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Thrift Haxe Software Library

License

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.

Using Thrift with Haxe

Haxe setup

Thrift requires Haxe 4.2.1. Installers for Windows and OSX platforms are available at http://haxe.org/download.

Depending on the desired targets, you may have to install the appropriate HaxeLibs after installing Haxe itself. For example, if you plan to target C++, enter the following command after installing Haxe:

haxelib install hxcpp

For other targets, please consult the Haxe documentation whether or not any additional target libraries need to be installed and how to achieve this.

Haxe on Linux

For Linux platforms it is recommended to use the distro-specific package manager, where possible. More detailed information can be found at the Haxe Linux download section: http://haxe.org/download/linux

If you run into the error message

Uncaught exception - load.c(237) : Failed to load library : /usr/lib/neko/regexp.ndll  
(libpcre.so.3: cannot open shared object file: No such file or directory)

this can be solved depending on your OSes bitness by either

sudo ln -sf /usr/lib/libpcre.so.1 /usr/lib/libpcre.so.3
sudo ldconfig

or

sudo ln -sf /usr/lib64/libpcre.so.1 /usr/lib64/libpcre.so.3
sudo ldconfig

Thrift Haxe bindings

Thrift Haxe bindings can be set up via the haxelib tool as usual. Alternatively, the "github" method can be used.

  • To set up any stable version, choose the appropriate branch (e.g. 0.14.1):

    • haxelib git thrift https://github.com/apache/thrift.git 0.14.1 lib/haxe

  • To set up the current development version, use the master branch:

    • haxelib git thrift https://github.com/apache/thrift.git master lib/haxe

As usual, the installed library can be updated using haxelib upgrade or haxelib update thrift.

In order to work with Thrift, you will need to install the Thrift compiler or build from source, depending on your operating system. Appropriate downloads and more information can be found at http://thrift.apache.org

To get started, visit the /tutorial/haxe and /test/haxe dirs for examples. If you are using the HaxeDevelop IDE, you'll find appropriate project files in these folders.

Breaking changes

This version requires Haxe 4 and cannot be used with earlier versions.

It is recommended to clear out all gen-haxe contents once before switching to the new version. Otherwise you may run into troubles with leftovers from previous versions.

The compiler option callbacks is now obsolete. The compiler will always generate a dual interface (i.e. with optional callback style) for use on the client side, plus a new _service interface to be used for server implementations. Consequentially, your client and server implementations will need some manual intervention.

PHP HTTP Server notes

  • you have to import PHP files generated by haxe into PHP
require_once  dirname(__FILE__) . '/bin/php-web-server/Main-debug.php';
  • trace() by default outputs into stdout (http response), so you have to redirect it to stderr or you own logs, something like
//remap trace to error log
haxe.Log.trace = function(v:Dynamic, ?infos:haxe.PosInfos) 
{ 
	//simulate normal trace https://github.com/HaxeFoundation/haxe/blob/development/std/haxe/Log.hx
	var newValue : Dynamic;
	if (infos != null && infos.customParams!=null) {
		var extra:String = "";
		for( v in infos.customParams )
			extra += "," + v;
		newValue = v + extra;
	}
	else {
		newValue = v;
	}
	var msg = infos != null ? infos.fileName + ':' + infos.lineNumber + ': ' : '';
	Sys.stderr().writeString('${msg}${newValue}\n');
}
  • to allow thrift server to read/write HTTP request/response, it should be pointed out to php streams
transport =	new TWrappingServerTransport(
				new TStreamTransport(
					new TFileStream("php://input", Read),
					new TFileStream("php://output", Append)
					)
				);
  • TSimpleServer doesn't stop after first call, so processor.process() should be called instead, or use runOnce property
var server = new TSimpleServer( processor, transport, transfactory, protfactory);
server.runOnce = true;