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Následující verze 		Předchozí verze
cs:mervis-db:10-api [2017/07/13 17:20]
m.chlupac 		cs:mervis-db:10-api [2024/05/08 10:42] (aktuální)
Řádek 18: Řádek 18:
 ^DeleteVariables| | ^DeleteVariables| |
 ^DeleteData| | ^DeleteData| |
 +^ReplaceData|Delete data from time range and save one or multiple records from one or multiple variables in one API call|
 ^EnsureVariables| | ^EnsureVariables| |
-^GetTransformedData/GetTransformedDataAsync| |+^GetTransformedData/GetTransformedDataAsync|Method for reading of aggregated results with given time period, the aggregation may be Min, Max, Integral, Weighted average, First, Last and Median |
 ^GetServerVersion| | ^GetServerVersion| |
 ^GetVariableStats|Obsolete| ^GetVariableStats|Obsolete|
 ^GetVariableStatsAsync|Obsolete| ^GetVariableStatsAsync|Obsolete|
 ^CheckCredentials| | ^CheckCredentials| |
 +
 +===== Vlastnosti objektu =====
 +  * (UTC) Časová známka - UTC časová známka záznamu
 +  * Platnost do - UTC časová známka konce platnosti konkrétního záznamu
 +  * Interval - doba (v sekundách), kdy by měla být zaznamenána další hodnota
  
 ===== Příklady použití ===== ===== Příklady použití =====
Řádek 29: Řádek 35:
 ==== C# ==== ==== C# ====
  
-FIXME+{{ :en:mervis-db:mervis_db_csharp.png?direct&800 |}} 
 + 
 +=== Download === 
 + 
 + 
 +{{ :en:mervis-db:mervisdb_getdata_example.zip |}}\\ 
 +{{ :cs:mervis-db:mervisdb_savedata_example.zip |}} 
 + 
 +=== Kód === 
 + 
 + 
 +<code csharp MervisDB_GetData_Example.cs> 
 +using ESG.Core.Access.Client; 
 +using ESG.Db.Server.Shared; 
 +using ESG.Db.ServerAccess; 
 +using System; 
 +using System.Collections.Generic; 
 +using System.Linq; 
 +using System.Threading.Tasks; 
 + 
 +namespace DbClientTest 
 +{ 
 + class Program 
 + { 
 + static async Task Main(string[] args) 
 + { 
 + try 
 + { 
 + // 
 + // Create access to the real server. 
 + // Without SSL connections, you have to remove binding parameters "<security mode="Transport"/>" in the App.config. 
 + // The client is automatically generated from the WSDL file available here: https://kb.mervis.info/doku.php/en:mervis-db:10-api 
 + // 
 + using (HistoryDbAccessClient client = new HistoryDbAccessClient(HistoryDbAccessClient.EndpointConfiguration.HistoryAccess, "https://localhost:9876/RcWareDbAccess")) 
 + { 
 + // Authentication credetials in the database. 
 + Credentials credentials = new Credentials 
 + { 
 + Name = "XXXX", 
 + Password = "YYYY" 
 + }; 
 + 
 + // Specification of the variables through Key-Value. 
 + // Here we use 2 variables. 
 + ESG.Db.Server.Shared.KeyValuePair[][] keys = new ESG.Db.Server.Shared.KeyValuePair[][] { 
 + new ESG.Db.Server.Shared.KeyValuePair[] { 
 + new ESG.Db.Server.Shared.KeyValuePair(true, "DPGuid","338E2882-D72B-4D17-A241-73E8BC30F458"), 
 + new ESG.Db.Server.Shared.KeyValuePair(true, "StationName", "AAABBB") 
 + }, 
 +    new ESG.Db.Server.Shared.KeyValuePair[] { 
 + new ESG.Db.Server.Shared.KeyValuePair(true, "DPGuid", "CC80211D-3D29-4CC2-91A2-F69483D566B5"), 
 + new ESG.Db.Server.Shared.KeyValuePair(true, "StationName", "AAABBB") 
 + } 
 + }; 
 + 
 + // From-To dates. The dates must be specified in the UTC time zone. 
 + DateTime utcTo = DateTime.UtcNow; 
 + DateTime utcFrom = DateTime.UtcNow.AddDays(-1); 
 + 
 + // Retrieving the data goes through cycling of values and variables. The server returns recommended values needed for the the next cycle. 
 + int variableOffset = 0; // the offset of the variable 
 + int variableCount = 10; // maximal number of variables returned in one request 
 + int valueOffset; // the offset of the value 
 + int valueCount = 1000; // maximal values in on request 
 + 
 + Console.WriteLine("Reading values..."); 
 + 
 + do 
 + { 
 + valueOffset = 0; 
 + do 
 + { 
 + // Execute the request. 
 + var result = await client.GetDataAsyncAsync(credentials, keys, utcFrom, utcTo, variableOffset, variableCount, valueOffset, valueCount); 
 + 
 + // Check the return code. "0;OK" is what we want. 
 + if (!result.ReturnCode.StartsWith("0;")) 
 + { 
 + Console.WriteLine("Error on reading: {0}", result.ReturnCode); 
 + } 
 + 
 + // Cycle through the data and print it out. 
 + foreach (var valRecord in result.Data) 
 + { 
 + Console.WriteLine("Variable: {0}", String.Concat(valRecord.Keys.Select((i) => 
 + { 
 + return String.Format("{0}={1}; ", i.Key, i.Value); 
 + }))); 
 + 
 + foreach (var value in valRecord.Values) 
 + { 
 + Console.WriteLine("{0}->{1} [{2}] {3}", value.UtcTimeStamp, value.GoodThrough, value.HistoryValueType, value.DoubleValue /* Use value type according to the Hvt (History Value Type) */ ); 
 + } 
 + } 
 + 
 + valueOffset = result.NextValueOffset; 
 + variableOffset = result.NextVariableOffset; 
 + } 
 + while (valueOffset != -1); 
 + } 
 + while (variableOffset != -1); 
 + } 
 + 
 + } 
 + catch (Exception exc) 
 + { 
 + Console.WriteLine("Exception: {0}", exc.ToString()); 
 + } 
 + 
 + Console.WriteLine("DB communication finished"); 
 + 
 + Console.ReadLine(); 
 + } 
 + 
 + } 
 +}</code> 
 + 
 +<code csharp MervisDB_SaveData_Example.cs> 
 +using System; 
 +using System.Collections.Generic; 
 +using System.Threading.Tasks; 
 +using MervisDb_SaveData_Example.MervisDbService; 
 + 
 +namespace MervisDb_SaveData_Example 
 +{ 
 + class Program 
 + { 
 + static async Task Main(string[] args) 
 + { 
 + try 
 + { 
 + // 
 + // Create access to the real server. 
 + // Without SSL connections, you have to remove binding parameters "<security mode="Transport"/>" in the App.config. 
 + // The client is automatically generated from the WSDL file available here: https://kb.mervis.info/doku.php/en:mervis-db:10-api 
 + // 
 + using (HistoryDbAccessClient client = new HistoryDbAccessClient(HistoryDbAccessClient.EndpointConfiguration.HistoryAccess, "https://localhost:9876/RcWareDbAccess")) 
 + { 
 + // Authentication credetials in the database. 
 + Credentials credentials = new Credentials { Name = "XXXX", Password = "YYYY" }; 
 + 
 + // Adding records... 
 + List<ValueRecord> records = new List<ValueRecord>(); 
 + 
 + DateTime utcTimeStamp = new DateTime(2018, 1, 1, 12, 0, 0, DateTimeKind.Utc); 
 + 
 + // Each value is stored in a ValueRecord structure 
 + ValueRecord rec = new ValueRecord(); 
 + 
 + rec.UtcTimeStamp = utcTimeStamp;                // time stamp of the value, UTC date time must be used 
 + rec.HistoryValueType = HistoryValueType.Double; // type of the value 
 + rec.DoubleValue = 23.4;                         // value itself 
 + rec.Interval = 60.0;                            // sampling period in seconds. When the difference of timestamps of subsequent values if greater than 1.1 multiple of the interval, the data should be considered incomplete. 
 + rec.Keys = new ESG.Db.Server.Shared.KeyValuePair[] // identification of the variable. At least one key-value pair must be "IsKey" to identify a variable. 
 + { 
 + new ESG.Db.Server.Shared.KeyValuePair(true, "Root", "Building A"), 
 + new ESG.Db.Server.Shared.KeyValuePair(true, "Level1", "Floor 1"), 
 + new ESG.Db.Server.Shared.KeyValuePair(true, "Level2", "Room 7"), 
 + new ESG.Db.Server.Shared.KeyValuePair(true, "Level3", "Temperature"), 
 + new ESG.Db.Server.Shared.KeyValuePair(false, "Description", "Temperature in the room 7"), 
 + new ESG.Db.Server.Shared.KeyValuePair(false, "Unit", "°C"), 
 + }; 
 + 
 + records.Add(rec); 
 + 
 + // Save data method returns the number of stored records  
 + int recordsSaved = await client.SaveDataAsync(credentials, records.ToArray()); 
 + 
 + Console.WriteLine("Records saved: {0}", recordsSaved); 
 + } 
 + 
 + } 
 + catch (Exception exc) 
 + { 
 + Console.WriteLine("Exception: {0}", exc.ToString()); 
 + } 
 + 
 + Console.WriteLine("DB communication finished"); 
 + 
 + Console.ReadLine(); 
 + } 
 + } 
 +}</code> 
 + 
 + 
 + 
 + 
 +<code csharp MervisDb_ReplaceData_Example.cs> 
 +using ESG.Core.Access.Client; 
 +using ESG.Db.Server.Shared; 
 +using ESG.Db.ServerAccess; 
 +using System; 
 +using System.Collections.Generic; 
 + 
 +namespace DbClientTest 
 +{ 
 + class Program 
 + { 
 + static async Task Main(string[] args) 
 + { 
 + RcWareDbClient dbClient = new RcWareDbClient(false, "RcWareDbAccess", new Uri("http://localhost:9876/RcWareDbAccess")); 
 + dbClient.Credentials = new ESG.Db.Server.Shared.Credentials("xxxxxxx", "xxxxxxx"); 
 + 
 + DateTime utcNow = DateTime.UtcNow.Subtract(TimeSpan.FromMinutes(5)); 
 + 
 + ESG.Db.Server.Shared.KeyValuePair[] varKeysNew = new ESG.Db.Server.Shared.KeyValuePair[] 
 + { 
 + new ESG.Db.Server.Shared.KeyValuePair(true, "DPGuid", "51111111-1234-1234-1234-123456789012"), 
 + new ESG.Db.Server.Shared.KeyValuePair(true, "StationName", "db_replace_test") 
 + }; 
 + 
 + ESG.Db.Server.Shared.KeyValuePair[] varKeys1 = new ESG.Db.Server.Shared.KeyValuePair[] 
 + { 
 + new ESG.Db.Server.Shared.KeyValuePair(true, "DPGuid", "60ace716-5e1e-4cf8-ab05-947dce0caf77"), 
 + new ESG.Db.Server.Shared.KeyValuePair(true, "SoftPlcRtId", "db_replace_test") 
 + }; 
 + 
 + ESG.Db.Server.Shared.KeyValuePair[] varKeys = varKeys1; 
 + 
 + // generate some records 
 + List<ValueRecord> recsToSave = new List<ValueRecord>(); 
 + TimeSpan recsLength = TimeSpan.FromMinutes(2); 
 + int recsPerMinute = 4; 
 + 
 + Random r = new Random((int)DateTime.UtcNow.Ticks); 
 + double rBase = r.NextDouble() * 10; 
 + 
 + for (int i = 0; i < (recsLength.TotalSeconds / 60) * recsPerMinute; i++) 
 + { 
 + recsToSave.Add(new ValueRecord(utcNow - recsLength + TimeSpan.FromMinutes(i * (1.0 / recsPerMinute)), rBase + ((i % 2) + 1) * (-4))); 
 + recsToSave[recsToSave.Count - 1].Keys = varKeys; 
 + recsToSave[recsToSave.Count - 1].Interval = 60 / recsPerMinute; 
 + 
 + recsToSave.Add(new ValueRecord(utcNow - recsLength + TimeSpan.FromMinutes(i * (1.0 / recsPerMinute)), rBase + ((i % 2) + 1) * (-4))); 
 + recsToSave[recsToSave.Count - 1].Keys = varKeysNew; 
 + recsToSave[recsToSave.Count - 1].Interval = 60 / recsPerMinute; 
 + } 
 + 
 + var res = await dbClient.ReplaceDataAsync(new List<ESG.Db.Server.Shared.KeyValuePair[]> { varKeys }, utcNow.Subtract(recsLength), utcNow, recsToSave.ToArray()); 
 + } 
 + } 
 +} 
 +</code> 
 + 
 +<code csharp MervisDb_GetTransformedData_Example.cs> 
 +using System; 
 +using System.Linq; 
 +using System.Threading.Tasks; 
 +using MervisDb_GetTransformedData_Example.MervisDbService; 
 + 
 +namespace MervisDb_GetTransformedData_Example 
 +{ 
 + class Program 
 + { 
 + static async Task Main(string[] args) 
 + { 
 + // 
 + // Create access to the real server. 
 + // Without SSL connections, you have to remove binding parameters "<security mode="Transport"/>" in the App.config. 
 + // The client is automatically generated from the WSDL file available here: https://kb.mervis.info/doku.php/en:mervis-db:10-api 
 + // 
 + try 
 + { 
 + using (HistoryDbAccessClient client = new HistoryDbAccessClient(HistoryDbAccessClient.EndpointConfiguration.HistoryAccess, "http://localhost:9876/RcWareDbAccess")) 
 + { 
 + // Authentication credentials in the database. 
 + Credentials credentials = new Credentials { Name = "XXXXX", Password = "YYYYY" }; 
 + 
 + // Specification of the variables through Key-Value. 
 + // Here we use 2 variables. 
 + ESG.Db.Server.Shared.KeyValuePair[][] variableKeys = new ESG.Db.Server.Shared.KeyValuePair[][] { 
 + new ESG.Db.Server.Shared.KeyValuePair[] { 
 + new ESG.Db.Server.Shared.KeyValuePair (/*IsKeyId*/ false, /*Key*/ "DPGuid", /*Value*/ "338E2882-D72B-4D17-A241-73E8BC30F458"), 
 + new ESG.Db.Server.Shared.KeyValuePair (/*IsKeyId*/ false, /*Key*/ "StationName", /*Value*/ "AAABBB") 
 + }, 
 + new ESG.Db.Server.Shared.KeyValuePair[] { 
 + new ESG.Db.Server.Shared.KeyValuePair (/*IsKeyId*/ false, /*Key*/ "DPGuid", /*Value*/ "CC80211D-3D29-4CC2-91A2-F69483D566B5"), 
 + new ESG.Db.Server.Shared.KeyValuePair (/*IsKeyId*/ false, /*Key*/ "StationName", /*Value*/ "AAABBB") 
 + } 
 + }; 
 + 
 + // Aggregation request 
 + var aggregation = new AggregationRequest(); 
 + aggregation.Types = new AggregationType[] { AggregationType.Last }; 
 + aggregation.Interpolation = InterpolationType.None; 
 + //aggregation.MaxNeighborDistance = ..only for interpolation; 
 + aggregation.IsoPattern = new string[] { "PT15M" }; // 15 min period (ISO 8601 duration pattern) 
 + aggregation.From = new DateTime(2018, 11, 24, 0, 0, 0, 0, DateTimeKind.Unspecified); 
 + aggregation.To = new DateTime(2018, 11, 25, 0, 0, 0, 0, DateTimeKind.Unspecified); 
 + aggregation.TimeZone = @"Europe/Prague"; 
 + 
 + // Retrieving the data goes through cycling of intervals and variables. The server returns recommended intervals needed for the the next cycle. 
 + int variableOffset = 0; // the offset of the variable 
 + int variableCount = 10; // maximal number of variables returned in one request 
 + int intervalOffset;       // the offset of the interval 
 + int intervalCount = 1000; // maximal values in on request 
 + 
 + Console.WriteLine("Reading values..."); 
 + 
 + do 
 + { 
 + intervalOffset = 0; 
 + 
 + do 
 + { 
 + // Execute the request. 
 + var result = await client.GetTransformedDataAsyncAsync(credentials, aggregation, variableKeys, variableOffset, variableCount, intervalOffset, intervalCount); 
 + 
 + // Check the return code. "0;OK" is what we want. 
 + if (!result.ReturnCode.StartsWith("0;")) 
 + { 
 + Console.WriteLine("Error on reading: {0}", result.ReturnCode); 
 + } 
 + 
 + // Cycle through the data and print it out. 
 + if (result.Data != null) 
 + { 
 + foreach (VariableAggregate vag in result.Data) 
 + { 
 + Console.WriteLine("Variable: {0}", String.Concat(vag.Keys.Select((i) => { return String.Format("{0}={1}; ", i.Key, i.Value); }))); 
 + 
 + foreach (Interval value in vag.Data) 
 + { 
 + Console.Write(" {0}->{1} quality: {2:0.00} ", value.Begin, value.End, value.DataQuality); 
 + 
 + if (value.Last != null) 
 + { 
 + Console.Write(" Last Value: {0} (stamp {1}, origin {2})", value.Last.Value, value.Last.Stamp, value.Last.Origin); 
 + } 
 + 
 + Console.WriteLine(); 
 + } 
 + } 
 + } 
 + 
 + variableOffset = result.NextVariableOffset; 
 + intervalOffset = result.NextIntervalOffset; 
 + 
 + } while (intervalOffset != -1); 
 + 
 + } while (variableOffset != -1); 
 + } 
 + 
 + Console.WriteLine("DB communication is running in background"); 
 + 
 + } 
 + catch (Exception exc) 
 + { 
 + Console.WriteLine("Exception: {0}", exc.ToString()); 
 + } 
 + 
 + Console.WriteLine("DB communication finished"); 
 + 
 + Console.ReadLine(); 
 + } 
 + } 
 +} 
 +</code> 
  
 ==== Matlab ==== ==== Matlab ====
Řádek 49: Řádek 413:
 Pro komunikaci Matlabu s Mervis DB potřebujete nainstalovat toolbox:  Pro komunikaci Matlabu s Mervis DB potřebujete nainstalovat toolbox: 
   * {{ :en:mervis-db:mervisdb_matlabtoolbox.zip |}}.    * {{ :en:mervis-db:mervisdb_matlabtoolbox.zip |}}. 
-  * Zobrazení nápovědy ke každé z funkcí je možné: <code matlab>help MerbonDatabase.supported_function_name</code>+  * Zobrazení nápovědy ke každé z funkcí je možné: <code matlab>help MervisDatabse.supported_function_name</code>
  
 === Kód === === Kód ===
  
 <code matlab MervisDB_GetData_example.m>% Instance of Mervis DB  <code matlab MervisDB_GetData_example.m>% Instance of Mervis DB 
-mervisDB = MerbonDatabase('username', 'password', 'dbUrl');+mervisDB = MervisDatabase('username', 'password', 'dbUrl');
  
 % Time interval definition % Time interval definition
Řádek 68: Řádek 432:
             'StationName', 'YYYYYYY'}; % Keys definition of second variable             'StationName', 'YYYYYYY'}; % Keys definition of second variable
    
-variable1 = MerbonDbVariable(varKeys1); % Create MerbonDbVariable object from defined keys +variable1 = MervisDbVariable(varKeys1); % Create MervisDbVariable object from defined keys 
-variable2 = MerbonDbVariable(varKeys2);+variable2 = MervisDbVariable(varKeys2);
  
-arrayOfVarKeys = [variable1; variable2]; % array of MerbonDbVariables objects+arrayOfVarKeys = [variable1; variable2]; % array of MervisDbVariables objects
    
 % help for function getData % help for function getData
-help MerbonDatabase.getData +help MervisDatabase.getData 
  
 % Download required data % Download required data
Řádek 84: Řádek 448:
  
 ==== PHP ==== ==== PHP ====
 +
 +=== Kód ===
 +
  
 <code php MervisDB_GetData_example.php> <code php MervisDB_GetData_example.php>
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