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/*
* Copyright (c) 2015 ARM Limited. All rights reserved.
* SPDX-License-Identifier: Apache-2.0
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "mbed-client/m2mdevice.h"
#include "mbed-client/m2mconstants.h"
#include "mbed-client/m2mobject.h"
#include "mbed-client/m2mobjectinstance.h"
#include "mbed-client/m2mresource.h"
#include "mbed-trace/mbed_trace.h"
#define BUFFER_SIZE 21
#define TRACE_GROUP "mClt"
M2MDevice* M2MDevice::_instance = NULL;
M2MDevice* M2MDevice::get_instance()
{
if(_instance == NULL) {
// ownership of this path is transferred to M2MBase.
// Since this object is a singleton, we could use the C-structs to avoid heap
// allocation on a lot of M2MDevice -objects data.
char *path = stringdup(M2M_DEVICE_ID);
if (path) {
_instance = new M2MDevice(path);
}
}
return _instance;
}
void M2MDevice::delete_instance()
{
delete _instance;
_instance = NULL;
}
M2MDevice::M2MDevice(char *path)
: M2MObject(M2M_DEVICE_ID, path)
{
M2MBase::set_register_uri(false);
M2MBase::set_operation(M2MBase::GET_ALLOWED);
_device_instance = M2MObject::create_object_instance();
if(_device_instance) {
_device_instance->set_operation(M2MBase::GET_ALLOWED);
_device_instance->set_register_uri(true);
_device_instance->set_coap_content_type(COAP_CONTENT_OMA_TLV_TYPE);
M2MResource* res = _device_instance->create_dynamic_resource(DEVICE_REBOOT,
OMA_RESOURCE_TYPE,
M2MResourceInstance::OPAQUE,
false);
if(res) {
res->set_operation(M2MBase::POST_ALLOWED);
res->set_register_uri(false);
}
M2MResourceInstance* instance = _device_instance->create_dynamic_resource_instance(DEVICE_ERROR_CODE,
OMA_RESOURCE_TYPE,
M2MResourceInstance::INTEGER,
true,0);
if(instance) {
M2MResource * dev_res = _device_instance->resource(DEVICE_ERROR_CODE);
if(dev_res) {
dev_res->set_register_uri(false);
}
instance->set_operation(M2MBase::GET_ALLOWED);
instance->set_value(0);
instance->set_register_uri(false);
}
res = _device_instance->create_dynamic_resource(DEVICE_SUPPORTED_BINDING_MODE,
OMA_RESOURCE_TYPE,
M2MResourceInstance::STRING,
true);
if(res) {
res->set_operation(M2MBase::GET_ALLOWED);
res->set_value((const uint8_t*)BINDING_MODE_UDP,sizeof(BINDING_MODE_UDP)-1);
res->set_register_uri(false);
}
}
}
M2MDevice::~M2MDevice()
{
}
M2MResource* M2MDevice::create_resource(DeviceResource resource, const String &value)
{
M2MResource* res = NULL;
const char* device_id_ptr = "";
M2MBase::Operation operation = M2MBase::GET_ALLOWED;
if(!is_resource_present(resource) && value.size() <= MAX_ALLOWED_STRING_LENGTH) {
switch(resource) {
case Manufacturer:
device_id_ptr = DEVICE_MANUFACTURER;
break;
case DeviceType:
device_id_ptr = DEVICE_DEVICE_TYPE;
break;
case ModelNumber:
device_id_ptr = DEVICE_MODEL_NUMBER;
break;
case SerialNumber:
device_id_ptr = DEVICE_SERIAL_NUMBER;
break;
case HardwareVersion:
device_id_ptr = DEVICE_HARDWARE_VERSION;
break;
case FirmwareVersion:
device_id_ptr = DEVICE_FIRMWARE_VERSION;
break;
case SoftwareVersion:
device_id_ptr = DEVICE_SOFTWARE_VERSION;
break;
case UTCOffset:
device_id_ptr = DEVICE_UTC_OFFSET;
operation = M2MBase::GET_PUT_ALLOWED;
break;
case Timezone:
device_id_ptr = DEVICE_TIMEZONE;
operation = M2MBase::GET_PUT_ALLOWED;
break;
default:
break;
}
}
const String device_id(device_id_ptr);
if(!device_id.empty()) {
if(_device_instance) {
res = _device_instance->create_dynamic_resource(device_id,
OMA_RESOURCE_TYPE,
M2MResourceInstance::STRING,
true);
if(res ) {
res->set_operation(operation);
if (value.empty()) {
res->clear_value();
} else {
res->set_value((const uint8_t*)value.c_str(),
(uint32_t)value.length());
}
res->set_register_uri(false);
}
}
}
return res;
}
M2MResource* M2MDevice::create_resource(DeviceResource resource, int64_t value)
{
M2MResource* res = NULL;
const char* device_id_ptr = "";
M2MBase::Operation operation = M2MBase::GET_ALLOWED;
if(!is_resource_present(resource)) {
switch(resource) {
case BatteryLevel:
if(check_value_range(resource, value)) {
device_id_ptr = DEVICE_BATTERY_LEVEL;
}
break;
case BatteryStatus:
if(check_value_range(resource, value)) {
device_id_ptr = DEVICE_BATTERY_STATUS;
}
break;
case MemoryFree:
device_id_ptr = DEVICE_MEMORY_FREE;
break;
case MemoryTotal:
device_id_ptr = DEVICE_MEMORY_TOTAL;
break;
case CurrentTime:
device_id_ptr = DEVICE_CURRENT_TIME;
operation = M2MBase::GET_PUT_ALLOWED;
break;
default:
break;
}
}
const String device_id(device_id_ptr);
if(!device_id.empty()) {
if(_device_instance) {
res = _device_instance->create_dynamic_resource(device_id,
OMA_RESOURCE_TYPE,
M2MResourceInstance::INTEGER,
true);
if(res) {
res->set_operation(operation);
res->set_value(value);
res->set_register_uri(false);
}
}
}
return res;
}
M2MResourceInstance* M2MDevice::create_resource_instance(DeviceResource resource, int64_t value,
uint16_t instance_id)
{
M2MResourceInstance* res = NULL;
const char* device_id_ptr = "";
// For these resources multiple instance can exist
if(AvailablePowerSources == resource) {
if(check_value_range(resource, value)) {
device_id_ptr = DEVICE_AVAILABLE_POWER_SOURCES;
}
} else if(PowerSourceVoltage == resource) {
device_id_ptr = DEVICE_POWER_SOURCE_VOLTAGE;
} else if(PowerSourceCurrent == resource) {
device_id_ptr = DEVICE_POWER_SOURCE_CURRENT;
} else if(ErrorCode == resource) {
if(check_value_range(resource, value)) {
device_id_ptr = DEVICE_ERROR_CODE;
}
}
const String device_id(device_id_ptr);
if(!device_id.empty()) {
if(_device_instance) {
res = _device_instance->create_dynamic_resource_instance(device_id,OMA_RESOURCE_TYPE,
M2MResourceInstance::INTEGER,
true, instance_id);
M2MResource *resource = _device_instance->resource(device_id);
if(resource) {
resource->set_register_uri(false);
}
if(res) {
res->set_value(value);
// Only read operation is allowed for above resources
res->set_operation(M2MBase::GET_ALLOWED);
res->set_register_uri(false);
}
}
}
return res;
}
M2MResource* M2MDevice::create_resource(DeviceResource resource)
{
M2MResource* res = NULL;
if(!is_resource_present(resource)) {
const char* device_Id_ptr = "";
if(FactoryReset == resource) {
device_Id_ptr = DEVICE_FACTORY_RESET;
} else if(ResetErrorCode == resource) {
device_Id_ptr = DEVICE_RESET_ERROR_CODE;
}
const String device_Id(device_Id_ptr);
if(_device_instance && !device_Id.empty()) {
res = _device_instance->create_dynamic_resource(device_Id,
OMA_RESOURCE_TYPE,
M2MResourceInstance::OPAQUE,
true);
M2MResource *resource = _device_instance->resource(device_Id);
if(resource) {
resource->set_register_uri(false);
}
if(res) {
res->set_operation(M2MBase::POST_ALLOWED);
res->set_register_uri(false);
}
}
}
return res;
}
bool M2MDevice::delete_resource(DeviceResource resource)
{
bool success = false;
if(M2MDevice::Reboot != resource &&
M2MDevice::ErrorCode != resource &&
M2MDevice::SupportedBindingMode != resource) {
if(_device_instance) {
success = _device_instance->remove_resource(resource_name(resource));
}
}
return success;
}
bool M2MDevice::delete_resource_instance(DeviceResource resource,
uint16_t instance_id)
{
bool success = false;
if(M2MDevice::Reboot != resource &&
M2MDevice::ErrorCode != resource &&
M2MDevice::SupportedBindingMode != resource) {
if(_device_instance) {
success = _device_instance->remove_resource_instance(resource_name(resource),instance_id);
}
}
return success;
}
bool M2MDevice::set_resource_value(DeviceResource resource,
const String &value,
uint16_t instance_id)
{
bool success = false;
M2MResourceBase* res = get_resource_instance(resource, instance_id);
if(res && value.size() <= MAX_ALLOWED_STRING_LENGTH) {
if(M2MDevice::Manufacturer == resource ||
M2MDevice::ModelNumber == resource ||
M2MDevice::DeviceType == resource ||
M2MDevice::SerialNumber == resource ||
M2MDevice::HardwareVersion == resource ||
M2MDevice::FirmwareVersion == resource ||
M2MDevice::SoftwareVersion == resource ||
M2MDevice::UTCOffset == resource ||
M2MDevice::Timezone == resource) {
if (value.empty()) {
res->clear_value();
success = true;
} else {
success = res->set_value((const uint8_t*)value.c_str(),(uint32_t)value.length());
}
}
}
return success;
}
bool M2MDevice::set_resource_value(DeviceResource resource,
int64_t value,
uint16_t instance_id)
{
bool success = false;
M2MResourceBase* res = get_resource_instance(resource, instance_id);
if(res) {
if(M2MDevice::BatteryLevel == resource ||
M2MDevice::BatteryStatus == resource ||
M2MDevice::MemoryFree == resource ||
M2MDevice::MemoryTotal == resource ||
M2MDevice::ErrorCode == resource ||
M2MDevice::CurrentTime == resource ||
M2MDevice::AvailablePowerSources == resource ||
M2MDevice::PowerSourceVoltage == resource ||
M2MDevice::PowerSourceCurrent == resource) {
// If it is any of the above resource
// set the value of the resource.
if (check_value_range(resource, value)) {
success = res->set_value(value);
}
}
}
return success;
}
String M2MDevice::resource_value_string(DeviceResource resource,
uint16_t instance_id) const
{
String value = "";
const M2MResourceBase* res = get_resource_instance(resource, instance_id);
if(res) {
if(M2MDevice::Manufacturer == resource ||
M2MDevice::ModelNumber == resource ||
M2MDevice::DeviceType == resource ||
M2MDevice::SerialNumber == resource ||
M2MDevice::HardwareVersion == resource ||
M2MDevice::FirmwareVersion == resource ||
M2MDevice::SoftwareVersion == resource ||
M2MDevice::UTCOffset == resource ||
M2MDevice::Timezone == resource) {
value = res->get_value_string();
}
}
return value;
}
int64_t M2MDevice::resource_value_int(DeviceResource resource,
uint16_t instance_id) const
{
int64_t value = -1;
M2MResourceBase* res = get_resource_instance(resource, instance_id);
if(res) {
if(M2MDevice::BatteryLevel == resource ||
M2MDevice::BatteryStatus == resource ||
M2MDevice::MemoryFree == resource ||
M2MDevice::MemoryTotal == resource ||
M2MDevice::ErrorCode == resource ||
M2MDevice::CurrentTime == resource ||
M2MDevice::AvailablePowerSources == resource ||
M2MDevice::PowerSourceVoltage == resource ||
M2MDevice::PowerSourceCurrent == resource) {
// note: the value may be 32bit int on 32b archs.
value = res->get_value_int();
}
}
return value;
}
bool M2MDevice::is_resource_present(DeviceResource resource) const
{
bool success = false;
const M2MResourceBase* res = get_resource_instance(resource,0);
if(res) {
success = true;
}
return success;
}
uint16_t M2MDevice::per_resource_count(DeviceResource res) const
{
uint16_t count = 0;
if(_device_instance) {
count = _device_instance->resource_count(resource_name(res));
}
return count;
}
uint16_t M2MDevice::total_resource_count() const
{
uint16_t count = 0;
if(_device_instance) {
count = _device_instance->resources().size();
}
return count;
}
M2MResourceBase* M2MDevice::get_resource_instance(DeviceResource dev_res,
uint16_t instance_id) const
{
M2MResource* res = NULL;
M2MResourceBase* inst = NULL;
if(_device_instance) {
res = _device_instance->resource(resource_name(dev_res));
if(res) {
if(res->supports_multiple_instances()) {
inst = res->resource_instance(instance_id);
} else {
inst = res;
}
}
}
return inst;
}
const char* M2MDevice::resource_name(DeviceResource resource)
{
const char* res_name = "";
switch(resource) {
case Manufacturer:
res_name = DEVICE_MANUFACTURER;
break;
case DeviceType:
res_name = DEVICE_DEVICE_TYPE;
break;
case ModelNumber:
res_name = DEVICE_MODEL_NUMBER;
break;
case SerialNumber:
res_name = DEVICE_SERIAL_NUMBER;
break;
case HardwareVersion:
res_name = DEVICE_HARDWARE_VERSION;
break;
case FirmwareVersion:
res_name = DEVICE_FIRMWARE_VERSION;
break;
case SoftwareVersion:
res_name = DEVICE_SOFTWARE_VERSION;
break;
case Reboot:
res_name = DEVICE_REBOOT;
break;
case FactoryReset:
res_name = DEVICE_FACTORY_RESET;
break;
case AvailablePowerSources:
res_name = DEVICE_AVAILABLE_POWER_SOURCES;
break;
case PowerSourceVoltage:
res_name = DEVICE_POWER_SOURCE_VOLTAGE;
break;
case PowerSourceCurrent:
res_name = DEVICE_POWER_SOURCE_CURRENT;
break;
case BatteryLevel:
res_name = DEVICE_BATTERY_LEVEL;
break;
case BatteryStatus:
res_name = DEVICE_BATTERY_STATUS;
break;
case MemoryFree:
res_name = DEVICE_MEMORY_FREE;
break;
case MemoryTotal:
res_name = DEVICE_MEMORY_TOTAL;
break;
case ErrorCode:
res_name = DEVICE_ERROR_CODE;
break;
case ResetErrorCode:
res_name = DEVICE_RESET_ERROR_CODE;
break;
case CurrentTime:
res_name = DEVICE_CURRENT_TIME;
break;
case UTCOffset:
res_name = DEVICE_UTC_OFFSET;
break;
case Timezone:
res_name = DEVICE_TIMEZONE;
break;
case SupportedBindingMode:
res_name = DEVICE_SUPPORTED_BINDING_MODE;
break;
}
return res_name;
}
bool M2MDevice::check_value_range(DeviceResource resource, int64_t value)
{
bool success = false;
switch (resource) {
case AvailablePowerSources:
if(value >= 0 && value <= 7) {
success = true;
}
break;
case BatteryLevel:
if (value >= 0 && value <= 100) {
success = true;
}
break;
case BatteryStatus:
if (value >= 0 && value <= 6) {
success = true;
}
break;
case ErrorCode:
if (value >= 0 && value <= 8) {
success = true;
}
break;
default:
success = true;
break;
}
return success;
}