j2me: How to parse a byte array into xml and then read and display specific data from that XML

Question

I'm consuming a ASP.NET Web API method that returns data in xml format. Everything was fine until I had to parse the byte array I got ,resulting from the openInputStream. Everyone says use this or that library,but unfortunately there isn't much info and the only decent example I found was from a deprecated library called KXML ,in which the author read a physical document (obviously not my case). Personally I wanted to use KXML2, but I this point I'm desperate and open to the very first solution that lets me read XML in the easiest possible way.

Here's is the code I use to consume the Web API method :

HttpConnection connection = null;
InputStream is = null;

final ByteArrayOutputStream bos = new ByteArrayOutputStream();

byte[] response = null;

try {
    connection = (HttpConnection)Connector.open("http://myminimarket/api/customers/GetCustomers", Connector.READ);
    connection.setRequestMethod(HttpConnection.GET);

    connection.setRequestProperty("User-Agent", "Profile/MIDP-2.0 Configuration/CLDC-1.1");

    if (connection.getResponseCode() == HttpConnection.HTTP_OK) {
        is = connection.openInputStream();

        if (is != null) {
            int ch = -1;

            while ((ch = is.read()) != -1) {
                bos.write(ch);
            }

            response = bos.toByteArray();
        }
    }
} catch (Exception e) {
    e.printStackTrace();
} finally {
    try {
        if (bos != null) {
            bos.close();            
        }

        if (is != null) {
            is.close();
            is = null;
        }

        if (connection != null) {
            connection.close();
            connection = null;
        }
    } catch (Exception e2) {
        e2.printStackTrace();
    }
}

And here's is a sample of XML result I got from the method GetCustomers:

<ArrayOfCustomer xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/WSWebAPI.Helpers">
<Customer>
<codigoCli>30</codigoCli>
<direccion>MCDO. SAN MARTIN PSTO. Nº 06</direccion>
<nroID>26626315</nroID>
<nroTelef>365548</nroTelef>
<razonSocial>ABANTO CASTAÑEDA, PAULA</razonSocial>
<tipoPersona>N</tipoPersona>
</Customer>
<codigoCli>61</codigoCli>
<direccion>
JR. SANTA TERESA DE JUORNET MZA. L. LOTE 11 (FRENTE AL QUINDE-COSTADO DE FARMACIA)
</direccion>
<nroID>10414741067</nroID>
<nroTelef/>
<razonSocial>ACUÑA SIFUENTES, ILZE SOLEDAD</razonSocial>
<tipoPersona>N</tipoPersona>
</Customer>
<Customer>
<codigoCli>69</codigoCli>
<direccion>JR. JOSE GALVEZ Nº 478</direccion>
<nroID>15586005</nroID>
<nroTelef/>
<razonSocial>AEDO YANQUI, MARGARITA</razonSocial>
<tipoPersona>N</tipoPersona>
</Customer>
<Customer>
<codigoCli>115</codigoCli>
<direccion>JR. AMALIA PUGA Nº 1008 TELEF. 367878</direccion>
<nroID>10266028356</nroID>
<nroTelef/>
<razonSocial>ALARCON ZEGARRA, EDULFO</razonSocial>
<tipoPersona>N</tipoPersona>
</Customer>

With these details, I would like to find a way to display something like this:

Customer # 1:

codigoCli: 30

direccion : MCDO. SAN MARTIN PSTO. Nº 06

nroID : 26626315

nroTelef: 365548

razonSocial: ABANTO CASTAÑEDA, PAULA

tipoPersona: N

---

Customer # 2:

.....

I really hope you can understand my situation, being a .net developer, it is really frustrating not finding much info on topic like this one.

Any assistance you can provide would be greatly appreciated.

Thanks in advance.

Answer 1

You can use setInput(new ByteArrayInputStream(response), null /null for autodetection, or specify proper encoding id string/) method to parse the xml response. Or what is the problem with kxml2 exactly?