bolt-protocol-v5x5.js•8.77 kB
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
/**
* Copyright (c) "Neo4j"
* Neo4j Sweden AB [https://neo4j.com]
*
* 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.
*/
var bolt_protocol_v5x4_1 = __importDefault(require("./bolt-protocol-v5x4"));
var bolt_protocol_v5x5_transformer_1 = __importDefault(require("./bolt-protocol-v5x5.transformer"));
var transformer_1 = __importDefault(require("./transformer"));
var request_message_1 = __importDefault(require("./request-message"));
var stream_observers_1 = require("./stream-observers");
var neo4j_driver_core_1 = require("neo4j-driver-core");
var _a = neo4j_driver_core_1.internal.constants, BOLT_PROTOCOL_V5_5 = _a.BOLT_PROTOCOL_V5_5, FETCH_ALL = _a.FETCH_ALL;
var DEFAULT_DIAGNOSTIC_RECORD = Object.freeze({
OPERATION: '',
OPERATION_CODE: '0',
CURRENT_SCHEMA: '/'
});
var BoltProtocol = /** @class */ (function (_super) {
__extends(BoltProtocol, _super);
function BoltProtocol() {
return _super !== null && _super.apply(this, arguments) || this;
}
Object.defineProperty(BoltProtocol.prototype, "version", {
get: function () {
return BOLT_PROTOCOL_V5_5;
},
enumerable: false,
configurable: true
});
Object.defineProperty(BoltProtocol.prototype, "transformer", {
get: function () {
var _this = this;
if (this._transformer === undefined) {
this._transformer = new transformer_1.default(Object.values(bolt_protocol_v5x5_transformer_1.default).map(function (create) { return create(_this._config, _this._log); }));
}
return this._transformer;
},
enumerable: false,
configurable: true
});
/**
* Initialize a connection with the server
*
* @param {Object} args The params
* @param {string} args.userAgent The user agent
* @param {any} args.authToken The auth token
* @param {NotificationFilter} args.notificationFilter The notification filters.
* @param {function(error)} args.onError On error callback
* @param {function(onComplete)} args.onComplete On complete callback
* @returns {LoginObserver} The Login observer
*/
BoltProtocol.prototype.initialize = function (_a) {
var _this = this;
var _b = _a === void 0 ? {} : _a, userAgent = _b.userAgent, boltAgent = _b.boltAgent, authToken = _b.authToken, notificationFilter = _b.notificationFilter, onError = _b.onError, onComplete = _b.onComplete;
var state = {};
var observer = new stream_observers_1.LoginObserver({
onError: function (error) { return _this._onLoginError(error, onError); },
onCompleted: function (metadata) {
state.metadata = metadata;
return _this._onLoginCompleted(metadata);
}
});
this.write(request_message_1.default.hello5x5(userAgent, boltAgent, notificationFilter, this._serversideRouting), observer, false);
return this.logon({
authToken: authToken,
onComplete: function (metadata) { return onComplete(__assign(__assign({}, metadata), state.metadata)); },
onError: onError,
flush: true
});
};
BoltProtocol.prototype.beginTransaction = function (_a) {
var _b = _a === void 0 ? {} : _a, bookmarks = _b.bookmarks, txConfig = _b.txConfig, database = _b.database, mode = _b.mode, impersonatedUser = _b.impersonatedUser, notificationFilter = _b.notificationFilter, beforeError = _b.beforeError, afterError = _b.afterError, beforeComplete = _b.beforeComplete, afterComplete = _b.afterComplete;
var observer = new stream_observers_1.ResultStreamObserver({
server: this._server,
beforeError: beforeError,
afterError: afterError,
beforeComplete: beforeComplete,
afterComplete: afterComplete
});
observer.prepareToHandleSingleResponse();
this.write(request_message_1.default.begin5x5({ bookmarks: bookmarks, txConfig: txConfig, database: database, mode: mode, impersonatedUser: impersonatedUser, notificationFilter: notificationFilter }), observer, true);
return observer;
};
BoltProtocol.prototype.run = function (query, parameters, _a) {
var _b = _a === void 0 ? {} : _a, bookmarks = _b.bookmarks, txConfig = _b.txConfig, database = _b.database, mode = _b.mode, impersonatedUser = _b.impersonatedUser, notificationFilter = _b.notificationFilter, beforeKeys = _b.beforeKeys, afterKeys = _b.afterKeys, beforeError = _b.beforeError, afterError = _b.afterError, beforeComplete = _b.beforeComplete, afterComplete = _b.afterComplete, _c = _b.flush, flush = _c === void 0 ? true : _c, _d = _b.reactive, reactive = _d === void 0 ? false : _d, _e = _b.fetchSize, fetchSize = _e === void 0 ? FETCH_ALL : _e, _f = _b.highRecordWatermark, highRecordWatermark = _f === void 0 ? Number.MAX_VALUE : _f, _g = _b.lowRecordWatermark, lowRecordWatermark = _g === void 0 ? Number.MAX_VALUE : _g;
var observer = new stream_observers_1.ResultStreamObserver({
server: this._server,
reactive: reactive,
fetchSize: fetchSize,
moreFunction: this._requestMore.bind(this),
discardFunction: this._requestDiscard.bind(this),
beforeKeys: beforeKeys,
afterKeys: afterKeys,
beforeError: beforeError,
afterError: afterError,
beforeComplete: beforeComplete,
afterComplete: afterComplete,
highRecordWatermark: highRecordWatermark,
lowRecordWatermark: lowRecordWatermark,
enrichMetadata: this._enrichMetadata
});
var flushRun = reactive;
this.write(request_message_1.default.runWithMetadata5x5(query, parameters, {
bookmarks: bookmarks,
txConfig: txConfig,
database: database,
mode: mode,
impersonatedUser: impersonatedUser,
notificationFilter: notificationFilter
}), observer, flushRun && flush);
if (!reactive) {
this.write(request_message_1.default.pull({ n: fetchSize }), observer, flush);
}
return observer;
};
/**
*
* @param {object} metadata
* @returns {object}
*/
BoltProtocol.prototype._enrichMetadata = function (metadata) {
if (Array.isArray(metadata.statuses)) {
metadata.statuses = metadata.statuses.map(function (status) { return (__assign(__assign({}, status), { description: status.neo4j_code != null ? status.status_description : status.description, diagnostic_record: status.diagnostic_record !== null ? __assign(__assign({}, DEFAULT_DIAGNOSTIC_RECORD), status.diagnostic_record) : null })); });
}
return metadata;
};
return BoltProtocol;
}(bolt_protocol_v5x4_1.default));
exports.default = BoltProtocol;