Spark项目之电商用户行为分析大数据平台之(十二)Spark上下文构建及模拟数据生成

一、模拟生成数据

  1 package com.bw.test;
  2 
  3 import java.util.ArrayList;
  4 import java.util.Arrays;
  5 import java.util.List;
  6 import java.util.Random;
  7 import java.util.UUID;
  8 
  9 import com.bw.util.DateUtils;
 10 import com.bw.util.StringUtils;
 11 import org.apache.spark.api.java.JavaRDD;
 12 import org.apache.spark.api.java.JavaSparkContext;
 13 import org.apache.spark.sql.DataFrame;
 14 import org.apache.spark.sql.Row;
 15 import org.apache.spark.sql.RowFactory;
 16 import org.apache.spark.sql.SQLContext;
 17 import org.apache.spark.sql.types.DataTypes;
 18 import org.apache.spark.sql.types.StructType;
 19 
 20 
 21 /**
 22  * 模拟数据程序
 23  * @author Administrator
 24  *
 25  */
 26 public class MockData {
 27 
 28     /**
 29      * 模拟数据
 30      * @param sc
 31      * @param sqlContext
 32      */
 33     public static void mock(JavaSparkContext sc,
 34             SQLContext sqlContext) {
 35         List<Row> rows = new ArrayList<Row>();
 36         
 37         String[] searchKeywords = new String[] {"火锅", "蛋糕", "重庆辣子鸡", "重庆小面",
 38                 "呷哺呷哺", "新辣道鱼火锅", "国贸大厦", "太古商场", "日本料理", "温泉"};
 39         String date = DateUtils.getTodayDate();
 40         String[] actions = new String[]{"search", "click", "order", "pay"};
 41         Random random = new Random();
 42         
 43         for(int i = 0; i < 100; i++) {
 44             //生产100个userID
 45             long userid = random.nextInt(100);    
 46             
 47             for(int j = 0; j < 10; j++) {
 48                 //每个userID有10个sessionID
 49                 String sessionid = UUID.randomUUID().toString().replace("-", "");  
 50                 String baseActionTime = date + " " + random.nextInt(23);
 51                 
 52                 Long clickCategoryId = null;
 53                 //每个sessionID可能会做0-100之间的action操作
 54                 for(int k = 0; k < random.nextInt(100); k++) {
 55                     long pageid = random.nextInt(10);    
 56                     String actionTime = baseActionTime + ":" + StringUtils.fulfuill(String.valueOf(random.nextInt(59))) + ":" + StringUtils.fulfuill(String.valueOf(random.nextInt(59)));
 57                     String searchKeyword = null;
 58                     Long clickProductId = null;
 59                     String orderCategoryIds = null;
 60                     String orderProductIds = null;
 61                     String payCategoryIds = null;
 62                     String payProductIds = null;
 63                     
 64                     String action = actions[random.nextInt(4)];
 65                     if("search".equals(action)) {
 66                         searchKeyword = searchKeywords[random.nextInt(10)];   
 67                     } else if("click".equals(action)) {
 68                         if(clickCategoryId == null) {
 69                             clickCategoryId = Long.valueOf(String.valueOf(random.nextInt(100)));    
 70                         }
 71                         clickProductId = Long.valueOf(String.valueOf(random.nextInt(100)));  
 72                     } else if("order".equals(action)) {
 73                         orderCategoryIds = String.valueOf(random.nextInt(100));  
 74                         orderProductIds = String.valueOf(random.nextInt(100));
 75                     } else if("pay".equals(action)) {
 76                         payCategoryIds = String.valueOf(random.nextInt(100));  
 77                         payProductIds = String.valueOf(random.nextInt(100));
 78                     }
 79                     
 80                     Row row = RowFactory.create(date, userid, sessionid, 
 81                             pageid, actionTime, searchKeyword,
 82                             clickCategoryId, clickProductId,
 83                             orderCategoryIds, orderProductIds,
 84                             payCategoryIds, payProductIds, 
 85                             Long.valueOf(String.valueOf(random.nextInt(10))));    
 86                     rows.add(row);
 87                 }
 88             }
 89         }
 90         
 91         JavaRDD<Row> rowsRDD = sc.parallelize(rows);
 92         
 93         StructType schema = DataTypes.createStructType(Arrays.asList(
 94                 DataTypes.createStructField("date", DataTypes.StringType, true),
 95                 DataTypes.createStructField("user_id", DataTypes.LongType, true),
 96                 DataTypes.createStructField("session_id", DataTypes.StringType, true),
 97                 DataTypes.createStructField("page_id", DataTypes.LongType, true),
 98                 DataTypes.createStructField("action_time", DataTypes.StringType, true),
 99                 DataTypes.createStructField("search_keyword", DataTypes.StringType, true),
100                 DataTypes.createStructField("click_category_id", DataTypes.LongType, true),
101                 DataTypes.createStructField("click_product_id", DataTypes.LongType, true),
102                 DataTypes.createStructField("order_category_ids", DataTypes.StringType, true),
103                 DataTypes.createStructField("order_product_ids", DataTypes.StringType, true),
104                 DataTypes.createStructField("pay_category_ids", DataTypes.StringType, true),
105                 DataTypes.createStructField("pay_product_ids", DataTypes.StringType, true),
106                 DataTypes.createStructField("city_id", DataTypes.LongType, true)));
107 
108         DataFrame df = sqlContext.createDataFrame(rowsRDD, schema);
109 
110         df.registerTempTable("user_visit_action");  
111         for(Row _row : df.take(1)) {
112             System.out.println(_row);  
113         }
114         
115         /**
116          * ==================================================================
117          */
118         
119         rows.clear();
120         String[] sexes = new String[]{"male", "female"};
121         for(int i = 0; i < 100; i ++) {
122             long userid = i;
123             String username = "user" + i;
124             String name = "name" + i;
125             int age = random.nextInt(60);
126             String professional = "professional" + random.nextInt(100);
127             String city = "city" + random.nextInt(100);
128             String sex = sexes[random.nextInt(2)];
129             
130             Row row = RowFactory.create(userid, username, name, age, 
131                     professional, city, sex);
132             rows.add(row);
133         }
134         
135         rowsRDD = sc.parallelize(rows);
136         
137         StructType schema2 = DataTypes.createStructType(Arrays.asList(
138                 DataTypes.createStructField("user_id", DataTypes.LongType, true),
139                 DataTypes.createStructField("username", DataTypes.StringType, true),
140                 DataTypes.createStructField("name", DataTypes.StringType, true),
141                 DataTypes.createStructField("age", DataTypes.IntegerType, true),
142                 DataTypes.createStructField("professional", DataTypes.StringType, true),
143                 DataTypes.createStructField("city", DataTypes.StringType, true),
144                 DataTypes.createStructField("sex", DataTypes.StringType, true)));
145         
146         DataFrame df2 = sqlContext.createDataFrame(rowsRDD, schema2);
147         for(Row _row : df2.take(1)) {
148             System.out.println(_row);  
149         }
150         
151         df2.registerTempTable("user_info");  
152         
153         /**
154          * ==================================================================
155          */
156         rows.clear();
157         
158         int[] productStatus = new int[]{0, 1};
159         
160         for(int i = 0; i < 100; i ++) {
161             long productId = i;
162             String productName = "product" + i;
163             String extendInfo = "{\"product_status\": " + productStatus[random.nextInt(2)] + "}";    
164             
165             Row row = RowFactory.create(productId, productName, extendInfo);
166             rows.add(row);
167         }
168         
169         rowsRDD = sc.parallelize(rows);
170         
171         StructType schema3 = DataTypes.createStructType(Arrays.asList(
172                 DataTypes.createStructField("product_id", DataTypes.LongType, true),
173                 DataTypes.createStructField("product_name", DataTypes.StringType, true),
174                 DataTypes.createStructField("extend_info", DataTypes.StringType, true)));
175         
176         DataFrame df3 = sqlContext.createDataFrame(rowsRDD, schema3);
177         for(Row _row : df3.take(1)) {
178             System.out.println(_row);  
179         }
180         
181         df3.registerTempTable("product_info"); 
182     }
183     
184 }
View Code

二、构建Spark上下文

 1 import com.bw.conf.ConfigurationManager;
 2 import com.bw.constant.Constants;
 3 import com.bw.test.MockData;
 4 import org.apache.spark.SparkConf;
 5 import org.apache.spark.api.java.JavaSparkContext;
 6 import org.apache.spark.sql.SQLContext;
 7 
 8 
 9 /**
10  * 用户访问session分析Spark作业
11  *
12  * */
13 public class UserVisitSessionAnalyzeSpark {
14 
15     public static void main(String[] args) {
16         //构建Spark上下文
17         SparkConf sparkConf = new SparkConf();
18         //Spark作业本地运行
19         sparkConf.setMaster("local");
20         //为了符合大型企业的开发需求,不能出现硬编码,创建一个Constants接口类,定义一些常量
21         sparkConf.setAppName(Constants.SPARK_APP_NAME_SESSION);
22 
23         JavaSparkContext jsc = new JavaSparkContext(sparkConf);
24         SQLContext sqlContext = new SQLContext(jsc);
25 
26         mockData(jsc,sqlContext);
27         jsc.stop();
28     }
29 
30 
31     /**
32      * 生成模拟数据(只有本地模式,才会去生成模拟数据)
33      * @param sc
34      * @param sqlContext
35      */
36     private static void mockData(JavaSparkContext sc, SQLContext sqlContext) {
37         boolean local = ConfigurationManager.getBoolean(Constants.SPARK_LOCAL);
38         if(local) {
39             MockData.mock(sc, sqlContext);
40         }
41     }
42 }
View Code

三、打印的测试数据

3.1 user_visit_action

用户下的订单

[2018-05-23,34,4ad62c0824194e5687467bb84b9beeb9,3,2018-05-23 18:27:37,null,null,null,null,null,8,64,8]

3.2 user_info

[0,user0,name0,26,professional11,city4,male]

3.3 product_info

[0,product0,{"product_status": 1}]

 

posted @ 2018-05-23 20:23  扎心了,老铁  阅读(7327)  评论(4编辑  收藏  举报