C++ Value::isInt方法代码示例

Values Factory::jsonToValues(const Json::Value& values)
{
    Values outValues;

    if (values.isInt())
        outValues.emplace_back(values.asInt());
    else if (values.isDouble())
        outValues.emplace_back(values.asFloat());
    else if (values.isArray())
        for (const auto& v : values)
        {
            if (v.isInt())
                outValues.emplace_back(v.asInt());
            else if (v.isDouble())
                outValues.emplace_back(v.asFloat());
            else if (v.isArray())
                outValues.emplace_back(jsonToValues(v));
            else
                outValues.emplace_back(v.asString());
        }
    else
        outValues.emplace_back(values.asString());

    return outValues;
}

 bool JsonHelper::ToBool( const Json::Value& value, bool defaultResult )
 {
     if ( value.isBool() )
     {
         return value.asBool();
     }
     if ( value.isInt() )
     {
         return (bool)value.asInt();
     }
     if ( value.isDouble() )
     {
         return (bool)value.asDouble();
     }
     if ( value.isUInt() )
     {
         return (bool)value.asUInt();
     }
     if ( value.isString() )
     {
         const std::string& str = value.asString();
         return ( str == "true" || str == "1" );
     }
     return defaultResult;
 }

/**
 * Expected input:
 * {
 * 		alg: "aes",
 * 		keySize : an int - 128/192/256
 * }
 *
 * Output:
 * {
 * 		key: generated key data
 * }
 */
Json::Value AES::generateKey(const std::string & algorithm,
		Json::Value & args) {
	size_t keySize = 128;

	if (args.isMember("keySize")) {
		Json::Value keySizeV = args["keySize"];
		if (!keySizeV.isInt()) {
			throw std::string("keySize must be an int");
		}
		keySize = keySizeV.asInt();
		switch (keySize) {
		case 128:
		case 192:
		case 256:
			// awesome!
			break;
		default:
			throw errorMessage("Not a valid key size: ", keySize);
		}
	}

	AESParams params(*this, SB_AES_CBC, SB_AES_128_BLOCK_BITS, true);

	DataTracker dt;
	AESKey key(params, keySize);
	key.get(dt);

	Json::Value keyData = toJson(dt.data, dt.dataLen);
	Json::Value toReturn;
	toReturn["key"] = keyData;

	return toReturn;
}

            // Read a natural 
            Natural natural(
                Optizelle::Messaging const & msg,
                Json::Value const & json,
                std::string const & name
            ) {
                // Set the error message
                std::string const err_msg = "Invalid JSON parameter: "
                    + name + " contains an invalid natural.";

                // As long as we have an unsigned integer, grab it
                if(json.isUInt())
                    return Natural(Json::Value::UInt64(json.asUInt64()));
                
                // If we have an integer, grab it if it's positive
                else if(json.isInt()) {
                    Integer val(json.asInt64());
                    if(val>=0)
                        return Natural(val);
                    else
                        msg.error(err_msg);

                // Anything else is an error
                } else
                    msg.error(err_msg);

                // We should not hit this point
                throw;
            }

FB::variant jsonValueToVariant( Json::Value root )
{
    Json::Value def;
    if (root.isString())
        return root.asString();
    else if (root.isBool())
        return root.asBool();
    else if (root.isDouble())
        return root.asDouble();
    else if (root.isInt())
        return root.asInt();
    else if (root.isUInt())
        return root.asUInt();
    else if (root.isNull())
        return FB::FBNull();
    else if (root.isArray()) {
        FB::VariantList outList;
        for (size_t i = 0; i < root.size(); ++i) {
            outList.push_back(jsonValueToVariant(root.get(i, def)));
        }
        return outList;
    } else if (root.isObject()) {
        Json::Value::Members members = root.getMemberNames();
        FB::VariantMap outMap;
        for (Json::Value::Members::iterator it = members.begin(); it != members.end(); ++it)
        {
            outMap[*it] = jsonValueToVariant(root.get(*it, def));
        }
        return outMap;
    } else {
        return FB::FBVoid();
    }
}

 static void add(
     MetadataNode&      parent,
     const std::string& name,
     const Json::Value& node
 )
 {
     if      (node.isNull())   { parent.add(name, ""); }
     else if (node.isBool())   { parent.add(name, node.asBool()); }
     else if (node.isInt())    { parent.add(name, node.asInt64()); }
     else if (node.isUInt())   { parent.add(name, node.asUInt64()); }
     else if (node.isDouble()) { parent.add(name, node.asDouble()); }
     else if (node.isString()) { parent.add(name, node.asString()); }
     else if (node.isObject())
     {
         MetadataNode object = parent.add(name);
         for (const std::string& name: node.getMemberNames())
         {
             add(object, name, node[name]);
         }
     }
     else if (node.isArray())
     {
         for (const Json::Value& item: node)
         {
             add(parent, name, item);
         }
     }
 }

bool ConfigFile::load_config() {
    std::ifstream file;
    file.open(get_config_file());

    if (!file) {
        LOGE("Config file %s not found", get_config_file().c_str());
        return false;
    }

    Json::Reader reader;
    bool success = reader.parse(file, m_root, false);

    file.close();

    if (!success) {
        LOGE("Failed to parse configuration file");
        return false;
    }

    const Json::Value jsonversion = m_root[CONF_VERSION];
    if (jsonversion.isInt()) {
        m_version = jsonversion.asInt();
    } else {
        return false;
    }

    return true;
}

 bool Deserialize ( const Json::Value& json_val, bool& obj_val )
 {
     /**
      * Warning: the default type may be int, even you Serialize a bool value
      */
     if ( json_val.isBool () )
     {
         obj_val = json_val.asBool ();
         return true;
     }
     else if ( json_val.isInt () )
     {
         int tmp = json_val.asInt ();
         if ( ! tmp )
         {
             obj_val = false;
         }
         else
         {
             obj_val = true;
         }
         return true;
     }
     return false;
 }

		int readInt(std::string key, int def)
		{
			Json::Value val = root.get(key, def);
			if (val.isInt())
				return val.asInt();
			else
				return def;
		}

/// 从 Json 解析数据到 dictNode 中
static void parseFromJsonToDictionary(const Json::Value & jsonNode, CCDictionary * dictNode)
{
	Json::Value::Members members = jsonNode.getMemberNames();
	for (Json::Value::Members::iterator beg = members.begin(); beg != members.end(); ++beg)
	{
        std::string name = *beg;
		Json::Value child = jsonNode[name];
		
		if (child.isArray())
		{
			CCArray * arr = CCArray::create();
			parseFromJsonToArray(child, arr);
			dictNode->setObject(arr, name);
		}
		else if (child.isObject())
		{
			CCDictionary * dict = CCDictionary::create();
			parseFromJsonToDictionary(child, dict);
			dictNode->setObject(dict, name);
		}
		else if (child.isString())
		{
			CCString * str = CCString::createWithFormat("%s", child.asCString());
			dictNode->setObject(str, name);
		}
		else if (child.isInt())
		{
			CCString * str = CCString::createWithFormat("%d", child.asInt());
			dictNode->setObject(str, name);
		}
		else if (child.isUInt())
		{
			CCString * str = CCString::createWithFormat("%u", child.asUInt());
			dictNode->setObject(str, name);
		}
		else if (child.isInt64())
		{
			CCString * str = CCString::createWithFormat("%lld", child.asInt64());
			dictNode->setObject(str, name);
			
		}
		else if (child.isUInt64())
		{
			CCString * str = CCString::createWithFormat("%llu", child.asUInt64());
			dictNode->setObject(str, name);
		}
		else if (child.isDouble())
		{
			CCString * str = CCString::createWithFormat("%f", child.asDouble());
			dictNode->setObject(str, name);
		}
		else if (child.isBool())
		{
			CCString * str = CCString::createWithFormat("%d", child.asInt());
			dictNode->setObject(str, name);
		}
	}
}

void JsonTree::init( const string &key, const Json::Value &value, bool setType, NodeType nodeType, ValueType valueType )
{
    mKey = key;
	mNodeType = nodeType;
	mParent = 0;
	mValue = "";
	mValueType = valueType;

	if( ! value.isNull() && ( value.isArray() || value.isObject() ) ) {
        if( value.isArray() ) {
            mNodeType = NODE_ARRAY;
            for ( uint32_t i = 0; i < value.size(); i++ ) {
                pushBack( JsonTree( "", value[ i ] ) );
            }
        }
		else if( value.isObject() ) {
            mNodeType = NODE_OBJECT;
            Json::Value::Members members = value.getMemberNames();
            for( Json::Value::Members::const_iterator memberIt = members.begin(); memberIt != members.end(); ++memberIt ) {
				string key = *memberIt;
                pushBack( JsonTree( key, value[ key ] ) );
            }
        }
    }
	else {
		if( value.isBool() ) {
			mValue = toString( value.asBool() );
			if( setType ) {
				mValueType = VALUE_BOOL;
			}
		}
		else if ( value.isDouble() ) { 
			mValue = toString( value.asDouble() );
			if ( setType ) {
				mValueType = VALUE_DOUBLE;
			}
		}
		else if ( value.isInt() ) { 
			mValue = toString( value.asInt() );
			if ( setType ) {
				mValueType = VALUE_INT;
			}
		}
		else if ( value.isString() ) { 
			mValue = toString( value.asString() );
			if ( setType ) {
				mValueType = VALUE_STRING;
			}
		}
		else if ( value.isUInt() ) { 
			mValue = toString( value.asUInt() );
			if ( setType ) {
				mValueType = VALUE_UINT;
			}
		}
	}
}

bool QSanProtocol::Utils::tryParse(const Json::Value &arg, double &result) {
    if (arg.isDouble())
        result = arg.asDouble();
    else if (arg.isInt())
        result = arg.asInt();
    else
        return false;
    return true;
}

bool GetUInt32(const Json::Value& value, uint32_t* out) {
  if (value.isNull()) {
    return false;
  }
  if (!(value.isInt() || value.isUInt())) {
    return false;
  }
  *out = value.asUInt();
  return true;
}

bool GetInt32(const Json::Value& value, int32_t* out) {
  if (value.isNull()) {
    return false;
  }
  if (!value.isInt()) {
    return false;
  }
  *out = value.asInt();
  return true;
}

int Utils::GetIntFromJsonValue(Json::Value &value, int defaultValue) {
    int res = defaultValue;

    // some json responses have ints formated as strings
    if (value.isString())
        res = StringToInt(value.asString());
    else if (value.isInt())
        res = value.asInt();

    return res;
}