warehouse
Version:
Simple JSON-based database
87 lines • 2.55 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const schematype_1 = __importDefault(require("../schematype"));
const validation_1 = __importDefault(require("../error/validation"));
/**
* Boolean schema type.
*/
class SchemaTypeBuffer extends schematype_1.default {
/**
* @param {string} name
* @param {object} [options]
* @param {boolean} [options.required=false]
* @param {boolean|Function} [options.default]
* @param {string} [options.encoding=hex]
*/
constructor(name, options) {
super(name, Object.assign({
encoding: 'hex'
}, options));
}
cast(value_, data) {
const value = super.cast(value_, data);
if (value == null || Buffer.isBuffer(value))
return value;
if (typeof value === 'string')
return Buffer.from(value, this.options.encoding);
if (Array.isArray(value))
return Buffer.from(value);
}
/**
* Validates data.
*
* @param {*} value_
* @param {Object} data
* @return {Buffer}
*/
validate(value_, data) {
const value = super.validate(value_, data);
if (!Buffer.isBuffer(value)) {
throw new validation_1.default(`\`${value}\` is not a valid buffer!`);
}
return value;
}
/**
* Compares between two buffers.
*
* @param {Buffer} a
* @param {Buffer} b
* @return {Number}
*/
compare(a, b) {
if (Buffer.isBuffer(a)) {
return Buffer.isBuffer(b) ? a.compare(b) : 1;
}
return Buffer.isBuffer(b) ? -1 : 0;
}
parse(value) {
return value ? Buffer.from(value, this.options.encoding) : value;
}
/**
* Transforms data into number to compress the size of database files.
*
* @param {Buffer} value
* @return {String}
*/
value(value) {
return Buffer.isBuffer(value) ? value.toString(this.options.encoding) : value;
}
/**
* Checks the equality of data.
*
* @param {Buffer} value
* @param {Buffer} query
* @return {Boolean}
*/
match(value, query) {
if (Buffer.isBuffer(value) && Buffer.isBuffer(query)) {
return value.equals(query);
}
return value === query;
}
}
exports.default = SchemaTypeBuffer;
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