blob: 9418ca37023c48c74cf8294efc2e8b4c701b7264 [file] [log] [blame]
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
/*jshint evil:true*/
/**
* The Thrift namespace houses the Apache Thrift JavaScript library
* elements providing JavaScript bindings for the Apache Thrift RPC
* system. End users will typically only directly make use of the
* Transport (TXHRTransport/TWebSocketTransport) and Protocol
* (TJSONPRotocol/TBinaryProtocol) constructors.
*
* Object methods beginning with a __ (e.g. __onOpen()) are internal
* and should not be called outside of the object's own methods.
*
* This library creates one global object: Thrift
* Code in this library must never create additional global identifiers,
* all features must be scoped within the Thrift namespace.
* @namespace
* @example
* var transport = new Thrift.Transport('http://localhost:8585');
* var protocol = new Thrift.Protocol(transport);
* var client = new MyThriftSvcClient(protocol);
* var result = client.MyMethod();
*/
var Thrift = {
/**
* Thrift JavaScript library version.
* @readonly
* @const {string} Version
* @memberof Thrift
*/
Version: '0.12.0',
/**
* Thrift IDL type string to Id mapping.
* @readonly
* @property {number} STOP - End of a set of fields.
* @property {number} VOID - No value (only legal for return types).
* @property {number} BOOL - True/False integer.
* @property {number} BYTE - Signed 8 bit integer.
* @property {number} I08 - Signed 8 bit integer.
* @property {number} DOUBLE - 64 bit IEEE 854 floating point.
* @property {number} I16 - Signed 16 bit integer.
* @property {number} I32 - Signed 32 bit integer.
* @property {number} I64 - Signed 64 bit integer.
* @property {number} STRING - Array of bytes representing a string of characters.
* @property {number} UTF7 - Array of bytes representing a string of UTF7 encoded characters.
* @property {number} STRUCT - A multifield type.
* @property {number} MAP - A collection type (map/associative-array/dictionary).
* @property {number} SET - A collection type (unordered and without repeated values).
* @property {number} LIST - A collection type (unordered).
* @property {number} UTF8 - Array of bytes representing a string of UTF8 encoded characters.
* @property {number} UTF16 - Array of bytes representing a string of UTF16 encoded characters.
*/
Type: {
STOP: 0,
VOID: 1,
BOOL: 2,
BYTE: 3,
I08: 3,
DOUBLE: 4,
I16: 6,
I32: 8,
I64: 10,
STRING: 11,
UTF7: 11,
STRUCT: 12,
MAP: 13,
SET: 14,
LIST: 15,
UTF8: 16,
UTF16: 17
},
/**
* Thrift RPC message type string to Id mapping.
* @readonly
* @property {number} CALL - RPC call sent from client to server.
* @property {number} REPLY - RPC call normal response from server to client.
* @property {number} EXCEPTION - RPC call exception response from server to client.
* @property {number} ONEWAY - Oneway RPC call from client to server with no response.
*/
MessageType: {
CALL: 1,
REPLY: 2,
EXCEPTION: 3,
ONEWAY: 4
},
/**
* Utility function returning the count of an object's own properties.
* @param {object} obj - Object to test.
* @returns {number} number of object's own properties
*/
objectLength: function(obj) {
var length = 0;
for (var k in obj) {
if (obj.hasOwnProperty(k)) {
length++;
}
}
return length;
},
/**
* Utility function to establish prototype inheritance.
* @see {@link http://javascript.crockford.com/prototypal.html|Prototypal Inheritance}
* @param {function} constructor - Contstructor function to set as derived.
* @param {function} superConstructor - Contstructor function to set as base.
* @param {string} [name] - Type name to set as name property in derived prototype.
*/
inherits: function(constructor, superConstructor, name) {
function F() {}
F.prototype = superConstructor.prototype;
constructor.prototype = new F();
constructor.prototype.name = name || '';
}
};
/**
* Initializes a Thrift TException instance.
* @constructor
* @augments Error
* @param {string} message - The TException message (distinct from the Error message).
* @classdesc TException is the base class for all Thrift exceptions types.
*/
Thrift.TException = function(message) {
this.message = message;
};
Thrift.inherits(Thrift.TException, Error, 'TException');
/**
* Returns the message set on the exception.
* @readonly
* @returns {string} exception message
*/
Thrift.TException.prototype.getMessage = function() {
return this.message;
};
/**
* Thrift Application Exception type string to Id mapping.
* @readonly
* @property {number} UNKNOWN - Unknown/undefined.
* @property {number} UNKNOWN_METHOD - Client attempted to call a method unknown to the server.
* @property {number} INVALID_MESSAGE_TYPE - Client passed an unknown/unsupported MessageType.
* @property {number} WRONG_METHOD_NAME - Unused.
* @property {number} BAD_SEQUENCE_ID - Unused in Thrift RPC, used to flag proprietary sequence number errors.
* @property {number} MISSING_RESULT - Raised by a server processor if a handler fails to supply the required return result.
* @property {number} INTERNAL_ERROR - Something bad happened.
* @property {number} PROTOCOL_ERROR - The protocol layer failed to serialize or deserialize data.
* @property {number} INVALID_TRANSFORM - Unused.
* @property {number} INVALID_PROTOCOL - The protocol (or version) is not supported.
* @property {number} UNSUPPORTED_CLIENT_TYPE - Unused.
*/
Thrift.TApplicationExceptionType = {
UNKNOWN: 0,
UNKNOWN_METHOD: 1,
INVALID_MESSAGE_TYPE: 2,
WRONG_METHOD_NAME: 3,
BAD_SEQUENCE_ID: 4,
MISSING_RESULT: 5,
INTERNAL_ERROR: 6,
PROTOCOL_ERROR: 7,
INVALID_TRANSFORM: 8,
INVALID_PROTOCOL: 9,
UNSUPPORTED_CLIENT_TYPE: 10
};
/**
* Initializes a Thrift TApplicationException instance.
* @constructor
* @augments Thrift.TException
* @param {string} message - The TApplicationException message (distinct from the Error message).
* @param {Thrift.TApplicationExceptionType} [code] - The TApplicationExceptionType code.
* @classdesc TApplicationException is the exception class used to propagate exceptions from an RPC server back to a calling client.
*/
Thrift.TApplicationException = function(message, code) {
this.message = message;
this.code = typeof code === 'number' ? code : 0;
};
Thrift.inherits(Thrift.TApplicationException, Thrift.TException, 'TApplicationException');
/**
* Read a TApplicationException from the supplied protocol.
* @param {object} input - The input protocol to read from.
*/
Thrift.TApplicationException.prototype.read = function(input) {
while (1) {
var ret = input.readFieldBegin();
if (ret.ftype == Thrift.Type.STOP) {
break;
}
var fid = ret.fid;
switch (fid) {
case 1:
if (ret.ftype == Thrift.Type.STRING) {
ret = input.readString();
this.message = ret.value;
} else {
ret = input.skip(ret.ftype);
}
break;
case 2:
if (ret.ftype == Thrift.Type.I32) {
ret = input.readI32();
this.code = ret.value;
} else {
ret = input.skip(ret.ftype);
}
break;
default:
ret = input.skip(ret.ftype);
break;
}
input.readFieldEnd();
}
input.readStructEnd();
};
/**
* Wite a TApplicationException to the supplied protocol.
* @param {object} output - The output protocol to write to.
*/
Thrift.TApplicationException.prototype.write = function(output) {
output.writeStructBegin('TApplicationException');
if (this.message) {
output.writeFieldBegin('message', Thrift.Type.STRING, 1);
output.writeString(this.getMessage());
output.writeFieldEnd();
}
if (this.code) {
output.writeFieldBegin('type', Thrift.Type.I32, 2);
output.writeI32(this.code);
output.writeFieldEnd();
}
output.writeFieldStop();
output.writeStructEnd();
};
/**
* Returns the application exception code set on the exception.
* @readonly
* @returns {Thrift.TApplicationExceptionType} exception code
*/
Thrift.TApplicationException.prototype.getCode = function() {
return this.code;
};
Thrift.TProtocolExceptionType = {
UNKNOWN: 0,
INVALID_DATA: 1,
NEGATIVE_SIZE: 2,
SIZE_LIMIT: 3,
BAD_VERSION: 4,
NOT_IMPLEMENTED: 5,
DEPTH_LIMIT: 6
};
Thrift.TProtocolException = function TProtocolException(type, message) {
Error.call(this);
Error.captureStackTrace(this, this.constructor);
this.name = this.constructor.name;
this.type = type;
this.message = message;
};
Thrift.inherits(Thrift.TProtocolException, Thrift.TException, 'TProtocolException');
/**
* Constructor Function for the XHR transport.
* If you do not specify a url then you must handle XHR operations on
* your own. This type can also be constructed using the Transport alias
* for backward compatibility.
* @constructor
* @param {string} [url] - The URL to connect to.
* @classdesc The Apache Thrift Transport layer performs byte level I/O
* between RPC clients and servers. The JavaScript TXHRTransport object
* uses Http[s]/XHR. Target servers must implement the http[s] transport
* (see: node.js example server_http.js).
* @example
* var transport = new Thrift.TXHRTransport("http://localhost:8585");
*/
Thrift.Transport = Thrift.TXHRTransport = function(url, options) {
this.url = url;
this.wpos = 0;
this.rpos = 0;
this.useCORS = (options && options.useCORS);
this.customHeaders = options ? (options.customHeaders ? options.customHeaders : {}): {};
this.send_buf = '';
this.recv_buf = '';
};
Thrift.TXHRTransport.prototype = {
/**
* Gets the browser specific XmlHttpRequest Object.
* @returns {object} the browser XHR interface object
*/
getXmlHttpRequestObject: function() {
try { return new XMLHttpRequest(); } catch (e1) { }
try { return new ActiveXObject('Msxml2.XMLHTTP'); } catch (e2) { }
try { return new ActiveXObject('Microsoft.XMLHTTP'); } catch (e3) { }
throw "Your browser doesn't support XHR.";
},
/**
* Sends the current XRH request if the transport was created with a URL
* and the async parameter is false. If the transport was not created with
* a URL, or the async parameter is True and no callback is provided, or
* the URL is an empty string, the current send buffer is returned.
* @param {object} async - If true the current send buffer is returned.
* @param {object} callback - Optional async completion callback
* @returns {undefined|string} Nothing or the current send buffer.
* @throws {string} If XHR fails.
*/
flush: function(async, callback) {
var self = this;
if ((async && !callback) || this.url === undefined || this.url === '') {
return this.send_buf;
}
var xreq = this.getXmlHttpRequestObject();
if (xreq.overrideMimeType) {
xreq.overrideMimeType('application/vnd.apache.thrift.json; charset=utf-8');
}
if (callback) {
//Ignore XHR callbacks until the data arrives, then call the
// client's callback
xreq.onreadystatechange =
(function() {
var clientCallback = callback;
return function() {
if (this.readyState == 4 && this.status == 200) {
self.setRecvBuffer(this.responseText);
clientCallback();
}
};
}());
// detect net::ERR_CONNECTION_REFUSED and call the callback.
xreq.onerror =
(function() {
var clientCallback = callback;
return function() {
clientCallback();
};
}());
}
xreq.open('POST', this.url, !!async);
// add custom headers
Object.keys(self.customHeaders).forEach(function(prop) {
xreq.setRequestHeader(prop, self.customHeaders[prop]);
});
if (xreq.setRequestHeader) {
xreq.setRequestHeader('Accept', 'application/vnd.apache.thrift.json; charset=utf-8');
xreq.setRequestHeader('Content-Type', 'application/vnd.apache.thrift.json; charset=utf-8');
}
xreq.send(this.send_buf);
if (async && callback) {
return;
}
if (xreq.readyState != 4) {
throw 'encountered an unknown ajax ready state: ' + xreq.readyState;
}
if (xreq.status != 200) {
throw 'encountered a unknown request status: ' + xreq.status;
}
this.recv_buf = xreq.responseText;
this.recv_buf_sz = this.recv_buf.length;
this.wpos = this.recv_buf.length;
this.rpos = 0;
},
/**
* Creates a jQuery XHR object to be used for a Thrift server call.
* @param {object} client - The Thrift Service client object generated by the IDL compiler.
* @param {object} postData - The message to send to the server.
* @param {function} args - The original call arguments with the success call back at the end.
* @param {function} recv_method - The Thrift Service Client receive method for the call.
* @returns {object} A new jQuery XHR object.
* @throws {string} If the jQuery version is prior to 1.5 or if jQuery is not found.
*/
jqRequest: function(client, postData, args, recv_method) {
if (typeof jQuery === 'undefined' ||
typeof jQuery.Deferred === 'undefined') {
throw 'Thrift.js requires jQuery 1.5+ to use asynchronous requests';
}
var thriftTransport = this;
var jqXHR = jQuery.ajax({
url: this.url,
data: postData,
type: 'POST',
cache: false,
contentType: 'application/vnd.apache.thrift.json; charset=utf-8',
dataType: 'text thrift',
converters: {
'text thrift' : function(responseData) {
thriftTransport.setRecvBuffer(responseData);
var value = recv_method.call(client);
return value;
}
},
context: client,
success: jQuery.makeArray(args).pop()
});
return jqXHR;
},
/**
* Sets the buffer to provide the protocol when deserializing.
* @param {string} buf - The buffer to supply the protocol.
*/
setRecvBuffer: function(buf) {
this.recv_buf = buf;
this.recv_buf_sz = this.recv_buf.length;
this.wpos = this.recv_buf.length;
this.rpos = 0;
},
/**
* Returns true if the transport is open, XHR always returns true.
* @readonly
* @returns {boolean} Always True.
*/
isOpen: function() {
return true;
},
/**
* Opens the transport connection, with XHR this is a nop.
*/
open: function() {},
/**
* Closes the transport connection, with XHR this is a nop.
*/
close: function() {},
/**
* Returns the specified number of characters from the response
* buffer.
* @param {number} len - The number of characters to return.
* @returns {string} Characters sent by the server.
*/
read: function(len) {
var avail = this.wpos - this.rpos;
if (avail === 0) {
return '';
}
var give = len;
if (avail < len) {
give = avail;
}
var ret = this.read_buf.substr(this.rpos, give);
this.rpos += give;
//clear buf when complete?
return ret;
},
/**
* Returns the entire response buffer.
* @returns {string} Characters sent by the server.
*/
readAll: function() {
return this.recv_buf;
},
/**
* Sets the send buffer to buf.
* @param {string} buf - The buffer to send.
*/
write: function(buf) {
this.send_buf = buf;
},
/**
* Returns the send buffer.
* @readonly
* @returns {string} The send buffer.
*/
getSendBuffer: function() {
return this.send_buf;
}
};
/**
* Constructor Function for the WebSocket transport.
* @constructor
* @param {string} [url] - The URL to connect to.
* @classdesc The Apache Thrift Transport layer performs byte level I/O
* between RPC clients and servers. The JavaScript TWebSocketTransport object
* uses the WebSocket protocol. Target servers must implement WebSocket.
* (see: node.js example server_http.js).
* @example
* var transport = new Thrift.TWebSocketTransport("http://localhost:8585");
*/
Thrift.TWebSocketTransport = function(url) {
this.__reset(url);
};
Thrift.TWebSocketTransport.prototype = {
__reset: function(url) {
this.url = url; //Where to connect
this.socket = null; //The web socket
this.callbacks = []; //Pending callbacks
this.send_pending = []; //Buffers/Callback pairs waiting to be sent
this.send_buf = ''; //Outbound data, immutable until sent
this.recv_buf = ''; //Inbound data
this.rb_wpos = 0; //Network write position in receive buffer
this.rb_rpos = 0; //Client read position in receive buffer
},
/**
* Sends the current WS request and registers callback. The async
* parameter is ignored (WS flush is always async) and the callback
* function parameter is required.
* @param {object} async - Ignored.
* @param {object} callback - The client completion callback.
* @returns {undefined|string} Nothing (undefined)
*/
flush: function(async, callback) {
var self = this;
if (this.isOpen()) {
//Send data and register a callback to invoke the client callback
this.socket.send(this.send_buf);
this.callbacks.push((function() {
var clientCallback = callback;
return function(msg) {
self.setRecvBuffer(msg);
if (clientCallback) {
clientCallback();
}
};
}()));
} else {
//Queue the send to go out __onOpen
this.send_pending.push({
buf: this.send_buf,
cb: callback
});
}
},
__onOpen: function() {
var self = this;
if (this.send_pending.length > 0) {
//If the user made calls before the connection was fully
//open, send them now
this.send_pending.forEach(function(elem) {
self.socket.send(elem.buf);
self.callbacks.push((function() {
var clientCallback = elem.cb;
return function(msg) {
self.setRecvBuffer(msg);
clientCallback();
};
}()));
});
this.send_pending = [];
}
},
__onClose: function(evt) {
this.__reset(this.url);
},
__onMessage: function(evt) {
if (this.callbacks.length) {
this.callbacks.shift()(evt.data);
}
},
__onError: function(evt) {
console.log('Thrift WebSocket Error: ' + evt.toString());
this.socket.close();
},
/**
* Sets the buffer to use when receiving server responses.
* @param {string} buf - The buffer to receive server responses.
*/
setRecvBuffer: function(buf) {
this.recv_buf = buf;
this.recv_buf_sz = this.recv_buf.length;
this.wpos = this.recv_buf.length;
this.rpos = 0;
},
/**
* Returns true if the transport is open
* @readonly
* @returns {boolean}
*/
isOpen: function() {
return this.socket && this.socket.readyState == this.socket.OPEN;
},
/**
* Opens the transport connection
*/
open: function() {
//If OPEN/CONNECTING/CLOSING ignore additional opens
if (this.socket && this.socket.readyState != this.socket.CLOSED) {
return;
}
//If there is no socket or the socket is closed:
this.socket = new WebSocket(this.url);
this.socket.onopen = this.__onOpen.bind(this);
this.socket.onmessage = this.__onMessage.bind(this);
this.socket.onerror = this.__onError.bind(this);
this.socket.onclose = this.__onClose.bind(this);
},
/**
* Closes the transport connection
*/
close: function() {
this.socket.close();
},
/**
* Returns the specified number of characters from the response
* buffer.
* @param {number} len - The number of characters to return.
* @returns {string} Characters sent by the server.
*/
read: function(len) {
var avail = this.wpos - this.rpos;
if (avail === 0) {
return '';
}
var give = len;
if (avail < len) {
give = avail;
}
var ret = this.read_buf.substr(this.rpos, give);
this.rpos += give;
//clear buf when complete?
return ret;
},
/**
* Returns the entire response buffer.
* @returns {string} Characters sent by the server.
*/
readAll: function() {
return this.recv_buf;
},
/**
* Sets the send buffer to buf.
* @param {string} buf - The buffer to send.
*/
write: function(buf) {
this.send_buf = buf;
},
/**
* Returns the send buffer.
* @readonly
* @returns {string} The send buffer.
*/
getSendBuffer: function() {
return this.send_buf;
}
};
/**
* Initializes a Thrift JSON protocol instance.
* @constructor
* @param {Thrift.Transport} transport - The transport to serialize to/from.
* @classdesc Apache Thrift Protocols perform serialization which enables cross
* language RPC. The Protocol type is the JavaScript browser implementation
* of the Apache Thrift TJSONProtocol.
* @example
* var protocol = new Thrift.Protocol(transport);
*/
Thrift.TJSONProtocol = Thrift.Protocol = function(transport) {
this.tstack = [];
this.tpos = [];
this.transport = transport;
};
/**
* Thrift IDL type Id to string mapping.
* @readonly
* @see {@link Thrift.Type}
*/
Thrift.Protocol.Type = {};
Thrift.Protocol.Type[Thrift.Type.BOOL] = '"tf"';
Thrift.Protocol.Type[Thrift.Type.BYTE] = '"i8"';
Thrift.Protocol.Type[Thrift.Type.I16] = '"i16"';
Thrift.Protocol.Type[Thrift.Type.I32] = '"i32"';
Thrift.Protocol.Type[Thrift.Type.I64] = '"i64"';
Thrift.Protocol.Type[Thrift.Type.DOUBLE] = '"dbl"';
Thrift.Protocol.Type[Thrift.Type.STRUCT] = '"rec"';
Thrift.Protocol.Type[Thrift.Type.STRING] = '"str"';
Thrift.Protocol.Type[Thrift.Type.MAP] = '"map"';
Thrift.Protocol.Type[Thrift.Type.LIST] = '"lst"';
Thrift.Protocol.Type[Thrift.Type.SET] = '"set"';
/**
* Thrift IDL type string to Id mapping.
* @readonly
* @see {@link Thrift.Type}
*/
Thrift.Protocol.RType = {};
Thrift.Protocol.RType.tf = Thrift.Type.BOOL;
Thrift.Protocol.RType.i8 = Thrift.Type.BYTE;
Thrift.Protocol.RType.i16 = Thrift.Type.I16;
Thrift.Protocol.RType.i32 = Thrift.Type.I32;
Thrift.Protocol.RType.i64 = Thrift.Type.I64;
Thrift.Protocol.RType.dbl = Thrift.Type.DOUBLE;
Thrift.Protocol.RType.rec = Thrift.Type.STRUCT;
Thrift.Protocol.RType.str = Thrift.Type.STRING;
Thrift.Protocol.RType.map = Thrift.Type.MAP;
Thrift.Protocol.RType.lst = Thrift.Type.LIST;
Thrift.Protocol.RType.set = Thrift.Type.SET;
/**
* The TJSONProtocol version number.
* @readonly
* @const {number} Version
* @memberof Thrift.Protocol
*/
Thrift.Protocol.Version = 1;
Thrift.Protocol.prototype = {
/**
* Returns the underlying transport.
* @readonly
* @returns {Thrift.Transport} The underlying transport.
*/
getTransport: function() {
return this.transport;
},
/**
* Serializes the beginning of a Thrift RPC message.
* @param {string} name - The service method to call.
* @param {Thrift.MessageType} messageType - The type of method call.
* @param {number} seqid - The sequence number of this call (always 0 in Apache Thrift).
*/
writeMessageBegin: function(name, messageType, seqid) {
this.tstack = [];
this.tpos = [];
this.tstack.push([Thrift.Protocol.Version, '"' +
name + '"', messageType, seqid]);
},
/**
* Serializes the end of a Thrift RPC message.
*/
writeMessageEnd: function() {
var obj = this.tstack.pop();
this.wobj = this.tstack.pop();
this.wobj.push(obj);
this.wbuf = '[' + this.wobj.join(',') + ']';
this.transport.write(this.wbuf);
},
/**
* Serializes the beginning of a struct.
* @param {string} name - The name of the struct.
*/
writeStructBegin: function(name) {
this.tpos.push(this.tstack.length);
this.tstack.push({});
},
/**
* Serializes the end of a struct.
*/
writeStructEnd: function() {
var p = this.tpos.pop();
var struct = this.tstack[p];
var str = '{';
var first = true;
for (var key in struct) {
if (first) {
first = false;
} else {
str += ',';
}
str += key + ':' + struct[key];
}
str += '}';
this.tstack[p] = str;
},
/**
* Serializes the beginning of a struct field.
* @param {string} name - The name of the field.
* @param {Thrift.Protocol.Type} fieldType - The data type of the field.
* @param {number} fieldId - The field's unique identifier.
*/
writeFieldBegin: function(name, fieldType, fieldId) {
this.tpos.push(this.tstack.length);
this.tstack.push({ 'fieldId': '"' +
fieldId + '"', 'fieldType': Thrift.Protocol.Type[fieldType]
});
},
/**
* Serializes the end of a field.
*/
writeFieldEnd: function() {
var value = this.tstack.pop();
var fieldInfo = this.tstack.pop();
this.tstack[this.tstack.length - 1][fieldInfo.fieldId] = '{' +
fieldInfo.fieldType + ':' + value + '}';
this.tpos.pop();
},
/**
* Serializes the end of the set of fields for a struct.
*/
writeFieldStop: function() {
//na
},
/**
* Serializes the beginning of a map collection.
* @param {Thrift.Type} keyType - The data type of the key.
* @param {Thrift.Type} valType - The data type of the value.
* @param {number} [size] - The number of elements in the map (ignored).
*/
writeMapBegin: function(keyType, valType, size) {
this.tpos.push(this.tstack.length);
this.tstack.push([Thrift.Protocol.Type[keyType],
Thrift.Protocol.Type[valType], 0]);
},
/**
* Serializes the end of a map.
*/
writeMapEnd: function() {
var p = this.tpos.pop();
if (p == this.tstack.length) {
return;
}
if ((this.tstack.length - p - 1) % 2 !== 0) {
this.tstack.push('');
}
var size = (this.tstack.length - p - 1) / 2;
this.tstack[p][this.tstack[p].length - 1] = size;
var map = '}';
var first = true;
while (this.tstack.length > p + 1) {
var v = this.tstack.pop();
var k = this.tstack.pop();
if (first) {
first = false;
} else {
map = ',' + map;
}
if (! isNaN(k)) { k = '"' + k + '"'; } //json "keys" need to be strings
map = k + ':' + v + map;
}
map = '{' + map;
this.tstack[p].push(map);
this.tstack[p] = '[' + this.tstack[p].join(',') + ']';
},
/**
* Serializes the beginning of a list collection.
* @param {Thrift.Type} elemType - The data type of the elements.
* @param {number} size - The number of elements in the list.
*/
writeListBegin: function(elemType, size) {
this.tpos.push(this.tstack.length);
this.tstack.push([Thrift.Protocol.Type[elemType], size]);
},
/**
* Serializes the end of a list.
*/
writeListEnd: function() {
var p = this.tpos.pop();
while (this.tstack.length > p + 1) {
var tmpVal = this.tstack[p + 1];
this.tstack.splice(p + 1, 1);
this.tstack[p].push(tmpVal);
}
this.tstack[p] = '[' + this.tstack[p].join(',') + ']';
},
/**
* Serializes the beginning of a set collection.
* @param {Thrift.Type} elemType - The data type of the elements.
* @param {number} size - The number of elements in the list.
*/
writeSetBegin: function(elemType, size) {
this.tpos.push(this.tstack.length);
this.tstack.push([Thrift.Protocol.Type[elemType], size]);
},
/**
* Serializes the end of a set.
*/
writeSetEnd: function() {
var p = this.tpos.pop();
while (this.tstack.length > p + 1) {
var tmpVal = this.tstack[p + 1];
this.tstack.splice(p + 1, 1);
this.tstack[p].push(tmpVal);
}
this.tstack[p] = '[' + this.tstack[p].join(',') + ']';
},
/** Serializes a boolean */
writeBool: function(value) {
this.tstack.push(value ? 1 : 0);
},
/** Serializes a number */
writeByte: function(i8) {
this.tstack.push(i8);
},
/** Serializes a number */
writeI16: function(i16) {
this.tstack.push(i16);
},
/** Serializes a number */
writeI32: function(i32) {
this.tstack.push(i32);
},
/** Serializes a number */
writeI64: function(i64) {
this.tstack.push(i64);
},
/** Serializes a number */
writeDouble: function(dbl) {
this.tstack.push(dbl);
},
/** Serializes a string */
writeString: function(str) {
// We do not encode uri components for wire transfer:
if (str === null) {
this.tstack.push(null);
} else {
// concat may be slower than building a byte buffer
var escapedString = '';
for (var i = 0; i < str.length; i++) {
var ch = str.charAt(i); // a single double quote: "
if (ch === '\"') {
escapedString += '\\\"'; // write out as: \"
} else if (ch === '\\') { // a single backslash
escapedString += '\\\\'; // write out as double backslash
} else if (ch === '\b') { // a single backspace: invisible
escapedString += '\\b'; // write out as: \b"
} else if (ch === '\f') { // a single formfeed: invisible
escapedString += '\\f'; // write out as: \f"
} else if (ch === '\n') { // a single newline: invisible
escapedString += '\\n'; // write out as: \n"
} else if (ch === '\r') { // a single return: invisible
escapedString += '\\r'; // write out as: \r"
} else if (ch === '\t') { // a single tab: invisible
escapedString += '\\t'; // write out as: \t"
} else {
escapedString += ch; // Else it need not be escaped
}
}
this.tstack.push('"' + escapedString + '"');
}
},
/** Serializes a string */
writeBinary: function(binary) {
var str = '';
if (typeof binary == 'string') {
str = binary;
} else if (binary instanceof Uint8Array) {
var arr = binary;
for (var i = 0; i < arr.length; ++i) {
str += String.fromCharCode(arr[i]);
}
} else {
throw new TypeError('writeBinary only accepts String or Uint8Array.');
}
this.tstack.push('"' + btoa(str) + '"');
},
/**
@class
@name AnonReadMessageBeginReturn
@property {string} fname - The name of the service method.
@property {Thrift.MessageType} mtype - The type of message call.
@property {number} rseqid - The sequence number of the message (0 in Thrift RPC).
*/
/**
* Deserializes the beginning of a message.
* @returns {AnonReadMessageBeginReturn}
*/
readMessageBegin: function() {
this.rstack = [];
this.rpos = [];
if (typeof JSON !== 'undefined' && typeof JSON.parse === 'function') {
this.robj = JSON.parse(this.transport.readAll());
} else if (typeof jQuery !== 'undefined') {
this.robj = jQuery.parseJSON(this.transport.readAll());
} else {
this.robj = eval(this.transport.readAll());
}
var r = {};
var version = this.robj.shift();
if (version != Thrift.Protocol.Version) {
throw 'Wrong thrift protocol version: ' + version;
}
r.fname = this.robj.shift();
r.mtype = this.robj.shift();
r.rseqid = this.robj.shift();
//get to the main obj
this.rstack.push(this.robj.shift());
return r;
},
/** Deserializes the end of a message. */
readMessageEnd: function() {
},
/**
* Deserializes the beginning of a struct.
* @param {string} [name] - The name of the struct (ignored)
* @returns {object} - An object with an empty string fname property
*/
readStructBegin: function(name) {
var r = {};
r.fname = '';
//incase this is an array of structs
if (this.rstack[this.rstack.length - 1] instanceof Array) {
this.rstack.push(this.rstack[this.rstack.length - 1].shift());
}
return r;
},
/** Deserializes the end of a struct. */
readStructEnd: function() {
if (this.rstack[this.rstack.length - 2] instanceof Array) {
this.rstack.pop();
}
},
/**
@class
@name AnonReadFieldBeginReturn
@property {string} fname - The name of the field (always '').
@property {Thrift.Type} ftype - The data type of the field.
@property {number} fid - The unique identifier of the field.
*/
/**
* Deserializes the beginning of a field.
* @returns {AnonReadFieldBeginReturn}
*/
readFieldBegin: function() {
var r = {};
var fid = -1;
var ftype = Thrift.Type.STOP;
//get a fieldId
for (var f in (this.rstack[this.rstack.length - 1])) {
if (f === null) {
continue;
}
fid = parseInt(f, 10);
this.rpos.push(this.rstack.length);
var field = this.rstack[this.rstack.length - 1][fid];
//remove so we don't see it again
delete this.rstack[this.rstack.length - 1][fid];
this.rstack.push(field);
break;
}
if (fid != -1) {
//should only be 1 of these but this is the only
//way to match a key
for (var i in (this.rstack[this.rstack.length - 1])) {
if (Thrift.Protocol.RType[i] === null) {
continue;
}
ftype = Thrift.Protocol.RType[i];
this.rstack[this.rstack.length - 1] =
this.rstack[this.rstack.length - 1][i];
}
}
r.fname = '';
r.ftype = ftype;
r.fid = fid;
return r;
},
/** Deserializes the end of a field. */
readFieldEnd: function() {
var pos = this.rpos.pop();
//get back to the right place in the stack
while (this.rstack.length > pos) {
this.rstack.pop();
}
},
/**
@class
@name AnonReadMapBeginReturn
@property {Thrift.Type} ktype - The data type of the key.
@property {Thrift.Type} vtype - The data type of the value.
@property {number} size - The number of elements in the map.
*/
/**
* Deserializes the beginning of a map.
* @returns {AnonReadMapBeginReturn}
*/
readMapBegin: function() {
var map = this.rstack.pop();
var first = map.shift();
if (first instanceof Array) {
this.rstack.push(map);
map = first;
first = map.shift();
}
var r = {};
r.ktype = Thrift.Protocol.RType[first];
r.vtype = Thrift.Protocol.RType[map.shift()];
r.size = map.shift();
this.rpos.push(this.rstack.length);
this.rstack.push(map.shift());
return r;
},
/** Deserializes the end of a map. */
readMapEnd: function() {
this.readFieldEnd();
},
/**
@class
@name AnonReadColBeginReturn
@property {Thrift.Type} etype - The data type of the element.
@property {number} size - The number of elements in the collection.
*/
/**
* Deserializes the beginning of a list.
* @returns {AnonReadColBeginReturn}
*/
readListBegin: function() {
var list = this.rstack[this.rstack.length - 1];
var r = {};
r.etype = Thrift.Protocol.RType[list.shift()];
r.size = list.shift();
this.rpos.push(this.rstack.length);
this.rstack.push(list.shift());
return r;
},
/** Deserializes the end of a list. */
readListEnd: function() {
var pos = this.rpos.pop() - 2;
var st = this.rstack;
st.pop();
if (st instanceof Array && st.length > pos && st[pos].length > 0) {
st.push(st[pos].shift());
}
},
/**
* Deserializes the beginning of a set.
* @returns {AnonReadColBeginReturn}
*/
readSetBegin: function(elemType, size) {
return this.readListBegin(elemType, size);
},
/** Deserializes the end of a set. */
readSetEnd: function() {
return this.readListEnd();
},
/** Returns an object with a value property set to
* False unless the next number in the protocol buffer
* is 1, in which case the value property is True */
readBool: function() {
var r = this.readI32();
if (r !== null && r.value == '1') {
r.value = true;
} else {
r.value = false;
}
return r;
},
/** Returns the an object with a value property set to the
next value found in the protocol buffer */
readByte: function() {
return this.readI32();
},
/** Returns the an object with a value property set to the
next value found in the protocol buffer */
readI16: function() {
return this.readI32();
},
/** Returns the an object with a value property set to the
next value found in the protocol buffer */
readI32: function(f) {
if (f === undefined) {
f = this.rstack[this.rstack.length - 1];
}
var r = {};
if (f instanceof Array) {
if (f.length === 0) {
r.value = undefined;
} else {
if (!f.isReversed) {
f.reverse();
f.isReversed = true;
}
r.value = f.pop();
}
} else if (f instanceof Object) {
for (var i in f) {
if (i === null) {
continue;
}
this.rstack.push(f[i]);
delete f[i];
r.value = i;
break;
}
} else {
r.value = f;
this.rstack.pop();
}
return r;
},
/** Returns the an object with a value property set to the
next value found in the protocol buffer */
readI64: function() {
return this.readI32();
},
/** Returns the an object with a value property set to the
next value found in the protocol buffer */
readDouble: function() {
return this.readI32();
},
/** Returns the an object with a value property set to the
next value found in the protocol buffer */
readString: function() {
var r = this.readI32();
return r;
},
/** Returns the an object with a value property set to the
next value found in the protocol buffer */
readBinary: function() {
var r = this.readI32();
r.value = atob(r.value);
return r;
},
/**
* Method to arbitrarily skip over data */
skip: function(type) {
var ret, i;
switch (type) {
case Thrift.Type.STOP:
return null;
case Thrift.Type.BOOL:
return this.readBool();
case Thrift.Type.BYTE:
return this.readByte();
case Thrift.Type.I16:
return this.readI16();
case Thrift.Type.I32:
return this.readI32();
case Thrift.Type.I64:
return this.readI64();
case Thrift.Type.DOUBLE:
return this.readDouble();
case Thrift.Type.STRING:
return this.readString();
case Thrift.Type.STRUCT:
this.readStructBegin();
while (true) {
ret = this.readFieldBegin();
if (ret.ftype == Thrift.Type.STOP) {
break;
}
this.skip(ret.ftype);
this.readFieldEnd();
}
this.readStructEnd();
return null;
case Thrift.Type.MAP:
ret = this.readMapBegin();
for (i = 0; i < ret.size; i++) {
if (i > 0) {
if (this.rstack.length > this.rpos[this.rpos.length - 1] + 1) {
this.rstack.pop();
}
}
this.skip(ret.ktype);
this.skip(ret.vtype);
}
this.readMapEnd();
return null;
case Thrift.Type.SET:
ret = this.readSetBegin();
for (i = 0; i < ret.size; i++) {
this.skip(ret.etype);
}
this.readSetEnd();
return null;
case Thrift.Type.LIST:
ret = this.readListBegin();
for (i = 0; i < ret.size; i++) {
this.skip(ret.etype);
}
this.readListEnd();
return null;
default:
throw new Thrift.TProtocolException(Thrift.TProtocolExceptionType.INVALID_DATA);
}
}
};
/**
* Initializes a MutilplexProtocol Implementation as a Wrapper for Thrift.Protocol
* @constructor
*/
Thrift.MultiplexProtocol = function(srvName, trans, strictRead, strictWrite) {
Thrift.Protocol.call(this, trans, strictRead, strictWrite);
this.serviceName = srvName;
};
Thrift.inherits(Thrift.MultiplexProtocol, Thrift.Protocol, 'multiplexProtocol');
/** Override writeMessageBegin method of prototype*/
Thrift.MultiplexProtocol.prototype.writeMessageBegin = function(name, type, seqid) {
if (type === Thrift.MessageType.CALL || type === Thrift.MessageType.ONEWAY) {
Thrift.Protocol.prototype.writeMessageBegin.call(this, this.serviceName + ':' + name, type, seqid);
} else {
Thrift.Protocol.prototype.writeMessageBegin.call(this, name, type, seqid);
}
};
Thrift.Multiplexer = function() {
this.seqid = 0;
};
/** Instantiates a multiplexed client for a specific service
* @constructor
* @param {String} serviceName - The transport to serialize to/from.
* @param {Thrift.ServiceClient} SCl - The Service Client Class
* @param {Thrift.Transport} transport - Thrift.Transport instance which provides remote host:port
* @example
* var mp = new Thrift.Multiplexer();
* var transport = new Thrift.Transport("http://localhost:9090/foo.thrift");
* var protocol = new Thrift.Protocol(transport);
* var client = mp.createClient('AuthService', AuthServiceClient, transport);
*/
Thrift.Multiplexer.prototype.createClient = function(serviceName, SCl, transport) {
if (SCl.Client) {
SCl = SCl.Client;
}
var self = this;
SCl.prototype.new_seqid = function() {
self.seqid += 1;
return self.seqid;
};
var client = new SCl(new Thrift.MultiplexProtocol(serviceName, transport));
return client;
};
var copyList, copyMap;
copyList = function(lst, types) {
if (!lst) {return lst; }
var type;
if (types.shift === undefined) {
type = types;
}
else {
type = types[0];
}
var Type = type;
var len = lst.length, result = [], i, val;
for (i = 0; i < len; i++) {
val = lst[i];
if (type === null) {
result.push(val);
}
else if (type === copyMap || type === copyList) {
result.push(type(val, types.slice(1)));
}
else {
result.push(new Type(val));
}
}
return result;
};
copyMap = function(obj, types) {
if (!obj) {return obj; }
var type;
if (types.shift === undefined) {
type = types;
}
else {
type = types[0];
}
var Type = type;
var result = {}, val;
for (var prop in obj) {
if (obj.hasOwnProperty(prop)) {
val = obj[prop];
if (type === null) {
result[prop] = val;
}
else if (type === copyMap || type === copyList) {
result[prop] = type(val, types.slice(1));
}
else {
result[prop] = new Type(val);
}
}
}
return result;
};
Thrift.copyMap = copyMap;
Thrift.copyList = copyList;