InputStream - SOAP

import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.io.Reader;
import java.io.StringWriter;
import java.io.Writer;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletInputStream;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;

/**
 *
 * @author Leo
 */
@WebFilter(filterName="NewFilter", urlPatterns={"/*"})
public class NewFilter implements Filter {

    private static final boolean debug = true;
    PrintWriter out;

    private FilterConfig filterConfig = null;

    } 

    public void doFilter(ServletRequest request, ServletResponse response,
                         FilterChain chain)
	throws IOException, ServletException {

	HttpServletRequest temp = (HttpServletRequest)request;
        ServletInputStream stream = temp.getInputStream();
        
        String cTL = convertStreamToString(stream);
        //fazer alguns tratamentos com o retorno ctl......e prosseguir	

        chain.doFilter(request, response);
	
    }

    public String convertStreamToString(InputStream is) throws IOException {
        String retorno = "";
        if (is != null) {
            Writer writer = new StringWriter();
            char[] buffer = new char[1024];

        try {
           Reader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
           int n;
           while((n = reader.read(buffer)) != -1) {
               writer.write(buffer, 0, n);
           }
        }catch(IOException e){
            e.printStackTrace();
        }
        
    retorno =  writer.toString();
    }
    return retorno;
    }

    }
}