README.md

Version 1.0

此程序在 node 0.6.6 ~ 0.7.4 下测试通过

你可以按照以下流程来部署测试程序:

####1 运行 sample 目录下的 service.js

   node service.js &

这个进程会在3561,3562 端口提供http 服务,来模拟真实的数据源 用curl 测试如下：

   curl http://localhost:3561/?fm=m

response :

   { "columns" : ["id","sex"],
     "data" : [ 
       [1,"m"],
       [2,"m"],
       [5,"m"],
       [7,"m"],
       [9,"m"]
     ]
   }

   curl http://localhost:3562/?minId=4

response:

   { "columns" : ["id","name","type"], 
     "data" : [ 
       [5,"n5","t5"],
       [6,"n6","t6"],
       [7,"n7","t7"],
       [8,"n8","t8"],
       [9,"n9","t9"],
       [10,"n10","t10"]
     ]
   }

####2 确认loader 配置正确 在 src/source/ 下，service_a.js ,service_b.js 为以上两个端口服务相应的loader， 如果默认的3561,3562 端口被占用，请确认其配置做相应修改

####3 确认sql 模板配置 目前iTier 仅支持三级目录配置，查看 resources/test/sources/test.json, 比如 其中有 test_service_a ,test_service_b 相应的sql模板:

"test_service_a" : {
  "config":"select id as num from service_a.table where ##fm## order by num DESC limit 1,2",
  "params":{
    "fm":[{
      "type":"string",
      "pos":"##fm##"
    }]
  }
}

####4 启动 iTier 服务 运行 run.sh ,默认会在 3459 端口进行监听（配置见 conf.js）

####5 测试服务 现在你可以测试在sql模板配置的所有服务 测试服务：test_service_a: 测试命令：

 curl http://127.0.0.1:3459/test/sources/test/test_service_a/where/fm:eq:f

后台操作：后台会对 test_service_a 的模板算子 ##fm## 替换为 fm=m 返回结果：

   { "columns" : ["num"],
     "data":[
       [8],
       [6]
     ]
   }

测试服务：test_servie_b

测试命令：

 curl http://127.0.0.1:3459/test/sources/test/test_service_b/where/minId:eq:3

返回结果：

   { "columns":["name"],
     "data":[
       ["n9"],
       ["n8"],
       ["n7"],
       ["n6"],
       ["n5"],
       ["n4"],
       ["n10"]
     ]
   }

测试服务：test_innerjoin

测试命令：

 curl http://127.0.0.1:3459/test/sources/test/test_innerjoin/where/fm:eq:f/where/minId:eq:3

后台操作：替换后的 sql 语句为

"select * from service_a.table as sa inner join service_b.table as sb on sa.id=sb.id where fm=f and minId=3"

返回结果：

   { "columns" : ["id","sex","name","type"],
     "data" : [
       [4,"f","n4","t4"],
       [6,"f","n6","t6"],
       [8,"f","n8","t8"],
       [10,"f","n10","t10"]
     ]
   }