPath& object_path, |
| 234 const std::string& interface_name, |
| 235 MessageReader* reader) { |
| 236 InterfaceMap::iterator iiter = interface_map_.find(interface_name); |
| 237 if (iiter == interface_map_.end()) |
| 238 return; |
| 239 Interface* interface = iiter->second; |
| 240 |
| 241 ObjectMap::iterator oiter = object_map_.find(object_path); |
| 242 Object* object; |
| 243 if (oiter == object_map_.end()) { |
| 244 object = object_map_[object_path] = new Object; |
| 245 object->object_proxy = bus_->GetObjectProxy(service_name_, object_path); |
| 246 } else |
| 247 object = oiter->second; |
| 248 |
| 249 Object::PropertiesMap::iterator piter = |
| 250 object->properties_map.find(interface_name); |
| 251 PropertySet* property_set; |
| 252 const bool interface_added = (piter == object->properties_map.end()); |
| 253 if (interface_added) { |
| 254 property_set = object->properties_map[interface_name] = |
| 255 interface->CreateProperties(object->object_proxy, |
| 256 object_path, interface_name); |
| 257 property_set->ConnectSignals(); |
| 258 } else |
| 259 property_set = piter->second; |
| 260 |
| 261 property_set->UpdatePropertiesFromReader(reader); |
| 262 |
| 263 if (interface_added) |
| 264 interface->ObjectAdded(object_path, interface_name); |
| 265 } |
| 266 |
| 267 void ObjectManager::RemoveInterface(const ObjectPath& object_path, |
| 268 const std::string& interface_name) { |
| 269 ObjectMap::iterator oiter = object_map_.find(object_path); |
| 270 if (oiter == object_map_.end()) |
| 271 return; |
| 272 Object* object = oiter->second; |
| 273 |
| 274 Object::PropertiesMap::iterator piter = |
| 275 object->properties_map.find(interface_name); |
| 276 if (piter == object->properties_map.end()) |
| 277 return; |
| 278 |
| 279 // Inform the interface before removing the properties structure or object |
| 280 // in case it needs details from them to make its own decisions. |
| 281 InterfaceMap::iterator iiter = interface_map_.find(interface_name); |
| 282 if (iiter != interface_map_.end()) { |
| 283 Interface* interface = iiter->second; |
| 284 interface->ObjectRemoved(object_path, interface_name); |
| 285 } |
| 286 |
| 287 object->properties_map.erase(piter); |
| 288 |
| 289 if (object->properties_map.empty()) { |
| 290 object_map_.erase(oiter); |
| 291 delete object; |
| 292 } |
| 293 } |
| 294 |
| 295 } // namespace dbus |
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