mbed Connector Endpoint interface. This interface permits a mbed endpoint to easily setup MDS resources and emit those resources to an MDS server.

Dependents:   IoT_LED_demo ServoTest uWater_Project hackathon ... more

api/DynamicResource.h

Committer:
sam_grove
Date:
2015-01-27
Revision:
2:853f9ecc12df
Parent:
0:b438482ebbfc
Child:
21:8487990a3baa

File content as of revision 2:853f9ecc12df:

/**
 * @file    DynamicResource.h
 * @brief   mbed CoAP Endpoint Dynamic Resource class
 * @author  Doug Anson/Chris Paola
 * @version 1.0
 * @see
 *
 * Copyright (c) 2014
 *
 * 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.
 */

#ifndef __DYNAMIC_RESOURCE_H__
#define __DYNAMIC_RESOURCE_H__

// Base Class
#include "Resource.h"

// NSDL Support
#include "nsdl_support.h"

/** DynamicResource class
 */
class DynamicResource : public Resource<string>
{
public:
    /**
    Default constructor (char strings)
    @param logger input logger instance for this resource
    @param name input the Resource URI/Name
    @param res_type input type for the Resource
    @param res_mask input the resource enablement mask (GET, PUT, etc...)
    @param observable input the resource is Observable (default: FALSE)
    */
    DynamicResource(const Logger *logger,const char *name,const char *res_type,uint8_t res_mask,const bool observable = false);

    /**
    Default constructor (char strings)
    @param logger input logger instance for this resource
    @param name input the Resource URI/Name
    @param res_type input type for the Resource
    @param value input initial value for the Resource
    @param res_mask input the resource enablement mask (GET, PUT, etc...)
    @param observable input the resource is Observable (default: FALSE)
    */
    DynamicResource(const Logger *logger,const char *name,const char *res_type,const string value,uint8_t res_mask,const bool observable = false);

    /**
    constructor with string buffer for name
    @param logger input logger instance for this resource
    @param name input the Resource URI/Name
    @param res_type input type for the Resource
    @param value input initial value for the Resource
    @param res_mask input the resource enablement mask (GET, PUT, etc...)
    @param observable input the resource is Observable (default: FALSE)
    */
    DynamicResource(const Logger *logger,const string name,const string res_type,const string value,uint8_t res_mask,const bool observable = false);

    /**
    Copy constructor
    @param resource input the DynamicResource that is to be deep copied
    */
    DynamicResource(const DynamicResource &resource);

    /**
    Destructor
    */
    virtual ~DynamicResource();

    /**
    Bind resource to endpoint
    @param p input pointer to the endpoint resources necessary for binding
    */
    virtual void bind(void *p);

    /**
    Process the CoAP message
    @param received_coap_ptr input the received coap pointer
    @param address input the NSDL address pointer
    @param proto input the NSDL protocol pointer
    @return 0 - success, 1 - failure
    */
    uint8_t process(sn_coap_hdr_s *received_coap_ptr, sn_nsdl_addr_s *address, sn_proto_info_s *proto);

    /**
    Resource value getter (REQUIRED: must be implemented in derived class as all Binders MUST support and implement GET)
    @returns string value of the resource
    */
    virtual string get() = 0;

    /**
    Resource value setter (OPTIONAL: defaulted noop if not derived. Binders MAY implement PUT if needed)
    @param string value of the resource
    */
    virtual void put(const string value);

protected:

private:

    string      m_res_type;
    uint8_t     m_res_mask;
    bool        m_observable;

    // convenience method to create a string from the NSDL CoAP data buffers...
    string coapDataToString(uint8_t *coap_data_ptr,int coap_data_ptr_length);
};

#endif // __DYNAMIC_RESOURCE_H__