我已经使用与您相同版本的 CB 完成了以下测试(即 1.10.0)
首先,创建一个注册,作为 IOTA 将创建的注册:
(curl -s -S localhost:1026/v1/registry/registerContext -H "fiware-service:service1" -H "fiware-servicepath:/subservice1" -H 'Content-Type: application/json' -d @- | python -mjson.tool) <<EOF
{
"contextRegistrations": [
{
"entities": [
{
"type": "nccestimate",
"isPattern": "false",
"id": "ncc_estimate"
}
],
"attributes": [
{
"name": "transport_type",
"type": "string",
"isDomain": "false"
},
{
"name": "arrival",
"type": "string",
"isDomain": "false"
}
],
"providingApplication": "http://localhost:4044"
}
],
"duration": "P1M"
}
EOF
接下来,检查它是否与问题帖子中显示的注册完全相同(除了providingApplication
,指向本地主机):
curl localhost:1026/v1/registry/contextEntities/ncc_estimate -s -S -H "fiware-service:service1" -H "fiware-servicepath:/subservice1" -H 'Accept: application/json' | python -mjson.tool
哪个响应是
{
"contextRegistrationResponses": [
{
"contextRegistration": {
"attributes": [
{
"isDomain": "false",
"name": "transport_type",
"type": "string"
},
{
"isDomain": "false",
"name": "arrival",
"type": "string"
}
],
"entities": [
{
"id": "ncc_estimate",
"isPattern": "false",
"type": "nccestimate"
}
],
"providingApplication": "http://localhost:4044"
}
}
]
}
接下来,运行nc
本地主机上的进程providingApplication
port.
nc -l -p 4044
设置完成后,我们首先根据问题中的更新进行测试。
curl -s -S -X POST http://localhost:1026/v1/updateContext -H "fiware-service:service1" -H "fiware-servicepath:/subservice1" -H "Content-Type:application/json" -d @- <<EOF
{
"contextElements": [
{
"id": "ncc_estimate",
"attributes": [
{
"name": "arrival",
"type": "string",
"value": "some_value"
}
]
}
],
"updateAction": "UPDATE"
}
EOF
在这种情况下,Orion 无法识别注册并返回 Not Found 响应:
{
"contextResponses": [{
"contextElement": {
"type": "",
"isPattern": "false",
"id": "ncc_estimate",
"attributes": [{
"name": "arrival",
"type": "string",
"value": ""
}]
},
"statusCode": {
"code": "404",
"reasonPhrase": "No context element found",
"details": "ncc_estimate"
}
}]
}
换句话说,Orion 不会转发响应。我不知道为什么在你的情况下被转发并在 IOTA 日志文件中留下痕迹。
下一个测试使用相同的请求,但添加type
实体的字段。
curl -s -S -X POST http://localhost:1026/v1/updateContext -H "fiware-service:service1" -H "fiware-servicepath:/subservice1" -H "Content-Type:application/json" -d @- <<EOF
{
"contextElements": [
{
"id": "ncc_estimate",
"type": "nccestimate",
"attributes": [
{
"name": "arrival",
"type": "string",
"value": "some_value"
}
]
}
],
"updateAction": "UPDATE"
}
EOF
在这种情况下,请求被转发,我在nc
终端。
POST //updateContext HTTP/1.1
User-Agent: orion/1.10.0 libcurl/7.38.0
Host: localhost:4044
fiware-service: service1
Fiware-ServicePath: /subservice1
Accept: application/json
Content-length: 179
Content-type: application/json; charset=utf-8
Fiware-Correlator: 42e75f8a-fa0d-11e7-93f1-000c29173617
{"contextElements":[{"type":"nccestimate","isPattern":"false","id":"ncc_estimate","attributes":[{"name":"arrival","type":"string","value":"some_value"}]}],"updateAction":"UPDATE"}
请注意some_value
在回应中。在这种情况下,Orion 似乎正在正确处理请求。
EDIT:根据用户反馈,实体type
解决了问题。我们在其中强调它有关上下文提供者的文档:
您应该在查询/更新中包含实体类型,以便 ContextBroker 能够转发到上下文提供程序