Architecture Design Thinking

Architectural Design Thinking
    A large project needs someone to do the overall architectural design, that is, a so-called architect is needed. Through the experience of several projects, we are now doing some thinking on the design of the architecture.
1. Things to do in architecture design
    1. Horizontally divide the abstraction level and the dependencies between functions. Assuming that the implementation language is java, the output may be sub-projects, package names, sub-package names, interface names, etc. This part also involves which open source components or codes to choose.
    2. Vertical segmentation of sub-systems, sub-modules, services, etc.
    3. Interaction and decoupling between various parts, including the service level and the internal
subsystems What interactive things are included on the client side?
    Hardware events such as touch, UI and effects, time-related logic such as timer, logic system, model, and network interaction
Third, the interaction and design between the client parts are
    separated from MVC: hardware events and UI Interaction (if the os has already encapsulated the controls, it is very simple, if not, you need to design the event system yourself); the UI is passively refreshed, which is the observer and responder of logic; logic (usually a singleton or static function) is controlled by timer, Driven by network and UI (such as whether you have seen the logic above UI); timer and network are self-driven and distribute events; model serves logic, providing services such as cache, serialization, deserialization, encryption and decryption, and persistence; practical The upper core is an observer mode
4. Horizontal segmentation of the android client
    1. Basic functions
        common
        common.nio
        common.log
        common.compression
        common.security
        common.security.md5
        common.security.rsa
        common.security.des
            .
            .
            .
    2. Service package
        service.net
            NetworkState isWIFIConnected and other services.http             AsyncWWW             , etc., you can consider loopj framework         service.asyncIO
        service.cache         MediaScanner             DiskLruCache             CacheManager         service .webview         service.versioncontrol             SOManager         service.sdk         service.sdk.share         service.sdk.share.weixin         service.sdk.share.weibo       













        service.sdk.pay
        service.sdk.pay.alipay
        service.sdk.push
        service.sdk.push.baidu
        service.sdk.login
        service.statistics
            Device 3.         Services
    provided by a certain type of app, such as services required by video apps
.video.nativeplayer
        service.video.ad
        service.video.p2p
        service.video.thumbnailer
        service.video.subtitle
        service.video.danmaku
        service.video.drm
        service.video.grey
    4. MVC architecture
        frame of app
    5. Specific app implements
        app
        app.base
            BaseActivity
            ActivityManager
            BaseActivityLogic
        app.impl.models
        app.impl.logicSystem
        app.impl.service
        app.impl.api
        app.impl.api.net
            HttpClient
            MsgFactory
        app.impl.ui
        app.impl.ui.fragment
        app.impl.ui.animation
        app .impl.ui.activity
        app.impl.ui.adapter
        app.impl.ui.custom
        app.impl.ui.custom.control
        app.impl.ui.custom.view
            AsyncImageView
        app.impl.ui.custom.layout

Five, What does the server include?
    Data persistence, cache, model, logic, network framework and asynchronous IO, timer
six, and the interaction between the server parts
    Persistence and cache are model services; network and timer drive logic; generally, the server will be divided into services, and the inside of the service is the trigger logic of event callbacks. The logic implements the so-called logic based on the model,
etc.
    1. Basic package
        common
        common.nio
        common.log
        common.compression
        common.security
        common.security.md5
        common.security.rsa
        common.security.des
        common.executer
        common.tcpPool
        common.scheduler
        common.asyncIO
        common.IDGenerator
        common.route
        common.timer
    2. Encapsulation of services and components
        component.netty
            AsyncTcp
        component.redis
        component.redis.connectionPool
        component.mysql
        component.mysql.connectionPool
        component.load
        component.config
        component.bootstrap
        component.loadbalance
        component.heartbeat
        component.sql
        component.rpc
    3. Basic aggregation
        base.app
        base.service
    4. Implementation of specific services
        app
        app.base
        app.impl
        app.impl.subsystem