67 lines
3.2 KiB
JavaScript
67 lines
3.2 KiB
JavaScript
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var util = require('util');
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var uuid = require('uuid');
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var TcpCommand = require('../systemData/tcpCommand');
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var InspectionDecision = require('../systemData/inspectionDecision');
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var InspectionResult = require('./../systemData/inspectionResult');
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var ClientMessage = require('../messages/clientMessage');
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var EventStoreTransaction = require('../eventStoreTransaction');
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var results = require('../results');
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var OperationBase = require('../clientOperations/operationBase');
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function StartTransactionOperation(log, cb, requireMaster, stream, expectedVersion, parentConnection, userCredentials) {
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OperationBase.call(this, log, cb, TcpCommand.TransactionStart, TcpCommand.TransactionStartCompleted, userCredentials);
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this._responseType = ClientMessage.TransactionStartCompleted;
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this._requireMaster = requireMaster;
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this._stream = stream;
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this._expectedVersion = expectedVersion;
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this._parentConnection = parentConnection;
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}
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util.inherits(StartTransactionOperation, OperationBase);
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StartTransactionOperation.prototype._createRequestDto = function() {
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return new ClientMessage.TransactionStart(this._stream, this._expectedVersion, this._requireMaster);
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};
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StartTransactionOperation.prototype._inspectResponse = function(response) {
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switch (response.result)
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{
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case ClientMessage.OperationResult.Success:
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this._succeed();
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return new InspectionResult(InspectionDecision.EndOperation, "Success");
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case ClientMessage.OperationResult.PrepareTimeout:
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return new InspectionResult(InspectionDecision.Retry, "PrepareTimeout");
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case ClientMessage.OperationResult.CommitTimeout:
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return new InspectionResult(InspectionDecision.Retry, "CommitTimeout");
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case ClientMessage.OperationResult.ForwardTimeout:
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return new InspectionResult(InspectionDecision.Retry, "ForwardTimeout");
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case ClientMessage.OperationResult.WrongExpectedVersion:
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var err = util.format("Start transaction failed due to WrongExpectedVersion. Stream: %s, Expected version: %d.", this._stream, this._expectedVersion);
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this.fail(new Error(err));
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return new InspectionResult(InspectionDecision.EndOperation, "WrongExpectedVersion");
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case ClientMessage.OperationResult.StreamDeleted:
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this.fail(new Error("Stream deleted: " + this._stream));
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return new InspectionResult(InspectionDecision.EndOperation, "StreamDeleted");
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case ClientMessage.OperationResult.InvalidTransaction:
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this.fail(new Error("Invalid transaction."));
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return new InspectionResult(InspectionDecision.EndOperation, "InvalidTransaction");
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case ClientMessage.OperationResult.AccessDenied:
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this.fail(new Error(util.format("Write access denied for stream '%s'.", this._stream)));
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return new InspectionResult(InspectionDecision.EndOperation, "AccessDenied");
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default:
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throw new Error(util.format("Unexpected OperationResult: %s.", response.result));
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}
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};
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StartTransactionOperation.prototype._transformResponse = function(response) {
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return new EventStoreTransaction(results.toNumber(response.transaction_id), this.userCredentials, this._parentConnection);
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};
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StartTransactionOperation.prototype.toString = function() {
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return util.format("Stream: %s, ExpectedVersion: %d", this._stream, this._expectedVersion);
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};
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module.exports = StartTransactionOperation;
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