@adpt/cloud
Version:
AdaptJS cloud component library
162 lines • 6.39 kB
JavaScript
;
/*
* Copyright 2018-2019 Unbounded Systems, LLC
*
* 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.
*/
Object.defineProperty(exports, "__esModule", { value: true });
const tslib_1 = require("tslib");
const core_1 = require("@adpt/core");
const fs = tslib_1.__importStar(require("fs-extra"));
const graphql_1 = require("graphql");
const js_yaml_1 = require("js-yaml");
const json_stable_stringify_1 = tslib_1.__importDefault(require("json-stable-stringify"));
const path_1 = tslib_1.__importDefault(require("path"));
const url_1 = tslib_1.__importDefault(require("url"));
const swagger2gql_1 = tslib_1.__importDefault(require("../../src/swagger2gql"));
// tslint:disable-next-line:no-var-requires
const fetchu = require("fetchu");
// tslint:disable-next-line:no-var-requires
const swaggerClient = require("swagger-client");
const infoSym = Symbol("dockerInfoSym");
function computeQueryId(clusterId, fieldName, args) {
return json_stable_stringify_1.default({
clusterId,
fieldName,
args,
});
}
const dockerObserveResolverFactory = {
fieldResolvers: (_type, fieldName, isQuery) => {
if (!isQuery)
return;
if (fieldName === "withDockerHost") {
return async (_obj, args, _context) => {
const dockerHost = args.dockerHost;
if (dockerHost === undefined)
throw new Error("No dockerHost specified");
return { [infoSym]: { dockerHost } };
};
}
return async (obj, args, context, _info) => {
const req = await swaggerClient.buildRequest({
spec: dockerSwagger(),
operationId: fieldName,
parameters: args,
requestContentType: "application/json",
responseContentType: "application/json"
});
const dockerHost = obj[infoSym].dockerHost;
if (dockerHost == null)
throw new Error(`Internal error: dockerHost is null`);
const url = url_1.default.parse(dockerHost);
const queryId = computeQueryId(obj[infoSym].dockerHost, fieldName, args);
const ret = (url.protocol === "file:" || url.protocol === "unix:") ?
await fetchu(Object.assign({ socketPath: url.pathname, path: req.url }, req)) :
await fetchu(dockerHost + req.url, req);
context[queryId] = ret; //Overwrite in case data got updated on later query
return ret;
};
}
};
const dockerQueryResolverFactory = {
fieldResolvers: (_type, fieldName, isQuery) => {
if (!isQuery)
return;
if (fieldName === "withDockerHost") {
return async (_obj, args, _context) => {
const dockerHost = args.dockerHost;
if (dockerHost === undefined)
throw new Error("No dockerHost specified");
return { [infoSym]: { dockerHost } };
};
}
return async (obj, args, context, _info) => {
const queryId = computeQueryId(obj[infoSym].dockerHost, fieldName, args);
if (!context)
throw new core_1.ObserverNeedsData();
if (!Object.hasOwnProperty.call(context, queryId))
throw new core_1.ObserverNeedsData();
return context[queryId];
};
}
};
function buildSchema(resolverFactory) {
const schema = swagger2gql_1.default(dockerSwagger(), resolverFactory);
const queryOrig = schema.getQueryType();
if (queryOrig === undefined)
throw new Error("Internal error, invalid schema");
if (queryOrig === null)
throw new Error("Internal Error, invalid schema");
const dockerQuery = Object.create(queryOrig);
dockerQuery.name = "DockerApi";
const query = new graphql_1.GraphQLObjectType({
name: "Query",
fields: () => ({
withDockerHost: {
type: dockerQuery,
args: {
dockerHost: {
type: new graphql_1.GraphQLNonNull(graphql_1.GraphQLString),
}
},
resolve: resolverFactory.fieldResolvers ?
resolverFactory.fieldResolvers(query, "withDockerHost", true) :
() => undefined
}
}),
});
const dockerObserverSchema = new graphql_1.GraphQLSchema({
query
});
return dockerObserverSchema;
}
let _dockerSwagger;
function dockerSwagger() {
if (_dockerSwagger)
return _dockerSwagger;
const text = fs.readFileSync(path_1.default.join(__dirname, "docker_swagger.yaml"));
_dockerSwagger = js_yaml_1.safeLoad(text.toString());
return _dockerSwagger;
}
function buildObserveSchema() {
return buildSchema(dockerObserveResolverFactory);
}
function buildQuerySchema() {
return buildSchema(dockerQueryResolverFactory);
}
//Building these can be very slow so we wait for someone to use our observer
let querySchema;
let observeSchema;
class DockerObserver {
constructor() {
this.observe = async (queries) => {
const observations = {};
if (queries.length > 0) {
if (!observeSchema)
observeSchema = buildObserveSchema();
const waitFor = queries.map((q) => Promise.resolve(graphql_1.execute(observeSchema, q.query, null, observations, q.variables)));
core_1.throwObserverErrors(await Promise.all(waitFor));
}
return { context: observations };
};
}
get schema() {
if (!querySchema)
querySchema = buildQuerySchema();
return querySchema;
}
}
exports.DockerObserver = DockerObserver;
core_1.registerObserver(new DockerObserver());
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