@ngageoint/geopackage
Version:
GeoPackage JavaScript Library
169 lines • 9.12 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
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return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
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case 0: case 1: t = op; break;
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var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.GeoPackageAPI = void 0;
var geoPackage_1 = require("./geoPackage");
var geoPackageConnection_1 = require("./db/geoPackageConnection");
var geoPackageValidate_1 = require("./validate/geoPackageValidate");
var canvas_1 = require("./canvas/canvas");
var path_1 = __importDefault(require("path"));
var fs_1 = __importDefault(require("fs"));
/**
* This module is the entry point to the GeoPackage API, providing static
* methods for opening and building GeoPackage files.
*/
var GeoPackageAPI = /** @class */ (function () {
function GeoPackageAPI() {
}
/**
* In Node, open a GeoPackage file at the given path, or in a browser, load an
* in-memory GeoPackage from the given byte array.
* @param {string|Uint8Array|Buffer} gppathOrByteArray path to the GeoPackage file or `Uint8Array` of GeoPackage bytes
* @return {Promise<GeoPackage>} promise that resolves with the open {@link module:geoPackage~GeoPackage} object or rejects with an `Error`
*/
GeoPackageAPI.open = function (gppathOrByteArray) {
return __awaiter(this, void 0, void 0, function () {
var geoPackage, valid, e_1, connection, e_2;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
valid = typeof gppathOrByteArray !== 'string' ||
(typeof gppathOrByteArray === 'string' &&
(gppathOrByteArray.indexOf('http') === 0 ||
!geoPackageValidate_1.GeoPackageValidate.validateGeoPackageExtension(gppathOrByteArray)));
if (!valid) {
throw new Error('Invalid GeoPackage - Invalid GeoPackage Extension');
}
_a.label = 1;
case 1:
_a.trys.push([1, 3, , 4]);
return [4 /*yield*/, canvas_1.Canvas.initializeAdapter()];
case 2:
_a.sent();
return [3 /*break*/, 4];
case 3:
e_1 = _a.sent();
throw new Error('Unable to initialize canvas.');
case 4:
_a.trys.push([4, 6, , 7]);
return [4 /*yield*/, geoPackageConnection_1.GeoPackageConnection.connect(gppathOrByteArray)];
case 5:
connection = _a.sent();
if (gppathOrByteArray && typeof gppathOrByteArray === 'string') {
geoPackage = new geoPackage_1.GeoPackage(path_1.default.basename(gppathOrByteArray), gppathOrByteArray, connection);
}
else {
geoPackage = new geoPackage_1.GeoPackage('geopackage', undefined, connection);
}
return [3 /*break*/, 7];
case 6:
e_2 = _a.sent();
throw new Error('Unable to open GeoPackage.');
case 7: return [2 /*return*/, geoPackage];
}
});
});
};
/**
* In Node, create a GeoPackage file at the given file path, or in a browser,
* create an in-memory GeoPackage.
* @param {string} gppath path of the created GeoPackage file; ignored in the browser
* @return {Promise<typeof GeoPackage>} promise that resolves with the open {@link module:geoPackage~GeoPackage} object or rejects with an `Error`
*/
GeoPackageAPI.create = function (gppath) {
return __awaiter(this, void 0, void 0, function () {
var geoPackage, valid, e_3, connection, e_4;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
valid = typeof gppath !== 'string' ||
(typeof gppath === 'string' && !geoPackageValidate_1.GeoPackageValidate.validateGeoPackageExtension(gppath));
if (!valid) {
throw new Error('Invalid GeoPackage');
}
if (typeof process !== 'undefined' && process.version && gppath) {
try {
fs_1.default.mkdirSync(path_1.default.dirname(gppath));
}
catch (e) {
// it's fine if we can't create the directory
}
}
_a.label = 1;
case 1:
_a.trys.push([1, 3, , 4]);
return [4 /*yield*/, canvas_1.Canvas.initializeAdapter()];
case 2:
_a.sent();
return [3 /*break*/, 4];
case 3:
e_3 = _a.sent();
throw new Error('Unable to initialize canvas.');
case 4:
_a.trys.push([4, 7, , 8]);
return [4 /*yield*/, geoPackageConnection_1.GeoPackageConnection.connect(gppath)];
case 5:
connection = _a.sent();
connection.setApplicationId();
if (gppath) {
geoPackage = new geoPackage_1.GeoPackage(path_1.default.basename(gppath), gppath, connection);
}
else {
geoPackage = new geoPackage_1.GeoPackage('geopackage', undefined, connection);
}
return [4 /*yield*/, geoPackage.createRequiredTables()];
case 6:
_a.sent();
geoPackage.createSupportedExtensions();
return [3 /*break*/, 8];
case 7:
e_4 = _a.sent();
throw new Error('Unable to create GeoPackage.');
case 8: return [2 /*return*/, geoPackage];
}
});
});
};
GeoPackageAPI.version = '3.0.0';
return GeoPackageAPI;
}());
exports.GeoPackageAPI = GeoPackageAPI;
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