217 lines
7.6 KiB
JavaScript
217 lines
7.6 KiB
JavaScript
// Copyright (c) 2022, 2024, Oracle and/or its affiliates.
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//-----------------------------------------------------------------------------
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//
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// This software is dual-licensed to you under the Universal Permissive License
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// (UPL) 1.0 as shown at https://oss.oracle.com/licenses/upl and Apache License
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// 2.0 as shown at http://www.apache.org/licenses/LICENSE-2.0. You may choose
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// either license.
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//
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// If you elect to accept the software under the Apache License, Version 2.0,
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// the following applies:
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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//-----------------------------------------------------------------------------
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'use strict';
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const constants = require('./constants.js');
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const errors = require('./errors.js');
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const types = require('./types.js');
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const nodbUtil = require("./util.js");
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const vector = require('./impl/datahandlers/vector.js');
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class Settings {
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constructor() {
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this.autoCommit = false;
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this.connectionClass = '';
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this.dbObjectAsPojo = false;
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this.edition = '';
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this.errorOnConcurrentExecute = false;
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this.events = false;
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this.externalAuth = false;
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this.fetchArraySize = 100;
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this.fetchAsBuffer = [];
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this.fetchAsString = [];
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this.lobPrefetchSize = 16384;
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this.maxRows = 0;
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this.outFormat = constants.OUT_FORMAT_ARRAY;
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this.poolIncrement = 1;
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this.poolMax = 4;
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this.poolMaxPerShard = 0;
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this.poolMin = 0;
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this.poolPingInterval = 60;
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this.poolPingTimeout = 5000;
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this.poolTimeout = 60;
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this.prefetchRows = 2;
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this.queueTimeout = 60000;
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this.queueMax = 500;
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this.stmtCacheSize = 30;
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this.thin = true;
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this.thinDriverInitialized = false;
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this.createFetchTypeMap(this.fetchAsString, this.fetchAsBuffer);
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this.fetchTypeHandler = undefined;
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this._JsonId = types.JsonId;
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}
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//---------------------------------------------------------------------------
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// _getDateComponents()
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//
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// Returns the components of a date. DATE and TIMESTAMP data from the
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// database are returned as though they used the JavaScript time zone
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// setting. TIMESTAMP WITH TIME ZONE and TIMESTAMP WITH LOCAL TIME ZONE data
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// are returned in native JavaScript format (since they contain time zone
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// information). This is used only in Thick mode (from node-oracledb 6.0.0).
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//---------------------------------------------------------------------------
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_getDateComponents(useLocal, date) {
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if (useLocal) {
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return [
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date.getFullYear(),
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date.getMonth() + 1,
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date.getDate(),
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date.getHours(),
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date.getMinutes(),
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date.getSeconds(),
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date.getMilliseconds() * 1000 * 1000
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];
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} else {
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return [
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date.getUTCFullYear(),
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date.getUTCMonth() + 1,
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date.getUTCDate(),
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date.getUTCHours(),
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date.getUTCMinutes(),
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date.getUTCSeconds(),
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date.getUTCMilliseconds() * 1000 * 1000
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];
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}
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}
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//---------------------------------------------------------------------------
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// _makeDate()
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//
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// Returns a date from the given components. DATE and TIMESTAMP data from the
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// database are returned as though they used the JavaScript time zone
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// setting. TIMESTAMP WITH TIME ZONE and TIMESTAMP WITH LOCAL TIME ZONE data
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// are returned in native JavaScript format (since they contain time zone
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// information).
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//---------------------------------------------------------------------------
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_makeDate(useLocal, year, month, day, hour, minute, second, fseconds, offset) {
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return nodbUtil.makeDate(useLocal, year, month, day, hour, minute, second, fseconds, offset);
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}
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//---------------------------------------------------------------------------
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// _decodeVector()
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//
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// Returns a typed array by decoding buffer.
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//
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//---------------------------------------------------------------------------
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_decodeVector(buffer) {
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const decoder = new vector.VectorDecoder(buffer);
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return decoder.decode();
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}
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//---------------------------------------------------------------------------
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// _encodeVector()
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//
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// Create a Vector image from typedarray
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//
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//---------------------------------------------------------------------------
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_encodeVector(value) {
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const encoder = new vector.VectorEncoder();
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return encoder.encode(value);
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}
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//---------------------------------------------------------------------------
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// addToOptions()
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//
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// Adds the named settingsto the options, if no option has already been
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// specified.
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//---------------------------------------------------------------------------
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addToOptions(options) {
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for (let i = 1; i < arguments.length; i++) {
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const key = arguments[i];
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if (options[key] === undefined)
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options[key] = this[key];
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}
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}
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//---------------------------------------------------------------------------
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// createFetchTypeMap()
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//
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// Creates the fetch type map. This overrides the default fetch type mapping
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// used by the driver with the contents of the fetchAsString and
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// fetchAsBuffer arrays. The error checking is performed here as well in
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// order to eliminate repeated code.
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// ---------------------------------------------------------------------------
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createFetchTypeMap(fetchAsString, fetchAsBuffer) {
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// create a copy of the default fetch type map
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const map = new Map(types.DB_TYPE_FETCH_TYPE_MAP);
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// adjust map for fetchAsString settings
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for (const element of fetchAsString) {
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switch (element) {
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case types.DB_TYPE_NUMBER:
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map.set(types.DB_TYPE_BINARY_DOUBLE, types.DB_TYPE_VARCHAR);
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map.set(types.DB_TYPE_BINARY_FLOAT, types.DB_TYPE_VARCHAR);
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map.set(types.DB_TYPE_BINARY_INTEGER, types.DB_TYPE_VARCHAR);
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map.set(types.DB_TYPE_NUMBER, types.DB_TYPE_VARCHAR);
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break;
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case types.DB_TYPE_TIMESTAMP:
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map.set(types.DB_TYPE_DATE, types.DB_TYPE_VARCHAR);
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map.set(types.DB_TYPE_TIMESTAMP, types.DB_TYPE_VARCHAR);
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map.set(types.DB_TYPE_TIMESTAMP_TZ, types.DB_TYPE_VARCHAR);
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map.set(types.DB_TYPE_TIMESTAMP_LTZ, types.DB_TYPE_VARCHAR);
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break;
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case types.DB_TYPE_CLOB:
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case types.DB_TYPE_NCLOB:
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map.set(types.DB_TYPE_CLOB, types.DB_TYPE_LONG);
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map.set(types.DB_TYPE_NCLOB, types.DB_TYPE_LONG_NVARCHAR);
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break;
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case types.DB_TYPE_VECTOR:
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map.set(types.DB_TYPE_VECTOR, types.DB_TYPE_LONG);
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break;
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case types.DB_TYPE_RAW:
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map.set(types.DB_TYPE_RAW, types.DB_TYPE_VARCHAR);
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break;
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case types.DB_TYPE_JSON:
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map.set(types.DB_TYPE_JSON, types.DB_TYPE_VARCHAR);
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break;
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default:
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errors.throwErr(errors.ERR_INVALID_TYPE_FOR_CONVERSION);
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}
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}
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// adjust map for fetchAsBuffer settings
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for (const element of fetchAsBuffer) {
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switch (element) {
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case types.DB_TYPE_BLOB:
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map.set(types.DB_TYPE_BLOB, types.DB_TYPE_LONG_RAW);
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break;
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default:
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errors.throwErr(errors.ERR_INVALID_TYPE_FOR_CONVERSION);
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}
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}
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// assign calculated fetchTypeMap for later use
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this.fetchTypeMap = map;
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}
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}
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module.exports = new Settings();
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