com.cognitect.transit.handlers.js Maven / Gradle / Ivy
// Copyright 2014 Cognitect. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS-IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
goog.provide("com.cognitect.transit.handlers");
goog.require("com.cognitect.transit.util");
goog.require("com.cognitect.transit.types");
goog.require("goog.math.Long");
goog.scope(function () {
var handlers = com.cognitect.transit.handlers,
util = com.cognitect.transit.util,
types = com.cognitect.transit.types,
Long = goog.math.Long;
handlers.ctorGuid = 0;
/**
* @const
* @type {string}
*/
handlers.ctorGuidProperty = "transit$guid$" + util.randomUUID();
handlers.typeTag = function (ctor) {
if (ctor == null) {
return "null";
} else if (ctor === String) {
return "string";
} else if (ctor === Boolean) {
return "boolean";
} else if (ctor === Number) {
return "number";
} else if (ctor === Array) {
return "array";
} else if (ctor === Object) {
return "map";
} else {
var tag = ctor[handlers.ctorGuidProperty];
if (tag == null) {
if (typeof Object.defineProperty != "undefined") {
tag = ++handlers.ctorGuid;
Object.defineProperty(ctor, handlers.ctorGuidProperty, {
value: tag,
enumerable: false
});
} else {
ctor[handlers.ctorGuidProperty] = tag = ++handlers.ctorGuid;
}
}
return tag;
}
};
handlers.constructor = function (x) {
if (x == null) {
return null;
} else {
return x.constructor;
}
};
handlers.padZeros = function (n, m) {
var s = n.toString();
for (var i = s.length; i < m; i++) {
s = "0" + s;
}
return s;
};
handlers.stringableKeys = function (m) {
var stringable = false,
ks = util.objectKeys(m);
for (var i = 0; i < ks.length; i++) {
}
return true;
};
/**
* @constructor
*/
handlers.NilHandler = function Transit$NilHandler() {
};
handlers.NilHandler.prototype.tag = function (v) {
return "_";
};
handlers.NilHandler.prototype.rep = function (v) {
return null;
};
handlers.NilHandler.prototype.stringRep = function (v) {
return "null";
};
/**
* @constructor
*/
handlers.StringHandler = function Transit$StringHandler() {
};
handlers.StringHandler.prototype.tag = function (v) {
return "s";
};
handlers.StringHandler.prototype.rep = function (v) {
return v;
};
handlers.StringHandler.prototype.stringRep = function (v) {
return v;
};
/**
* @constructor
*/
handlers.NumberHandler = function Transit$NumberHandler() {
};
handlers.NumberHandler.prototype.tag = function (v) {
return "i";
};
handlers.NumberHandler.prototype.rep = function (v) {
return v;
};
handlers.NumberHandler.prototype.stringRep = function (v) {
return v.toString();
};
/**
* @constructor
*/
handlers.IntegerHandler = function Transit$IntegerHandler() {
};
handlers.IntegerHandler.prototype.tag = function (v) {
return "i";
};
handlers.IntegerHandler.prototype.rep = function (v) {
return v.toString();
};
handlers.IntegerHandler.prototype.stringRep = function (v) {
return v.toString();
};
/**
* @constructor
*/
handlers.BooleanHandler = function Transit$BooleanHandler() {
};
handlers.BooleanHandler.prototype.tag = function (v) {
return "?";
};
handlers.BooleanHandler.prototype.rep = function (v) {
return v;
};
handlers.BooleanHandler.prototype.stringRep = function (v) {
return v.toString();
};
/**
* @constructor
*/
handlers.ArrayHandler = function Transit$ArrayHandler() {
};
handlers.ArrayHandler.prototype.tag = function (v) {
return "array";
};
handlers.ArrayHandler.prototype.rep = function (v) {
return v;
};
handlers.ArrayHandler.prototype.stringRep = function (v) {
return null;
};
/**
* @constructor
*/
handlers.MapHandler = function Transit$MapHandler() {
};
handlers.MapHandler.prototype.tag = function (v) {
return "map";
};
handlers.MapHandler.prototype.rep = function (v) {
return v;
};
handlers.MapHandler.prototype.stringRep = function (v) {
return null;
};
/**
* @constructor
*/
handlers.VerboseDateHandler = function Transit$VerboseDateHandler() {
};
handlers.VerboseDateHandler.prototype.tag = function (v) {
return "t";
};
handlers.VerboseDateHandler.prototype.rep = function (v) {
return v.getUTCFullYear() + "-" + handlers.padZeros(v.getUTCMonth() + 1, 2) + "-" +
handlers.padZeros(v.getUTCDate(), 2) + "T" + handlers.padZeros(v.getUTCHours(), 2) + ":" +
handlers.padZeros(v.getUTCMinutes(), 2) + ":" + handlers.padZeros(v.getUTCSeconds(), 2) + "." +
handlers.padZeros(v.getUTCMilliseconds(), 3) + "Z";
};
handlers.VerboseDateHandler.prototype.stringRep = function (v, h) {
return h.rep(v);
};
/**
* @constructor
*/
handlers.DateHandler = function Transit$DateHandler() {
};
handlers.DateHandler.prototype.tag = function (v) {
return "m";
};
handlers.DateHandler.prototype.rep = function (v) {
return v.valueOf();
};
handlers.DateHandler.prototype.stringRep = function (v) {
return v.valueOf().toString();
};
handlers.DateHandler.prototype.getVerboseHandler = function (v) {
return new handlers.VerboseDateHandler();
};
/**
* @constructor
*/
handlers.UUIDHandler = function Transit$UUIDHandler() {
};
handlers.UUIDHandler.prototype.tag = function (v) {
return "u";
};
handlers.UUIDHandler.prototype.rep = function (v) {
return v.toString();
};
handlers.UUIDHandler.prototype.stringRep = function (v) {
return v.toString();
};
/**
* @constructor
*/
handlers.KeywordHandler = function Transit$KeywordHandler() {
};
handlers.KeywordHandler.prototype.tag = function (v) {
return ":";
};
handlers.KeywordHandler.prototype.rep = function (v) {
return v._name;
}; // NOTE: should be fqn
handlers.KeywordHandler.prototype.stringRep = function (v, h) {
return h.rep(v);
};
/**
* @constructor
*/
handlers.SymbolHandler = function Transit$SymbolHandler() {
};
handlers.SymbolHandler.prototype.tag = function (v) {
return "$";
};
handlers.SymbolHandler.prototype.rep = function (v) {
return v._name;
}; // NOTE: should be str
handlers.SymbolHandler.prototype.stringRep = function (v, h) {
return h.rep(v);
};
/**
* @constructor
*/
handlers.TaggedHandler = function Transit$TaggedHandler() {
};
handlers.TaggedHandler.prototype.tag = function (v) {
return v.tag;
};
handlers.TaggedHandler.prototype.rep = function (v) {
return v.rep;
};
handlers.TaggedHandler.prototype.stringRep = function (v, h) {
return null;
};
/**
* @constructor
*/
handlers.TransitSetHandler = function Transit$TransitSetHandler() {
};
handlers.TransitSetHandler.prototype.tag = function (v) {
return "set";
};
handlers.TransitSetHandler.prototype.rep = function (v) {
var arr = [];
v.forEach(function (key, set) {
arr.push(key);
});
return types.taggedValue("array", arr);
};
handlers.TransitSetHandler.prototype.stringRep = function (v, h) {
return null;
};
/**
* @constructor
*/
handlers.TransitArrayMapHandler = function Transit$ArrayMapHandler() {
};
handlers.TransitArrayMapHandler.prototype.tag = function (v) {
return "map";
};
handlers.TransitArrayMapHandler.prototype.rep = function (v) {
return v;
};
handlers.TransitArrayMapHandler.prototype.stringRep = function (v, h) {
return null;
};
/**
* @constructor
*/
handlers.TransitMapHandler = function Transit$MapHandler() {
};
handlers.TransitMapHandler.prototype.tag = function (v) {
return "map";
};
handlers.TransitMapHandler.prototype.rep = function (v) {
return v;
};
handlers.TransitMapHandler.prototype.stringRep = function (v, h) {
return null;
};
/**
* @constructor
*/
handlers.BufferHandler = function Transit$BufferHandler() {
};
handlers.BufferHandler.prototype.tag = function (v) {
return "b";
};
handlers.BufferHandler.prototype.rep = function (v) {
return v.toString("base64");
};
handlers.BufferHandler.prototype.stringRep = function (v, h) {
return null;
};
/**
* @constructor
*/
handlers.Uint8ArrayHandler = function Transit$Uint8ArrayHandler() {
};
handlers.Uint8ArrayHandler.prototype.tag = function (v) {
return "b";
};
handlers.Uint8ArrayHandler.prototype.rep = function (v) {
return util.Uint8ToBase64(v);
};
handlers.Uint8ArrayHandler.prototype.stringRep = function (v, h) {
return null;
};
handlers.defaultHandlers = function (hs) {
hs.set(null, new handlers.NilHandler());
hs.set(String, new handlers.StringHandler());
hs.set(Number, new handlers.NumberHandler());
hs.set(Long, new handlers.IntegerHandler());
hs.set(Boolean, new handlers.BooleanHandler());
hs.set(Array, new handlers.ArrayHandler());
hs.set(Object, new handlers.MapHandler());
hs.set(Date, new handlers.DateHandler());
hs.set(types.UUID, new handlers.UUIDHandler());
hs.set(types.Keyword, new handlers.KeywordHandler());
hs.set(types.Symbol, new handlers.SymbolHandler());
hs.set(types.TaggedValue, new handlers.TaggedHandler());
hs.set(types.TransitSet, new handlers.TransitSetHandler());
hs.set(types.TransitArrayMap, new handlers.TransitArrayMapHandler());
hs.set(types.TransitMap, new handlers.TransitMapHandler());
if (typeof goog.global.Buffer != "undefined") {
hs.set(goog.global.Buffer, new handlers.BufferHandler());
}
if (typeof Uint8Array != "undefined") {
hs.set(Uint8Array, new handlers.Uint8ArrayHandler());
}
return hs;
};
/**
* @constructor
*/
handlers.Handlers = function Transit$Handlers() {
this.handlers = {};
handlers.defaultHandlers(this);
};
handlers.Handlers.prototype.get = function (ctor) {
var h = null;
if (typeof ctor === "string") {
h = this.handlers[ctor];
} else {
h = this.handlers[handlers.typeTag(ctor)];
}
if (h != null) {
return h;
} else {
return this.handlers["default"];
}
};
handlers.Handlers.prototype["get"] = handlers.Handlers.prototype.get;
handlers.validTag = function (tag) {
switch (tag) {
case "null":
case "string":
case "boolean":
case "number":
case "array":
case "map":
return false;
break;
}
return true;
};
handlers.Handlers.prototype.set = function (ctor, handler) {
if (typeof ctor === "string" && handlers.validTag(ctor)) {
this.handlers[ctor] = handler;
} else {
this.handlers[handlers.typeTag(ctor)] = handler;
}
};
});
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