通过java代码对kylin进行cube build

转：http://www.cnblogs.com/hark0623/p/5580632.html

通常是用于增量

代码如下：

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package com.dlht.kylinDemo;   import java.io.BufferedReader; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URL;   import org.apache.commons.codec.binary.Base64;   public class BuildTest {     static String ACCOUNT = "ADMIN";     static String PWD = "KYLIN";     static String PATH = "http://192.168.22.102:7070/kylin/api/cubes/KPI_Base_DataCppaCrcCount_test_Cube/rebuild";         public static void main(String[] args) {         System.out                 .println(Put(                         PATH,                         "{\"startTime\": 1451750400000,\"endTime\": 1451836800000,\"buildType\": \"BUILD\"}"));       }       public static String Put(String addr, String params) {         String result = "";         try {             URL url = new URL(addr);             HttpURLConnection connection = (HttpURLConnection) url                     .openConnection();             connection.setRequestMethod("PUT");             connection.setDoOutput(true);             String auth = ACCOUNT + ":" + PWD;             String code = new String(new Base64().encode(auth.getBytes()));             connection.setRequestProperty("Authorization", "Basic " + code);             connection.setRequestProperty("Content-Type",                     "application/json;charset=UTF-8");             PrintWriter out = new PrintWriter(connection.getOutputStream());             out.write(params);             out.close();             BufferedReader in;             try {                 in = new BufferedReader(new InputStreamReader(                         connection.getInputStream()));             } catch (FileNotFoundException exception) {                 java.io.InputStream err = ((HttpURLConnection) connection)                         .getErrorStream();                 if (err == null)                     throw exception;                 in = new BufferedReader(new InputStreamReader(err));             }             StringBuffer response = new StringBuffer();             String line;             while ((line = in.readLine()) != null)                 response.append(line + "\n");             in.close();               result = response.toString();         } catch (MalformedURLException e) {             System.err.println(e.toString());         } catch (IOException e) {             System.err.println(e.toString());         }         return result;     } }

这是官方教程：http://kylin.apache.org/docs15/howto/howto_use_restapi.html#build-cube 　

默认帐号密码就是ADMIN KYLIN

在starttime和endtime填写时间，就是build的开始结束时间，注意starttime肯定要先于endtime，同时还要注意，starttime必须要晚于最后一次构建的结束时间