X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=org.simantics.maps.server%2Fnode%2Fnode-v4.8.0-win-x64%2Fnode_modules%2Fnpm%2Fnode_modules%2Frequest%2Fnode_modules%2Fcombined-stream%2Flib%2Fcombined_stream.js;fp=org.simantics.maps.server%2Fnode%2Fnode-v4.8.0-win-x64%2Fnode_modules%2Fnpm%2Fnode_modules%2Frequest%2Fnode_modules%2Fcombined-stream%2Flib%2Fcombined_stream.js;h=6b5c21b6b425138507447d11610a1a828ec538e0;hb=2529be6d456deeb07c128603ce4971f1dc29b695;hp=0000000000000000000000000000000000000000;hpb=2636fc31c16c23711cf2b06a4ae8537bba9c1d35;p=simantics%2Fdistrict.git diff --git a/org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/request/node_modules/combined-stream/lib/combined_stream.js b/org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/request/node_modules/combined-stream/lib/combined_stream.js new file mode 100644 index 00000000..6b5c21b6 --- /dev/null +++ b/org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/request/node_modules/combined-stream/lib/combined_stream.js @@ -0,0 +1,188 @@ +var util = require('util'); +var Stream = require('stream').Stream; +var DelayedStream = require('delayed-stream'); + +module.exports = CombinedStream; +function CombinedStream() { + this.writable = false; + this.readable = true; + this.dataSize = 0; + this.maxDataSize = 2 * 1024 * 1024; + this.pauseStreams = true; + + this._released = false; + this._streams = []; + this._currentStream = null; +} +util.inherits(CombinedStream, Stream); + +CombinedStream.create = function(options) { + var combinedStream = new this(); + + options = options || {}; + for (var option in options) { + combinedStream[option] = options[option]; + } + + return combinedStream; +}; + +CombinedStream.isStreamLike = function(stream) { + return (typeof stream !== 'function') + && (typeof stream !== 'string') + && (typeof stream !== 'boolean') + && (typeof stream !== 'number') + && (!Buffer.isBuffer(stream)); +}; + +CombinedStream.prototype.append = function(stream) { + var isStreamLike = CombinedStream.isStreamLike(stream); + + if (isStreamLike) { + if (!(stream instanceof DelayedStream)) { + var newStream = DelayedStream.create(stream, { + maxDataSize: Infinity, + pauseStream: this.pauseStreams, + }); + stream.on('data', this._checkDataSize.bind(this)); + stream = newStream; + } + + this._handleErrors(stream); + + if (this.pauseStreams) { + stream.pause(); + } + } + + this._streams.push(stream); + return this; +}; + +CombinedStream.prototype.pipe = function(dest, options) { + Stream.prototype.pipe.call(this, dest, options); + this.resume(); + return dest; +}; + +CombinedStream.prototype._getNext = function() { + this._currentStream = null; + var stream = this._streams.shift(); + + + if (typeof stream == 'undefined') { + this.end(); + return; + } + + if (typeof stream !== 'function') { + this._pipeNext(stream); + return; + } + + var getStream = stream; + getStream(function(stream) { + var isStreamLike = CombinedStream.isStreamLike(stream); + if (isStreamLike) { + stream.on('data', this._checkDataSize.bind(this)); + this._handleErrors(stream); + } + + this._pipeNext(stream); + }.bind(this)); +}; + +CombinedStream.prototype._pipeNext = function(stream) { + this._currentStream = stream; + + var isStreamLike = CombinedStream.isStreamLike(stream); + if (isStreamLike) { + stream.on('end', this._getNext.bind(this)); + stream.pipe(this, {end: false}); + return; + } + + var value = stream; + this.write(value); + this._getNext(); +}; + +CombinedStream.prototype._handleErrors = function(stream) { + var self = this; + stream.on('error', function(err) { + self._emitError(err); + }); +}; + +CombinedStream.prototype.write = function(data) { + this.emit('data', data); +}; + +CombinedStream.prototype.pause = function() { + if (!this.pauseStreams) { + return; + } + + if(this.pauseStreams && this._currentStream && typeof(this._currentStream.pause) == 'function') this._currentStream.pause(); + this.emit('pause'); +}; + +CombinedStream.prototype.resume = function() { + if (!this._released) { + this._released = true; + this.writable = true; + this._getNext(); + } + + if(this.pauseStreams && this._currentStream && typeof(this._currentStream.resume) == 'function') this._currentStream.resume(); + this.emit('resume'); +}; + +CombinedStream.prototype.end = function() { + this._reset(); + this.emit('end'); +}; + +CombinedStream.prototype.destroy = function() { + this._reset(); + this.emit('close'); +}; + +CombinedStream.prototype._reset = function() { + this.writable = false; + this._streams = []; + this._currentStream = null; +}; + +CombinedStream.prototype._checkDataSize = function() { + this._updateDataSize(); + if (this.dataSize <= this.maxDataSize) { + return; + } + + var message = + 'DelayedStream#maxDataSize of ' + this.maxDataSize + ' bytes exceeded.'; + this._emitError(new Error(message)); +}; + +CombinedStream.prototype._updateDataSize = function() { + this.dataSize = 0; + + var self = this; + this._streams.forEach(function(stream) { + if (!stream.dataSize) { + return; + } + + self.dataSize += stream.dataSize; + }); + + if (this._currentStream && this._currentStream.dataSize) { + this.dataSize += this._currentStream.dataSize; + } +}; + +CombinedStream.prototype._emitError = function(err) { + this._reset(); + this.emit('error', err); +};