Chilkat Online Tools

StartTopicsDetectionJob Java Example

Amazon Comprehend

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

    // URL: https://comprehend.us-west-2.amazonaws.com/
    // Use the same region as specified above.
    success = rest.Connect("comprehend.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("ClientRequestToken","string");
    json.UpdateString("DataAccessRoleArn","string");
    json.UpdateString("InputDataConfig.DocumentReaderConfig.DocumentReadAction","string");
    json.UpdateString("InputDataConfig.DocumentReaderConfig.DocumentReadMode","string");
    json.UpdateString("InputDataConfig.DocumentReaderConfig.FeatureTypes[0]","string");
    json.UpdateString("InputDataConfig.InputFormat","string");
    json.UpdateString("InputDataConfig.S3Uri","string");
    json.UpdateString("JobName","string");
    json.UpdateInt("NumberOfTopics",123);
    json.UpdateString("OutputDataConfig.KmsKeyId","string");
    json.UpdateString("OutputDataConfig.S3Uri","string");
    json.UpdateString("Tags[0].Key","string");
    json.UpdateString("Tags[0].Value","string");
    json.UpdateString("VolumeKmsKeyId","string");
    json.UpdateString("VpcConfig.SecurityGroupIds[0]","string");
    json.UpdateString("VpcConfig.Subnets[0]","string");

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

    // {
    //   "ClientRequestToken": "string",
    //   "DataAccessRoleArn": "string",
    //   "InputDataConfig": {
    //     "DocumentReaderConfig": {
    //       "DocumentReadAction": "string",
    //       "DocumentReadMode": "string",
    //       "FeatureTypes": [
    //         "string"
    //       ]
    //     },
    //     "InputFormat": "string",
    //     "S3Uri": "string"
    //   },
    //   "JobName": "string",
    //   "NumberOfTopics": number,
    //   "OutputDataConfig": {
    //     "KmsKeyId": "string",
    //     "S3Uri": "string"
    //   },
    //   "Tags": [
    //     {
    //       "Key": "string",
    //       "Value": "string"
    //     }
    //   ],
    //   "VolumeKmsKeyId": "string",
    //   "VpcConfig": {
    //     "SecurityGroupIds": [
    //       "string"
    //     ],
    //     "Subnets": [
    //       "string"
    //     ]
    //   }
    // }

    rest.AddHeader("Content-Type","application/x-amz-json-1.1");
    rest.AddHeader("X-Amz-Target","Comprehend_20171127.StartTopicsDetectionJob");

    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 JobArn = jResp.stringOf("JobArn");
    String JobId = jResp.stringOf("JobId");
    String JobStatus = jResp.stringOf("JobStatus");

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

    // {
    //   "JobArn": "string",
    //   "JobId": "string",
    //   "JobStatus": "string"
    // }
  }
}