Chilkat Online Tools

ListDatasets Java Example

AWS IoT Analytics

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("iotanalytics");
    // SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
    rest.SetAuthAws(authAws);

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

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

    CkStringBuilder sbResponseBody = new CkStringBuilder();
    success = rest.FullRequestNoBodySb("GET","/datasets",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

    int creationTime;
    String datasetName;
    int lastUpdateTime;
    String status;
    int j;
    int count_j;
    String actionName;
    String actionType;
    String Name;
    String Expression;

    String nextToken = jResp.stringOf("nextToken");
    int i = 0;
    int count_i = jResp.SizeOfArray("datasetSummaries");
    while (i < count_i) {
        jResp.put_I(i);
        creationTime = jResp.IntOf("datasetSummaries[i].creationTime");
        datasetName = jResp.stringOf("datasetSummaries[i].datasetName");
        lastUpdateTime = jResp.IntOf("datasetSummaries[i].lastUpdateTime");
        status = jResp.stringOf("datasetSummaries[i].status");
        j = 0;
        count_j = jResp.SizeOfArray("datasetSummaries[i].actions");
        while (j < count_j) {
            jResp.put_J(j);
            actionName = jResp.stringOf("datasetSummaries[i].actions[j].actionName");
            actionType = jResp.stringOf("datasetSummaries[i].actions[j].actionType");
            j = j+1;
            }

        j = 0;
        count_j = jResp.SizeOfArray("datasetSummaries[i].triggers");
        while (j < count_j) {
            jResp.put_J(j);
            Name = jResp.stringOf("datasetSummaries[i].triggers[j].dataset.name");
            Expression = jResp.stringOf("datasetSummaries[i].triggers[j].schedule.expression");
            j = j+1;
            }

        i = i+1;
        }

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

    // {
    //   "datasetSummaries": [
    //     {
    //       "actions": [
    //         {
    //           "actionName": "string",
    //           "actionType": "string"
    //         }
    //       ],
    //       "creationTime": number,
    //       "datasetName": "string",
    //       "lastUpdateTime": number,
    //       "status": "string",
    //       "triggers": [
    //         {
    //           "dataset": {
    //             "name": "string"
    //           },
    //           "schedule": {
    //             "expression": "string"
    //           }
    //         }
    //       ]
    //     }
    //   ],
    //   "nextToken": "string"
    // }
  }
}