Serialize an array of ints to send using KSOAP2

Question

I'm having a problem trying to send an array of ints to a .NET web service which expects an array in one of the arguments. That's at least what I understand from the API description on the web service which says this:

<dataIndexIDs>
<int>int</int>
<int>int</int> </dataIndexIDs>

So when I send a single int like below I do not get any errors and I think it works fine.

request.addProperty("dataIndexIDs", 63);

But when I try to send an array of ints:

request.addProperty("dataIndexIDs", new int[] {63, 62}); // array of ints

or a ArrayList of Integers:

ArrayList<Integer> indexes = new ArrayList<Integer>();
    indexes.add(63);
    indexes.add(62);
    request.addProperty("dataIndexIDs", indexes); // ArrayList of Integers

I get thrown a "java.lang.RuntimeException: Cannot serialize" exception. Any help please? What am I doing wrong? Thanks!

Cavalryman

I've got a feeling that actually even my single int attempt is not working properly, although not throwing exceptions because not just the datasource=63 is being returned. – Cavalryman

It's definitely an array of ints that it wants but it looks like KSOAP2 has problems serializing it. I though that ints and arrays were serializable by default. please help – Cavalryman

Honestly, noone can provide any help? :( – Cavalryman

Answer 1

It is a known issue with the KSOAP2 for Android library, which at the moment simply does not support arrays. The issue description is here:

http://code.google.com/p/ksoap2-android/issues/detail?id=19

A third-party patch, solution and an example can be found here:

http://people.unica.it/bart/ksoap2-patch/

I personally haven't tested any of them as they require also changing the web service WSDL but apparently they address the issue.

Cavalryman

That issue has long been fixed and recent releases support that behaviour although not using the linked patch since that never compiled using the ksaop2-android build and was never updated by the submitter. – Usn

Answer 2

I'm sending from an Android client to a .NET server, this worked for me

SoapObject myArrayParameter = new SoapObject(NAMESPACE, MY_ARRAY_PARAM_NAME);
for( int i : myArray ) {
    PropertyInfo p = new PropertyInfo();
    p.setNamespace("http://schemas.microsoft.com/2003/10/Serialization/Arrays");
    // use whatever type the server is expecting here (eg. "int")
    p.setName("short");
    p.setValue(i);
    myArrayParameter.addProperty(p);
}
request.addSoapObject(myArrayParameter);

Produces

 <classificationIds>
     <n4:short i:type="d:long" xmlns:n4="http://schemas.microsoft.com/2003/10/Serialization/Arrays">18</n4:short>
 </classificationIds>

Which looks terrible, but the server eats it anyway

Vehement

Answer 3

Here is nice example that might help you:

http://code.google.com/p/ksoap2-android/wiki/CodingTipsAndTricks

Here is my quick fix to this issue:

SoapSerializationEnvelope soapEnvelope = new SoapSerializationEnvelope(
            SoapEnvelope.VER11);

SoapObject Request = new SoapObject(NAMESPACE, METHOD_NAME);
soapEnvelope.setOutputSoapObject(Request);
soapEnvelope.dotNet = true;


List<Integer> companies =  new ArrayList<Integer>();
companies.add(65);
companies.add(66);
companies.add(67);

Request.addProperty("name", "test1");
SoapObject soapCompanies = new SoapObject(NAMESPACE, "companies");
for (Integer i : companies){
    soapCompanies.addProperty("int", i);
}
Request.addSoapObject(soapCompanies);

Output XML:

<n0:companies xmlns:n0 = "http://tempuri.org/">
            <int i:type = "d:int">65</int>
            <int i:type = "d:int">66</int>
            <int i:type = "d:int">67</int>
</n0:companies>
<name i:type = "d:string">test1</name>

Stomachic

Interesting. I will try this next time. Thanks for sharing! – Cavalryman

this line is given error that the method doesn't exists Request.addSoapObject(soapCompanies); I am using KSOAP2 – Bowman

Answer 4

Thanks Mindaugas. A slight edit to your answer worked for me:

SoapObject soapObj = new SoapObject(namespace, "ImageId");
        for (Integer i : image_id){
            soapObj.addProperty("int", i);
        }
        request_login.addProperty("ImageId", soapObj);

Tadich

Answer 5

Just pass parameter name and value like this in loop :

SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.setOutputSoapObject(request);
HttpTransportSE ht = new HttpTransportSE(URL);
for (int i=0; i<itemId.length; i++){
    request.addProperty("itemId",itemId[i]);
}
ht.call(SOAP_ACTION, envelope);

Just pass itemId as parameter name in loop and value in loop.

Acrimonious

Answer 6

For me this works passing the Array elements one by one in a loop

public List<Integer> intsEnvio;
for(int i: intsEnvio){
    request.addProperty("clases", i);
}

Doggett

Answer 7

For me this works

SoapObject soapCompanies = new SoapObject(NAMESPACE, "listcardIDs");
            for (int i=0;i<passed.getListCardIds().size()-1;i++) {
                soapCompanies.addProperty("int", passed.getListCardIds().get(i));
            }
            soapObject.addSoapObject(soapCompanies);
            //soapObject.addPropertyIfValue("listCardIDs", soapCompanies);
            soapObject.addProperty("userID", passed.getuserId());
            soapObject.addProperty("gender", passed.isgender());

Box

Welcome to SO. It's useful to add an explanation of how your code addresses the OP's question. – Appearance