把此目录编译出来的ChainTest.so放的plugins目录下，配置由Interface节点加载。 将下面这段配置添加到NebulaInterface.json的dynamic_loading中
{
"so_path":"plugins/ChainTest.so", "load":true, "version": "1.0",
"cmd":[
],
"module":[
{"path":"/chain_test", "class":"hello::ModuleChainTest"}
],
"session":[],
"step":[]
}同时将下面这段配置添加到NebulaInterface.json的runtime配置里。
"runtime":{
"chains":{
"chain_1":["hello::StepOne", "hello::StepTwo", "hello::ModelOne", "hello::ModelTwo"],
"chain_2":["hello::ModelTwo",
["hello::StepOne", "hello::StepTwo", "hello::StepOne"],
"hello::ModelOne",
"hello::ModelTwo"
],
"chain_3":["hello::StepOne", "hello::ModelTwo", "hello::StepTwo", "hello::ModelOne"]
}chain_2的["hello::StepOne", "hello::StepTwo", "hello::StepOne"]为并行步骤，注意，并行步骤必须都为Step，不可以含有Model。
本测试需在NebulaLogic加载了Hello.so才能完成，因为StepOne和StepTwo两个步骤都是往LOGIC发送请求并得到LOGIC的响应后才完成。
配置完毕，启动NebulaInterface和NebulaLogic后，用以下命令分别测试：
curl -H "Content-Type:application/json" -X POST -d '{"chain_flag":"chain_1"}' http://${your_ip}:16003/chain_test
curl -H "Content-Type:application/json" -X POST -d '{"chain_flag":"chain_2"}' http://${your_ip}:16003/chain_test
curl -H "Content-Type:application/json" -X POST -d '{"chain_flag":"chain_3"}' http://${your_ip}:16003/chain_test"chain_flag"的值为"runtime"配置中"chains"里的key。
chain_1的结果输出：
[{
"hello::StepOne:38": "Nebula: hello!\n"
}, {
"hello::StepTwo:39": "Nebula: hello!\n"
}, {
"hello::ModelOne:13": "is a matrix."
}, {
"hello::ModelTwo:6": "is a matrix."
}]chain_2的结果输出：
[{
"hello::ModelTwo:6": "is a matrix."
}, {
"hello::StepOne:44": "Nebula: hello!\n"
}, {
"hello::StepTwo:45": "Nebula: hello!\n"
}, {
"hello::StepOne:46": "Nebula: hello!\n"
}, {
"hello::ModelOne:13": "is a matrix."
}, {
"hello::ModelTwo:6": "is a matrix."
}]chain_3的结果输出：
[{
"hello::StepOne:32": "Nebula: hello!\n"
}, {
"hello::ModelTwo:6": "is a matrix."
}, {
"hello::StepTwo:33": "Nebula: hello!\n"
}, {
"hello::ModelOne:13": "is a matrix."
}]