Java

Azure Service Bus - Send Batch of Messages to Topic or Queue

See more Azure Service Bus Examples

Shows how to send a batch of messages to a service bus queue or topic. Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.JsonArray;
import com.chilkatsoft.chilkat2.JsonObject;
import com.chilkatsoft.chilkat2.Rest;
import com.chilkatsoft.chilkat2.StringBuilder;

public class ChilkatExample {

    public static void main(String[] args) {
        // Note: Requires Chilkat v9.5.0.65 or greater.

        // This requires the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        // Make the initial connection.
        // A single REST object, once connected, can be used for many Azure Service Bus REST API calls.
        // The auto-reconnect indicates that if the already-established HTTPS connection is closed,
        // then it will be automatically re-established as needed.
        Rest rest = new Rest();
        boolean bAutoReconnect = true;
        try {
            rest.connect("<yournamespace>.servicebus.windows.net", 443, true, bAutoReconnect);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // ----------------------------------------------------------------------------------------------
        // The code above this comment could be placed inside a function/subroutine within the application
        // because the connection does not need to be made for every request.  Once the connection is made
        // the app may send many requests..
        // ----------------------------------------------------------------------------------------------

        // Let's load a previously computed SAS token and use it.
        // See Azure Shared Access Signature for an example to genenerate an Azure SAS token.
        StringBuilder sbToken = new StringBuilder();
        sbToken.loadFile("qa_data/tokens/serviceBusSas.txt", "utf-8");

        // Tell the REST object to use the Azure Shared Access Signature for authorization.
        sbToken.prepend("SharedAccessSignature ");
        rest.addHeader("Authorization", sbToken.getAsString());

        // ----------------------------------------------------------------------------------------------

        // Send to a topic (or queue) named "gilaMonster";
        String topicOrQueueName = "gilaMonster";

        // The HTTP request body contains JSON that contains multiple messages.
        JsonObject json = new JsonObject();
        json.setI(0);
        json.updateString("messages[i].Body", "This is the first message");
        json.updateString("messages[i].BrokerProperties.Label", "M1");
        json.updateString("messages[i].BrokerProperties.TimeToLiveTimeSpan", "0.00:00:40");

        json.setI(1);
        json.updateString("messages[i].Body", "This is the second message");
        json.updateString("messages[i].BrokerProperties.Label", "M2");
        json.updateString("messages[i].UserProperties.Priority", "Low");

        json.setI(2);
        json.updateString("messages[i].Body", "This is the third message");
        json.updateString("messages[i].BrokerProperties.Label", "M3");
        json.updateString("messages[i].UserProperties.Priority", "Medium");
        json.updateString("messages[i].UserProperties.Customer", "ABC");

        JsonArray jsonA = json.arrayOf("messages");
        jsonA.setEmitCompact(false);
        System.out.println(jsonA.emit());

        // The following JSON array is produced by the above code:

        //     [
        //       {
        //         "Body": "This is the first message",
        //         "BrokerProperties": {
        //           "Label": "M1",
        //           "TimeToLiveTimeSpan": "0.00:00:40"
        //         }
        //       },
        //       {
        //         "Body": "This is the second message",
        //         "BrokerProperties": {
        //           "Label": "M2"
        //         },
        //         "UserProperties": {
        //           "Priority": "Low"
        //         }
        //       },
        //       {
        //         "Body": "This is the third message",
        //         "BrokerProperties": {
        //           "Label": "M3"
        //         },
        //         "UserProperties": {
        //           "Priority": "Medium",
        //           "Customer": "ABC"
        //         }
        //       }
        //     ]

        StringBuilder sbRequestBody = new StringBuilder();
        jsonA.setEmitCompact(true);
        jsonA.emitSb(sbRequestBody);
        jsonA.close();

        // Build the path..
        StringBuilder sbPath = new StringBuilder();
        sbPath.append("/");
        sbPath.append(topicOrQueueName);
        sbPath.append("/messages");

        // Add timeout and api-version query parameters.
        rest.addQueryParam("timeout", "20");

        // The Content-Type should be "application/vnd.microsoft.servicebus.json"
        rest.addHeader("Content-Type", "application/vnd.microsoft.servicebus.json");

        StringBuilder sbResponseBody = new StringBuilder();
        try {
            rest.fullRequestSb("POST", sbPath.getAsString(), sbRequestBody, sbResponseBody);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("Response Status Code = " + rest.getResponseStatusCode());

        // Check for a success response.
        if (rest.getResponseStatusCode() != 201) {
            System.out.println(rest.getLastRequestStartLine());
            System.out.println(rest.getLastRequestHeader());
            System.out.println(sbResponseBody.getAsString());
            System.out.println("Failed.");
            return;
        }

        // If successful, the 201 response will have no response body.

        System.out.println("Success.");
    }
}