Blackberry - How to consume wcf rest services - blackberry-eclipse-plugin

Question

Recently i have started working on consuming wcf rest webservices in blackberry.
I have used the below two codes:
1.
URLEncodedPostData postData = new URLEncodedPostData(URLEncodedPostData.DEFAULT_CHARSET, false);
// passing q’s value and ie’s value
postData.append("UserName", "hsharma#seasiaconsulting.com");
postData.append("Password", "mind#123");
HttpPosst hh=new HttpPosst();
add(new LabelField("1"));
String res=hh.GetResponse("http://dotnetstg.seasiaconsulting.com/profire/ProfireService.svc/UserRegistration",postData);
add(new LabelField("2"));
add(new LabelField(res));
public String GetResponse(String url, URLEncodedPostData data)
{
this._postData = data;
this._url = url;
ConnectionFactory conFactory = new ConnectionFactory();
ConnectionDescriptor conDesc = null;
try
{
if (WLANInfo.getWLANState() == WLANInfo.WLAN_STATE_CONNECTED)
{
connectionString = ";interface=wifi";
}
// Is the carrier network the only way to connect?
else if ((CoverageInfo.getCoverageStatus() & CoverageInfo.COVERAGE_DIRECT) == CoverageInfo.COVERAGE_DIRECT) {
// logMessage("Carrier coverage.");
// String carrierUid = getCarrierBIBSUid();
// Has carrier coverage, but not BIBS. So use the carrier's TCP
// network
// logMessage("No Uid");
connectionString = ";deviceside=true";
}
// Check for an MDS connection instead (BlackBerry Enterprise
// Server)
else if ((CoverageInfo.getCoverageStatus() & CoverageInfo.COVERAGE_MDS) == CoverageInfo.COVERAGE_MDS) {
// logMessage("MDS coverage found");
connectionString = ";deviceside=false";
}
// If there is no connection available abort to avoid bugging the
// user
// unnecssarily.
else if (CoverageInfo.getCoverageStatus() == CoverageInfo.COVERAGE_NONE)
{
// logMessage("There is no available connection.");
}
// In theory, all bases are covered so this shouldn't be reachable.
else {
// logMessage("no other options found, assuming device.");
// connectionString = ";deviceside=true";
}
conDesc = conFactory.getConnection(url + connectionString);
}
catch (Exception e)
{
System.out.println(e.toString() + ":" + e.getMessage());
}
String response = ""; // this variable used for the server response
// if we can get the connection descriptor from ConnectionFactory
if (null != conDesc)
{
try
{
HttpConnection connection = (HttpConnection) conDesc.getConnection();
// set the header property
connection.setRequestMethod(HttpConnection.POST);
connection.setRequestProperty("Content-Length",Integer.toString(data.size()));
// body content of
// post data
connection.setRequestProperty("Connection", "close");
// close
// the
// connection
// after
// success
// sending
// request
// and
// receiving
// response
// from
// the
// server
connection.setRequestProperty("Content-Type","application/json");
// we set the
// content of
// this request
// as
// application/x-www-form-urlencoded,
// because the
// post data is
// encoded as
// form-urlencoded(if
// you print the
// post data
// string, it
// will be like
// this ->
// q=remoQte&ie=UTF-8).
// now it is time to write the post data into OutputStream
OutputStream out = connection.openOutputStream();
out.write(data.getBytes());
out.flush();
out.close();
int responseCode = connection.getResponseCode();
// when this
// code is
// called,
// the post
// data
// request
// will be
// send to
// server,
// and after
// that we
// can read
// the
// response
// from the
// server if
// the
// response
// code is
// 200 (HTTP
// OK).
if (responseCode == HttpConnection.HTTP_OK)
{
// read the response from the server, if the response is
// ascii character, you can use this following code,
// otherwise, you must use array of byte instead of String
InputStream in = connection.openInputStream();
StringBuffer buf = new StringBuffer();
int read = -1;
while ((read = in.read()) != -1)
buf.append((char) read);
response = buf.toString();
}
// don’t forget to close the connection
connection.close();
}
catch (Exception e)
{
System.out.println(e.toString() + ":" + e.getMessage());
}
}
return response;
}
public boolean checkResponse(String res)
{
if(!res.equals(""))
{
if(res.charAt(0)=='{')
{
return true;
}
else
{
return false;
}
}
else
{
return false;
}
}
but with this code i am unable to obtain response as what the above wcf web service return
which is({"UserRegistrationResult":[{"OutputCode":"2","OutputDescription":"UserName Already Exists."}]})
Can anybody help me regarding its parsing in blackberry client end.
2.And the another code which i used is:
public class KSoapDemo extends MainScreen
{
private EditField userNametxt;
private PasswordEditField passwordTxt;
private ButtonField loginBtn;
String Username;
String Password;
public KSoapDemo()
{
userNametxt = new EditField("User Name : ", "hsharma#seasiaconsulting.com");
passwordTxt = new PasswordEditField("Password : ", "mind#123");
loginBtn = new ButtonField("Login");
add(userNametxt);
add(passwordTxt);
add(loginBtn);
loginBtn.setChangeListener(new FieldChangeListener()
{
public void fieldChanged(Field field, int context)
{
//Dialog.alert("Hi Satyaseshu..!");
login();
}
});
}
private void login()
{
if (userNametxt.getTextLength() == 0 || passwordTxt.getTextLength() == 0)
{
//Dialog.alert("You must enter a username and password", );
}
else
{
String username = userNametxt.getText();
String password = passwordTxt.getText();
System.out.println("UserName... " + username);
System.out.println("Password... " + password);
boolean value = loginPArse1(username, password);
add(new LabelField("value... " + value));
}
}
public boolean onClose()
{
Dialog.alert("ADIOOO!!");
System.exit(0);
return true;
}
public boolean loginPArse1(String username, String password)
{
username=this.Username;
password=this.Password;
boolean ans = false;
String result = null;
SoapObject request = new SoapObject("http://dotnetstg.seasiaconsulting.com/","UserRegistration");
//request.addProperty("PowerValue","1000");
//request.addProperty("fromPowerUnit","kilowatts");
//request.addProperty("toPowerUnit","megawatts");
request.addProperty("userName",Username);
request.addProperty("Password", Password);
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.bodyOut = request;
envelope.dotNet = true;
add(new LabelField("value... " + "1"));
HttpTransport ht = new HttpTransport("http://dotnetstg.seasiaconsulting.com/profire/ProfireService.svc/UserRegistration"+ConnectionInfo.getInstance().getConnectionParameters());
ht.debug = true;
add(new LabelField("value... " + "2"));
//System.out.println("connectionType is: " + connectionType);
try {
ht.call("http://dotnetstg.seasiaconsulting.com/profire/ProfireService.svc/UserRegistration", envelope);
SoapObject body = (SoapObject) envelope.bodyIn;
add(new LabelField("soap....="+body.toString()));
add(new LabelField("property count....="+body.getPropertyCount()));
// add(new LabelField("Result....="+body.getProperty("HelloWorldResult")));
//result = body.getProperty("Params").toString();
// add(new LabelField("value... " + "4"));
ans=true;
}
catch (XmlPullParserException ex) {
add(new LabelField("ex1 "+ex.toString()) );
ex.printStackTrace();
} catch (IOException ex) {
add(new LabelField("ex1 "+ex.toString()) );
ex.printStackTrace();
} catch (Exception ex) {
add(new LabelField("ex1 "+ex.toString()) );
ex.printStackTrace();
}
return ans;
}
and in return i am obtain response as net.rim.device.cldc.io.dns.DNS Exception:DNS Error
Please help me in this regard
Thanks And Regards
Pinkesh Gupta

Answer 1

Please have the answer for my own question helps in parsing wcf rest services developed in .net and parsed at blackberry end.
This 2 classess definitely helps in achieving the above code parsing.
import java.io.IOException;
import java.io.OutputStream;
import java.io.InputStream;
import javax.microedition.io.Connector;
import javax.microedition.io.HttpConnection;
public class ConnectionThread extends Thread
{
private boolean start = false;
private boolean stop = false;
private String url;
private String data;
public boolean sendResult = false;
public boolean sending = false;
private String requestMode = HttpConnection.POST;
public String responseContent;
int ch;
public void run()
{
while (true)
{
if (start == false && stop == false)
{
try
{
sleep(200);
}
catch (InterruptedException e)
{
e.printStackTrace();
}
}
else if (stop)
{
return;
}
else if (start)
{
http();
}
}
}
private void getResponseContent( HttpConnection conn ) throws IOException
{
InputStream is = null;
is = conn.openInputStream();
// Get the length and process the data
int len = (int) conn.getLength();
if ( len > 0 )
{
int actual = 0;
int bytesread = 0;
byte[] data = new byte[len];
while ( ( bytesread != len ) && ( actual != -1 ) )
{
actual = is.read( data, bytesread, len - bytesread );
bytesread += actual;
}
responseContent = new String (data);
}
else
{
// int ch;
while ( ( ch = is.read() ) != -1 )
{
}
}
}
private void http()
{
System.out.println( url );
HttpConnection conn = null;
OutputStream out = null;
int responseCode;
try
{
conn = (HttpConnection) Connector.open(url);
conn.setRequestMethod(requestMode);
conn.setRequestMethod(HttpConnection.POST);
conn.setRequestProperty("Content-Length",Integer.toString(data.length()));
conn.setRequestProperty("Connection", "close");
conn.setRequestProperty("Content-Type", "application/json");
conn.setRequestProperty("SOAPAction","http://dotnetstg.seasiaconsulting.com/");
out = conn.openOutputStream();
out.write(data.getBytes());
out.flush();
responseCode = conn.getResponseCode();
if (responseCode != HttpConnection.HTTP_OK)
{
sendResult = false;
responseContent = null;
}
else
{
sendResult = true;
getResponseContent( conn );
}
start = false;
sending = false;
}
catch (IOException e)
{
start = false;
sendResult = false;
sending = false;
}
}
public void get(String url)
{
this.url = url;
this.data = "";
requestMode = HttpConnection.GET;
sendResult = false;
sending = true;
start = true;
}
public void post(String url, String data)
{
this.url = url;
this.data = data;
requestMode = HttpConnection.POST;
sendResult = false;
sending = true;
start = true;
}
public void stop()
{
stop = true;
}
}
import net.rim.device.api.ui.Field;
import net.rim.device.api.ui.FieldChangeListener;
import net.rim.device.api.ui.component.AutoTextEditField;
import net.rim.device.api.ui.component.BasicEditField;
import net.rim.device.api.ui.component.ButtonField;
import net.rim.device.api.ui.component.DateField;
import net.rim.device.api.ui.component.LabelField;
import net.rim.device.api.ui.component.ObjectChoiceField;
import net.rim.device.api.ui.component.SeparatorField;
import net.rim.device.api.ui.component.Status;
import net.rim.device.api.ui.container.MainScreen;
import org.json.me.JSONArray;
import org.json.me.JSONException;
import org.json.me.JSONObject;
import org.xml.sax.SAXException;
import net.rim.device.api.xml.parsers.SAXParser;
import net.rim.device.api.xml.jaxp.SAXParserImpl;
import org.xml.sax.helpers.DefaultHandler;
import java.io.ByteArrayInputStream;
import com.sts.example.ConnectionThread;
import com.sts.example.ResponseHandler;
public class DemoScreen extends MainScreen
{
private ConnectionThread connThread;
private BasicEditField response = new BasicEditField("Response: ", "");
private BasicEditField xmlResponse = new BasicEditField("xml: ", "");
private ButtonField sendButton = new ButtonField("Response");
public DemoScreen(ConnectionThread connThread)
{
this.connThread = connThread;
FieldListener sendListener = new FieldListener();
sendButton.setChangeListener(sendListener);
response.setEditable( false );
xmlResponse.setEditable( false );
add(sendButton);
add(response);
add(new SeparatorField());
add(xmlResponse);
}
public boolean onClose()
{
connThread.stop();
close();
return true;
}
private String getFieldData()
{
//{"UserName":"hsharma#seasiaconsulting.com","Password":"mind#123"}
StringBuffer sb = new StringBuffer();
sb.append("{\"UserNamepinkesh.g#cisinlabs.com\",\"Password\":\"pinkesh1985\"}");
return sb.toString();
}
class FieldListener implements FieldChangeListener
{
public void fieldChanged(Field field, int context)
{
StringBuffer sb = new StringBuffer("Sending...");
connThread.post("http://dotnetstg.seasiaconsulting.com/profire/ProfireService.svc/UserRegistration"+ConnectionInfo.getInstance().getConnectionParameters(), getFieldData());
while (connThread.sending)
{
try
{
Status.show( sb.append(".").toString() );
Thread.sleep(100);
}
catch (InterruptedException e)
{
e.printStackTrace();
}
}
if (connThread.sendResult)
{
Status.show("Transmission Successfull");
xmlResponse.setText( connThread.responseContent );
try {
JSONObject jsonResponse = new JSONObject(connThread.responseContent);
JSONArray jsonArray = jsonResponse.getJSONArray("UserRegistrationResult");
for (int i = 0; i < jsonArray.length(); i++)
{
JSONObject result = (JSONObject)jsonArray.get(i);
add(new LabelField("OutputCode"+result.getString("OutputCode")));
add(new LabelField("OutputDescription"+result.getString("OutputDescription")));
}
}
catch (JSONException e)
{
add(new LabelField(e.getMessage().toString()));
e.printStackTrace();
}
}
else
{
Status.show("Transmission Failed");
}
}
}
}