一、apm ui中数据源、datasources、policy的区别
先看一个groupwidget的定义：
{
"id":"Bocom_DB_AllList_Widget",
"title":"数据库服务器列表",
"type":"HC_DB",
"width":140,
"height":380,
"preventCache": false,
"dataPrefetch": true,
"help":"",
"SourceToken":"",
"arg_service_code":"",
"arg_type":"",
"arg_code_ip":"",
"arg_app_code":"",
"requestParams": [
"$.definition.arg_service_code",
"$.definition.arg_type",
"$.definition.arg_code_ip",
"$.definition.arg_app_code",
"$.definition.datasets.parameters.arg_service_code",
"$.definition.datasets.parameters.arg_type",
"$.definition.datasets.parameters.arg_app_code",
"$.definition.datasets.parameters.arg_code_ip"
],
"datasets":[
{
"id":"SERVER_LIST",
"type":"NOWRAPPER",
"columns":[
"IP"
],
"query":{
"executePolicy":"true"
},
"parameters":{
}
}
],
"widgets":[
{
"class":"ibm.apm.widgets.GridWidget",
"wid":"w002",
"params":{
"label":"",
"x":0,
"y":0,
"width":140,
"height":610,
"meta":[
{
"id":"SERVER_LIST.IP",
"alias":"服务器IP",
"align": "left",
"moveTo":"Bocom_Page_DBServer_Detail",
"moveToParams":{
"mixin":{
"$.definition.groupWidgets.arg_service_code":"$.definition.arg_service_code",
"$.definition.groupWidgets.arg_type":"$.definition.arg_type",
"$.definition.groupWidgets.arg_code_ip":"$.selectedData.properties[0].value",
"$.definition.groupWidgets.arg_app_code":"$.definition.arg_app_code",
"$..parameters.arg_service_code":"$.definition.arg_service_code",
"$..parameters.arg_type":"$.definition.arg_type",
"$..parameters.arg_code_ip":"$.selectedData.properties[0].value",
"$..parameters.arg_app_code":"$.definition.arg_app_code"
}
}
}
]
}
}
]
}
其中， "datasets"中的 "id":"SERVER_LIST",SERVER_LIST就是policy的名字，也是dataset的id号。加上IMPACT_POLICY_前缀后，变成IMPACT_POLICY_SERVER_LIST，就是datasource的名字
二、如何构造URL发给Impact DP测试数据：
http://localhost:8080/ibm/tivoli/apm/rest/widgets/Bocom_DB_List_Widget/data/?requestParams=%7B%22%24.definition.arg_service_code%22%3A%22E01_SEB%22%2C%22%24.definition.arg_type%22%3A%224%22%2C%22%24.definition.arg_code_ip%22%3A%22%22%2C%22%24.definition.arg_app_code%22%3A%22SEB%22%2C%22%24.definition.datasets.parameters.arg_service_code%22%3A%22E01_SEB%22%2C%22%24.definition.datasets.parameters.arg_type%22%3A%224%22%2C%22%24.definition.datasets.parameters.arg_app_code%22%3A%22SEB%22%7D&dojo.preventCache=1349846713903
这里的主要看有parameters的参数，它会传给DP来过滤数据。
%22%3A%224%22%2C%22%24 大概等于 ="4", 因为是些转移符，看%22 和%22之间的值就可以。这些过滤值在对应的group widget的json定义文件中也找得到。
从\apm\definitions\groupwidgets 找到group widget： Bocom_DB_List_Widget， 打开该文件，可以找到datasets的id：DB_STATUS_LIST
三、可以构造下面的URL，然后在浏览器里面直接测试DP是否返回正确数据：
http://192.168.1.2:16310/ibm/tivoli/rest/providers/Impact_NCICLUSTER/datasources/IMPACT_POLICY_DB_STATUS_LIST/datasets/DB_STATUS_LIST/items?properties=all¶m_arg_service_code=E01_SEB&start=0¶m_arg_type=4¶m_arg_app_code=SEB&count=1000&executePolicy=true¶m_refId=9dc2cd1b-d0b9-4ee5-b2f1-97ad858b1b11
红色的基本不变，只是对应的粗体字需要根据你的实际情况来更改，参数值和前面的请求URL（就是第二步中的URL）要对应（也就是和group widget中定义的要对应）。
四、几个工具url
How to test a group widget ?
http://192.168.1.2:16310/ibm/tivoli/apm/rest/apm/test.html?gwId=Bocom_DB_List_Widget
How to test a page?
http://192.168.1.2:16310/ibm/tivoli/apm/rest/apm/test.html?pageId=xxx
How to verify the Impact Data Provider whether it works fine?
https://192.168.1.2:16311/ibm/tivoli/test.html
https://192.168.1.2:16311/ibm/tivoli/rest/providers
https://192.168.1.2:16311/ibm/tivoli/rest/providers/Impact_NCICLUSTER/datasources
https://192.168.1.2:16311/ibm/tivoli/rest/providers/Impact_NCICLUSTER/datasources/IMPACT_POLICY_Biz_Chanel_SEB/datasets
https://192.168.1.2:16311/ibm/tivoli/rest/providers/Impact_NCICLUSTER/datasources/IMPACT_POLICY_Biz_Chanel_SEB/datasets/DSQLDT1/items?properties=all
http://192.168.1.2:16310/ibm/tivoli/rest/providers/Impact_NCICLUSTER/datasources/IMPACT_POLICY_DB_TABLESPACE_SUMMARY/datasets/DB_TABLESPACE_SUMMARY/items?properties=CODE_IP,DB_NAME,INSTANCE_NAME,TABLESPACE_TYPE,TABLESPACE_NAME,SPACE_USED_DMS_TABLE_PCT¶m_arg_service_code=E01_SEB&start=0¶m_arg_service_code_konder=E01_SEB_konder¶m_arg_type=4¶m_arg_app_code=SEB¶m_arg_service_code_event=E01_SEB_event&count=1000&executePolicy=true¶m_refId=0190b3f3-4021-4b9a-9c8c-ac1db72d8b73
五、
从DP取数据的，你需要把ip和端口换成你们的：
http://localhost:8080/ibm/tivoli/apm/rest/widgets/Bocom_DB_List_Widget/data/?requestParams=%7B%22%24.definition.arg_service_code%22%3A%22E01_SEB%22%2C%22%24.definition.arg_type%22%3A%224%22%2C%22%24.definition.arg_code_ip%22%3A%22%22%2C%22%24.definition.arg_app_code%22%3A%22SEB%22%2C%22%24.definition.datasets.parameters.arg_service_code%22%3A%22E01_SEB%22%2C%22%24.definition.datasets.parameters.arg_type%22%3A%224%22%2C%22%24.definition.datasets.parameters.arg_app_code%22%3A%22SEB%22%7D&dojo.preventCache=1349846713903
2.你把上面的取data的URL copy到浏览器中，你会看到如下的结果：
---------------2012/09/27-----------------------
"requestParams": [
"$.definition.arg_service_code",
"$.definition.arg_type",
"$.definition.arg_code_ip",
"$.definition.arg_app_code",
"$.definition.arg_sys_flag",
"$.definition.datasets.parameters.arg_service_code", ->"$.definition.datasets.query.arg_service_code",
"$.definition.datasets.parameters.arg_type", --> "$.definition.datasets.query.arg_type",
"$.definition.datasets.parameters.arg_app_code", --> "$.definition.datasets.query.arg_app_code",
"$.definition.datasets.parameters.arg_code_ip", --> "$.definition.datasets.query.arg_code_ip",
"$.definition.datasets.parameters.arg_sys_flag" --> "$.definition.datasets.query.arg_sys_flag"
]