(Java) Merge SP-API JSON Order Arrays

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Demonstrates how to merge JSON arrays for the case of Amazon SP-API orders.

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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[])
  {
    // Batch 1 File
    String a1 = "{\"payload\": {\"Orders\": [{\"AmazonOrderId\": \"1\",\"OrderStatus\": \"Unshipped\"},{\"AmazonOrderId\": \"2\",\"OrderStatus\": \"Unshipped\"}]}";

    // Batch 2 File
    String a2 = "{\"payload\": {\"Orders\": [{\"AmazonOrderId\": \"3\",\"OrderStatus\": \"Unshipped\"},{\"AmazonOrderId\": \"4\",\"OrderStatus\": \"Unshipped\"}]}";

    // Required Merged File
    // {"payload": {"Orders": [{"AmazonOrderId": "1","OrderStatus": "Unshipped"},{"AmazonOrderId": "2","OrderStatus": "Unshipped"},{"AmazonOrderId": "3","OrderStatus": "Unshipped"},{"AmazonOrderId": "4","OrderStatus": "Unshipped"}]}

    boolean success = true;
    CkJsonObject json1 = new CkJsonObject();
    json1.Load(a1);

    CkJsonObject json2 = new CkJsonObject();
    json2.Load(a2);

    // We're going to add the order records from json2 to json1.
    CkJsonArray jarr1 = json1.ArrayOf("payload.Orders");
    CkJsonArray jarr2 = json2.ArrayOf("payload.Orders");

    int i = 0;
    int numOrders = jarr2.get_Size();
    while ((i < numOrders)) {
        CkJsonObject jOrder = jarr2.ObjectAt(i);
        // Assuming non-null return...
        jarr1.AddObjectCopyAt(-1,jOrder);
        i = i+1;
        }

    // Show the merged JSON.
    json1.put_EmitCompact(false);
    System.out.println(json1.emit());

    // Result:

    // {
    //   "payload": {
    //     "Orders": [
    //       {
    //         "AmazonOrderId": "1",
    //         "OrderStatus": "Unshipped"
    //       },
    //       {
    //         "AmazonOrderId": "2",
    //         "OrderStatus": "Unshipped"
    //       },
    //       {
    //         "AmazonOrderId": "3",
    //         "OrderStatus": "Unshipped"
    //       },
    //       {
    //         "AmazonOrderId": "4",
    //         "OrderStatus": "Unshipped"
    //       }
    //     ]
    //   }
    // }
  }
}