"use strict";
var Long = require('mongodb-core').BSON.Long,
Timestamp = require('mongodb-core').BSON.Timestamp;
// Error codes
var UNKNOWN_ERROR = 8;
var INVALID_BSON_ERROR = 22;
var WRITE_CONCERN_ERROR = 64;
var MULTIPLE_ERROR = 65;
// Insert types
var INSERT = 1;
var UPDATE = 2;
var REMOVE = 3
// Get write concern
var writeConcern = function(target, col, options) {
var writeConcern = {};
// Collection level write concern
if(col.writeConcern && col.writeConcern.w != null) writeConcern.w = col.writeConcern.w;
if(col.writeConcern && col.writeConcern.j != null) writeConcern.j = col.writeConcern.j;
if(col.writeConcern && col.writeConcern.fsync != null) writeConcern.fsync = col.writeConcern.fsync;
if(col.writeConcern && col.writeConcern.wtimeout != null) writeConcern.wtimeout = col.writeConcern.wtimeout;
// Options level write concern
if(options && options.w != null) writeConcern.w = options.w;
if(options && options.wtimeout != null) writeConcern.wtimeout = options.wtimeout;
if(options && options.j != null) writeConcern.j = options.j;
if(options && options.fsync != null) writeConcern.fsync = options.fsync;
// Return write concern
return writeConcern;
}
/**
* Helper function to define properties
* @ignore
*/
var defineReadOnlyProperty = function(self, name, value) {
Object.defineProperty(self, name, {
enumerable: true
, get: function() {
return value;
}
});
}
/**
* Keeps the state of a unordered batch so we can rewrite the results
* correctly after command execution
* @ignore
*/
var Batch = function(batchType, originalZeroIndex) {
this.originalZeroIndex = originalZeroIndex;
this.currentIndex = 0;
this.originalIndexes = [];
this.batchType = batchType;
this.operations = [];
this.size = 0;
this.sizeBytes = 0;
}
/**
* Wraps a legacy operation so we can correctly rewrite it's error
* @ignore
*/
var LegacyOp = function(batchType, operation, index) {
this.batchType = batchType;
this.index = index;
this.operation = operation;
}
/**
* Create a new BulkWriteResult instance (INTERNAL TYPE, do not instantiate directly)
*
* @class
* @property {boolean} ok Did bulk operation correctly execute
* @property {number} nInserted number of inserted documents
* @property {number} nUpdated number of documents updated logically
* @property {number} nUpserted Number of upserted documents
* @property {number} nModified Number of documents updated physically on disk
* @property {number} nRemoved Number of removed documents
* @return {BulkWriteResult} a BulkWriteResult instance
*/
var BulkWriteResult = function(bulkResult) {
defineReadOnlyProperty(this, "ok", bulkResult.ok);
defineReadOnlyProperty(this, "nInserted", bulkResult.nInserted);
defineReadOnlyProperty(this, "nUpserted", bulkResult.nUpserted);
defineReadOnlyProperty(this, "nMatched", bulkResult.nMatched);
defineReadOnlyProperty(this, "nModified", bulkResult.nModified);
defineReadOnlyProperty(this, "nRemoved", bulkResult.nRemoved);
/**
* Return an array of inserted ids
*
* @return {object[]}
*/
this.getInsertedIds = function() {
return bulkResult.insertedIds;
}
/**
* Return an array of upserted ids
*
* @return {object[]}
*/
this.getUpsertedIds = function() {
return bulkResult.upserted;
}
/**
* Return the upserted id at position x
*
* @param {number} index the number of the upserted id to return, returns undefined if no result for passed in index
* @return {object}
*/
this.getUpsertedIdAt = function(index) {
return bulkResult.upserted[index];
}
/**
* Return raw internal result
*
* @return {object}
*/
this.getRawResponse = function() {
return bulkResult;
}
/**
* Returns true if the bulk operation contains a write error
*
* @return {boolean}
*/
this.hasWriteErrors = function() {
return bulkResult.writeErrors.length > 0;
}
/**
* Returns the number of write errors off the bulk operation
*
* @return {number}
*/
this.getWriteErrorCount = function() {
return bulkResult.writeErrors.length;
}
/**
* Returns a specific write error object
*
* @param {number} index of the write error to return, returns null if there is no result for passed in index
* @return {WriteError}
*/
this.getWriteErrorAt = function(index) {
if(index < bulkResult.writeErrors.length) {
return bulkResult.writeErrors[index];
}
return null;
}
/**
* Retrieve all write errors
*
* @return {object[]}
*/
this.getWriteErrors = function() {
return bulkResult.writeErrors;
}
/**
* Retrieve lastOp if available
*
* @return {object}
*/
this.getLastOp = function() {
return bulkResult.lastOp;
}
/**
* Retrieve the write concern error if any
*
* @return {WriteConcernError}
*/
this.getWriteConcernError = function() {
if(bulkResult.writeConcernErrors.length == 0) {
return null;
} else if(bulkResult.writeConcernErrors.length == 1) {
// Return the error
return bulkResult.writeConcernErrors[0];
} else {
// Combine the errors
var errmsg = "";
for(var i = 0; i < bulkResult.writeConcernErrors.length; i++) {
var err = bulkResult.writeConcernErrors[i];
errmsg = errmsg + err.errmsg;
// TODO: Something better
if(i == 0) errmsg = errmsg + " and ";
}
return new WriteConcernError({ errmsg : errmsg, code : WRITE_CONCERN_ERROR });
}
}
this.toJSON = function() {
return bulkResult;
}
this.toString = function() {
return "BulkWriteResult(" + this.toJSON(bulkResult) + ")";
}
this.isOk = function() {
return bulkResult.ok == 1;
}
}
/**
* Create a new WriteConcernError instance (INTERNAL TYPE, do not instantiate directly)
*
* @class
* @property {number} code Write concern error code.
* @property {string} errmsg Write concern error message.
* @return {WriteConcernError} a WriteConcernError instance
*/
var WriteConcernError = function(err) {
if(!(this instanceof WriteConcernError)) return new WriteConcernError(err);
// Define properties
defineReadOnlyProperty(this, "code", err.code);
defineReadOnlyProperty(this, "errmsg", err.errmsg);
this.toJSON = function() {
return {code: err.code, errmsg: err.errmsg};
}
this.toString = function() {
return "WriteConcernError(" + err.errmsg + ")";
}
}
/**
* Create a new WriteError instance (INTERNAL TYPE, do not instantiate directly)
*
* @class
* @property {number} code Write concern error code.
* @property {number} index Write concern error original bulk operation index.
* @property {string} errmsg Write concern error message.
* @return {WriteConcernError} a WriteConcernError instance
*/
var WriteError = function(err) {
if(!(this instanceof WriteError)) return new WriteError(err);
// Define properties
defineReadOnlyProperty(this, "code", err.code);
defineReadOnlyProperty(this, "index", err.index);
defineReadOnlyProperty(this, "errmsg", err.errmsg);
//
// Define access methods
this.getOperation = function() {
return err.op;
}
this.toJSON = function() {
return {code: err.code, index: err.index, errmsg: err.errmsg, op: err.op};
}
this.toString = function() {
return "WriteError(" + JSON.stringify(this.toJSON()) + ")";
}
}
/**
* Merges results into shared data structure
* @ignore
*/
var mergeBatchResults = function(ordered, batch, bulkResult, err, result) {
// If we have an error set the result to be the err object
if(err) {
result = err;
} else if(result && result.result) {
result = result.result;
} else if(result == null) {
return;
}
// Do we have a top level error stop processing and return
if(result.ok == 0 && bulkResult.ok == 1) {
bulkResult.ok = 0;
var writeError = {
index: 0
, code: result.code || 0
, errmsg: result.message
, op: batch.operations[0]
};
bulkResult.writeErrors.push(new WriteError(writeError));
return;
} else if(result.ok == 0 && bulkResult.ok == 0) {
return;
}
// Deal with opTime if available
if(result.opTime || result.lastOp) {
var opTime = result.lastOp || result.opTime;
var lastOpTS = null;
var lastOpT = null;
// We have a time stamp
if(opTime && opTime._bsontype == 'Timestamp') {
if(bulkResult.lastOp == null) {
bulkResult.lastOp = opTime;
} else if(opTime.greaterThan(bulkResult.lastOp)) {
bulkResult.lastOp = opTime;
}
} else {
// Existing TS
if(bulkResult.lastOp) {
lastOpTS = typeof bulkResult.lastOp.ts == 'number'
? Long.fromNumber(bulkResult.lastOp.ts) : bulkResult.lastOp.ts;
lastOpT = typeof bulkResult.lastOp.t == 'number'
? Long.fromNumber(bulkResult.lastOp.t) : bulkResult.lastOp.t;
}
// Current OpTime TS
var opTimeTS = typeof opTime.ts == 'number'
? Long.fromNumber(opTime.ts) : opTime.ts;
var opTimeT = typeof opTime.t == 'number'
? Long.fromNumber(opTime.t) : opTime.t;
// Compare the opTime's
if(bulkResult.lastOp == null) {
bulkResult.lastOp = opTime;
} else if(opTimeTS.greaterThan(lastOpTS)) {
bulkResult.lastOp = opTime;
} else if(opTimeTS.equals(lastOpTS)) {
if(opTimeT.greaterThan(lastOpT)) {
bulkResult.lastOp = opTime;
}
}
}
}
// If we have an insert Batch type
if(batch.batchType == INSERT && result.n) {
bulkResult.nInserted = bulkResult.nInserted + result.n;
}
// If we have an insert Batch type
if(batch.batchType == REMOVE && result.n) {
bulkResult.nRemoved = bulkResult.nRemoved + result.n;
}
var nUpserted = 0;
// We have an array of upserted values, we need to rewrite the indexes
if(Array.isArray(result.upserted)) {
nUpserted = result.upserted.length;
for(var i = 0; i < result.upserted.length; i++) {
bulkResult.upserted.push({
index: result.upserted[i].index + batch.originalZeroIndex
, _id: result.upserted[i]._id
});
}
} else if(result.upserted) {
nUpserted = 1;
bulkResult.upserted.push({
index: batch.originalZeroIndex
, _id: result.upserted
});
}
// If we have an update Batch type
if(batch.batchType == UPDATE && result.n) {
var nModified = result.nModified;
bulkResult.nUpserted = bulkResult.nUpserted + nUpserted;
bulkResult.nMatched = bulkResult.nMatched + (result.n - nUpserted);
if(typeof nModified == 'number') {
bulkResult.nModified = bulkResult.nModified + nModified;
} else {
bulkResult.nModified = null;
}
}
if(Array.isArray(result.writeErrors)) {
for(i = 0; i < result.writeErrors.length; i++) {
writeError = {
index: batch.originalZeroIndex + result.writeErrors[i].index
, code: result.writeErrors[i].code
, errmsg: result.writeErrors[i].errmsg
, op: batch.operations[result.writeErrors[i].index]
};
bulkResult.writeErrors.push(new WriteError(writeError));
}
}
if(result.writeConcernError) {
bulkResult.writeConcernErrors.push(new WriteConcernError(result.writeConcernError));
}
}
//
// Clone the options
var cloneOptions = function(options) {
var clone = {};
var keys = Object.keys(options);
for(var i = 0; i < keys.length; i++) {
clone[keys[i]] = options[keys[i]];
}
return clone;
}
// Exports symbols
exports.BulkWriteResult = BulkWriteResult;
exports.WriteError = WriteError;
exports.Batch = Batch;
exports.LegacyOp = LegacyOp;
exports.mergeBatchResults = mergeBatchResults;
exports.cloneOptions = cloneOptions;
exports.writeConcern = writeConcern;
exports.INVALID_BSON_ERROR = INVALID_BSON_ERROR;
exports.WRITE_CONCERN_ERROR = WRITE_CONCERN_ERROR;
exports.MULTIPLE_ERROR = MULTIPLE_ERROR;
exports.UNKNOWN_ERROR = UNKNOWN_ERROR;
exports.INSERT = INSERT;
exports.UPDATE = UPDATE;
exports.REMOVE = REMOVE;