|NO.Z.00094|——————————|^^ 部署 ^^|——|Hadoop&kafka.V01|——|kafka.v01|源码阅读|环境搭建|

一、Kafka源码剖析之源码阅读环境搭建

### --- [kafka高级特性解析]

~~~     [源码剖析:源码阅读环境搭建]   
~~~     [源码剖析：部署gradle]
~~~     [源码剖析：部署scala]
~~~     [源码剖析：IDEA导入源码]
~~~     [源码剖析：IDEA导入源码后设置] 

### --- 官网地址下载资源包

~~~     # 首先下载源码：
~~~     http://archive.apache.org/dist/kafka/1.0.2/kafka-1.0.2-src.tgz
~~~     # gradle-4.8.1下载地址：
~~~     https://services.gradle.org/distributions/gradle-4.8.1-bin.zip
~~~     # Scala-2.12.12下载地址：
~~~     https://downloads.lightbend.com/scala/2.12.12/scala-2.12.12.msi

二、安装配置Gradle

### --- 安装配置Gradle

~~~     解压gradle4.8.-bin.zip到一个目录

### --- 配置环境变量
~~~     配置环境变量，其中GRADLE_HOME指向gradle解压到的根目录，

~~~     # GRADLE_USER_HOME指向gradle的本地仓库位置。
~~~     变量名：GRADLE_USER_HOME
~~~     变量值：D:\JAVA\gradle-4.8.1

~~~     # PATH环境变量
~~~     新建：%GRADLE_USER_HOME%\bin

### --- 进入GRADLE_USER_HOME目录，添加init.gradle，

~~~     配置gradle的源：init.gradle内容：
~~~     进入GRADLE_USER_HOME目录：D:\JAVA\gradle-4.8.1：添加init.gradle

allprojects {
    repositories {
        maven { url 'https://maven.aliyun.com/repository/public/' }
        maven { url 'https://maven.aliyun.com/nexus/content/repositories/google' }
        maven { url 'https://maven.aliyun.com/nexus/content/groups/public/' }
        maven { url 'https://maven.aliyun.com/nexus/content/repositories/jcenter'}

        all { ArtifactRepository repo ->
            if (repo instanceof MavenArtifactRepository) {
                def url = repo.url.toString()

                if (url.startsWith('https://repo.maven.apache.org/maven2/') || url.startsWith('https://repo.maven.org/maven2') || url.startsWith('https://repo1.maven.org/maven2') || url.startsWith('https://jcenter.bintray.com/')) {
                    //project.logger.lifecycle "Repository ${repo.url} replaced by $REPOSITORY_URL."
                    remove repo
                }
            }
        }
    }

    buildscript {

        repositories {

            maven { url 'https://maven.aliyun.com/repository/public/'}
            maven { url 'https://maven.aliyun.com/nexus/content/repositories/google' }
            maven { url 'https://maven.aliyun.com/nexus/content/groups/public/' }
            maven { url 'https://maven.aliyun.com/nexus/content/repositories/jcenter'}
            all { ArtifactRepository repo ->
                if (repo instanceof MavenArtifactRepository) {
                    def url = repo.url.toString()
                    if (url.startsWith('https://repo1.maven.org/maven2') || url.startsWith('https://jcenter.bintray.com/')) {
                        //project.logger.lifecycle "Repository ${repo.url} replaced by $REPOSITORY_URL."
                        remove repo
                    }
                }
            }
        }
    }
}

### --- 验证gradle是否配置成功

~~~     ——>win+R——>cmd——>运行——>gradle -v——>部署完成——>END

C:\Users\Administrator>gradle -v

------------------------------------------------------------
Gradle 4.8.1
------------------------------------------------------------

Build time:   2018-06-21 07:53:06 UTC
Revision:     0abdea078047b12df42e7750ccba34d69b516a22

Groovy:       2.4.12
Ant:          Apache Ant(TM) version 1.9.11 compiled on March 23 2018
JVM:          1.8.0_231 (Oracle Corporation 25.231-b11)
OS:           Windows 10 10.0 amd64

三、Scala的安装和配置

### --- 安装Scala

~~~     ——>双击运行：scala-2.12.12.msi——>Next——>
~~~     ——>对勾：I accept the terms in the License Agreement——>Next——>
~~~     ——>选择：Scala安装目录：D:\JAVA\scala-2.12.2——>Next——>Install——>Finish——>END

### --- 配置环境变量

~~~     # 配置Scala环境变量
~~~     变量名：SCALA_HOME
~~~     变量值：D:\JAVA\scala-2.12.2
~~~     # 配置PATH变量值
~~~     新建：%SCALA_HOME%\bin

### --- 验证Scala是否部署完成

~~~     ——>win+R——>cmd——>scala——>:quit
~~~     输入:quit退出Scala的交互式环境。

四、Idea配置：scala插件导入

### --- idea安装Scala插件：

~~~     ——>Configure——>Plugins——>scala——>installed——>END

五、kafka源码导入前期准备工作

### --- 解压源码：kafka-1.0.2-src.tgz并执行gradle命令

~~~     打开CMD，进入kafka-1.0.2-src目录，执行：gradle
~~~     进入kafka源码目录：E:\NO.Z.10000——javaproject\NO.Z.00002.Hadoop\kafka-1.0.2-src

~~~     会生成两个文件：gradlew和gradlew.bat
~~~     结束后，执行gradle idea（注意不要使用生成的gradlew.bat执行操作）

E:\NO.Z.10000——javaproject\NO.Z.00002.Hadoop\kafka-1.0.2-src>gradle

> Configure project :
Building project 'core' with Scala version 2.11.12

BUILD SUCCESSFUL in 5s
1 actionable task: 1 up-to-date

### --- 执行gradle idea，生成IDEA能够认识的源文件

E:\NO.Z.10000——javaproject\NO.Z.00002.Hadoop\kafka-1.0.2-src>gradle idea

> Configure project :
Building project 'core' with Scala version 2.11.12
> Task :idea
Generated IDEA project at file:///E:/NO.Z.10000——javaproject/NO.Z.00002.Hadoop/kafka-1.0.2-src/kafka-1.0.2-src.ipr

BUILD SUCCESSFUL in 1m 57s
22 actionable tasks: 22 executed

六、IDEA导入kafka源码

### --- idea导入源码：

~~~     ——>IDEA——>Import Project——>选择需要导入的源码目录——>OK
~~~     ——>Import project from external model——>Gradle——>Finish——>END

### --- kafka源码导入成功后设置

~~~     ——>项目源码目录下——>build.gradle——>右键：Import Gradle Project——>END

七、其它配置

### --- IDEA下gradle配置

~~~     ——>File——>Settings——>Build，Execution，Deployment——>Build Tools
~~~     ——>Maven——>Gradle——>配置信息如下——>Gradle user home:D:\JAVA\gradle-4.8.1
~~~     ——>Gradle：Use Gradle from:Specified location:D:\JAVA\gradle-4.8.1
~~~     ——>APPLY——OK——>END

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Walter Savage Landor:strove with none,for none was worth my strife.Nature I loved and, next to Nature, Art:I warm'd both hands before the fire of life.It sinks, and I am ready to depart

                                                                                                                                                   ——W.S.Landor

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