| 1 | (function() {
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| 2 | var BatchWriteStream, Errors, WriteStream, consts, defaultOptions, extend, inherits, setImmediate, util;
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| 3 |
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| 4 | BatchWriteStream = require('batch-write-stream');
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| 5 |
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| 6 | util = require('abstract-object/lib/util');
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| 7 |
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| 8 | Errors = require('./errors');
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| 9 |
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| 10 | consts = require('./consts');
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| 11 |
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| 12 | inherits = util.inherits;
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| 13 |
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| 14 | extend = util._extend;
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| 15 |
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| 16 | setImmediate = global.setImmediate || process.nextTick;
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| 17 |
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| 18 | defaultOptions = {
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| 19 | highWaterMark: 1e5,
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| 20 | maxConcurrentBatches: 4,
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| 21 | type: 'put',
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| 22 | flushWait: 10
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| 23 | };
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| 24 |
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| 25 | module.exports = WriteStream = (function() {
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| 26 | inherits(WriteStream, BatchWriteStream);
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| 27 |
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| 28 | function WriteStream(db, aOptions) {
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| 29 | if (!(this instanceof WriteStream)) {
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| 30 | return new WriteStream(db, aOptions);
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| 31 | }
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| 32 | this._options = extend({}, defaultOptions);
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| 33 | this._options = extend(this._options, aOptions || {});
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| 34 | if (db == null) {
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| 35 | db = aOptions.db;
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| 36 | }
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| 37 | this.db = db;
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| 38 | this._type = this._options.type;
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| 39 | BatchWriteStream.call(this, {
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| 40 | objectMode: true,
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| 41 | highWaterMark: this._options.highWaterMark,
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| 42 | maxConcurrentBatches: this._options.maxConcurrentBatches,
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| 43 | flushWait: this._options.flushWait
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| 44 | });
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| 45 | this.once('finish', (function(_this) {
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| 46 | return function() {
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| 47 | return _this.emit('close');
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| 48 | };
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| 49 | })(this));
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| 50 | }
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| 51 |
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| 52 | WriteStream.prototype._writeBatch = function(aBatch, aCallback) {
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| 53 | return this.db.batch(aBatch, aCallback);
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| 54 | };
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| 55 |
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| 56 | WriteStream.prototype._map = function(aItem) {
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| 57 | return {
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| 58 | type: aItem.type || this._type,
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| 59 | key: aItem.key,
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| 60 | value: aItem.value,
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| 61 | keyEncoding: aItem.keyEncoding || this._options.keyEncoding,
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| 62 | valueEncoding: aItem.valueEncoding || this.encoding || this._options.valueEncoding
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| 63 | };
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| 64 | };
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| 65 |
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| 66 | WriteStream.prototype.toString = function() {
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| 67 | return 'NoSQLWriteStream';
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| 68 | };
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| 69 |
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| 70 | return WriteStream;
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| 71 |
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| 72 | })();
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| 73 |
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| 74 | }).call(this);
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| 75 |
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| 76 |
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