Diff: simple-mbed-cloud-client/mbed-cloud-client/source/SimpleM2MResource.cpp

Revision:

0:6b753f761943

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/simple-mbed-cloud-client/mbed-cloud-client/source/SimpleM2MResource.cpp	Fri Oct 12 21:22:49 2018 +0000
@@ -0,0 +1,321 @@
+// ----------------------------------------------------------------------------
+// Copyright 2016-2017 ARM Ltd.
+//
+// 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-cloud-client/SimpleM2MResource.h"
+#include "mbed-trace/mbed_trace.h"
+
+#include <ctype.h>
+
+#include<stdio.h>
+
+#define TRACE_GROUP "mClt"
+
+
+SimpleM2MResourceBase::SimpleM2MResourceBase()
+: _client(NULL), _route("")
+{
+    tr_debug("SimpleM2MResourceBase::SimpleM2MResourceBase()");
+}
+
+SimpleM2MResourceBase::SimpleM2MResourceBase(MbedCloudClient* client, string route)
+: _client(client),_route(route)
+{
+    tr_debug("SimpleM2MResourceBase::SimpleM2MResourceBase(), resource name %s\r\n", _route.c_str());
+}
+
+SimpleM2MResourceBase::~SimpleM2MResourceBase()
+{
+}
+
+bool SimpleM2MResourceBase::define_resource_internal(std::string v, M2MBase::Operation opr, bool observable)
+{
+    tr_debug("SimpleM2MResourceBase::define_resource_internal(), resource name %s!\r\n", _route.c_str());
+
+    vector<string> segments = parse_route(_route.c_str());
+    if (segments.size() != 3) {
+        tr_debug("[SimpleM2MResourceBase] [ERROR] define_resource_internal(), Route needs to have three segments, split by '/' (%s)\r\n", _route.c_str());
+        return false;
+    }
+
+    // segments[1] should be one digit and numeric
+    if (!isdigit(segments.at(1).c_str()[0])) {
+        tr_debug("[SimpleM2MResourceBase] [ERROR] define_resource_internal(), second route segment should be numeric, but was not (%s)\r\n", _route.c_str());
+        return false;
+    }
+
+    int inst_id = atoi(segments.at(1).c_str());
+
+    // Check if object exists
+    M2MObject* obj;
+    map<string,M2MObject*>::iterator obj_it = _client->_objects.find(segments[0]) ;
+    if(obj_it != _client->_objects.end()) {
+      tr_debug("Found object... %s\r\n", segments.at(0).c_str());
+      obj = obj_it->second;
+    } else {
+        tr_debug("Create new object... %s\r\n", segments.at(0).c_str());
+        obj = M2MInterfaceFactory::create_object(segments.at(0).c_str());
+        if (!obj) {
+            return false;
+        }
+        _client->_objects.insert(std::pair<string, M2MObject*>(segments.at(0), obj));
+    }
+
+    // Check if object instance exists
+    M2MObjectInstance* inst = obj->object_instance(inst_id);
+    if(!inst) {
+        tr_debug("Create new object instance... %s\r\n", segments.at(1).c_str());
+        inst = obj->create_object_instance(inst_id);
+        if(!inst) {
+            return false;
+        }
+    }
+
+    // @todo check if the resource exists yet
+    M2MResource* res = inst->resource(segments.at(2).c_str());
+    if(!res) {
+        res = inst->create_dynamic_resource(segments.at(2).c_str(), "",
+            M2MResourceInstance::STRING, observable);
+        if(!res) {
+            return false;
+        }
+        res->set_operation(opr);
+        res->set_value((uint8_t*)v.c_str(), v.length());
+
+        _client->_resources.insert(pair<string, M2MResource*>(_route, res));
+        _client->register_update_callback(_route, this);
+    }
+
+    return true;
+}
+
+vector<string> SimpleM2MResourceBase::parse_route(const char* route)
+{
+    string s(route);
+    vector<string> v;
+    std::size_t found = s.find_first_of("/");
+
+    while (found!=std::string::npos) {
+        v.push_back(s.substr(0,found));
+        s = s.substr(found+1);
+        found=s.find_first_of("/");
+        if(found == std::string::npos) {
+            v.push_back(s);
+        }
+    }
+    return v;
+}
+
+string SimpleM2MResourceBase::get() const
+{
+    tr_debug("SimpleM2MResourceBase::get() resource (%s)", _route.c_str());
+    if (!_client->_resources.count(_route)) {
+        tr_debug("[SimpleM2MResourceBase] [ERROR] No such route (%s)\r\n", _route.c_str());
+        return string();
+    }
+
+    // otherwise ask mbed Client...
+    uint8_t* buffIn = NULL;
+    uint32_t sizeIn;
+    _client->_resources[_route]->get_value(buffIn, sizeIn);
+
+    string s((char*)buffIn, sizeIn);
+    tr_debug("SimpleM2MResourceBase::get() resource value (%s)", s.c_str());
+    free(buffIn);
+    return s;
+}
+
+bool SimpleM2MResourceBase::set(string v)
+{
+    // Potentially set() happens in InterruptContext. That's not good.
+    tr_debug("SimpleM2MResourceBase::set() resource (%s)", _route.c_str());
+    if (!_client->_resources.count(_route)) {
+        tr_debug("[SimpleM2MResourceBase] [ERROR] No such route (%s)\r\n", _route.c_str());
+        return false;
+    }
+
+    if (v.length() == 0) {
+        _client->_resources[_route]->clear_value();
+    }
+    else {
+        _client->_resources[_route]->set_value((uint8_t*)v.c_str(), v.length());
+    }
+
+    return true;
+}
+
+bool SimpleM2MResourceBase::set(const int& v)
+{
+    char buffer[20];
+    int size = sprintf(buffer,"%d",v);
+    std::string stringified(buffer,size);
+
+    return set(stringified);
+}
+
+bool SimpleM2MResourceBase::set_post_function(void(*fn)(void*))
+{
+    //TODO: Check the resource exists with right operation being set or append the operation into it.
+    M2MResource *resource = get_resource();
+    if(!resource) {
+        return false;
+    }
+    M2MBase::Operation op = resource->operation();
+    op = (M2MBase::Operation)(op | M2MBase::POST_ALLOWED);
+    resource->set_operation(op);
+
+    _client->_resources[_route]->set_execute_function(execute_callback_2(fn));
+    return true;
+}
+
+bool SimpleM2MResourceBase::set_post_function(execute_callback fn)
+{
+    //TODO: Check the resource exists with right operation being set or append the operation into it.
+    M2MResource *resource = get_resource();
+    if(!resource) {
+        return false;
+    }
+    M2MBase::Operation op = resource->operation();
+    op = (M2MBase::Operation)(op | M2MBase::POST_ALLOWED);
+    resource->set_operation(op);
+
+    // No clue why this is not working?! It works with class member, but not with static function...
+    _client->_resources[_route]->set_execute_function(fn);
+    return true;
+}
+
+M2MResource* SimpleM2MResourceBase::get_resource()
+{
+    if (!_client->_resources.count(_route)) {
+        tr_debug("[SimpleM2MResourceBase] [ERROR] No such route (%s)\r\n", _route.c_str());
+        return NULL;
+    }
+    return _client->_resources[_route];
+}
+
+SimpleM2MResourceString::SimpleM2MResourceString(MbedCloudClient* client,
+                               const char* route,
+                               string v,
+                               M2MBase::Operation opr,
+                               bool observable,
+                               FP1<void, string> on_update)
+: SimpleM2MResourceBase(client,route),_on_update(on_update)
+{
+    tr_debug("SimpleM2MResourceString::SimpleM2MResourceString() creating (%s)\r\n", route);
+    define_resource_internal(v, opr, observable);
+}
+
+SimpleM2MResourceString::SimpleM2MResourceString(MbedCloudClient* client,
+                               const char* route,
+                               string v,
+                               M2MBase::Operation opr,
+                               bool observable,
+                               void(*on_update)(string))
+
+: SimpleM2MResourceBase(client,route)
+{
+    tr_debug("SimpleM2MResourceString::SimpleM2MResourceString() overloaded creating (%s)\r\n", route);
+    FP1<void, string> fp;
+    fp.attach(on_update);
+    _on_update = fp;
+    define_resource_internal(v, opr, observable);
+}
+
+SimpleM2MResourceString::~SimpleM2MResourceString()
+{
+}
+
+string SimpleM2MResourceString::operator=(const string& new_value)
+{
+    tr_debug("SimpleM2MResourceString::operator=()");
+    set(new_value);
+    return new_value;
+}
+
+SimpleM2MResourceString::operator string() const
+{
+    tr_debug("SimpleM2MResourceString::operator string()");
+    string value = get();
+    return value;
+}
+
+void SimpleM2MResourceString::update()
+{
+    string v = get();
+    _on_update(v);
+}
+
+SimpleM2MResourceInt::SimpleM2MResourceInt(MbedCloudClient* client,
+                         const char* route,
+                         int v,
+                         M2MBase::Operation opr,
+                         bool observable,
+                         FP1<void, int> on_update)
+: SimpleM2MResourceBase(client,route),_on_update(on_update)
+{
+    tr_debug("SimpleM2MResourceInt::SimpleM2MResourceInt() creating (%s)\r\n", route);
+    char buffer[20];
+    int size = sprintf(buffer,"%d",v);
+    std::string stringified(buffer,size);
+    define_resource_internal(stringified, opr, observable);
+}
+
+SimpleM2MResourceInt::SimpleM2MResourceInt(MbedCloudClient* client,
+                         const char* route,
+                         int v,
+                         M2MBase::Operation opr,
+                         bool observable,
+                         void(*on_update)(int))
+: SimpleM2MResourceBase(client,route)
+{
+    tr_debug("SimpleM2MResourceInt::SimpleM2MResourceInt() overloaded creating (%s)\r\n", route);
+    FP1<void, int> fp;
+    fp.attach(on_update);
+    _on_update = fp;
+    char buffer[20];
+    int size = sprintf(buffer,"%d",v);
+    std::string stringified(buffer,size);
+    define_resource_internal(stringified, opr, observable);
+}
+
+SimpleM2MResourceInt::~SimpleM2MResourceInt()
+{
+}
+
+int SimpleM2MResourceInt::operator=(int new_value)
+{
+    set(new_value);
+    return new_value;
+}
+
+SimpleM2MResourceInt::operator int() const
+{
+    string v = get();
+    if (v.empty()) return 0;
+
+    return atoi((const char*)v.c_str());
+}
+
+void SimpleM2MResourceInt::update()
+{
+    string v = get();
+    if (v.empty()) {
+        _on_update(0);
+    } else {
+        _on_update(atoi((const char*)v.c_str()));
+    }
+}