Extremely fast enterprise server framework, can be used in RPC, web server framework, game server framework.
Tags: java, protobuf, kryo, netty
Published: 2023-02-16 09:02:07


Why is zfoo protocol ?

- The protocol currently supports C++ C# Go Java Javascript TypeScript GDScript Lua
- Universal distributed server protocol implementation, there are implementations in other languages, which can easily
  implement RPC, servers, and microservices on other platforms
- The fastest custom format framework for Java binary serialization, with the fewest serialized bytes, more secure and
  compatible
- In the single-threaded benchmark test, serialization and deserialization are 50% faster than Protobuf and 100% faster
  than Kryo

Ⅰ. Introduction of zfoo🚩


- **Extremely fast, asynchronous, Actor design pattern, lock-free design, RPC framework based on Spring MVC**
- **Fastest serialization and deserialization**，use [zfoo protocol](protocol/README.md) as a network protocol
- **High scalability**，Single server deployment, microservice deployment, cluster deployment, gateway deployment
- **Can be used as a game server framework or website server framework.**

Perfect work development process, complete online solution

- Spring projects, distributed projects, container projects， **hot update code without
  downtime** [hotswap](hotswap/src/test/java/com/zfoo/hotswap/ApplicationTest.java)
- Excel json csv configuration is automatically mapped and parsed，**Online hotswap
  configuration** [storage](storage/src/test/java/com/zfoo/storage/ApplicationTest.java)
- Automapping framework for MongoDB [orm](orm/README.md)
- Event bus [event](event/src/test/java/com/zfoo/event/ApplicationTest.java)
- Time task scheduling [scheduler](scheduler/README.md)
- **cpu, memory, hard disk, network monitoring built into the program** no code and extra tools
  required [monitor](monitor/src/test/java/com/zfoo/monitor/ApplicationTest.java)

Ⅱ. Who use this project
---------------

- Projects with extremely high performance requirements, such as website and game server frameworks, single server,
  global server, live chat, IM system, real-time push
- Projects such as saving, development, deployment, operation and maintenance costs
- As a backend infrastructure for **Godot，Unity，Cocos，Webgl，H5**，Network protocol supports tcp udp websocket http
- [Keep it Simple and Stupid](https://baike.baidu.com/item/KISS原则/3242383) ，simple configuration, lightweight code

Ⅲ. Tutorials
--------------------

- [FAQ](./doc/FAQ.md)，There are standard demo display and instructions in the test folder of each project directory,
  which can be run directly

- [tank-game-server](https://github.com/zfoo-project/tank-game-server) Online game《The Fight of Tanks》，novice friendly,
  difficulty 2 stars
    - Quick star, tank game entry [tank.zfoo.net](http://tank.zfoo.net)
    - Quick star, tank background management [tank-admin.zfoo.net](http://tank-admin.zfoo.net)

- [godot-bird](https://github.com/zfoo-project/godot-bird) bird and bird，powered by godot

- [cocos-fivechess](https://github.com/zfoo-project/fivechess) five chess，use cocos as client


Ⅳ. Install and use⭐
------------

#### 1. Environmental Requirements and Installation

**JDK 11+**，**OpenJDK** or **Oracle JDK** ，maven install to local repository

```
If you do not have JDK 11+ installed, the quick installation method is to download directly 
from Project Structure, Platform Settings, SDKs in the upper right corner of Idea
```

#### 2. [protocol](protocol/README.md) fastest serialization and deserialization

```
// zfoo protocol registration, can only be initialized once
ProtocolManager.initProtocol(Set.of(ComplexObject.class, ObjectA.class, ObjectB.class));

// serialization
ProtocolManager.write(byteBuf, complexObject);

// deserialization
var packet = ProtocolManager.read(byteBuf);
```

#### 3. [net](net/README.md) fastest RPC framework, supports tcp udp websocket http

```
// Service provider, only need to add an annotation to the method, the interface will be automatically registered
@PacketReceiver
public void atUserInfoAsk(Session session, UserInfoAsk ask) {
}

// Consumers, synchronously requesting remote service, will block the current thread
var userInfoAsk = UserInfoAsk.valueOf(userId);
var answer = NetContext.getCosumer().syncAsk(userInfoAsk, UserInfoAnswer.class, userId).packet();

// Consumers, asynchronously requesting remote service, and will still execute logic in the current thread after the asynchronous
NetContext.getCosumer()
                    .asyncAsk(userInfoAsk, UserInfoAnswer.class, userId)
                    .whenComplete(sm -> {
                        // do something
                    );
```

#### 4. [hotswap](hotswap/src/test/java/com/zfoo/hotswap/ApplicationTest.java) hot update code, no need to stop the server, no additional configuration, just one line of code to start hot update

```
// Pass in the class file that needs to be updated
HotSwapUtils.hotswapClass(bytes);
```

#### 5. [orm](orm/README.md) automatic mapping framework based on mongodb，The secondary cache is designed using [caffeine](https://github.com/ben-manes/caffeine) to fully release the database pressure

```
// You don't need to write sql and any configuration yourself, define a table in the database directly through annotation definitions
@EntityCache
public class UserEntity implements IEntity<Long> {
    @Id
    private long id;
    private String name;
}

// update database data
entityCaches.update(userEntity);
```

#### 6. [event](event/src/test/java/com/zfoo/event/ApplicationTest.java) use the observer design pattern, decouples different modules and improves the quality of the code

```
// To receive an event, you only need to add an annotation to the method and the method will be automatically listen for the event
@EventReceiver
public void onMyNoticeEvent(MyNoticeEvent event) {
    // do something
}

// fire an event
EventBus.submit(MyNoticeEvent.valueOf("My event"));
```

#### 7. [scheduler](scheduler/README.md) scheduling Framework Based on Cron Expression

````
@Scheduler(cron = "0/1 * * * * ?")
public void cronSchedulerPerSecond() {
    // do something
}
````

#### 8. [storage](storage/src/test/java/com/zfoo/storage/ApplicationTest.java) Excel to class automatic mapping framework, you only need to define a class corresponding to Excel, and directly parse Excel

```
@Resource
public class StudentResource {
    @Id
    private int id;
    @Index
    private String name;
    private int age;
}
```

Ⅴ. Commit specification👏
----------

- People who like this project are welcome to maintain this project together, and pay attention to the following
  specifications when submitting code
- The code formats uses the default formatting of IntelliJ Idea
- [conventional-changelog-metahub](https://github.com/pvdlg/conventional-changelog-metahub#commit-types)

Ⅵ. License
-----------

zfoo use [Apache License Version 2.0](http://www.apache.org/licenses/LICENSE-2.0)

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