Add PolicyManager, related classes and some config files

- PolicyManager
    Decide next layout by using occured event and current state
    based on policy table.
    This PolicyManger is reference and the OEMs can replace it.

- LayoutManager
    Change the current layout to the layout
    which decided by PolicyManager.

    NOTE:
    The functions of this class had been included in App class.
    The part of function of this class remain there yet.

- LowCanClient
    Receive the CAN signal from low level CAN service.

- app.db
    Define the applications name and its role.
    This file will be deleted
    when the names and roles can be given by other module.

- layout.cb
    Define the layouts and areas which are included by the layout.

- role.db
    Define the roles of the applications.

Change-Id: I2f84bdf5e68355e022f516cee9a1db88efe58825
Signed-off-by: Yuta Doi <yuta-d@witz-inc.co.jp>

1 files changed, 53 insertions, 1 deletions

diff --git a/src/json_helper.cpp b/src/json_helper.cpp
index 193a187..ac3d2b0 100644
--- a/src/json_helper.cpp
+++ b/src/json_helper.cpp
@@ -14,9 +14,12 @@
  * limitations under the License.
  */
 
-#include "json_helper.hpp"
 
+#include <json-c/json.h>
 #include <json.h>
+#include "json_helper.hpp"
+#include "hmi-debug.h"
+
 
 json_object *to_json(compositor::surface_properties const &s) {
    // auto j = json::object({
@@ -100,3 +103,52 @@ json_object *to_json(std::vector<uint32_t> const &v) {
    }
    return a;
 }
+
+namespace jh {
+
+const char* getStringFromJson(json_object* obj, const char* key) {
+    if ((nullptr == obj) || (nullptr == key)) {
+        HMI_ERROR("wm:jh", "Argument is nullptr!!!");
+        return nullptr;
+    }
+
+    json_object* tmp;
+    if (!json_object_object_get_ex(obj, key, &tmp)) {
+        HMI_DEBUG("wm:jh", "Not found key \"%s\"", key);
+        return nullptr;
+    }
+
+    return json_object_get_string(tmp);
+}
+
+int getIntFromJson(json_object* obj, const char* key) {
+    if ((nullptr == obj) || (nullptr == key)) {
+        HMI_ERROR("wm", "Argument is nullptr!!!");
+        return 0;
+    }
+
+    json_object* tmp;
+    if (!json_object_object_get_ex(obj, key, &tmp)) {
+        HMI_DEBUG("wm", "Not found key \"%s\"", key);
+        return 0;
+    }
+
+    return json_object_get_int(tmp);
+}
+
+json_bool getBoolFromJson(json_object* obj, const char* key) {
+    if ((nullptr == obj) || (nullptr == key)) {
+        HMI_ERROR("wm", "Argument is nullptr!!!");
+        return 0;
+    }
+
+    json_object* tmp;
+    if (!json_object_object_get_ex(obj, key, &tmp)) {
+        HMI_DEBUG("wm", "Not found key \"%s\"", key);
+        return 0;
+    }
+
+    return json_object_get_boolean(tmp);
+}
+
+} // namespace jh