A class representin the Device Object model of the LwM2M framework. More...

#include <m2mdevice.h>

Inheritance diagram for M2MDevice:

Public Types
enum	DeviceResource { Manufacturer, DeviceType, ModelNumber, SerialNumber, HardwareVersion, FirmwareVersion, SoftwareVersion, Reboot, FactoryReset, AvailablePowerSources, PowerSourceVoltage, PowerSourceCurrent, BatteryLevel, BatteryStatus, MemoryFree, MemoryTotal, ErrorCode, ResetErrorCode, CurrentTime, UTCOffset, Timezone, SupportedBindingMode }
	An enum defining all the resources associated with the Device Object in the LWM2M framework.

Public Types inherited from M2MBase
enum	BaseType { Object = 0x0, Resource = 0x1, ObjectInstance = 0x2, ResourceInstance = 0x3 }
	Enum to define the type of object.

enum	Observation { None = 0x0, R_Attribute = 0x01, OI_Attribute = 0x02, OIR_Attribute = 0x03, O_Attribute = 0x04, OR_Attribute = 0x05, OOI_Attribute = 0x06, OOIR_Attribute = 0x07 }
	Enum to define observation level.

enum	Mode { Static, Dynamic, Directory }
	Enum defining a resource type.

enum	DataType { STRING, INTEGER, FLOAT, BOOLEAN, OPAQUE, TIME, OBJLINK }
	Enum defining a resource data type.

enum	Operation { NOT_ALLOWED = 0x00, GET_ALLOWED = 0x01, PUT_ALLOWED = 0x02, GET_PUT_ALLOWED = 0x03, POST_ALLOWED = 0x04, GET_POST_ALLOWED = 0x05, PUT_POST_ALLOWED = 0x06, GET_PUT_POST_ALLOWED = 0x07, DELETE_ALLOWED = 0x08, GET_DELETE_ALLOWED = 0x09, PUT_DELETE_ALLOWED = 0x0A, GET_PUT_DELETE_ALLOWED = 0x0B, POST_DELETE_ALLOWED = 0x0C, GET_POST_DELETE_ALLOWED = 0x0D, PUT_POST_DELETE_ALLOWED = 0x0E, GET_PUT_POST_DELETE_ALLOWED = 0x0F }
	Enum defining an operation that can be supported by a given resource.

enum	MessageDeliveryStatus { MESSAGE_STATUS_INIT = 0, MESSAGE_STATUS_BUILD_ERROR, MESSAGE_STATUS_RESEND_QUEUE_FULL, MESSAGE_STATUS_SENT, MESSAGE_STATUS_DELIVERED, MESSAGE_STATUS_SEND_FAILED, MESSAGE_STATUS_SUBSCRIBED, MESSAGE_STATUS_UNSUBSCRIBED, MESSAGE_STATUS_REJECTED }
	Enum defining an status codes that can happen when sending confirmable message.

enum	MessageType { NOTIFICATION = 0, DELAYED_POST_RESPONSE, BLOCK_SUBSCRIBE, PING }

enum	MaxPathSize { MAX_NAME_SIZE = 64, MAX_INSTANCE_SIZE = 5, MAX_PATH_SIZE = ((MAX_NAME_SIZE * 2) + (MAX_INSTANCE_SIZE * 2) + 3 + 1), MAX_PATH_SIZE_2 = ((MAX_NAME_SIZE * 2) + MAX_INSTANCE_SIZE + 2 + 1), MAX_PATH_SIZE_3 = (MAX_NAME_SIZE + (MAX_INSTANCE_SIZE * 2) + 2 + 1), MAX_PATH_SIZE_4 = (MAX_NAME_SIZE + MAX_INSTANCE_SIZE + 1 + 1) }

typedef void(*	notification_delivery_status_cb) (const M2MBase &base, const NotificationDeliveryStatus status, void *client_args)

typedef void(*	message_delivery_status_cb) (const M2MBase &base, const MessageDeliveryStatus status, const MessageType type, void *client_args)

typedef struct M2MBase::lwm2m_parameters	lwm2m_parameters_s
	LwM2M parameters.

Public Member Functions
M2MResource *	create_resource (DeviceResource resource, const String &value)
	Creates a new resource for the given resource enum. More...

M2MResource *	create_resource (DeviceResource resource, int64_t value)
	Creates a new resource for the given resource enum. More...

M2MResourceInstance *	create_resource_instance (DeviceResource resource, int64_t value, uint16_t instance_id)
	Creates a new resource instance for the given resource enum. More...

M2MResource *	create_resource (DeviceResource resource)
	Creates a new resource for the given resource name. More...

bool	delete_resource (DeviceResource resource)
	Deletes the resource with the given resource enum. Mandatory resources cannot be deleted. More...

bool	delete_resource_instance (DeviceResource resource, uint16_t instance_id)
	Deletes the resource with the given resource enum. Mandatory resources cannot be deleted. More...

bool	set_resource_value (DeviceResource resource, const String &value, uint16_t instance_id=0)
	Sets the value of the given resource enum. More...

bool	set_resource_value (DeviceResource resource, int64_t value, uint16_t instance_id=0)
	Sets the value of the given resource enum. More...

String	resource_value_string (DeviceResource resource, uint16_t instance_id=0) const
	Returns the value of the given resource enum, in string format. More...

int64_t	resource_value_int (DeviceResource resource, uint16_t instance_id=0) const
	Returns the value of the given resource key name, in integer format. More...

bool	is_resource_present (DeviceResource resource) const
	Indicates whether the resource instance with the given resource enum exists or not. More...

uint16_t	total_resource_count () const
	Returns the number of resources for the whole device object. More...

uint16_t	per_resource_count (DeviceResource resource) const
	Returns the number of resources for a given resource enum. More...

Public Member Functions inherited from M2MObject
virtual	~M2MObject ()
	Destructor.

M2MObjectInstance *	create_object_instance (uint16_t instance_id=0)
	Creates a new object instance for a given mbed Client Interface object. With this, the client can respond to server's GET methods with the provided value. More...

M2MObjectInstance *	create_object_instance (const lwm2m_parameters_s *s)
	Creates a new object instance for a given mbed Client Interface object. With this, the client can respond to server's GET methods with the provided value. More...

bool	remove_object_instance (uint16_t instance_id=0)
	Removes the object instance resource with the given instance id. More...

M2MObjectInstance *	object_instance (uint16_t instance_id=0) const
	Returns the object instance with the the given instance ID. More...

const M2MObjectInstanceList &	instances () const
	Returns a list of object instances. More...

uint16_t	instance_count () const
	Returns the total number of object instances-. More...

virtual M2MObservationHandler *	observation_handler () const
	Returns the Observation Handler object. More...

virtual void	set_observation_handler (M2MObservationHandler *handler)
	Sets the observation handler. More...

virtual void	add_observation_level (M2MBase::Observation observation_level)
	Adds the observation level for the object. More...

virtual void	remove_observation_level (M2MBase::Observation observation_level)
	Removes the observation level from the object. More...

virtual sn_coap_hdr_s *	handle_get_request (nsdl_s nsdl, sn_coap_hdr_s received_coap_header, M2MObservationHandler *observation_handler=NULL)
	Handles GET request for the registered objects. More...

virtual sn_coap_hdr_s *	handle_put_request (nsdl_s nsdl, sn_coap_hdr_s received_coap_header, M2MObservationHandler *observation_handler, bool &execute_value_updated)
	Handles PUT request for the registered objects. More...

virtual sn_coap_hdr_s *	handle_post_request (nsdl_s nsdl, sn_coap_hdr_s received_coap_header, M2MObservationHandler observation_handler, bool &execute_value_updated, sn_nsdl_addr_s address=NULL)
	Handles GET request for the registered objects. More...

void	notification_update (uint16_t obj_instance_id)

Public Member Functions inherited from M2MBase
virtual	~M2MBase ()
	Destructor.

void	set_operation (M2MBase::Operation operation)
	Sets the operation type for an object. More...

void	set_interface_description (const String &description)
	Sets the interface description of the object. More...

void	set_interface_description (const char *description)
	Sets the interface description of the object. More...

const char *	interface_description () const
	Returns the interface description of the object. More...

virtual void	set_resource_type (const String &resource_type)
	Sets the resource type of the object. More...

virtual void	set_resource_type (const char *resource_type)
	Sets the resource type of the object. More...

const char *	resource_type () const
	Returns the resource type of the object. More...

void	set_coap_content_type (const uint16_t content_type)
	Sets the CoAP content type of the object. More...

void	set_observable (bool observable)
	Sets the observable mode for the object. More...

void	set_auto_observable (bool auto_observable)
	Sets the object to be auto-observable. More...

void	set_under_observation (bool observed, M2MObservationHandler *handler)
	Sets the object under observation. More...

void	set_instance_id (const uint16_t instance_id)
	Sets the instance ID of the object. More...

void	set_max_age (const uint32_t max_age)
	Sets the max age for the resource value to be cached. More...

M2MBase::BaseType	base_type () const
	Returns the object type. More...

M2MBase::Operation	operation () const
	Returns the operation type of the object. More...

const char *	name () const
	Returns the object name. More...

int32_t	name_id () const
	Returns the object name in integer. More...

uint16_t	instance_id () const
	Returns the object's instance ID. More...

const char *	uri_path () const
	Returns the path of the object. More...

uint16_t	coap_content_type () const
	Returns the CoAP content type of the object. More...

bool	is_observable () const
	Returns the observation status of the object. More...

bool	is_auto_observable () const
	Returns the auto observation status of the object. More...

M2MBase::Observation	observation_level () const
	Returns the observation level of the object. More...

Mode	mode () const
	Returns the mode of the resource. More...

uint16_t	observation_number () const
	Returns the observation number. More...

uint32_t	max_age () const
	Returns the max age for the resource value to be cached. More...

void	send_notification_delivery_status (const M2MBase &object, const NotificationDeliveryStatus status)
	Executes the function that is set in "set_notification_delivery_status_cb". Note: the setter for this callback is marked as m2m_deprecated, but there is no point having it here, as then the code will always give warnings. This simply must be there until the set_notification_delivery_status_cb() is removed.

void	send_message_delivery_status (const M2MBase &object, const MessageDeliveryStatus status, const MessageType type)
	Executes the function that is set in "set_message_delivery_status_cb".

void	set_register_uri (bool register_uri)
	Sets whether this resource is published to server or not. More...

bool	register_uri ()
	Returns whether this resource is published to server or not. More...

bool	is_under_observation () const
	Returns whether this resource is under observation or not. More...

bool	set_value_updated_function (value_updated_callback callback)
	Sets the function that is executed when this object receives a PUT or POST command. More...

bool	set_value_updated_function (value_updated_callback2 callback)
	Sets the function that is executed when this object receives a PUT or POST command. More...

bool	is_value_updated_function_set () const
	Returns whether a callback function is set or not. More...

void	execute_value_updated (const String &name)
	Calls the function that is set in the "set_value_updated_function". More...

size_t	resource_name_length () const
	Returns length of the object name. More...

sn_nsdl_dynamic_resource_parameters_s *	get_nsdl_resource () const
	Returns the resource information. More...

M2MBase::lwm2m_parameters_s *	get_lwm2m_parameters () const
	Returns the resource structure. More...

uint16_t	get_notification_msgid () const m2m_deprecated
	Returns the notification message id. More...

void	set_notification_msgid (uint16_t msgid) m2m_deprecated
	Sets the notification message id. This is used to map RESET and EMPTY ACK messages. More...

bool	set_notification_delivery_status_cb (notification_delivery_status_cb callback, void *client_args) m2m_deprecated
	Sets the function that is executed when notification message state changes. More...

bool	set_message_delivery_status_cb (message_delivery_status_cb callback, void *client_args)
	Sets the function that is executed when message state changes. Currently this is used to track notifications and delayed response delivery statuses. More...

Static Public Member Functions
static void	delete_instance ()
	Deletes an M2MDevice instance.

Static Public Member Functions inherited from M2MBase
static char *	create_path (const M2MObject &parent, const char *name)

static char *	create_path (const M2MObject &parent, uint16_t object_instance)

static char *	create_path (const M2MResource &parent, uint16_t resource_instance)

static char *	create_path (const M2MResource &parent, const char *name)

static char *	create_path (const M2MObjectInstance &parent, const char *name)

Static Protected Attributes
static M2MDevice *	_instance

Friends
class	M2MInterfaceFactory

class	Test_M2MDevice

class	Test_M2MInterfaceFactory

Additional Inherited Members
Protected Member Functions inherited from M2MObject
	M2MObject (const String &object_name, char *path, bool external_blockwise_store=false)
	Constructor. More...

M2MObject &	operator= (const M2MObject &)

	M2MObject (const M2MObject &)

	M2MObject (const M2MBase::lwm2m_parameters_s *static_res)
	Constructor. More...

virtual M2MBase *	get_parent () const
	Returns the owner object. Can return NULL if the object has no parent.

Protected Member Functions inherited from M2MBase
M2MBase &	operator= (const M2MBase &)

	M2MBase (const M2MBase &)

	M2MBase (const String &name, M2MBase::Mode mode, const String &resource_type, char *path, bool external_blockwise_store, bool multiple_instance, M2MBase::DataType type=M2MBase::OBJLINK)
	Constructor. More...

	M2MBase (const lwm2m_parameters_s *s)

virtual bool	observation_to_be_sent (const m2m::Vector< uint16_t > &changed_instance_ids, uint16_t obs_number, bool send_object=false)
	An observation callback to be sent to the server due to a change in the observed parameter. More...

void	set_base_type (M2MBase::BaseType type)
	Sets the base type for an object. More...

M2MReportHandler *	create_report_handler ()
	Create Report Handler object. More...

M2MReportHandler *	report_handler () const
	Returns the Report Handler object. More...

void	free_resources ()
	Delete the resource structures owned by this object. Note: this needs to be called separately from each subclass' destructor as this method uses a virtual method and the call needs to be done at same class which has the implementation of the pure virtual method.

NotificationDeliveryStatus	get_notification_delivery_status () const m2m_deprecated
	Returns notification send status. More...

void	clear_notification_delivery_status () m2m_deprecated
	Clears the notification send status to initial state.

void	get_observation_token (uint8_t *token, uint8_t &token_length) const
	Provides the observation token of the object. More...

void	set_observation_token (const uint8_t *token, const uint8_t length)
	Sets the observation token value. More...

virtual void	set_changed ()
	The data has changed and it needs to be updated into Device Management. Current implementation maintains the changed state only in M2MEndpoint. If any of the changes in an object changes the M2M registration structure, the information is propagated to M2MEndpoint using this interface.

void	handle_observation (nsdl_s nsdl, const sn_coap_hdr_s &received_coap_header, sn_coap_hdr_s &coap_response, M2MObservationHandler observation_handler, sn_coap_msg_code_e &response_code)
	Handles subscription request. More...

void	start_observation (const sn_coap_hdr_s &received_coap_header, M2MObservationHandler *observation_handler)
	Start the observation. More...

Static Protected Member Functions inherited from M2MBase
static void *	memory_alloc (uint32_t size)
	Memory allocation required for libCoap. More...

static void	memory_free (void *ptr)
	Memory free functions required for libCoap. More...

static char *	alloc_string_copy (const char *source)
	Allocate and make a copy of given zero terminated string. This is functionally equivalent with strdup(). More...

static uint8_t *	alloc_string_copy (const uint8_t *source, uint32_t size)
	Allocate (size + 1) amount of memory, copy size bytes into it and add zero termination. More...

static uint8_t *	alloc_copy (const uint8_t *source, uint32_t size)
	Allocate (size) amount of memory, copy size bytes into it. More...

static bool	validate_string_length (const String &string, size_t min_length, size_t max_length)

static bool	validate_string_length (const char *string, size_t min_length, size_t max_length)

static bool	build_path (StringBuffer< MAX_PATH_SIZE > &buffer, const char s1, uint16_t i1, const char s2, uint16_t i2)

static bool	build_path (StringBuffer< MAX_PATH_SIZE_2 > &buffer, const char s1, uint16_t i1, const char s2)

static bool	build_path (StringBuffer< MAX_PATH_SIZE_3 > &buffer, const char *s1, uint16_t i1, uint16_t i2)

static bool	build_path (StringBuffer< MAX_PATH_SIZE_4 > &buffer, const char *s1, uint16_t i1)

static char *	stringdup (const char *s)

static bool	is_blockwise_needed (const nsdl_s *nsdl, uint32_t payload_len)
	Checks whether blockwise is needed to send resource value to server. More...

Detailed Description

A class representin the Device Object model of the LwM2M framework.

Note: There can be only one instance of a Device Object.

Member Function Documentation

M2MResource* M2MDevice::create_resource	(	DeviceResource	resource,
		const String &	value
	)

Creates a new resource for the given resource enum.

Parameters

resource	With this function, the following resources can be created: 'Manufacturer', 'DeviceType','ModelNumber','SerialNumber', 'HardwareVersion', 'FirmwareVersion', 'SoftwareVersion', 'UTCOffset', 'Timezone', 'SupportedBindingMode'.
value	The value to be set on the resource, in string format.

Returns: M2MResource if created successfully, else NULL.

M2MResource* M2MDevice::create_resource	(	DeviceResource	resource,
		int64_t	value
	)

Creates a new resource for the given resource enum.

Parameters

resource	With this function, the following resources can be created: 'AvailablePowerSources','PowerSourceVoltage','PowerSourceCurrent', 'BatteryLevel', 'BatteryStatus', 'MemoryFree', 'MemoryTotal', 'ErrorCode', 'CurrentTime'. For 'CurrentTime', pass the time value in EPOCH format, for example 1438944683.
value	The value to be set on the resource, in integer format.

Returns: M2MResource if created successfully, else NULL.

M2MResource* M2MDevice::create_resource ( DeviceResource resource )

Creates a new resource for the given resource name.

Parameters

resource With this function, the following resources can be created: 'ResetErrorCode','FactoryReset'.

Returns: M2MResource if created successfully, else NULL.

M2MResourceInstance* M2MDevice::create_resource_instance	(	DeviceResource	resource,
		int64_t	value,
		uint16_t	instance_id
	)

Creates a new resource instance for the given resource enum.

Parameters

resource	With this function, the following resources can be created: 'AvailablePowerSources','PowerSourceVoltage','PowerSourceCurrent', 'ErrorCode'.
value	The value to be set on the resource, in integer format.

Returns: M2MResourceInstance if created successfully, else NULL.

bool M2MDevice::delete_resource ( DeviceResource resource )

Deletes the resource with the given resource enum. Mandatory resources cannot be deleted.

Parameters

resource The name of the resource to be deleted.

Returns: True if deleted, else false.

bool M2MDevice::delete_resource_instance	(	DeviceResource	resource,
		uint16_t	instance_id
	)

Deletes the resource with the given resource enum. Mandatory resources cannot be deleted.

Parameters

resource	The name of the resource to be deleted.
instance_id	The instance ID of the resource.

Returns: True if deleted, else false.

bool M2MDevice::is_resource_present ( DeviceResource resource ) const

Indicates whether the resource instance with the given resource enum exists or not.

Parameters

resource The resource enum.

Returns: True if at least one instance exists, else false.

uint16_t M2MDevice::per_resource_count ( DeviceResource resource ) const

Returns the number of resources for a given resource enum.

Parameters

resource The resource enum.

Returns: The number of resources for a given resource enum. Returns 1 for the mandatory resources. Can be 0 as well if no instances exist for an optional resource.

int64_t M2MDevice::resource_value_int	(	DeviceResource	resource,
		uint16_t	instance_id = `0`
	)		const

Returns the value of the given resource key name, in integer format.

Parameters

resource	With this function, the following resources can return a value: 'AvailablePowerSources','PowerSourceVoltage','PowerSourceCurrent', 'BatteryLevel', 'BatteryStatus', 'MemoryFree', 'MemoryTotal', 'ErrorCode', 'CurrentTime'.
instance_id	The instance ID of the resource, default is 0

Returns: The value associated with that resource. If the resource is not valid -1 is returned.

String M2MDevice::resource_value_string	(	DeviceResource	resource,
		uint16_t	instance_id = `0`
	)		const

Returns the value of the given resource enum, in string format.

Parameters

resource	With this function, the following resources can return a value: 'Manufacturer', 'DeviceType','ModelNumber','SerialNumber', 'HardwareVersion', 'FirmwareVersion', 'SoftwareVersion', 'UTCOffset', 'Timezone', 'SupportedBindingMode'.
instance_id	The instance ID of the resource, default is 0.

Returns: The value associated with that resource. If the resource is not valid NULL is returned.

bool M2MDevice::set_resource_value	(	DeviceResource	resource,
		const String &	value,
		uint16_t	instance_id = `0`
	)

Sets the value of the given resource enum.

Parameters

resource	With this function, a value can be set for the following resources: 'Manufacturer', 'DeviceType','ModelNumber','SerialNumber', 'HardwareVersion', 'FirmwareVersion', 'SoftwareVersion', 'UTCOffset', 'Timezone', 'SupportedBindingMode'.
value	The value to be set on the resource, in string format.
instance_id	The instance ID of the resource, default is 0.

Returns: True if successfully set, else false.

bool M2MDevice::set_resource_value	(	DeviceResource	resource,
		int64_t	value,
		uint16_t	instance_id = `0`
	)

Sets the value of the given resource enum.

Parameters

resource	With this function, a value can be set for the following resources: 'AvailablePowerSources','PowerSourceVoltage','PowerSourceCurrent', 'BatteryLevel', 'BatteryStatus', 'MemoryFree', 'MemoryTotal', 'ErrorCode', 'CurrentTime'.
value	The value to be set on the resource, in integer format.
instance_id	The instance ID of the resource, default is 0.

Returns: True if successfully set, else false.

uint16_t M2MDevice::total_resource_count ( ) const

Returns the number of resources for the whole device object.

Returns: Total number of resources belonging to the device object.

The documentation for this class was generated from the following file:

mbed-cloud-client/mbed-client/mbed-client/m2mdevice.h

Documentation

Public Types

Public Member Functions

Static Public Member Functions

Static Protected Attributes

Friends

Additional Inherited Members

Detailed Description

Member Function Documentation