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plan-builder-base.js
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146 lines (136 loc) · 4.91 KB
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/*
* Copyright 2017 MarkLogic Corporation
*
* 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.
*/
'use strict';
const marklogic = require('../');
const testconfig = require('../etc/test-config');
const dbWriter = marklogic.createDatabaseClient(testconfig.restWriterConnection);
const dbReader = marklogic.createDatabaseClient(testconfig.restReaderConnection);
// TODO: remove temporary hack
const PlanBuilder = require('../lib/plan-builder');
const planBuilder = PlanBuilder.builder;
// TODO: remove temporary hack
const testlib = require('../etc/test-lib');
const rowMgrOld = testlib.createManager(dbReader);
const rowMgr = dbReader.rows;
const lit = planBuilder.fromLiterals({rowId:1});
function makeInput(values) {
if (values === void 0) {
return lit;
}
return lit.select(values.map((value, i) => planBuilder.as(String(i + 1), value)));
}
function makeTest(input, expression) {
return input.select(planBuilder.as('t', expression));
}
// TODO: delete temporary hack
function execPlanOld(query, bindings, output, accept) {
const rowOutput = (output === void 0 || output === null) ? 'object' : output;
const baseEndpoint = '/v1/rows?output='+rowOutput;
const endpoint = (bindings === void 0 || bindings === null) ? baseEndpoint :
baseEndpoint+Object.keys(bindings).map(key => {
const binding = bindings[key];
const isSimple = (typeof binding !== 'object' || (binding instanceof String) ||
(binding instanceof Number) || (binding instanceof Boolean) || binding === null);
const bindValue = isSimple ? binding : binding.value;
if (bindValue === void 0) {
throw new Error(`binding for ${key} without value: ${binding}`);
}
const type = isSimple ? (void 0) : binding.type;
const lang = isSimple ? (void 0) : binding.lang;
if (type !== void 0 && lang !== void 0) {
throw new Error(`binding for ${key} with type and lang: ${binding}`);
}
const name = encodeURIComponent(key);
const bindName =
(type !== void 0) ? name+':'+type :
(lang !== void 0) ? name+'@'+lang :
name;
return `&bind:${bindName}=${encodeURIComponent(bindValue)}`;
}).join('');
// console.log(JSON.stringify(query.export(),null,2));
// console.log(endpoint);
return rowMgrOld.post({
endpoint: endpoint,
headers: {
'content-type': 'application/json',
accept: (accept === void 0 || accept === null) ? 'application/json' : accept
},
body: query.export()
});
}
function execPlan(query, bindings, output) {
const plan = JSON.stringify(query.export());
// console.log(plan);
const rowOutput = (output === void 0 || output === null) ? 'object' : output;
if (bindings === void 0 || bindings === null) {
return rowMgr.query(plan, {format: 'json', output: rowOutput});
}
return rowMgr.query(plan, {format: 'json', output: rowOutput, bindings:bindings});
}
function explainPlan(query, format) {
const plan = JSON.stringify(query.export());
return rowMgr.explain(plan, {
format: (format === void 0 || format === null) ? 'json' : format
});
}
function testPlan(values, expression) {
return execPlan(makeTest(makeInput(values), expression));
}
function getResults(response) {
if (response.statusCode >= 500) {
const err = new Error(response.statusCode);
err.response = response;
throw err;
}
if (Array.isArray(response) && response.length > 0 && Array.isArray(response[0].columns)) {
return response.slice(1);
}
/*
const rows = response.rows;
if (rows === void 0) {
return response;
}
return rows;
*/
return response;
}
function getResult(response) {
return getResults(response)[0].t;
}
function makeSelectCall(list) {
return lit.select(list);
}
function makeSelectExport(list) {
return {$optic:{ns:'op', fn:'operators', args:[
{ns:'op', fn:'from-literals', args:[[{rowId:1}]]},
{ns:'op', fn:'select', args: Array.isArray(list) ? list : [list] }
]}};
}
module.exports = {
dbReader: dbReader,
dbWriter: dbWriter,
planBuilder: planBuilder,
execPlan: execPlan,
execPlanOld: execPlanOld, // TODO: delete temporary hack
explainPlan: explainPlan,
getResult: getResult,
getResults: getResults,
makeInput: makeInput,
makeSelectCall: makeSelectCall,
makeSelectExport: makeSelectExport,
makeTest: makeTest,
testPlan: testPlan
};