/*
* Copyright 2014 Red Hat, Inc.
*
* Red Hat 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.
*/
/** @module vertx-js/json_parser */
var utils = require('vertx-js/util/utils');
var Pipe = require('vertx-js/pipe');
var Buffer = require('vertx-js/buffer');
var WriteStream = require('vertx-js/write_stream');
var ReadStream = require('vertx-js/read_stream');
var Future = require('vertx-js/future');
var JsonEvent = require('vertx-js/json_event');
var Promise = require('vertx-js/promise');
var io = Packages.io;
var JsonObject = io.vertx.core.json.JsonObject;
var JsonArray = io.vertx.core.json.JsonArray;
var JJsonParser = Java.type('io.vertx.core.parsetools.JsonParser');
/**
A parser class which allows to incrementally parse json elements and emit json parse events instead of parsing a json
element fully. This parser is convenient for parsing large json structures.
<p/>
The parser also parses concatenated json streams or line delimited json streams.
<p/>
The parser can also parse entire object or array when it is convenient, for instance a very large array
of small objects can be parsed efficiently by handling array <i>start</i>/<i>end</i> and <i>object</i>
events.
<p/>
@class
*/
var JsonParser = function(j_val) {
var j_jsonParser = j_val;
var that = this;
ReadStream.call(this, j_val);
var __super_handle = this.handle;
var __super_pipe = this.pipe;
var __super_pipeTo = this.pipeTo;
var __super_newParser = this.newParser;
var __super_newParser = this.newParser;
var __super_write = this.write;
var __super_end = this.end;
var __super_objectEventMode = this.objectEventMode;
var __super_objectValueMode = this.objectValueMode;
var __super_arrayEventMode = this.arrayEventMode;
var __super_arrayValueMode = this.arrayValueMode;
var __super_pause = this.pause;
var __super_resume = this.resume;
var __super_fetch = this.fetch;
var __super_endHandler = this.endHandler;
var __super_handler = this.handler;
var __super_exceptionHandler = this.exceptionHandler;
/**
Something has happened, so handle it.
@public
@param event {Buffer} the event to handle
*/
this.handle = function(event) {
var __args = arguments;
if (__args.length === 1 && typeof __args[0] === 'object' && __args[0]._jdel) {
j_jsonParser["handle(io.vertx.core.buffer.Buffer)"](event._jdel);
} else if (typeof __super_handle != 'undefined') {
return __super_handle.apply(this, __args);
}
else throw new TypeError('function invoked with invalid arguments');
};
/**
Pause this stream and return a to transfer the elements of this stream to a destination .
<p/>
The stream will be resumed when the pipe will be wired to a <code>WriteStream</code>.
@public
@return {Pipe} a pipe
*/
this.pipe = function() {
var __args = arguments;
if (__args.length === 0) {
return utils.convReturnVertxGen(Pipe, j_jsonParser["pipe()"](), JsonEvent._jtype) ;
} else if (typeof __super_pipe != 'undefined') {
return __super_pipe.apply(this, __args);
}
else throw new TypeError('function invoked with invalid arguments');
};
/**
Pipe this <code>ReadStream</code> to the <code>WriteStream</code>.
<p>
Elements emitted by this stream will be written to the write stream until this stream ends or fails.
<p>
Once this stream has ended or failed, the write stream will be ended and the <code>handler</code> will be
called with the result.
@public
@param dst {WriteStream} the destination write stream
@param handler {function}
*/
this.pipeTo = function(dst, handler) {
var __args = arguments;
if (__args.length === 2 && typeof __args[0] === 'object' && __args[0]._jdel && typeof __args[1] === 'function') {
j_jsonParser["pipeTo(io.vertx.core.streams.WriteStream,io.vertx.core.Handler)"](dst._jdel, function(ar) {
if (ar.succeeded()) {
handler(null, null);
} else {
handler(null, ar.cause());
}
});
} else if (__args.length === 1 && typeof __args[0] === 'object' && __args[0]._jdel) {
var __prom = Promise.promise();
var __prom_completer_handler = function (result, cause) { if (cause === null) { __prom.complete(result); } else { __prom.fail(cause); } };
j_jsonParser["pipeTo(io.vertx.core.streams.WriteStream,io.vertx.core.Handler)"](dst._jdel, function(ar) {
if (ar.succeeded()) {
__prom_completer_handler(null, null);
} else {
__prom_completer_handler(null, ar.cause());
}
});
return __prom.future();
} else if (typeof __super_pipeTo != 'undefined') {
return __super_pipeTo.apply(this, __args);
}
else throw new TypeError('function invoked with invalid arguments');
};
/**
Handle a <code>Buffer</code>, pretty much like calling {@link Handler#handle}.
@public
@param buffer {Buffer}
@return {JsonParser} a reference to this, so the API can be used fluently
*/
this.write = function(buffer) {
var __args = arguments;
if (__args.length === 1 && typeof __args[0] === 'object' && __args[0]._jdel) {
j_jsonParser["write(io.vertx.core.buffer.Buffer)"](buffer._jdel) ;
return that;
} else if (typeof __super_write != 'undefined') {
return __super_write.apply(this, __args);
}
else throw new TypeError('function invoked with invalid arguments');
};
/**
End the stream, this must be called after all the json stream has been processed.
@public
*/
this.end = function() {
var __args = arguments;
if (__args.length === 0) {
j_jsonParser["end()"]();
} else if (typeof __super_end != 'undefined') {
return __super_end.apply(this, __args);
}
else throw new TypeError('function invoked with invalid arguments');
};
/**
Flip the parser to emit a stream of events for each new json object.
@public
@return {JsonParser} a reference to this, so the API can be used fluently
*/
this.objectEventMode = function() {
var __args = arguments;
if (__args.length === 0) {
j_jsonParser["objectEventMode()"]() ;
return that;
} else if (typeof __super_objectEventMode != 'undefined') {
return __super_objectEventMode.apply(this, __args);
}
else throw new TypeError('function invoked with invalid arguments');
};
/**
Flip the parser to emit a single value event for each new json object.
</p>
Json object currently streamed won't be affected.
@public
@return {JsonParser} a reference to this, so the API can be used fluently
*/
this.objectValueMode = function() {
var __args = arguments;
if (__args.length === 0) {
j_jsonParser["objectValueMode()"]() ;
return that;
} else if (typeof __super_objectValueMode != 'undefined') {
return __super_objectValueMode.apply(this, __args);
}
else throw new TypeError('function invoked with invalid arguments');
};
/**
Flip the parser to emit a stream of events for each new json array.
@public
@return {JsonParser} a reference to this, so the API can be used fluently
*/
this.arrayEventMode = function() {
var __args = arguments;
if (__args.length === 0) {
j_jsonParser["arrayEventMode()"]() ;
return that;
} else if (typeof __super_arrayEventMode != 'undefined') {
return __super_arrayEventMode.apply(this, __args);
}
else throw new TypeError('function invoked with invalid arguments');
};
/**
Flip the parser to emit a single value event for each new json array.
</p>
Json array currently streamed won't be affected.
@public
@return {JsonParser} a reference to this, so the API can be used fluently
*/
this.arrayValueMode = function() {
var __args = arguments;
if (__args.length === 0) {
j_jsonParser["arrayValueMode()"]() ;
return that;
} else if (typeof __super_arrayValueMode != 'undefined') {
return __super_arrayValueMode.apply(this, __args);
}
else throw new TypeError('function invoked with invalid arguments');
};
/**
@public
@return {JsonParser}
*/
this.pause = function() {
var __args = arguments;
if (__args.length === 0) {
j_jsonParser["pause()"]() ;
return that;
} else if (typeof __super_pause != 'undefined') {
return __super_pause.apply(this, __args);
}
else throw new TypeError('function invoked with invalid arguments');
};
/**
@public
@return {JsonParser}
*/
this.resume = function() {
var __args = arguments;
if (__args.length === 0) {
j_jsonParser["resume()"]() ;
return that;
} else if (typeof __super_resume != 'undefined') {
return __super_resume.apply(this, __args);
}
else throw new TypeError('function invoked with invalid arguments');
};
/**
@public
@param amount {number}
@return {JsonParser}
*/
this.fetch = function(amount) {
var __args = arguments;
if (__args.length === 1 && typeof __args[0] ==='number') {
j_jsonParser["fetch(long)"](amount) ;
return that;
} else if (typeof __super_fetch != 'undefined') {
return __super_fetch.apply(this, __args);
}
else throw new TypeError('function invoked with invalid arguments');
};
/**
@public
@param endHandler {function}
@return {JsonParser}
*/
this.endHandler = function(endHandler) {
var __args = arguments;
if (__args.length === 1 && (typeof __args[0] === 'function' || __args[0] == null)) {
j_jsonParser["endHandler(io.vertx.core.Handler)"](endHandler) ;
return that;
} else if (typeof __super_endHandler != 'undefined') {
return __super_endHandler.apply(this, __args);
}
else throw new TypeError('function invoked with invalid arguments');
};
/**
@public
@param handler {function}
@return {JsonParser}
*/
this.handler = function(handler) {
var __args = arguments;
if (__args.length === 1 && (typeof __args[0] === 'function' || __args[0] == null)) {
j_jsonParser["handler(io.vertx.core.Handler)"](handler == null ? null : function(jVal) {
handler(utils.convReturnVertxGen(JsonEvent, jVal));
}) ;
return that;
} else if (typeof __super_handler != 'undefined') {
return __super_handler.apply(this, __args);
}
else throw new TypeError('function invoked with invalid arguments');
};
/**
@public
@param handler {function}
@return {JsonParser}
*/
this.exceptionHandler = function(handler) {
var __args = arguments;
if (__args.length === 1 && (typeof __args[0] === 'function' || __args[0] == null)) {
j_jsonParser["exceptionHandler(io.vertx.core.Handler)"](handler == null ? null : function(jVal) {
handler(utils.convReturnThrowable(jVal));
}) ;
return that;
} else if (typeof __super_exceptionHandler != 'undefined') {
return __super_exceptionHandler.apply(this, __args);
}
else throw new TypeError('function invoked with invalid arguments');
};
// A reference to the underlying Java delegate
// NOTE! This is an internal API and must not be used in user code.
// If you rely on this property your code is likely to break if we change it / remove it without warning.
this._jdel = j_jsonParser;
};
JsonParser._jclass = utils.getJavaClass("io.vertx.core.parsetools.JsonParser");
JsonParser._jtype = {accept: function(obj) {
return JsonParser._jclass.isInstance(obj._jdel);
},wrap: function(jdel) {
var obj = Object.create(JsonParser.prototype, {});
JsonParser.apply(obj, arguments);
return obj;
},
unwrap: function(obj) {
return obj._jdel;
}
};
JsonParser._create = function(jdel) {var obj = Object.create(JsonParser.prototype, {});
JsonParser.apply(obj, arguments);
return obj;
}
/**
Create a new <code>JsonParser</code> instance.
@memberof module:vertx-js/json_parser
@param stream {ReadStream}
@return {JsonParser}
*/
JsonParser.newParser = function() {
var __args = arguments;
if (__args.length === 0) {
return utils.convReturnVertxGen(JsonParser, JJsonParser["newParser()"]()) ;
} else if (__args.length === 1 && typeof __args[0] === 'object' && __args[0]._jdel) {
return utils.convReturnVertxGen(JsonParser, JJsonParser["newParser(io.vertx.core.streams.ReadStream)"](__args[0]._jdel)) ;
}else throw new TypeError('function invoked with invalid arguments');
};
module.exports = JsonParser;