This factors out all of the parsing code from the network library

chrome/browser/chromeos/cros/network_parser.cc

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/chromeos/cros/network_parser.h"
+
+#include "base/json/json_writer.h" // for debug output only.
+#include "base/stringprintf.h"
+// Needed only for debug output (ConnectionTypeToString).
+#include "chrome/browser/chromeos/cros/native_network_constants.h"
+
+namespace chromeos {
+
+namespace {
+Network* CreateNewNetwork(
+    ConnectionType type, const std::string& service_path) {
+  switch (type) {
+    case TYPE_ETHERNET: {
+      EthernetNetwork* ethernet = new EthernetNetwork(service_path);
+      return ethernet;
+    }
+    case TYPE_WIFI: {
+      WifiNetwork* wifi = new WifiNetwork(service_path);
+      return wifi;
+    }
+    case TYPE_CELLULAR: {
+      CellularNetwork* cellular = new CellularNetwork(service_path);
+      return cellular;
+    }
+    case TYPE_VPN: {
+      VirtualNetwork* vpn = new VirtualNetwork(service_path);
+      return vpn;
+    }
+    default: {
+      // If we try and create a service for which we have an unknown
+      // type, then that's a bug, and we will crash.
+      LOG(FATAL) << "Unknown service type: " << type;
+      return NULL;
+    }
+  }
+}
+}  // namespace
+
+NetworkDeviceParser::NetworkDeviceParser(
+    const EnumMapper<PropertyIndex>* mapper) : mapper_(mapper) {
+  CHECK(mapper);
+}
+
+NetworkDeviceParser::~NetworkDeviceParser() {
+}
+
+NetworkDevice* NetworkDeviceParser::CreateDeviceFromInfo(
+    const std::string& device_path,
+    const DictionaryValue& info) {
+  scoped_ptr<NetworkDevice> device(new NetworkDevice(device_path));
+  if (!UpdateDeviceFromInfo(info, device.get())) {
+    NOTREACHED() << "Unable to create new device";
+    return NULL;
+  }
+  VLOG(2) << "Created device for path " << device_path;
+  return device.release();
+}
+
+bool NetworkDeviceParser::UpdateDeviceFromInfo(const DictionaryValue& info,
+                                               NetworkDevice* device) {
+  for (DictionaryValue::key_iterator iter = info.begin_keys();
+       iter != info.end_keys(); ++iter) {
+    const std::string& key = *iter;
+    Value* value;
+    bool result = info.GetWithoutPathExpansion(key, &value);
+    DCHECK(result);
+    if (result)
+      UpdateStatus(key, *value, device, NULL);
+  }
+  if (VLOG_IS_ON(2)) {
+    std::string json;
+    base::JSONWriter::Write(&info, true, &json);
+    VLOG(2) << "Updated device for path "
+            << device->device_path() << ": " << json;
+  }
+  return true;
+}
+
+bool NetworkDeviceParser::UpdateStatus(const std::string& key,
+                                       const Value& value,
+                                       NetworkDevice* device,
+                                       PropertyIndex* index) {
+  PropertyIndex found_index = mapper().Get(key);
+  if (index)
+    *index = found_index;
+  if (!ParseValue(found_index, value, device)) {
+    VLOG(1) << "NetworkDeviceParser: Unhandled key: " << key;
+    return false;
+  }
+  if (VLOG_IS_ON(2)) {
+    std::string value_json;
+    base::JSONWriter::Write(&value, true, &value_json);
+    VLOG(2) << "Updated value on device: "
+            << device->device_path() << "[" << key << "] = " << value_json;
+  }
+  return true;
+}
+
+//----------- Network Parser -----------------
+
+NetworkParser::NetworkParser(const EnumMapper<PropertyIndex>* mapper)
+    : mapper_(mapper) {
+  CHECK(mapper);
+}
+
+NetworkParser::~NetworkParser() {
+}
+
+Network* NetworkParser::CreateNetworkFromInfo(
+    const std::string& service_path,
+    const DictionaryValue& info) {
+  ConnectionType type = ParseTypeFromDictionary(info);
+  scoped_ptr<Network> network(CreateNewNetwork(type, service_path));
+  if (network.get())
+    UpdateNetworkFromInfo(info, network.get());
+  VLOG(2) << "Created Network '" << network->name()
+          << "' from info. Path:" << service_path
+          << " Type:" << ConnectionTypeToString(type);
+  return network.release();
+}
+
+bool NetworkParser::UpdateNetworkFromInfo(const DictionaryValue& info,
+                                          Network* network) {
+  network->set_unique_id("");
+  for (DictionaryValue::key_iterator iter = info.begin_keys();
+       iter != info.end_keys(); ++iter) {
+    const std::string& key = *iter;
+    Value* value;
+    bool res = info.GetWithoutPathExpansion(key, &value);
+    DCHECK(res);
+    if (res)
+      UpdateStatus(key, *value, network, NULL);
+  }
+  if (network->unique_id().empty())
+    network->CalculateUniqueId();
+  VLOG(2) << "Updated network '" << network->name()
+          << "' Path:" << network->service_path() << " Type:"
+          << ConnectionTypeToString(network->type());
+  return true;
+}
+
+bool NetworkParser::UpdateStatus(const std::string& key,
+                                 const Value& value,
+                                 Network* network,
+                                 PropertyIndex* index) {
+  PropertyIndex found_index = mapper().Get(key);
+  if (index)
+    *index = found_index;
+  if (!ParseValue(found_index, value, network)) {
+    VLOG(1) << "Unhandled key '" << key << "' in Network: " << network->name()
+            << " ID: " << network->unique_id()
+            << " Type: " << ConnectionTypeToString(network->type());
+    return false;
+  }
+  if (VLOG_IS_ON(2)) {
+    std::string value_json;
+    base::JSONWriter::Write(&value, true, &value_json);
+    VLOG(2) << "Updated value on network: "
+            << network->unique_id() << "[" << key << "] = " << value_json;
+  }
+  return true;
+}
+
+bool NetworkParser::ParseValue(PropertyIndex index,
+                               const Value& value,
+                               Network* network) {
+  switch (index) {
+    case PROPERTY_INDEX_TYPE: {
+      std::string type_string;
+      if (value.GetAsString(&type_string)) {
+        ConnectionType type = ParseType(type_string);
+        LOG_IF(ERROR, type != network->type())
+            << "Network with mismatched type: " << network->service_path()
+            << " " << type << " != " << network->type();
+        return true;
+      }
+      break;
+    }
+    case PROPERTY_INDEX_DEVICE: {
+      std::string device_path;
+      if (!value.GetAsString(&device_path))
+        break;
+      network->set_device_path(device_path);
+      return true;
+    }
+    case PROPERTY_INDEX_NAME: {
+      std::string name;
+      if (value.GetAsString(&name)) {
+        network->SetName(name);
+        return true;
+      }
+      break;
+    }
+    case PROPERTY_INDEX_GUID: {
+      std::string unique_id;
+      if (!value.GetAsString(&unique_id))
+        break;
+      network->set_unique_id(unique_id);
+      return true;
+    }
+    case PROPERTY_INDEX_PROFILE: {
+      // Note: currently this is only provided for non remembered networks.
+      std::string profile_path;
+      if (!value.GetAsString(&profile_path))
+        break;
+      network->set_profile_path(profile_path);
+      return true;
+    }
+    case PROPERTY_INDEX_STATE: {
+      std::string state_string;
+      if (value.GetAsString(&state_string)) {
+        network->SetState(ParseState(state_string));
+        return true;
+      }
+      break;
+    }
+    case PROPERTY_INDEX_MODE: {
+      std::string mode_string;
+      if (value.GetAsString(&mode_string)) {
+        network->mode_ = ParseMode(mode_string);
+        return true;
+      }
+      break;
+    }
+    case PROPERTY_INDEX_ERROR: {
+      std::string error_string;
+      if (value.GetAsString(&error_string)) {
+        network->error_ = ParseError(error_string);
+        return true;
+      }
+      break;
+    }
+    case PROPERTY_INDEX_CONNECTABLE: {
+      bool connectable;
+      if (!value.GetAsBoolean(&connectable))
+        break;
+      network->set_connectable(connectable);
+      return true;
+    }
+    case PROPERTY_INDEX_IS_ACTIVE: {
+      bool is_active;
+      if (!value.GetAsBoolean(&is_active))
+        break;
+      network->set_is_active(is_active);
+      return true;
+    }
+    case PROPERTY_INDEX_AUTO_CONNECT: {
+      bool auto_connect;
+      if (!value.GetAsBoolean(&auto_connect))
+        break;
+      network->set_auto_connect(auto_connect);
+      return true;
+    }
+    case PROPERTY_INDEX_SAVE_CREDENTIALS: {
+      bool save_credentials;
+      if (!value.GetAsBoolean(&save_credentials))
+        break;
+      network->set_save_credentials(save_credentials);
+      return true;
+    }
+    default:
+      break;
+  }
+  return false;
+}
+
+}  // namespace chromeos