Re-factor network_event_log

chromeos/network/managed_state.cc

Index: chromeos/network/managed_state.cc
diff --git a/chromeos/network/managed_state.cc b/chromeos/network/managed_state.cc
index 5d9ffe3e82ac4e87a56de8a194593ba489992926..b91d4a022c38a7905ea7c24296205369b75e8a3d 100644
--- a/chromeos/network/managed_state.cc
+++ b/chromeos/network/managed_state.cc
@@ -7,6 +7,7 @@
 #include "base/logging.h"
 #include "base/values.h"
 #include "chromeos/network/device_state.h"
+#include "chromeos/network/network_event_log.h"
 #include "chromeos/network/network_state.h"
 #include "third_party/cros_system_api/dbus/service_constants.h"
 
@@ -22,7 +23,7 @@ ManagedState::~ManagedState() {
 }
 
 ManagedState* ManagedState::Create(ManagedType type, const std::string& path) {
-  switch(type) {
+  switch (type) {
     case MANAGED_TYPE_NETWORK:
       return new NetworkState(path);
     case MANAGED_TYPE_DEVICE:
@@ -59,28 +60,43 @@ bool ManagedState::ManagedStatePropertyChanged(const std::string& key,
 bool ManagedState::GetBooleanValue(const std::string& key,
                                    const base::Value& value,
                                    bool* out_value) {
-  bool res = value.GetAsBoolean(out_value);
-  if (!res)
-    LOG(WARNING) << "Failed to parse boolean value for:" << key;
-  return res;
+  bool new_value;
+  if (!value.GetAsBoolean(&new_value)) {
+    NET_LOG_ERROR("Error parsing state value", path() + "." + key);
+    return false;
+  }
+  if (*out_value == new_value)
+    return false;
+  *out_value = new_value;
+  return true;
 }
 
 bool ManagedState::GetIntegerValue(const std::string& key,
                                    const base::Value& value,
                                    int* out_value) {
-  bool res = value.GetAsInteger(out_value);
-  if (!res)
-    LOG(WARNING) << "Failed to parse integer value for:" << key;
-  return res;
+  int new_value;
+  if (!value.GetAsInteger(&new_value)) {
+    NET_LOG_ERROR("Error parsing state value", path() + "." + key);
+    return false;
+  }
+  if (*out_value == new_value)
+    return false;
+  *out_value = new_value;
+  return true;
 }
 
 bool ManagedState::GetStringValue(const std::string& key,
                                   const base::Value& value,
                                   std::string* out_value) {
-  bool res = value.GetAsString(out_value);
-  if (!res)
-    LOG(WARNING) << "Failed to parse string value for:" << key;
-  return res;
+  std::string new_value;
+  if (!value.GetAsString(&new_value)) {
+    NET_LOG_ERROR("Error parsing state value", path() + "." + key);
+    return false;
+  }
+  if (*out_value == new_value)
+    return false;
+  *out_value = new_value;
+  return true;
 }
 
 }  // namespace chromeos