molstar
Version:
A comprehensive macromolecular library.
69 lines • 2.75 kB
JavaScript
/**
* Copyright (c) 2017 mol* contributors, licensed under MIT, See LICENSE file for more info.
*
* @author David Sehnal <david.sehnal@gmail.com>
*/
import { __awaiter, __generator } from "tslib";
import * as Data from '../data-model';
import { Field } from './field';
import { ReaderResult as Result } from '../../result';
import { decodeMsgPack } from '../../../common/msgpack/decode';
import { Task } from '../../../../mol-task';
function checkVersions(min, current) {
for (var i = 0; i < 2; i++) {
if (min[i] > current[i])
return false;
}
return true;
}
function Category(data) {
var map = Object.create(null);
var cache = Object.create(null);
for (var _i = 0, _a = data.columns; _i < _a.length; _i++) {
var col = _a[_i];
map[col.name] = col;
}
return {
rowCount: data.rowCount,
name: data.name.substr(1),
fieldNames: data.columns.map(function (c) { return c.name; }),
getField: function (name) {
var col = map[name];
if (!col)
return void 0;
if (!!cache[name])
return cache[name];
cache[name] = Field(col);
return cache[name];
}
};
}
export function parseCifBinary(data) {
var _this = this;
return Task.create('Parse BinaryCIF', function (ctx) { return __awaiter(_this, void 0, void 0, function () {
var minVersion, unpacked, file;
return __generator(this, function (_a) {
minVersion = [0, 3];
try {
unpacked = decodeMsgPack(data);
if (!checkVersions(minVersion, unpacked.version.match(/(\d)\.(\d)\.\d/).slice(1).map(function (v) { return +v; }))) {
return [2 /*return*/, Result.error("Unsupported format version. Current " + unpacked.version + ", required " + minVersion.join('.') + ".")];
}
file = Data.CifFile(unpacked.dataBlocks.map(function (block) {
var cats = Object.create(null);
for (var _i = 0, _a = block.categories; _i < _a.length; _i++) {
var cat = _a[_i];
cats[cat.name.substr(1)] = Category(cat);
}
return Data.CifBlock(block.categories.map(function (c) { return c.name.substr(1); }), cats, block.header);
}));
return [2 /*return*/, Result.success(file)];
}
catch (e) {
return [2 /*return*/, Result.error('' + e)];
}
return [2 /*return*/];
});
}); });
}
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