yonote/yjs
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experimenting with 'reserved uids'

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This commit is contained in:
Kevin Jahns 2014-08-07 21:52:50 +02:00
parent efc4e502cf
commit 9e1d9e568f
77 changed files with 509 additions and 1482 deletions
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4
Gruntfile.coffee
View File

@ -73,7 +73,7 @@ module.exports = (grunt) ->
browserify:
dest:
files:
'dest/browser/Yatta_test.js': ['test/**/*.coffee']
'dest/browser/test/Yatta_test.js': ['test/**/*.coffee']
options:
transform: ['coffeeify']
debug: true
@ -128,7 +128,7 @@ module.exports = (grunt) ->
grunt.loadNpmTasks "grunt-coffeelint"
grunt.loadNpmTasks "grunt-codo"
grunt.registerTask "build", ["coffeelint", "codo", "test"]
grunt.registerTask "build", ["coffeelint", "codo", "browserify", "test"]
grunt.registerTask "production", ["test", "coffee","coffeelint", "literate", "browserify", "uglify", "codo"]
grunt.registerTask "default", ["build", "watch"]
grunt.registerTask "production", ["coffee"]

21
README.md
View File

@ -3,7 +3,7 @@
A real-time web framework that manages concurrency control for arbitrary data structures and is _not_ based on Operational Transformation.
Yatta! provides similar functionality as [ShareJs](https://github.com/share/ShareJS) and [OpenCoweb](https://github.com/opencoweb/coweb)
but does not require you to understand how the internals work. The predefined data structures provide a simple API to access your shared data types.
but does not require you to understand how the internals work. The predefined data structures provide a simple API to access your shared data structures.
Predefined data structures:
* Text
@ -13,26 +13,27 @@ Predefined data structures:
Unlike other frameworks, Yatta! supports P2P message propagation and is not bound to a specific communication protocol.
Currently supported communication protocols:
* [IWC](dbis.rwth-aachen.de/gadgets/iwc/resources/iwc.manual.pdf) - Inter-widget Communication
* [IWC](http://dbis.rwth-aachen.de/gadgets/iwc/resources/iwc.manual.pdf) - Inter-widget Communication
# About
Find out more about the concurrent editing problem here
([Cooperation, Concurrency, Conflicts, and Convergence](http://opencoweb.org/ocwdocs/intro/openg.html)) and here
([Operational Transformation (OT)](http://en.wikipedia.org/wiki/Operational_transformation))
[Cooperation, Concurrency, Conflicts, and Convergence](http://opencoweb.org/ocwdocs/intro/openg.html) and here
[Operational Transformation (OT)](http://en.wikipedia.org/wiki/Operational_transformation)
My Bachelor Thesis project aim was to develop a P2P OT Framework that enables collaboration on XML documents and supports
[Intention Preservation](http://www3.ntu.edu.sg/home/czsun/projects/otfaq/#intentionPreservation).
After some time I realized that OT has significant drawbacks in P2P environments.
With my gained experiences I came up with a new approach. I named it Yata - Yet Another Transformation Approach.
Very surprising is that my approach enables concurrent editing with the following space and time properties:
It enables concurrent editing with the following space and time properties:
* Time complexity: O(S), whereby S is the number of operations that are inserted concurrently at the same position. This means that my approach does not transform against operations that happen on other positions.
* Space complexity = O(|Document|), whereby |Document| is the size of shared document. Depending on the used data structure, Yata may needs 4*|Document| of space.
* Space complexity = O(|Document|), whereby |Document| is the size of the shared document. Depending on the used data structure, Yata may needs 4*|Document| of space.
This means that my approach beats all OT time complexities. Furthermore, it is possible to make a very strict definition of Intention Preservation, and I was able to
show that it is never violated.
Another advantage of my approach is that propagated messages are very small.
Background: In Real-Time P2P OT algorithms you have to send a state-vector with every message that defines the state of the History Buffer
Background: In real-time P2P OT algorithms you have to send a state-vector with every message that defines the state of the History Buffer
on which the operation was created. This is not necessary in Yata.
One downside is that the History Buffer holds at least as many operations as there are characters in the document.
@ -42,6 +43,7 @@ So, how did I come up with the name for the implementation (Yatta! is not Yata)?
![YATTA!](./extras/imgs/YATTA.png)
Yatta! means "I did it!" in Japanese. You scream it when you accomplish something (for proper application I refer to the Yatta-man in [Heroes](http://heroeswiki.com/Yatta!)).
There is also this awesome video on the Internet that will change your life [Yatta](https://www.youtube.com/watch?v=kL5DDSglM_s).
# Status
Yatta! is still in an early development phase.
@ -50,3 +52,8 @@ Please report any issues to the [Github issue page](https://github.com/DadaMonad
# License
Yatta! is licensed under the [MIT License](./LICENSE.txt).

75
dest/browser/Frameworks/JsonIwcYatta.js
View File

@ -146,23 +146,25 @@ Engine = (function() {
};
Engine.prototype.applyOps = function(ops_json) {
var o, ops, _i, _j, _k, _len, _len1, _len2;
ops = [];
var o, _i, _len, _results;
_results = [];
for (_i = 0, _len = ops_json.length; _i < _len; _i++) {
o = ops_json[_i];
ops.push(this.parseOperation(o));
_results.push(this.applyOp(o));
}
for (_j = 0, _len1 = ops.length; _j < _len1; _j++) {
o = ops[_j];
this.HB.addOperation(o);
}
for (_k = 0, _len2 = ops.length; _k < _len2; _k++) {
o = ops[_k];
if (!o.execute()) {
this.unprocessed_ops.push(o);
}
}
return this.tryUnprocessed();
return _results;
/*
ops = []
for o in ops_json
ops.push @parseOperation o
for o in ops
@HB.addOperation o
for o in ops
if not o.execute()
@unprocessed_ops.push o
@tryUnprocessed()
*/
};
Engine.prototype.applyOp = function(op_json) {
@ -216,20 +218,14 @@ Engine = require("../Engine.coffee");
JsonYatta = (function() {
function JsonYatta(user_id, Connector) {
var first_word, json_types, root_elem;
var first_word, json_types;
this.HB = new HistoryBuffer(user_id);
json_types = json_types_uninitialized(this.HB);
this.engine = new Engine(this.HB, json_types.parser);
this.connector = new Connector(this.engine, this.HB, json_types.execution_listener, this);
root_elem = this.connector.getRootElement();
if (root_elem == null) {
first_word = new json_types.types.JsonType(this.HB.getNextOperationIdentifier());
this.HB.addOperation(first_word);
first_word.execute();
this.root_element = first_word;
} else {
this.root_element = this.HB.getOperation(root_elem);
}
first_word = new json_types.types.JsonType(this.HB.getReservedUniqueIdentifier());
this.HB.addOperation(first_word).execute();
this.root_element = first_word;
}
JsonYatta.prototype.getRootElement = function() {
@ -305,6 +301,13 @@ HistoryBuffer = (function() {
return this.user_id;
};
HistoryBuffer.prototype.getReservedUniqueIdentifier = function() {
return {
creator: '_',
op_number: '_'
};
};
HistoryBuffer.prototype.getOperationCounter = function() {
var ctn, res, user, _ref;
res = {};
@ -608,7 +611,7 @@ module.exports = function(HB) {
__extends(ImmutableObject, _super);
function ImmutableObject(uid, content, prev, next, origin) {
this.content = content != null ? content : "";
this.content = content;
ImmutableObject.__super__.constructor.call(this, uid, prev, next, origin);
}
@ -810,10 +813,11 @@ module.exports = function(HB) {
return JsonType.__super__.val.call(this, name, obj);
} else {
if (typeof content === 'string') {
word = HB.addOperation(new types.Word(HB.getNextOperationIdentifier(), content)).execute();
word = HB.addOperation(new types.Word(void 0)).execute();
word.insertText(0, content);
return JsonType.__super__.val.call(this, name, word);
} else if (content.constructor === Object) {
json = HB.addOperation(new JsonType(HB.getNextOperationIdentifier(), content, mutable)).execute();
json = HB.addOperation(new JsonType(void 0, content, mutable)).execute();
return JsonType.__super__.val.call(this, name, json);
} else {
throw new Error("You must not set " + (typeof content) + "-types in collaborative Json-objects!");
@ -887,7 +891,7 @@ module.exports = function(HB) {
var o, obj, result, _ref, _ref1;
if (content != null) {
if (this.map[name] == null) {
HB.addOperation(new AddName(HB.getNextOperationIdentifier(), this, name)).execute();
HB.addOperation(new AddName(void 0, this, name)).execute();
}
this.map[name].replace(content);
return this;
@ -971,8 +975,8 @@ module.exports = function(HB) {
this.saveOperation('beginning', beginning);
this.saveOperation('end', end);
} else {
this.beginning = HB.addOperation(new types.Delimiter(HB.getNextOperationIdentifier(), void 0, void 0));
this.end = HB.addOperation(new types.Delimiter(HB.getNextOperationIdentifier(), this.beginning, void 0));
this.beginning = HB.addOperation(new types.Delimiter(void 0, void 0, void 0));
this.end = HB.addOperation(new types.Delimiter(void 0, this.beginning, void 0));
this.beginning.next_cl = this.end;
this.beginning.execute();
this.end.execute();
@ -1035,7 +1039,7 @@ module.exports = function(HB) {
ReplaceManager.prototype.replace = function(content) {
var o, op;
o = this.getLastOperation();
op = new Replaceable(content, this, HB.getNextOperationIdentifier(), o, o.next_cl);
op = new Replaceable(content, this, void 0, o, o.next_cl);
return HB.addOperation(op).execute();
};
@ -1215,11 +1219,8 @@ module.exports = function(HB) {
Word = (function(_super) {
__extends(Word, _super);
function Word(uid, initial_content, beginning, end, prev, next, origin) {
function Word(uid, beginning, end, prev, next, origin) {
Word.__super__.constructor.call(this, uid, beginning, end, prev, next, origin);
if (initial_content != null) {
this.insertText(0, initial_content);
}
}
Word.prototype.insertText = function(position, content) {
@ -1228,7 +1229,7 @@ module.exports = function(HB) {
_results = [];
for (_i = 0, _len = content.length; _i < _len; _i++) {
c = content[_i];
op = new TextInsert(c, HB.getNextOperationIdentifier(), o.prev_cl, o);
op = new TextInsert(c, void 0, o.prev_cl, o);
_results.push(HB.addOperation(op).execute());
}
return _results;
@ -1313,7 +1314,7 @@ module.exports = function(HB) {
parser['Word'] = function(json) {
var beginning, end, next, origin, prev, uid;
uid = json['uid'], beginning = json['beginning'], end = json['end'], prev = json['prev'], next = json['next'], origin = json['origin'];
return new Word(uid, void 0, beginning, end, prev, next, origin);
return new Word(uid, beginning, end, prev, next, origin);
};
types['TextInsert'] = TextInsert;
types['TextDelete'] = TextDelete;

627
dest/browser/Yatta_test.js
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File diff suppressed because one or more lines are too long

71
dest/browser/Yatta_test.min.js vendored
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File diff suppressed because one or more lines are too long

4
dest/browser/Yatta_test.html → dest/browser/test/index.html
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@ -2,11 +2,11 @@
<head>
<meta charset="utf-8">
<title>Test GOTOjs</title>
<link rel="stylesheet" href="../../node_modules/mocha/mocha.css" />
<link rel="stylesheet" href="../../../node_modules/mocha/mocha.css" />
</head>
<body>
<div id="mocha"></div>
<script src="../../node_modules/mocha/mocha.js"></script>
<script src="../../../node_modules/mocha/mocha.js"></script>
<script>mocha.setup('bdd')</script>
<script src="Yatta_test.js"></script>
<script>

4
dest/lib/Connectors/TestConnector.js
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@ -57,10 +57,10 @@ module.exports = function(user_list) {
TestConnector.prototype.receive = function(o) {
var _base, _name;
if ((_base = this.unexecuted)[_name = o.creator] == null) {
if ((_base = this.unexecuted)[_name = o.uid.creator] == null) {
_base[_name] = [];
}
return this.unexecuted[o.creator].push(o);
return this.unexecuted[o.uid.creator].push(o);
};
TestConnector.prototype.flushOne = function(user) {

2
dest/lib/Connectors/TestConnector.js.map
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@ -6,5 +6,5 @@
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30
dest/lib/Engine.js
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@ -18,23 +18,25 @@ Engine = (function() {
};
Engine.prototype.applyOps = function(ops_json) {
var o, ops, _i, _j, _k, _len, _len1, _len2;
ops = [];
var o, _i, _len, _results;
_results = [];
for (_i = 0, _len = ops_json.length; _i < _len; _i++) {
o = ops_json[_i];
ops.push(this.parseOperation(o));
_results.push(this.applyOp(o));
}
for (_j = 0, _len1 = ops.length; _j < _len1; _j++) {
o = ops[_j];
this.HB.addOperation(o);
}
for (_k = 0, _len2 = ops.length; _k < _len2; _k++) {
o = ops[_k];
if (!o.execute()) {
this.unprocessed_ops.push(o);
}
}
return this.tryUnprocessed();
return _results;
/*
ops = []
for o in ops_json
ops.push @parseOperation o
for o in ops
@HB.addOperation o
for o in ops
if not o.execute()
@unprocessed_ops.push o
@tryUnprocessed()
*/
};
Engine.prototype.applyOp = function(op_json) {

2
dest/lib/Engine.js.map
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@ -6,5 +6,5 @@
"Engine.coffee"
],
"names": [],
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}

14
dest/lib/Frameworks/JsonYatta.js
View File

@ -8,20 +8,14 @@ Engine = require("../Engine.coffee");
JsonYatta = (function() {
function JsonYatta(user_id, Connector) {
var first_word, json_types, root_elem;
var first_word, json_types;
this.HB = new HistoryBuffer(user_id);
json_types = json_types_uninitialized(this.HB);
this.engine = new Engine(this.HB, json_types.parser);
this.connector = new Connector(this.engine, this.HB, json_types.execution_listener, this);
root_elem = this.connector.getRootElement();
if (root_elem == null) {
first_word = new json_types.types.JsonType(this.HB.getNextOperationIdentifier());
this.HB.addOperation(first_word);
first_word.execute();
this.root_element = first_word;
} else {
this.root_element = this.HB.getOperation(root_elem);
}
first_word = new json_types.types.JsonType(this.HB.getReservedUniqueIdentifier());
this.HB.addOperation(first_word).execute();
this.root_element = first_word;
}
JsonYatta.prototype.getRootElement = function() {

2
dest/lib/Frameworks/JsonYatta.js.map
View File

@ -6,5 +6,5 @@
"JsonYatta.coffee"
],
"names": [],
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}

7
dest/lib/HistoryBuffer.js
View File

@ -12,6 +12,13 @@ HistoryBuffer = (function() {
return this.user_id;
};
HistoryBuffer.prototype.getReservedUniqueIdentifier = function() {
return {
creator: '_',
op_number: '_'
};
};
HistoryBuffer.prototype.getOperationCounter = function() {
var ctn, res, user, _ref;
res = {};

2
dest/lib/HistoryBuffer.js.map
View File

@ -6,5 +6,5 @@
"HistoryBuffer.coffee"
],
"names": [],
"mappings": "AAMA,IAAA,aAAA;;AAAA;AAMe,EAAA,uBAAE,OAAF,GAAA;AACX,IADY,IAAC,CAAA,UAAA,OACb,CAAA;AAAA,IAAA,IAAC,CAAA,iBAAD,GAAqB,EAArB,CAAA;AAAA,IACA,IAAC,CAAA,MAAD,GAAU,EADV,CAAA;AAAA,IAEA,IAAC,CAAA,gBAAD,GAAoB,EAFpB,CADW;EAAA,CAAb;;AAAA,0BAQA,SAAA,GAAW,SAAA,GAAA;WACT,IAAC,CAAA,QADQ;EAAA,CARX,CAAA;;AAAA,0BAcA,mBAAA,GAAqB,SAAA,GAAA;AACnB,QAAA,oBAAA;AAAA,IAAA,GAAA,GAAM,EAAN,CAAA;AACA;AAAA,SAAA,YAAA;uBAAA;AACE,MAAA,GAAI,CAAA,IAAA,CAAJ,GAAY,GAAZ,CADF;AAAA,KADA;WAGA,IAJmB;EAAA,CAdrB,CAAA;;AAAA,0BAoBA,OAAA,GAAS,SAAA,GAAA;AACP,QAAA,qCAAA;AAAA,IAAA,IAAA,GAAO,EAAP,CAAA;AACA;AAAA,SAAA,cAAA;0BAAA;AACE,WAAA,gBAAA;2BAAA;AACE,QAAA,IAAG,CAAA,KAAI,CAAM,QAAA,CAAS,QAAT,CAAN,CAAP;AACE,UAAA,IAAI,CAAC,IAAL,CAAU,CAAC,CAAC,OAAF,CAAA,CAAV,CAAA,CADF;SADF;AAAA,OADF;AAAA,KADA;WAKA,KANO;EAAA,CApBT,CAAA;;AAAA,0BAiCA,0BAAA,GAA4B,SAAC,OAAD,GAAA;AAC1B,QAAA,GAAA;AAAA,IAAA,IAAO,eAAP;AACE,MAAA,OAAA,GAAU,IAAC,CAAA,OAAX,CADF;KAAA;AAEA,IAAA,IAAO,uCAAP;AACE,MAAA,IAAC,CAAA,iBAAkB,CAAA,OAAA,CAAnB,GAA8B,CAA9B,CADF;KAFA;AAAA,IAIA,GAAA,GAAM;AAAA,MACF,SAAA,EAAY,OADV;AAAA,MAEF,WAAA,EAAc,IAAC,CAAA,iBAAkB,CAAA,OAAA,CAF/B;KAJN,CAAA;AAAA,IAQA,IAAC,CAAA,iBAAkB,CAAA,OAAA,CAAnB,EARA,CAAA;WASA,IAV0B;EAAA,CAjC5B,CAAA;;AAAA,0BA8CA,YAAA,GAAc,SAAC,GAAD,GAAA;AACZ,QAAA,IAAA;AAAA,IAAA,IAAG,GAAA,YAAe,MAAlB;6DACwB,CAAA,GAAG,CAAC,SAAJ,WADxB;KAAA,MAEK,IAAO,WAAP;AAAA;KAAA,MAAA;AAEH,YAAU,IAAA,KAAA,CAAM,kCAAN,CAAV,CAFG;KAHO;EAAA,CA9Cd,CAAA;;AAAA,0BAuDA,YAAA,GAAc,SAAC,CAAD,GAAA;AACZ,IAAA,IAAO,8BAAP;AACE,MAAA,IAAC,CAAA,MAAO,CAAA,CAAC,CAAC,OAAF,CAAR,GAAqB,EAArB,CADF;KAAA;AAEA,IAAA,IAAO,yCAAP;AACE,MAAA,IAAC,CAAA,iBAAkB,CAAA,CAAC,CAAC,OAAF,CAAnB,GAAgC,CAAhC,CADF;KAFA;AAMA,IAAA,IAAG,2CAAH;AACE,YAAU,IAAA,KAAA,CAAM,oCAAN,CAAV,CADF;KANA;AAAA,IAQA,IAAC,CAAA,MAAO,CAAA,CAAC,CAAC,OAAF,CAAW,CAAA,CAAC,CAAC,SAAF,CAAnB,GAAkC,CARlC,CAAA;AASA,IAAA,IAAG,MAAA,CAAA,CAAQ,CAAC,SAAT,KAAsB,QAAtB,IAAmC,CAAC,CAAC,OAAF,KAAe,IAAC,CAAA,SAAD,CAAA,CAArD;AACE,MAAA,IAAC,CAAA,iBAAkB,CAAA,CAAC,CAAC,OAAF,CAAnB,EAAA,CADF;KATA;WAWA,EAZY;EAAA,CAvDd,CAAA;;uBAAA;;IANF,CAAA;;AAAA,MA2EM,CAAC,OAAP,GAAiB,aA3EjB,CAAA"
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}

2
dest/lib/Types/BasicTypes.js
View File

@ -222,7 +222,7 @@ module.exports = function(HB) {
__extends(ImmutableObject, _super);
function ImmutableObject(uid, content, prev, next, origin) {
this.content = content != null ? content : "";
this.content = content;
ImmutableObject.__super__.constructor.call(this, uid, prev, next, origin);
}

2
dest/lib/Types/BasicTypes.js.map
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File diff suppressed because one or more lines are too long

5
dest/lib/Types/JsonTypes.js
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@ -112,10 +112,11 @@ module.exports = function(HB) {
return JsonType.__super__.val.call(this, name, obj);
} else {
if (typeof content === 'string') {
word = HB.addOperation(new types.Word(HB.getNextOperationIdentifier(), content)).execute();
word = HB.addOperation(new types.Word(void 0)).execute();
word.insertText(0, content);
return JsonType.__super__.val.call(this, name, word);
} else if (content.constructor === Object) {
json = HB.addOperation(new JsonType(HB.getNextOperationIdentifier(), content, mutable)).execute();
json = HB.addOperation(new JsonType(void 0, content, mutable)).execute();
return JsonType.__super__.val.call(this, name, json);
} else {
throw new Error("You must not set " + (typeof content) + "-types in collaborative Json-objects!");

2
dest/lib/Types/JsonTypes.js.map
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@ -6,5 +6,5 @@
"JsonTypes.coffee"
],
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}

8
dest/lib/Types/StructuredTypes.js
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@ -21,7 +21,7 @@ module.exports = function(HB) {
var o, obj, result, _ref, _ref1;
if (content != null) {
if (this.map[name] == null) {
HB.addOperation(new AddName(HB.getNextOperationIdentifier(), this, name)).execute();
HB.addOperation(new AddName(void 0, this, name)).execute();
}
this.map[name].replace(content);
return this;
@ -105,8 +105,8 @@ module.exports = function(HB) {
this.saveOperation('beginning', beginning);
this.saveOperation('end', end);
} else {
this.beginning = HB.addOperation(new types.Delimiter(HB.getNextOperationIdentifier(), void 0, void 0));
this.end = HB.addOperation(new types.Delimiter(HB.getNextOperationIdentifier(), this.beginning, void 0));
this.beginning = HB.addOperation(new types.Delimiter(void 0, void 0, void 0));
this.end = HB.addOperation(new types.Delimiter(void 0, this.beginning, void 0));
this.beginning.next_cl = this.end;
this.beginning.execute();
this.end.execute();
@ -169,7 +169,7 @@ module.exports = function(HB) {
ReplaceManager.prototype.replace = function(content) {
var o, op;
o = this.getLastOperation();
op = new Replaceable(content, this, HB.getNextOperationIdentifier(), o, o.next_cl);
op = new Replaceable(content, this, void 0, o, o.next_cl);
return HB.addOperation(op).execute();
};

2
dest/lib/Types/StructuredTypes.js.map
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File diff suppressed because one or more lines are too long

9
dest/lib/Types/TextTypes.js
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@ -73,11 +73,8 @@ module.exports = function(HB) {
Word = (function(_super) {
__extends(Word, _super);
function Word(uid, initial_content, beginning, end, prev, next, origin) {
function Word(uid, beginning, end, prev, next, origin) {
Word.__super__.constructor.call(this, uid, beginning, end, prev, next, origin);
if (initial_content != null) {
this.insertText(0, initial_content);
}
}
Word.prototype.insertText = function(position, content) {
@ -86,7 +83,7 @@ module.exports = function(HB) {
_results = [];
for (_i = 0, _len = content.length; _i < _len; _i++) {
c = content[_i];
op = new TextInsert(c, HB.getNextOperationIdentifier(), o.prev_cl, o);
op = new TextInsert(c, void 0, o.prev_cl, o);
_results.push(HB.addOperation(op).execute());
}
return _results;
@ -171,7 +168,7 @@ module.exports = function(HB) {
parser['Word'] = function(json) {
var beginning, end, next, origin, prev, uid;
uid = json['uid'], beginning = json['beginning'], end = json['end'], prev = json['prev'], next = json['next'], origin = json['origin'];
return new Word(uid, void 0, beginning, end, prev, next, origin);
return new Word(uid, beginning, end, prev, next, origin);
};
types['TextInsert'] = TextInsert;
types['TextDelete'] = TextDelete;

2
dest/lib/Types/TextTypes.js.map
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@ -6,5 +6,5 @@
"TextTypes.coffee"
],
"names": [],
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}

2
dest/lib/Types/XmlTypes.js.map
View File

@ -6,5 +6,5 @@
"XmlTypes.coffee"
],
"names": [],
"mappings": "AA6KkB"
"mappings": "AA2KkB"
}

159
dest/test/JsonYatta_test.js
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@ -1,159 +0,0 @@
(function() {
var Connector_uninitialized, Yatta, chai, expect, should, sinon, sinonChai, _;
chai = require('chai');
expect = chai.expect;
should = chai.should();
sinon = require('sinon');
sinonChai = require('sinon-chai');
_ = require("underscore");
chai.use(sinonChai);
Yatta = require("../lib/Frameworks/JsonYatta.coffee");
Connector_uninitialized = require("../lib/Connectors/TestConnector.coffee");
/*
describe "JsonYatta", ->
beforeEach (done)->
@last_user = 10
@users = []
@Connector = Connector_uninitialized @users
for i in [0..(@last_user+1)]
@users.push(new Yatta i, @Connector)
done()
it "can handle many engines, many operations, concurrently (random)", ->
number_of_test_cases_multiplier = 1
repeat_this = 100 * number_of_test_cases_multiplier
doSomething_amount = 200 * number_of_test_cases_multiplier
number_of_engines = 12 + number_of_test_cases_multiplier - 1
@time = 0
@ops = 0
users = []
generateInsertOp = (user_num)->
chars = "1234567890"
pos = _.random 0, (users[user_num].val('name').length-1)
length = 1 #_.random 0, 10
nextchar = chars[(_.random 0, (chars.length-1))]
text = ""
_(length).times ()-> text += nextchar
users[user_num].val('name').insertText pos, text
null
generateReplaceOp = (user_num)->
chars = "abcdefghijklmnopqrstuvwxyz"
length = _.random 0, 10
nextchar = chars[(_.random 0, (chars.length-1))]
text = ""
_(length).times ()-> text += nextchar
users[user_num].val('name').replaceText text
generateDeleteOp = (user_num)->
if users[user_num].val('name').val().length > 0
pos = _.random 0, (users[user_num].val('name').val().length-1)
length = 1 # _.random 0, ot.val('name').length - pos
ops1 = users[user_num].val('name').deleteText pos, length
undefined
generateRandomOp = (user_num)->
op_gen = [generateDeleteOp, generateInsertOp, generateReplaceOp]
i = _.random (op_gen.length - 1)
op = op_gen[i](user_num)
applyRandomOp = (user_num)->
user = users[user_num]
user.getConnector().flushOneRandom()
doSomething = do ()->
()->
user_num = _.random (number_of_engines-1)
choices = [applyRandomOp, generateRandomOp]
*if (users[user_num].buffer[user_num].length < maximum_ops_per_engine)
* choices = choices.concat generateRandomOp
choice = _.random (choices.length-1)
choices[choice](user_num)
console.log ""
for times in [1..repeat_this]
*console.log "repeated_this x #{times} times"
users = []
Connector = Connector_uninitialized users
users.push(new Yatta 0, Connector)
users[0].val('name',"initial")
for i in [1...number_of_engines]
users.push(new Yatta i, Connector)
found_error = false
*try
time_now = (new Date).getTime()
for i in [1..doSomething_amount]
doSomething()
for user,user_number in users
user.getConnector().flushAll()
@time += (new Date()).getTime() - time_now
number_of_created_operations = 0
for i in [0...(users.length)]
number_of_created_operations += users[i].getConnector().getOpsInExecutionOrder().length
@ops += number_of_created_operations*users.length
ops_per_msek = Math.floor(@ops/@time)
console.log "#{times}/#{repeat_this}: Every collaborator (#{users.length}) applied #{number_of_created_operations} ops in a different order." + " Over all we consumed #{@ops} operations in #{@time/1000} seconds (#{ops_per_msek} ops/msek)."
console.log users[0].val('name').val()
for i in [0...(users.length-1)]
if ((users[i].val('name').val() isnt users[i+1].val('name').val()) )# and (number_of_created_operations <= 6 or true)) or found_error
printOpsInExecutionOrder = (otnumber, otherotnumber)->
ops = users[otnumber].getConnector().getOpsInExecutionOrder()
for s in ops
console.log JSON.stringify s
console.log ""
s = "ops = ["
for o,j in ops
if j isnt 0
s += ", "
s += "op#{j}"
s += "]"
console.log s
console.log "@users[@last_user].ot.applyOps ops"
console.log "expect(@users[@last_user].ot.val('name')).to.equal(\"#{users[otherotnumber].val('name')}\")"
ops
console.log ""
console.log "Found an OT Puzzle!"
console.log "OT states:"
for u,j in users
console.log "OT#{j}: "+u.val('name')
console.log "\nOT execution order (#{i},#{i+1}):"
printOpsInExecutionOrder i, i+1
console.log ""
ops = printOpsInExecutionOrder i+1, i
console.log ""
*/
}).call(this);

163
dest/test/TextYatta_test.js
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@ -1,163 +0,0 @@
(function() {
var Connector_uninitialized, Yatta, chai, expect, should, sinon, sinonChai, _;
chai = require('chai');
expect = chai.expect;
should = chai.should();
sinon = require('sinon');
sinonChai = require('sinon-chai');
_ = require("underscore");
chai.use(sinonChai);
Yatta = require("../lib/Frameworks/TextYatta.coffee");
Connector_uninitialized = require("../lib/Connectors/TestConnector.coffee");
/*
describe "TextYatta", ->
beforeEach (done)->
@last_user = 10
@users = []
@Connector = Connector_uninitialized @users
for i in [0..(@last_user+1)]
@users.push(new Yatta i, @Connector)
done()
it "handles inserts correctly", ->
it "can handle many engines, many operations, concurrently (random)", ->
number_of_test_cases_multiplier = 1
repeat_this = 1 * number_of_test_cases_multiplier
doSomething_amount = 500 * number_of_test_cases_multiplier
number_of_engines = 12 + number_of_test_cases_multiplier - 1
*maximum_ops_per_engine = 20 * number_of_test_cases_multiplier
@time = 0
@ops = 0
users = []
generateInsertOp = (user_num)->
chars = "1234567890"
pos = _.random 0, (users[user_num].val().length-1)
length = 1 #_.random 0, 10
nextchar = chars[(_.random 0, (chars.length-1))]
text = ""
_(length).times ()-> text += nextchar
users[user_num].insertText pos, text
null
generateReplaceOp = (user_num)->
chars = "abcdefghijklmnopqrstuvwxyz"
length = _.random 0, 10
nextchar = chars[(_.random 0, (chars.length-1))]
text = ""
_(length).times ()-> text += nextchar
users[user_num].replaceText text
generateDeleteOp = (user_num)->
if users[user_num].val().length > 0
pos = _.random 0, (users[user_num].val().length-1)
length = 1 # _.random 0, ot.val().length - pos
ops1 = users[user_num].deleteText pos, length
undefined
generateRandomOp = (user_num)->
op_gen = [generateDeleteOp, generateInsertOp, generateReplaceOp]
i = _.random (op_gen.length - 1)
op = op_gen[i](user_num)
applyRandomOp = (user_num)->
user = users[user_num]
user.getConnector().flushOneRandom()
doSomething = do ()->
()->
user_num = _.random (number_of_engines-1)
choices = [applyRandomOp, generateRandomOp]
*if (users[user_num].buffer[user_num].length < maximum_ops_per_engine)
* choices = choices.concat generateRandomOp
choice = _.random (choices.length-1)
choices[choice](user_num)
console.log ""
for times in [1..repeat_this]
*console.log "repeated_this x #{times} times"
users = []
Connector = Connector_uninitialized users
for i in [0..number_of_engines]
users.push(new Yatta i, Connector)
found_error = false
*try
time_now = (new Date).getTime()
for i in [1..doSomething_amount]
doSomething()
for user,user_number in users
user.getConnector().flushAll()
@time += (new Date()).getTime() - time_now
number_of_created_operations = 0
for i in [0...(users.length)]
number_of_created_operations += users[i].getConnector().getOpsInExecutionOrder().length
@ops += number_of_created_operations*users.length
ops_per_msek = Math.floor(@ops/@time)
console.log "#{times}/#{repeat_this}: Every collaborator (#{users.length}) applied #{number_of_created_operations} ops in a different order." + " Over all we consumed #{@ops} operations in #{@time/1000} seconds (#{ops_per_msek} ops/msek)."
console.log users[0].val()
found_inconsistency = false
for i in [0...(users.length-1)]
if ((users[i].val() isnt users[i+1].val()) )# and (number_of_created_operations <= 6 or true)) or found_error
found_inconsistency =true
printOpsInExecutionOrder = (otnumber, otherotnumber)->
ops = users[otnumber].getConnector().getOpsInExecutionOrder()
for s,j in ops
console.log "op#{j} = #{JSON.stringify s}"
console.log ""
s = "ops = ["
for o,j in ops
if j isnt 0
s += ", "
s += "op#{j}"
s += "]"
console.log s
console.log "@users[@last_user].ot.applyOps ops"
console.log "expect(@users[@last_user].val()).to.equal(\"#{users[otherotnumber].val()}\")"
ops
console.log ""
console.log "Found an OT Puzzle!"
console.log "OT states:"
for u,j in users
console.log "OT#{j}: "+u.val()
console.log "\nOT execution order (#{i},#{i+1}):"
printOpsInExecutionOrder i, i+1
console.log ""
ops = printOpsInExecutionOrder i+1, i
console.log ""
if found_inconsistency
throw new Error "dtrn"
* expect(users[i].ot.val()).to.equal(users[i+1].ot.val())
*/
}).call(this);

83
dest/test/Yatta_test.js
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@ -34,6 +34,7 @@
this.time = 0;
this.ops = 0;
this.time_now = 0;
this.debug = false;
this.reinitialize();
}
@ -123,7 +124,7 @@
};
Test.prototype.compareAll = function(test_number) {
var i, j, number_of_created_operations, ops, ops_per_msek, printOpsInExecutionOrder, u, _i, _j, _k, _len, _ref, _ref1, _results;
var i, j, number_of_created_operations, ops, ops_per_msek, printOpsInExecutionOrder, u, _i, _j, _k, _len, _ref, _ref1, _ref2, _results;
this.flushAll();
this.time += (new Date()).getTime() - this.time_now;
number_of_created_operations = 0;
@ -135,45 +136,53 @@
if (test_number != null) {
console.log(("" + test_number + "/" + this.repeat_this + ": Every collaborator (" + this.users.length + ") applied " + number_of_created_operations + " ops in a different order.") + (" Over all we consumed " + this.ops + " operations in " + (this.time / 1000) + " seconds (" + ops_per_msek + " ops/msek)."));
}
console.log(this.users.length);
_results = [];
for (i = _j = 0, _ref1 = this.users.length - 1; 0 <= _ref1 ? _j < _ref1 : _j > _ref1; i = 0 <= _ref1 ? ++_j : --_j) {
if (this.users[i].val('name').val() !== this.users[i + 1].val('name').val()) {
printOpsInExecutionOrder = function(otnumber, otherotnumber) {
var j, o, ops, s, _k, _l, _len, _len1;
ops = this.users[otnumber].getConnector().getOpsInExecutionOrder();
for (_k = 0, _len = ops.length; _k < _len; _k++) {
s = ops[_k];
console.log(JSON.stringify(s));
}
console.log("");
s = "ops = [";
for (j = _l = 0, _len1 = ops.length; _l < _len1; j = ++_l) {
o = ops[j];
if (j !== 0) {
s += ", ";
}
s += "op" + j;
}
s += "]";
console.log(s);
console.log("@users[@last_user].ot.applyOps ops");
console.log("expect(@users[@last_user].ot.val('name')).to.equal(\"" + (users[otherotnumber].val('name')) + "\")");
return ops;
};
console.log("");
console.log("Found an OT Puzzle!");
console.log("OT states:");
for (j = _k = 0, _len = users.length; _k < _len; j = ++_k) {
u = users[j];
console.log(("OT" + j + ": ") + u.val('name'));
}
console.log("\nOT execution order (" + i + "," + (i + 1) + "):");
printOpsInExecutionOrder(i, i + 1);
console.log("");
ops = printOpsInExecutionOrder(i + 1, i);
_results.push(console.log(""));
if (!this.debug) {
_results.push(expect(this.users[i].val('name').val()).to.equal(this.users[i + 1].val('name').val()));
} else {
_results.push(void 0);
if (this.users[i].val('name').val() !== this.users[i + 1].val('name').val()) {
printOpsInExecutionOrder = (function(_this) {
return function(otnumber, otherotnumber) {
var j, o, ops, s, _k, _l, _len, _len1;
ops = _this.users[otnumber].getConnector().getOpsInExecutionOrder();
for (_k = 0, _len = ops.length; _k < _len; _k++) {
s = ops[_k];
console.log(JSON.stringify(s));
}
console.log("");
s = "ops = [";
for (j = _l = 0, _len1 = ops.length; _l < _len1; j = ++_l) {
o = ops[j];
if (j !== 0) {
s += ", ";
}
s += "op" + j;
}
s += "]";
console.log(s);
console.log("@users[@last_user].ot.applyOps ops");
console.log("expect(@users[@last_user].ot.val('name')).to.equal(\"" + (_this.users[otherotnumber].val('name')) + "\")");
return ops;
};
})(this);
console.log("");
console.log("Found an OT Puzzle!");
console.log("OT states:");
_ref2 = this.users;
for (j = _k = 0, _len = _ref2.length; _k < _len; j = ++_k) {
u = _ref2[j];
console.log(("OT" + j + ": ") + u.val('name'));
}
console.log("\nOT execution order (" + i + "," + (i + 1) + "):");
printOpsInExecutionOrder(i, i + 1);
console.log("");
ops = printOpsInExecutionOrder(i + 1, i);
_results.push(console.log(""));
} else {
_results.push(void 0);
}
}
}
return _results;

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doc/alphabetical_index.html
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@ -342,7 +342,7 @@
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doc/class/AddName.html
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@ -142,7 +142,7 @@ only one will AddName operation will be executed.</p>
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doc/class/Delete.html
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@ -157,7 +157,7 @@ This result can be sent to other clients.</p>
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doc/class/Delimiter.html
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@ -118,7 +118,7 @@ of the Engine is empty.</p>
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doc/class/Engine.html
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@ -72,6 +72,11 @@
</a>
</span>
<span class='desc'>
<p>ops = [] for o in ops_json ops.push @parseOperation o
for o in ops @HB.addOperation o
for o in ops if not o.execute()
@unprocessed_ops.push o
@tryUnprocessed()</p>
</span>
</li>
<li>
@ -125,7 +130,16 @@
<b>applyOp</b><span>(op_json)</span>
<br>
</p>
<div class='docstring'>
<p>ops = []
for o in ops_json ops.push @parseOperation o
for o in ops @HB.addOperation o
for o in ops if not o.execute()
@unprocessed_ops.push o
@tryUnprocessed()</p>
</div>
<div class='tags'>
</div>
</div>
<div class='method_details'>
<p class='signature' id='tryUnprocessed-dynamic'>
@ -139,7 +153,7 @@
</div>
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doc/class/HistoryBuffer.html
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@ -57,6 +57,18 @@
Get the user id with wich the History Buffer was initialized.
</span>
</li>
<li>
<span class='signature'>
<a href='#getReservedUniqueIdentifier-dynamic'>
#
(void)
<b>getReservedUniqueIdentifier</b><span>()</span>
</a>
</span>
<span class='desc'>
There is only one reserved unique identifier (uid), so use it wisely.
</span>
</li>
<li>
<span class='signature'>
<a href='#getOperationCounter-dynamic'>
@ -159,6 +171,22 @@
<p>Get the user id with wich the History Buffer was initialized.</p>
</div>
<div class='tags'>
</div>
</div>
<div class='method_details'>
<p class='signature' id='getReservedUniqueIdentifier-dynamic'>
#
(void)
<b>getReservedUniqueIdentifier</b><span>()</span>
<br>
</p>
<div class='docstring'>
<p>There is only one reserved unique identifier (uid), so use it wisely.
I propose to use it in your Framework, to create something like a root element.
An operation with this identifier is not propagated to other clients.
This is why everybode must create the same operation with this uid.</p>
</div>
<div class='tags'>
</div>
</div>
<div class='method_details'>
@ -228,7 +256,7 @@ other operations (it wont executed)</p>
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doc/class/ImmutableObject.html
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@ -93,7 +93,7 @@
<p class='signature' id='constructor-dynamic'>
#
(void)
<b>constructor</b><span>(uid, content = &quot;&quot;, prev, next, origin)</span>
<b>constructor</b><span>(uid, content, prev, next, origin)</span>
<br>
</p>
<div class='tags'>
@ -156,7 +156,7 @@
</div>
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doc/class/Insert.html
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@ -256,7 +256,7 @@ TODO (Unused)</p>
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doc/class/IwcConnector.html
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@ -168,7 +168,7 @@
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doc/class/JsonType.html
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@ -286,7 +286,7 @@
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doc/class/JsonWrapper.html
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@ -121,7 +121,7 @@ console.log(w.newProperty == &quot;Awesome&quot;) # true!</code></pre>
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doc/class/JsonYatta.html
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@ -250,7 +250,7 @@ JsonYatta was initialized (Depending on the HistoryBuffer implementation).</p>
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doc/class/ListManager.html
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@ -208,7 +208,7 @@ Doesn&#39;t return left-right delimiter.</p>
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doc/class/MapManager.html
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@ -99,7 +99,7 @@
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doc/class/Operation.html
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@ -284,7 +284,7 @@ an easy way to refer to these operations via an uid or object reference.</p><p>F
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doc/class/ReplaceManager.html
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@ -189,7 +189,7 @@ Each Replaceable holds a value that is now replaceable.</p><p>The Word-type has
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@ -219,7 +219,7 @@
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doc/class/TextInsert.html
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doc/class/TextYatta.html
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@ -239,7 +239,7 @@
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doc/class/Word.html
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@ -126,7 +126,7 @@
<p class='signature' id='constructor-dynamic'>
#
(void)
<b>constructor</b><span>(uid, initial_content, beginning, end, prev, next, origin)</span>
<b>constructor</b><span>(uid, beginning, end, prev, next, origin)</span>
<br>
</p>
<div class='tags'>
@ -142,14 +142,6 @@
&mdash;
<span class='desc'>A unique identifier. If uid is undefined, a new uid will be created. </span>
</li>
<li>
<span class='name'>initial_content</span>
<span class='type'>
(
<tt>String</tt>
)
</span>
</li>
</ul>
</div>
</div>
@ -241,7 +233,7 @@ to provide replace functionality.</p>
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doc/extra/LICENSE.txt.html
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@ -38,7 +38,7 @@
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doc/extra/README.md.html
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@ -34,11 +34,35 @@
</p>
</nav>
<div id='filecontents'>
<h1 id="-yatta-yatta-svg-raw-true-"><a href="./Yatta.svg?raw=true">Yatta!</a></h1><p>A Collaboration Framework for arbitrary data structures that is <em>not</em> based on Operational Transformation.</p><h1 id="license">License</h1><p>Yatta! is licensed under the <a href="./LICENSE.txt">MIT license</a>.</p>
<h1 id="-yatta-extras-imgs-yatta_logo-png-raw-true-"><img src="./extras/imgs/Yatta_logo.png?raw=true" alt="Yatta!"></h1><p>A real-time web framework that manages concurrency control for arbitrary data structures and is <em>not</em> based on Operational Transformation.
Yatta! provides similar functionality as <a href="https://github.com/share/ShareJS">ShareJs</a> and <a href="https://github.com/opencoweb/coweb">OpenCoweb</a>
but does not require you to understand how the internals work. The predefined data structures provide a simple API to access your shared data structures.</p><p>Predefined data structures:</p><ul>
<li>Text</li>
<li>Json - <a href="./examples/IwcJson.md">example</a></li>
<li>XML (coming soon)</li>
</ul><p>Unlike other frameworks, Yatta! supports P2P message propagation and is not bound to a specific communication protocol.</p><p>Currently supported communication protocols:</p><ul>
<li><a href="http://dbis.rwth-aachen.de/gadgets/iwc/resources/iwc.manual.pdf">IWC</a> - Inter-widget Communication</li>
</ul>
<h1 id="about">About</h1><p>Find out more about the concurrent editing problem here
<a href="http://opencoweb.org/ocwdocs/intro/openg.html">Cooperation, Concurrency, Conflicts, and Convergence</a> and here
<a href="http://en.wikipedia.org/wiki/Operational_transformation">Operational Transformation (OT)</a></p><p>My Bachelor Thesis project aim was to develop a P2P OT Framework that enables collaboration on XML documents and supports
<a href="http://www3.ntu.edu.sg/home/czsun/projects/otfaq/#intentionPreservation">Intention Preservation</a>.
After some time I realized that OT has significant drawbacks in P2P environments.</p><p>With my gained experiences I came up with a new approach. I named it Yata - Yet Another Transformation Approach.
It enables concurrent editing with the following space and time properties:</p><ul>
<li>Time complexity: O(S), whereby S is the number of operations that are inserted concurrently at the same position. This means that my approach does not transform against operations that happen on other positions.</li>
<li>Space complexity = O(|Document|), whereby |Document| is the size of the shared document. Depending on the used data structure, Yata may needs 4*|Document| of space.</li>
</ul><p>This means that my approach beats all OT time complexities. Furthermore, it is possible to make a very strict definition of Intention Preservation, and I was able to
show that it is never violated.</p><p>Another advantage of my approach is that propagated messages are very small.
Background: In real-time P2P OT algorithms you have to send a state-vector with every message that defines the state of the History Buffer
on which the operation was created. This is not necessary in Yata.</p><p>One downside is that the History Buffer holds at least as many operations as there are characters in the document.
In contrast, an OT algorithm can have an empty History Buffer while the document size is very big.</p><p>So, how did I come up with the name for the implementation (Yatta! is not Yata)?
<img src="./extras/imgs/YATTA.png" alt="YATTA!">
Yatta! means &quot;I did it!&quot; in Japanese. You scream it when you accomplish something (for proper application I refer to the Yatta-man in <a href="http://heroeswiki.com/Yatta!">Heroes</a>).
There is also this awesome video on the Internet that will change your life <a href="https://www.youtube.com/watch?v=kL5DDSglM_s">Yatta</a>.</p><h1 id="status">Status</h1><p>Yatta! is still in an early development phase.</p><h1 id="support">Support</h1><p>Please report any issues to the <a href="https://github.com/DadaMonad/Yatta/issues">Github issue page</a>!</p><h1 id="license">License</h1><p>Yatta! is licensed under the <a href="./LICENSE.txt">MIT License</a>.</p>
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@ -43,7 +43,7 @@
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2
doc/file/lib/Connectors/IwcConnector.coffee.html
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@ -84,7 +84,7 @@
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</div>
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2
doc/file/lib/Connectors/TestConnector.coffee.html
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@ -39,7 +39,7 @@
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</div>
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doc/file/lib/Engine.coffee.html
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@ -58,7 +58,7 @@
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2
doc/file/lib/Frameworks/JsonYatta.coffee.html
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@ -68,7 +68,7 @@
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2
doc/file/lib/Frameworks/TextYatta.coffee.html
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@ -60,7 +60,7 @@
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doc/file/lib/HistoryBuffer.coffee.html
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@ -58,7 +58,7 @@
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doc/file/lib/Types/BasicTypes.coffee.html
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@ -39,7 +39,7 @@
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2
doc/file/lib/Types/JsonTypes.coffee.html
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@ -39,7 +39,7 @@
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doc/file/lib/Types/StructuredTypes.coffee.html
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2
doc/file/lib/Types/TextTypes.coffee.html
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@ -39,7 +39,7 @@
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doc/file/lib/Types/XmlTypes.coffee.html
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2
doc/javascript/search.js
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File diff suppressed because one or more lines are too long

94
doc/method_list.html
View File

@ -301,14 +301,6 @@
(lib&#47;Connectors&#47;IwcConnector.coffee)
</small>
</li>
<li>
<a href='class/Word.html#deleteText-dynamic' target='main' title='deleteText'>
#deleteText
</a>
<small>
(Word)
</small>
</li>
<li>
<a href='class/TextYatta.html#deleteText-dynamic' target='main' title='deleteText'>
#deleteText
@ -317,6 +309,14 @@
(TextYatta)
</small>
</li>
<li>
<a href='class/Word.html#deleteText-dynamic' target='main' title='deleteText'>
#deleteText
</a>
<small>
(Word)
</small>
</li>
<li>
<a href='class/Operation.html#execute-dynamic' target='main' title='execute'>
#execute
@ -326,11 +326,11 @@
</small>
</li>
<li>
<a href='class/Delimiter.html#execute-dynamic' target='main' title='execute'>
<a href='class/AddName.html#execute-dynamic' target='main' title='execute'>
#execute
</a>
<small>
(Delimiter)
(AddName)
</small>
</li>
<li>
@ -350,11 +350,11 @@
</small>
</li>
<li>
<a href='class/AddName.html#execute-dynamic' target='main' title='execute'>
<a href='class/Delimiter.html#execute-dynamic' target='main' title='execute'>
#execute
</a>
<small>
(AddName)
(Delimiter)
</small>
</li>
<li>
@ -510,11 +510,11 @@
</small>
</li>
<li>
<a href='class/JsonYatta.html#getRootElement-dynamic' target='main' title='getRootElement'>
#getRootElement
<a href='class/HistoryBuffer.html#getReservedUniqueIdentifier-dynamic' target='main' title='getReservedUniqueIdentifier'>
#getReservedUniqueIdentifier
</a>
<small>
(JsonYatta)
(HistoryBuffer)
</small>
</li>
<li>
@ -525,6 +525,14 @@
(IwcConnector)
</small>
</li>
<li>
<a href='class/JsonYatta.html#getRootElement-dynamic' target='main' title='getRootElement'>
#getRootElement
</a>
<small>
(JsonYatta)
</small>
</li>
<li>
<a href='class/TestConnector.html#getRootElement-dynamic' target='main' title='getRootElement'>
#getRootElement
@ -550,11 +558,11 @@
</small>
</li>
<li>
<a href='class/TextYatta.html#getUserId-dynamic' target='main' title='getUserId'>
<a href='class/JsonYatta.html#getUserId-dynamic' target='main' title='getUserId'>
#getUserId
</a>
<small>
(TextYatta)
(JsonYatta)
</small>
</li>
<li>
@ -566,11 +574,11 @@
</small>
</li>
<li>
<a href='class/JsonYatta.html#getUserId-dynamic' target='main' title='getUserId'>
<a href='class/TextYatta.html#getUserId-dynamic' target='main' title='getUserId'>
#getUserId
</a>
<small>
(JsonYatta)
(TextYatta)
</small>
</li>
<li>
@ -661,14 +669,6 @@
(Operation)
</small>
</li>
<li>
<a href='class/TestConnector.html#send-dynamic' target='main' title='send'>
#send
</a>
<small>
(TestConnector)
</small>
</li>
<li>
<a href='class/IwcConnector.html#send-dynamic' target='main' title='send'>
#send
@ -677,6 +677,14 @@
(IwcConnector)
</small>
</li>
<li>
<a href='class/TestConnector.html#send-dynamic' target='main' title='send'>
#send
</a>
<small>
(TestConnector)
</small>
</li>
<li>
<a href='class/IwcConnector.html#sendIwcIntent-dynamic' target='main' title='sendIwcIntent'>
#sendIwcIntent
@ -765,6 +773,22 @@
(TextInsert)
</small>
</li>
<li>
<a href='class/JsonType.html#val-dynamic' target='main' title='val'>
#val
</a>
<small>
(JsonType)
</small>
</li>
<li>
<a href='class/TextYatta.html#val-dynamic' target='main' title='val'>
#val
</a>
<small>
(TextYatta)
</small>
</li>
<li>
<a href='class/Replaceable.html#val-dynamic' target='main' title='val'>
#val
@ -781,22 +805,6 @@
(MapManager)
</small>
</li>
<li>
<a href='class/TextYatta.html#val-dynamic' target='main' title='val'>
#val
</a>
<small>
(TextYatta)
</small>
</li>
<li>
<a href='class/JsonType.html#val-dynamic' target='main' title='val'>
#val
</a>
<small>
(JsonType)
</small>
</li>
<li>
<a href='class/JsonYatta.html#val-dynamic' target='main' title='val'>
#val

4
lib/Connectors/TestConnector.coffee
View File

@ -35,8 +35,8 @@ module.exports = (user_list)->
user.getConnector().receive(o)
receive: (o)->
@unexecuted[o.creator] ?= []
@unexecuted[o.creator].push o
@unexecuted[o.uid.creator] ?= []
@unexecuted[o.uid.creator].push o
flushOne: (user)->
if @unexecuted[user]?.length > 0

5
lib/Engine.coffee
View File

@ -14,6 +14,9 @@ class Engine
throw new Error "You forgot to specify a parser for type #{json.type}. The message is #{JSON.stringify json}."
applyOps: (ops_json)->
for o in ops_json
@applyOp o
###
ops = []
for o in ops_json
ops.push @parseOperation o
@ -23,7 +26,7 @@ class Engine
if not o.execute()
@unprocessed_ops.push o
@tryUnprocessed()
###
applyOp: (op_json)->
# $parse_and_execute will return false if $o_json was parsed and executed, otherwise the parsed operadion
o = @parseOperation op_json

13
lib/Frameworks/JsonYatta.coffee
View File

@ -16,14 +16,11 @@ class JsonYatta
json_types = json_types_uninitialized @HB
@engine = new Engine @HB, json_types.parser
@connector = new Connector @engine, @HB, json_types.execution_listener, @
root_elem = @connector.getRootElement()
if not root_elem?
first_word = new json_types.types.JsonType @HB.getNextOperationIdentifier()
@HB.addOperation(first_word)
first_word.execute()
@root_element = first_word
else
@root_element = @HB.getOperation(root_elem)
first_word = new json_types.types.JsonType @HB.getReservedUniqueIdentifier()
@HB.addOperation(first_word).execute()
@root_element = first_word
#
# @result JsonType

12
lib/HistoryBuffer.coffee
View File

@ -21,6 +21,18 @@ class HistoryBuffer
getUserId: ()->
@user_id
#
# There is only one reserved unique identifier (uid), so use it wisely.
# I propose to use it in your Framework, to create something like a root element.
# An operation with this identifier is not propagated to other clients.
# This is why everybode must create the same operation with this uid.
#
getReservedUniqueIdentifier: ()->
{
creator : '_'
op_number : '_'
}
#
# Get the operation counter that describes the current state of the document.
#

2
lib/Types/BasicTypes.coffee
View File

@ -294,7 +294,7 @@ module.exports = (HB)->
# @param {Object} uid A unique identifier. If uid is undefined, a new uid will be created.
# @param {Object} content
#
constructor: (uid, @content="", prev, next, origin)->
constructor: (uid, @content, prev, next, origin)->
super uid, prev, next, origin
#

5
lib/Types/JsonTypes.coffee
View File

@ -155,10 +155,11 @@ module.exports = (HB)->
super name, obj
else
if typeof content is 'string'
word = HB.addOperation(new types.Word HB.getNextOperationIdentifier(), content).execute()
word = HB.addOperation(new types.Word undefined).execute()
word.insertText 0, content
super name, word
else if content.constructor is Object
json = HB.addOperation(new JsonType HB.getNextOperationIdentifier(), content, mutable).execute()
json = HB.addOperation(new JsonType undefined, content, mutable).execute()
super name, json
else
throw new Error "You must not set #{typeof content}-types in collaborative Json-objects!"

10
lib/Types/StructuredTypes.coffee
View File

@ -20,7 +20,7 @@ module.exports = (HB)->
val: (name, content)->
if content?
if not @map[name]?
HB.addOperation(new AddName HB.getNextOperationIdentifier(), @, name).execute()
HB.addOperation(new AddName undefined, @, name).execute()
@map[name].replace content
@
else if name?
@ -103,14 +103,14 @@ module.exports = (HB)->
@saveOperation 'beginning', beginning
@saveOperation 'end', end
else
@beginning = HB.addOperation new types.Delimiter HB.getNextOperationIdentifier(), undefined, undefined
@end = HB.addOperation new types.Delimiter HB.getNextOperationIdentifier(), @beginning, undefined
@beginning = HB.addOperation new types.Delimiter undefined, undefined, undefined
@end = HB.addOperation new types.Delimiter undefined, @beginning, undefined
@beginning.next_cl = @end
@beginning.execute()
@end.execute()
super uid, prev, next, origin
# Get the element previous to the delemiter at the end
getLastOperation: ()->
@end.prev_cl
@ -165,7 +165,7 @@ module.exports = (HB)->
replace: (content)->
o = @getLastOperation()
op = new Replaceable content, @, HB.getNextOperationIdentifier(), o, o.next_cl
op = new Replaceable content, @, undefined, o, o.next_cl
HB.addOperation(op).execute()
val: ()->

10
lib/Types/TextTypes.coffee
View File

@ -78,19 +78,17 @@ module.exports = (HB)->
#
# @param {Object} uid A unique identifier. If uid is undefined, a new uid will be created.
# @param {String} initial_content
#
constructor: (uid, initial_content, beginning, end, prev, next, origin)->
constructor: (uid, beginning, end, prev, next, origin)->
super uid, beginning, end, prev, next, origin
if initial_content?
@insertText 0, initial_content
#
# Inserts a string into the word
#
insertText: (position, content)->
o = @getOperationByPosition position
for c in content
op = new TextInsert c, HB.getNextOperationIdentifier(), o.prev_cl, o
op = new TextInsert c, undefined, o.prev_cl, o
HB.addOperation(op).execute()
#
@ -166,7 +164,7 @@ module.exports = (HB)->
'next': next
'origin' : origin
} = json
new Word uid, undefined, beginning, end, prev, next, origin
new Word uid, beginning, end, prev, next, origin
types['TextInsert'] = TextInsert
types['TextDelete'] = TextDelete

3
package.json
View File

@ -25,6 +25,7 @@
"homepage": "https://github.com/DadaMonad/Yatta",
"dependencies": {},
"devDependencies": {
"chai": "^1.9.1",
"coffeeify": "^0.6.0",
"grunt": "^0.4.5",
"grunt-browserify": "^2.1.3",
@ -36,9 +37,9 @@
"grunt-contrib-watch": "^0.6.1",
"grunt-literate": "^0.2.0",
"grunt-simple-mocha": "^0.4.0",
"mocha": "^1.21.4",
"sinon": "^1.10.2",
"sinon-chai": "^2.5.0",
"chai": "^1.9.1",
"underscore": "^1.6.0"
}
}

146
test/JsonYatta_test.coffee
View File

@ -1,146 +0,0 @@
chai = require('chai')
expect = chai.expect
should = chai.should()
sinon = require('sinon')
sinonChai = require('sinon-chai')
_ = require "underscore"
chai.use(sinonChai)
Yatta = require "../lib/Frameworks/JsonYatta.coffee"
Connector_uninitialized = require "../lib/Connectors/TestConnector.coffee"
###
describe "JsonYatta", ->
beforeEach (done)->
@last_user = 10
@users = []
@Connector = Connector_uninitialized @users
for i in [0..(@last_user+1)]
@users.push(new Yatta i, @Connector)
done()
it "can handle many engines, many operations, concurrently (random)", ->
number_of_test_cases_multiplier = 1
repeat_this = 100 * number_of_test_cases_multiplier
doSomething_amount = 200 * number_of_test_cases_multiplier
number_of_engines = 12 + number_of_test_cases_multiplier - 1
@time = 0
@ops = 0
users = []
generateInsertOp = (user_num)->
chars = "1234567890"
pos = _.random 0, (users[user_num].val('name').length-1)
length = 1 #_.random 0, 10
nextchar = chars[(_.random 0, (chars.length-1))]
text = ""
_(length).times ()-> text += nextchar
users[user_num].val('name').insertText pos, text
null
generateReplaceOp = (user_num)->
chars = "abcdefghijklmnopqrstuvwxyz"
length = _.random 0, 10
nextchar = chars[(_.random 0, (chars.length-1))]
text = ""
_(length).times ()-> text += nextchar
users[user_num].val('name').replaceText text
generateDeleteOp = (user_num)->
if users[user_num].val('name').val().length > 0
pos = _.random 0, (users[user_num].val('name').val().length-1)
length = 1 # _.random 0, ot.val('name').length - pos
ops1 = users[user_num].val('name').deleteText pos, length
undefined
generateRandomOp = (user_num)->
op_gen = [generateDeleteOp, generateInsertOp, generateReplaceOp]
i = _.random (op_gen.length - 1)
op = op_gen[i](user_num)
applyRandomOp = (user_num)->
user = users[user_num]
user.getConnector().flushOneRandom()
doSomething = do ()->
()->
user_num = _.random (number_of_engines-1)
choices = [applyRandomOp, generateRandomOp]
#if (users[user_num].buffer[user_num].length < maximum_ops_per_engine)
# choices = choices.concat generateRandomOp
choice = _.random (choices.length-1)
choices[choice](user_num)
console.log ""
for times in [1..repeat_this]
#console.log "repeated_this x #{times} times"
users = []
Connector = Connector_uninitialized users
users.push(new Yatta 0, Connector)
users[0].val('name',"initial")
for i in [1...number_of_engines]
users.push(new Yatta i, Connector)
found_error = false
#try
time_now = (new Date).getTime()
for i in [1..doSomething_amount]
doSomething()
for user,user_number in users
user.getConnector().flushAll()
@time += (new Date()).getTime() - time_now
number_of_created_operations = 0
for i in [0...(users.length)]
number_of_created_operations += users[i].getConnector().getOpsInExecutionOrder().length
@ops += number_of_created_operations*users.length
ops_per_msek = Math.floor(@ops/@time)
console.log "#{times}/#{repeat_this}: Every collaborator (#{users.length}) applied #{number_of_created_operations} ops in a different order." + " Over all we consumed #{@ops} operations in #{@time/1000} seconds (#{ops_per_msek} ops/msek)."
console.log users[0].val('name').val()
for i in [0...(users.length-1)]
if ((users[i].val('name').val() isnt users[i+1].val('name').val()) )# and (number_of_created_operations <= 6 or true)) or found_error
printOpsInExecutionOrder = (otnumber, otherotnumber)->
ops = users[otnumber].getConnector().getOpsInExecutionOrder()
for s in ops
console.log JSON.stringify s
console.log ""
s = "ops = ["
for o,j in ops
if j isnt 0
s += ", "
s += "op#{j}"
s += "]"
console.log s
console.log "@users[@last_user].ot.applyOps ops"
console.log "expect(@users[@last_user].ot.val('name')).to.equal(\"#{users[otherotnumber].val('name')}\")"
ops
console.log ""
console.log "Found an OT Puzzle!"
console.log "OT states:"
for u,j in users
console.log "OT#{j}: "+u.val('name')
console.log "\nOT execution order (#{i},#{i+1}):"
printOpsInExecutionOrder i, i+1
console.log ""
ops = printOpsInExecutionOrder i+1, i
console.log ""
###

152
test/TextYatta_test.coffee
View File

@ -1,152 +0,0 @@
chai = require('chai')
expect = chai.expect
should = chai.should()
sinon = require('sinon')
sinonChai = require('sinon-chai')
_ = require "underscore"
chai.use(sinonChai)
Yatta = require "../lib/Frameworks/TextYatta.coffee"
Connector_uninitialized = require "../lib/Connectors/TestConnector.coffee"
###
describe "TextYatta", ->
beforeEach (done)->
@last_user = 10
@users = []
@Connector = Connector_uninitialized @users
for i in [0..(@last_user+1)]
@users.push(new Yatta i, @Connector)
done()
it "handles inserts correctly", ->
it "can handle many engines, many operations, concurrently (random)", ->
number_of_test_cases_multiplier = 1
repeat_this = 1 * number_of_test_cases_multiplier
doSomething_amount = 500 * number_of_test_cases_multiplier
number_of_engines = 12 + number_of_test_cases_multiplier - 1
#maximum_ops_per_engine = 20 * number_of_test_cases_multiplier
@time = 0
@ops = 0
users = []
generateInsertOp = (user_num)->
chars = "1234567890"
pos = _.random 0, (users[user_num].val().length-1)
length = 1 #_.random 0, 10
nextchar = chars[(_.random 0, (chars.length-1))]
text = ""
_(length).times ()-> text += nextchar
users[user_num].insertText pos, text
null
generateReplaceOp = (user_num)->
chars = "abcdefghijklmnopqrstuvwxyz"
length = _.random 0, 10
nextchar = chars[(_.random 0, (chars.length-1))]
text = ""
_(length).times ()-> text += nextchar
users[user_num].replaceText text
generateDeleteOp = (user_num)->
if users[user_num].val().length > 0
pos = _.random 0, (users[user_num].val().length-1)
length = 1 # _.random 0, ot.val().length - pos
ops1 = users[user_num].deleteText pos, length
undefined
generateRandomOp = (user_num)->
op_gen = [generateDeleteOp, generateInsertOp, generateReplaceOp]
i = _.random (op_gen.length - 1)
op = op_gen[i](user_num)
applyRandomOp = (user_num)->
user = users[user_num]
user.getConnector().flushOneRandom()
doSomething = do ()->
()->
user_num = _.random (number_of_engines-1)
choices = [applyRandomOp, generateRandomOp]
#if (users[user_num].buffer[user_num].length < maximum_ops_per_engine)
# choices = choices.concat generateRandomOp
choice = _.random (choices.length-1)
choices[choice](user_num)
console.log ""
for times in [1..repeat_this]
#console.log "repeated_this x #{times} times"
users = []
Connector = Connector_uninitialized users
for i in [0..number_of_engines]
users.push(new Yatta i, Connector)
found_error = false
#try
time_now = (new Date).getTime()
for i in [1..doSomething_amount]
doSomething()
for user,user_number in users
user.getConnector().flushAll()
@time += (new Date()).getTime() - time_now
number_of_created_operations = 0
for i in [0...(users.length)]
number_of_created_operations += users[i].getConnector().getOpsInExecutionOrder().length
@ops += number_of_created_operations*users.length
ops_per_msek = Math.floor(@ops/@time)
console.log "#{times}/#{repeat_this}: Every collaborator (#{users.length}) applied #{number_of_created_operations} ops in a different order." + " Over all we consumed #{@ops} operations in #{@time/1000} seconds (#{ops_per_msek} ops/msek)."
console.log users[0].val()
found_inconsistency = false
for i in [0...(users.length-1)]
if ((users[i].val() isnt users[i+1].val()) )# and (number_of_created_operations <= 6 or true)) or found_error
found_inconsistency =true
printOpsInExecutionOrder = (otnumber, otherotnumber)->
ops = users[otnumber].getConnector().getOpsInExecutionOrder()
for s,j in ops
console.log "op#{j} = #{JSON.stringify s}"
console.log ""
s = "ops = ["
for o,j in ops
if j isnt 0
s += ", "
s += "op#{j}"
s += "]"
console.log s
console.log "@users[@last_user].ot.applyOps ops"
console.log "expect(@users[@last_user].val()).to.equal(\"#{users[otherotnumber].val()}\")"
ops
console.log ""
console.log "Found an OT Puzzle!"
console.log "OT states:"
for u,j in users
console.log "OT#{j}: "+u.val()
console.log "\nOT execution order (#{i},#{i+1}):"
printOpsInExecutionOrder i, i+1
console.log ""
ops = printOpsInExecutionOrder i+1, i
console.log ""
if found_inconsistency
throw new Error "dtrn"
# expect(users[i].ot.val()).to.equal(users[i+1].ot.val())
###

71
test/Yatta_test.coffee
View File

@ -13,7 +13,7 @@ Connector_uninitialized = require "../lib/Connectors/TestConnector.coffee"
class Test
constructor: ()->
@number_of_test_cases_multiplier = 1
@repeat_this = 1 * @number_of_test_cases_multiplier
@repeat_this = 1000 * @number_of_test_cases_multiplier
@doSomething_amount = 5000 * @number_of_test_cases_multiplier
@number_of_engines = 10 + @number_of_test_cases_multiplier - 1
@ -21,16 +21,18 @@ class Test
@ops = 0
@time_now = 0
@debug = false
@reinitialize()
reinitialize: ()->
@users = []
@Connector = Connector_uninitialized @users
@users.push(new Yatta 0, @Connector)
@users[0].val('name',"initial")
for i in [1...@number_of_engines]
for i in [0...@number_of_engines]
@users.push(new Yatta i, @Connector)
@users[0].val('name',"initial")
@flushAll()
getSomeUser: ()->
i = _.random 0, (@users.length-1)
@ -61,7 +63,7 @@ class Test
undefined
generateRandomOp: (user_num)=>
op_gen = [@generateDeleteOp, @generateInsertOp, @generateReplaceOp]
op_gen = [@generateDeleteOp, @generateInsertOp]#, @generateReplaceOp]
i = _.random (op_gen.length - 1)
op = op_gen[i](user_num)
@ -92,37 +94,41 @@ class Test
ops_per_msek = Math.floor(@ops/@time)
if test_number?
console.log "#{test_number}/#{@repeat_this}: Every collaborator (#{@users.length}) applied #{number_of_created_operations} ops in a different order." + " Over all we consumed #{@ops} operations in #{@time/1000} seconds (#{ops_per_msek} ops/msek)."
console.log @users.length
#console.log users[0].val('name').val()
for i in [0...(@users.length-1)]
if ((@users[i].val('name').val() isnt @users[i+1].val('name').val()) )# and (number_of_created_operations <= 6 or true)) or found_error
printOpsInExecutionOrder = (otnumber, otherotnumber)->
ops = @users[otnumber].getConnector().getOpsInExecutionOrder()
for s in ops
console.log JSON.stringify s
if not @debug
if (@users[i].val('name').val() isnt @users[i+1].val('name').val())
console.log "found error"
expect(@users[i].val('name').val()).to.equal(@users[i+1].val('name').val())
else
if ((@users[i].val('name').val() isnt @users[i+1].val('name').val()) )# and (number_of_created_operations <= 6 or true)) or found_error
printOpsInExecutionOrder = (otnumber, otherotnumber)=>
ops = @users[otnumber].getConnector().getOpsInExecutionOrder()
for s in ops
console.log JSON.stringify s
console.log ""
s = "ops = ["
for o,j in ops
if j isnt 0
s += ", "
s += "op#{j}"
s += "]"
console.log s
console.log "@users[@last_user].ot.applyOps ops"
console.log "expect(@users[@last_user].ot.val('name')).to.equal(\"#{@users[otherotnumber].val('name')}\")"
ops
console.log ""
s = "ops = ["
for o,j in ops
if j isnt 0
s += ", "
s += "op#{j}"
s += "]"
console.log s
console.log "@users[@last_user].ot.applyOps ops"
console.log "expect(@users[@last_user].ot.val('name')).to.equal(\"#{users[otherotnumber].val('name')}\")"
ops
console.log ""
console.log "Found an OT Puzzle!"
console.log "OT states:"
for u,j in users
console.log "OT#{j}: "+u.val('name')
console.log "\nOT execution order (#{i},#{i+1}):"
printOpsInExecutionOrder i, i+1
console.log ""
ops = printOpsInExecutionOrder i+1, i
console.log "Found an OT Puzzle!"
console.log "OT states:"
for u,j in @users
console.log "OT#{j}: "+u.val('name')
console.log "\nOT execution order (#{i},#{i+1}):"
printOpsInExecutionOrder i, i+1
console.log ""
ops = printOpsInExecutionOrder i+1, i
console.log ""
console.log ""
run: ()->
console.log ''
@ -136,6 +142,7 @@ class Test
describe "JsonYatta", ->
beforeEach (done)->
@timeout 50000
@yTest = new Test()
done()