Chilkat Online Tools

GetQueryExecution Java Example

Athena

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkRest rest = new CkRest();
    boolean success;

    CkAuthAws authAws = new CkAuthAws();
    authAws.put_AccessKey("AWS_ACCESS_KEY");
    authAws.put_SecretKey("AWS_SECRET_KEY");

    // Don't forget to change the region to your particular region. (Also make the same change in the call to Connect below.)
    authAws.put_Region("us-west-2");
    authAws.put_ServiceName("athena");
    // SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
    rest.SetAuthAws(authAws);

    // URL: https://athena.us-west-2.amazonaws.com/
    // Use the same region as specified above.
    success = rest.Connect("athena.us-west-2.amazonaws.com",443,true,true);
    if (success != true) {
        System.out.println("ConnectFailReason: " + rest.get_ConnectFailReason());
        System.out.println(rest.lastErrorText());
        return;
        }

    // The following code creates the JSON request body.
    // The JSON created by this code is shown below.

    // Use this online tool to generate code from sample JSON:
    // Generate Code to Create JSON

    CkJsonObject json = new CkJsonObject();
    json.UpdateString("QueryExecutionId","string");

    // The JSON request body created by the above code:

    // {
    //   "QueryExecutionId": "string"
    // }

    rest.AddHeader("Content-Type","application/x-amz-json-1.1");
    rest.AddHeader("X-Amz-Target","AmazonAthena.GetQueryExecution");

    CkStringBuilder sbRequestBody = new CkStringBuilder();
    json.EmitSb(sbRequestBody);
    CkStringBuilder sbResponseBody = new CkStringBuilder();
    success = rest.FullRequestSb("POST","/",sbRequestBody,sbResponseBody);
    if (success != true) {
        System.out.println(rest.lastErrorText());
        return;
        }

    int respStatusCode = rest.get_ResponseStatusCode();
    System.out.println("response status code = " + respStatusCode);
    if (respStatusCode != 200) {
        System.out.println("Response Header:");
        System.out.println(rest.responseHeader());
        System.out.println("Response Body:");
        System.out.println(sbResponseBody.getAsString());
        return;
        }

    CkJsonObject jResp = new CkJsonObject();
    jResp.LoadSb(sbResponseBody);

    // The following code parses the JSON response.
    // A sample JSON response is shown below the sample code.

    // Use this online tool to generate parsing code from sample JSON:
    // Generate Parsing Code from JSON

    String EffectiveEngineVersion = jResp.stringOf("QueryExecution.EngineVersion.EffectiveEngineVersion");
    String SelectedEngineVersion = jResp.stringOf("QueryExecution.EngineVersion.SelectedEngineVersion");
    String Query = jResp.stringOf("QueryExecution.Query");
    String Catalog = jResp.stringOf("QueryExecution.QueryExecutionContext.Catalog");
    String Database = jResp.stringOf("QueryExecution.QueryExecutionContext.Database");
    String QueryExecutionId = jResp.stringOf("QueryExecution.QueryExecutionId");
    String S3AclOption = jResp.stringOf("QueryExecution.ResultConfiguration.AclConfiguration.S3AclOption");
    String EncryptionOption = jResp.stringOf("QueryExecution.ResultConfiguration.EncryptionConfiguration.EncryptionOption");
    String KmsKey = jResp.stringOf("QueryExecution.ResultConfiguration.EncryptionConfiguration.KmsKey");
    String ExpectedBucketOwner = jResp.stringOf("QueryExecution.ResultConfiguration.ExpectedBucketOwner");
    String OutputLocation = jResp.stringOf("QueryExecution.ResultConfiguration.OutputLocation");
    String StatementType = jResp.stringOf("QueryExecution.StatementType");
    String DataManifestLocation = jResp.stringOf("QueryExecution.Statistics.DataManifestLocation");
    int DataScannedInBytes = jResp.IntOf("QueryExecution.Statistics.DataScannedInBytes");
    int EngineExecutionTimeInMillis = jResp.IntOf("QueryExecution.Statistics.EngineExecutionTimeInMillis");
    int QueryPlanningTimeInMillis = jResp.IntOf("QueryExecution.Statistics.QueryPlanningTimeInMillis");
    int QueryQueueTimeInMillis = jResp.IntOf("QueryExecution.Statistics.QueryQueueTimeInMillis");
    int ServiceProcessingTimeInMillis = jResp.IntOf("QueryExecution.Statistics.ServiceProcessingTimeInMillis");
    int TotalExecutionTimeInMillis = jResp.IntOf("QueryExecution.Statistics.TotalExecutionTimeInMillis");
    int ErrorCategory = jResp.IntOf("QueryExecution.Status.AthenaError.ErrorCategory");
    String ErrorMessage = jResp.stringOf("QueryExecution.Status.AthenaError.ErrorMessage");
    int ErrorType = jResp.IntOf("QueryExecution.Status.AthenaError.ErrorType");
    int Retryable = jResp.IntOf("QueryExecution.Status.AthenaError.Retryable");
    int CompletionDateTime = jResp.IntOf("QueryExecution.Status.CompletionDateTime");
    String State = jResp.stringOf("QueryExecution.Status.State");
    String StateChangeReason = jResp.stringOf("QueryExecution.Status.StateChangeReason");
    int SubmissionDateTime = jResp.IntOf("QueryExecution.Status.SubmissionDateTime");
    String WorkGroup = jResp.stringOf("QueryExecution.WorkGroup");

    // A sample JSON response body parsed by the above code:

    // {
    //   "QueryExecution": {
    //     "EngineVersion": {
    //       "EffectiveEngineVersion": "string",
    //       "SelectedEngineVersion": "string"
    //     },
    //     "Query": "string",
    //     "QueryExecutionContext": {
    //       "Catalog": "string",
    //       "Database": "string"
    //     },
    //     "QueryExecutionId": "string",
    //     "ResultConfiguration": {
    //       "AclConfiguration": {
    //         "S3AclOption": "string"
    //       },
    //       "EncryptionConfiguration": {
    //         "EncryptionOption": "string",
    //         "KmsKey": "string"
    //       },
    //       "ExpectedBucketOwner": "string",
    //       "OutputLocation": "string"
    //     },
    //     "StatementType": "string",
    //     "Statistics": {
    //       "DataManifestLocation": "string",
    //       "DataScannedInBytes": number,
    //       "EngineExecutionTimeInMillis": number,
    //       "QueryPlanningTimeInMillis": number,
    //       "QueryQueueTimeInMillis": number,
    //       "ServiceProcessingTimeInMillis": number,
    //       "TotalExecutionTimeInMillis": number
    //     },
    //     "Status": {
    //       "AthenaError": {
    //         "ErrorCategory": number,
    //         "ErrorMessage": "string",
    //         "ErrorType": number,
    //         "Retryable": boolean
    //       },
    //       "CompletionDateTime": number,
    //       "State": "string",
    //       "StateChangeReason": "string",
    //       "SubmissionDateTime": number
    //     },
    //     "WorkGroup": "string"
    //   }
    // }
  }
}