サーバー監視サービスである「PRTG」というAPIを利用しています。デバイス上のすべてのセンサーを呼び出すと、Fiddler で次の応答が返されます。
{
"prtg-version": "14.2.10.2114",
"treesize": 6,
"sensors": [
{
"objid": 6277,
"probe": "Koneo Kalmar AB",
"group": "Koneo Kalmar home",
"device": "bl0615.systempartner.local",
"sensor": "Disk Space",
"status": "Up",
"status_raw": 3,
"message": "<div class=\"status\">OK<div class=\"moreicon\"></div></div>",
"message_raw": "OK",
"lastvalue": "21 %",
"lastvalue_raw": 21.0000,
"priority": 4,
"favorite": "<span class=\"objectisnotfavorite icon-gray ui-icon ui-icon-flag\" id=\"fav-6277\" onclick=\"_Prtg.objectTools.faveObject.call(this,6277,'toggle');return false;\"></span>",
"favorite_raw": 0
},
{
"objid": 6279,
"probe": "Koneo Kalmar AB",
"group": "Koneo Kalmar home",
"device": "bl0615.systempartner.local",
"sensor": "PING",
"status": "Up",
"status_raw": 3,
"message": "<div class=\"status\">OK<div class=\"moreicon\"></div></div>",
"message_raw": "OK",
"lastvalue": "0 msec",
"lastvalue_raw": 0.0000,
"priority": 5,
"favorite": "<span class=\"objectisnotfavorite icon-gray ui-icon ui-icon-flag\" id=\"fav-6279\" onclick=\"_Prtg.objectTools.faveObject.call(this,6279,'toggle');return false;\"></span>",
"favorite_raw": 0
},
{
"objid": 6280,
"probe": "Koneo Kalmar AB",
"group": "Koneo Kalmar home",
"device": "bl0615.systempartner.local",
"sensor": "DNS",
"status": "Up",
"status_raw": 3,
"message": "<div class=\"status\">OK: 127.0.0.1<div class=\"moreicon\"></div></div>",
"message_raw": "OK: 127.0.0.1",
"lastvalue": "0 msec",
"lastvalue_raw": 0.0000,
"priority": 3,
"favorite": "<span class=\"objectisnotfavorite icon-gray ui-icon ui-icon-flag\" id=\"fav-6280\" onclick=\"_Prtg.objectTools.faveObject.call(this,6280,'toggle');return false;\"></span>",
"favorite_raw": 0
},
{
"objid": 6799,
"probe": "Koneo Kalmar AB",
"group": "Koneo Kalmar home",
"device": "bl0615.systempartner.local",
"sensor": "Disk Free: C:\\ Label: Serial Number 34fe9d97", "status": "Up", "status_raw": 3,
"message": "<div class=\"status\">OK<div class=\"moreicon\"></div></div>",
"message_raw": "OK",
"lastvalue": "21 %",
"lastvalue_raw": 21.2458,
"priority": 3,
"favorite": "<span class=\"objectisnotfavorite icon-gray ui-icon ui-icon-flag\" id=\"fav-6799\" onclick=\"_Prtg.objectTools.faveObject.call(this,6799,'toggle');return false;\"></span>",
"favorite_raw": 0
},
{
"objid": 6800,
"probe": "Koneo Kalmar AB",
"group": "Koneo Kalmar home",
"device": "bl0615.systempartner.local",
"sensor": "Disk Free: D:\\ Label:DATA Serial Number 44bc0bc3", "status": "Up",
"status_raw": 3,
"message": "<div class=\"status\">OK<div class=\"moreicon\"></div></div>",
"message_raw": "OK",
"lastvalue": "49 %",
"lastvalue_raw": 49.4901,
"priority": 3,
"favorite": "<span class=\"objectisnotfavorite icon-gray ui-icon ui-icon-flag\" id=\"fav-6800\" onclick=\"_Prtg.objectTools.faveObject.call(this,6800,'toggle');return false;\"></span>",
"favorite_raw": 0
},
{
"objid": 6801,
"probe": "Koneo Kalmar AB",
"group": "Koneo Kalmar home",
"device": "bl0615.systempartner.local",
"sensor": "SNMP HP Proliant System Health 1", "status": "Warning", "status_raw": 4,
"message": "<div class=\"status\">Warning in Disk Controller Status: 'Degraded'<div class=\"moreicon\"></div></div>",
"message_raw": "Warning in Disk Controller Status: 'Degraded'",
"lastvalue": "2 #",
"lastvalue_raw": 2.0000,
"priority": 3,
"favorite": "<span class=\"objectisnotfavorite icon-gray ui-icon ui-icon-flag\" id=\"fav-6801\" onclick=\"_Prtg.objectTools.faveObject.call(this,6801,'toggle');return false;\"></span>",
"favorite_raw": 0
}
]
}
この応答に従うクラス構造を作成しようとしました。次のようになります。
public class BasePrtgSensors
{
[JsonProperty("prtg-version")]
public string PrtgVersion { get; set; }
[JsonProperty("sensors")]
public Dictionary<string, PrtgSensor> Sensors { get; set; }
[JsonProperty("treesize")]
public string TreeSize { get; set; }
}
public class PrtgSensor
{
[JsonProperty("objid")]
public string Id { get; set; }
[JsonProperty("probe")]
public string Probe { get; set; }
[JsonProperty("group")]
public string Group { get; set; }
[JsonProperty("device")]
public string Device { get; set; }
[JsonProperty("sensor")]
public string Sensor { get; set; }
[JsonProperty("status")]
public string Status { get; set; }
[JsonProperty("status_raw")]
public string StatusRaw { get; set; }
[JsonProperty("message")]
public string Message { get; set; }
[JsonProperty("message_raw")]
public string MessageRaw { get; set; }
[JsonProperty("lastvalue")]
public string LastValue { get; set; }
[JsonProperty("lastvalue_raw")]
public string LastValueRaw { get; set; }
[JsonProperty("priority")]
public string Priority { get; set; }
[JsonProperty("favorite")]
public string Favorite { get; set; }
[JsonProperty("favorite_raw")]
public string FavoriteRaw { get; set; }
}
私はこのコードを実行しています:
protected T Execute<T>(string urlSegment)
{
return JsonConvert.DeserializeObject<T>(Client().DownloadString(_baseUrl + '/' + urlSegment.TrimStart('/')));
}
これは、URL クエリを実行し、それを選択したクラス (BasePrtgSensors) に逆シリアル化しようとする、WebClient ラッパーにある基本メソッドです。実際の呼び出しは次のとおりです。
public BasePrtgSensors GetSensors(string id)
{
return Execute<BasePrtgSensors>(_resultType + _contentSensors + _output + _columnsSensors + "&id=" + id + _auth);
}
オブジェクトから得られるのは、呼び出し後に null と 0 の値だけです。クラス構造のどこかで失敗したと確信していますが、シリアライゼーションはまったく初めてで、応答がクラスにデシリアライズされない理由がわかりません。
ご指導いただきありがとうございます。