VodafoneAPI.java

package com.vodafone.oauth;

import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;

import org.scribe.builder.ServiceBuilder;
import org.scribe.builder.api.Api20;
import org.scribe.utils.Preconditions;
import org.scribe.utils.URLUtils;

public class VodafoneAPI implements Api20
{
	private final String HOST = "http://api.developer.vodafone.com";

	@Override
	public String getAuthorizationUrl(ServiceBuilder service)
	{
		final String AUTHORIZE_URL = HOST+"/2/oauth/authorize?" +
				"client_id=%s&" +
				"redirect_uri=%s&" +
				"response_type=%s&" +
				"scope=%s";	
		Preconditions.checkValidUrl(service.getCallback(), "Must provide a valid url as callback.");
		String authCodeURL = String.format(AUTHORIZE_URL, service.getApiKey(), URLUtils.urlEncodeWrapper(service.getCallback()), 
				service.getResponseType(), service.getScope());
		
		InputStream is = null;
		try {			
			URL resourceUrl = new URL(authCodeURL);
			HttpURLConnection conn = (HttpURLConnection)resourceUrl.openConnection();
			conn.setConnectTimeout(15000);
			conn.setReadTimeout(15000);			
			conn.connect();
			is = conn.getInputStream();
			String res = conn.getURL().toString();
			if (res != null)
				return res;
		}
		catch (Exception e) {
			System.out.println("error happened: "+e.toString());
		}
		finally {
			if (is != null)
				try {
					is.close();
				} catch (IOException e) {
					e.printStackTrace();
				} 
		}
		
		return null;
	}

	@Override
	public String getAccessTokenUrl(ServiceBuilder service, String authCodeToken) {
		final String AUTHORIZE_URL = HOST+"/2/oauth/access_token?client_id=%s";		
		return String.format(AUTHORIZE_URL, service.getApiKey());
	}

}