egpi.tes.ahv.servicio.AutenticacionREST.java Source code

Introduction

Here is the source code for egpi.tes.ahv.servicio.AutenticacionREST.java

Source

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package egpi.tes.ahv.servicio;

import egpi.tes.ahv.valueobject.AutenticacionVO;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.methods.PostMethod;
import java.io.*;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.*;
import javax.servlet.http.*;
import net.sf.json.JSONObject;
import egpi.tes.ahv.util.ReporteJasperException;

/**
 *
 * @author AndresVilla
 */
public class AutenticacionREST extends HttpServlet {

    Properties properties;
    HttpClient client = null;
    JSONObject obj;
    int status;

    public void init() throws ServletException {

        try {
            cargarPropiedades();
            client = new HttpClient();
            status = 0;
            obj = new JSONObject();
        } catch (IOException ex) {
            Logger.getLogger(AutenticacionREST.class.getName()).log(Level.SEVERE, null, ex);
        } catch (ReporteJasperException ex) {
            Logger.getLogger(AutenticacionREST.class.getName()).log(Level.SEVERE, null, ex);
        }

    }

    public void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        try {

            HttpSession session = request.getSession(true);
            session.setAttribute("clientjasper", this.client);
            session.setAttribute("propiedadesjasper", this.properties);
            session.removeAttribute("authVO");

            autenticacionUsuarioGeneral();

            PrintWriter out = response.getWriter();
            out.println(obj);

        } catch (Exception e) {
            e.printStackTrace();
            procesarError(response, e);
        }

    }

    public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        try {

            AutenticacionVO authVO = new AutenticacionVO();
            authVO.setPassword(request.getParameter("pass"));
            authVO.setUsername(request.getParameter("user"));
            autenticacionUsuarioLogin(authVO);

            HttpSession session = request.getSession(true);
            session.setAttribute("clientjasper", this.client);
            session.setAttribute("propiedadesjasper", this.properties);
            session.setAttribute("authVO", authVO);

            PrintWriter out = response.getWriter();
            out.println(obj);

        } catch (Exception e) {
            e.printStackTrace();
            procesarError(response, e);
        }

    }

    /**
     * 
     * @throws IOException 
     */
    public void cargarPropiedades() throws IOException, ReporteJasperException {
        try {
            ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
            InputStream inputStream = classLoader.getResourceAsStream("/servidorreportes.properties");
            properties = new Properties();
            if (inputStream != null) {
                properties.load(inputStream);
            } else {
                throw new ReporteJasperException(
                        "Verifique que exista fichero /classes/servidorreportes.properties ");
            }

        } catch (Exception e) {
            e.printStackTrace();
            throw new ReporteJasperException(e.getMessage());
        }
    }

    /**
     * 
     * @return 
     */
    public void autenticacionUsuarioGeneral() throws ReporteJasperException {

        try {
            cargarPropiedades();
            if (properties != null) {
                if (properties.getProperty("urllogueo") != null && properties.getProperty("usuariopublico") != null
                        && properties.getProperty("password") != null) {
                    AutenticacionVO authVO = new AutenticacionVO();
                    authVO.setServerUrl(properties.getProperty("urllogueo"));
                    authVO.setUsername(properties.getProperty("usuariopublico"));
                    authVO.setPassword(properties.getProperty("password"));
                    procesasLogeoServidor(authVO);
                } else {
                    throw new ReporteJasperException(
                            "Parametros incompletos verifique fichero servidorreportes.properties ");
                }
            } else {
                throw new ReporteJasperException(
                        "Verifique que exista fichero /classes/servidorreportes.properties ");
            }

        } catch (Exception e) {
            e.printStackTrace();
            throw new ReporteJasperException(e.getMessage());
        }

    }

    /**
     * 
     * @param authVO
     * @return 
     */
    public void autenticacionUsuarioLogin(AutenticacionVO authVO) throws ReporteJasperException {

        try {

            if (properties != null && authVO != null) {
                if (properties.getProperty("urllogueo") != null && authVO.getUsername() != null
                        && authVO.getPassword() != null) {
                    authVO.setServerUrl(properties.getProperty("urllogueo"));
                    procesasLogeoServidor(authVO);
                } else {
                    throw new ReporteJasperException(
                            "Parametros incompletos verifique fichero servidorreportes.properties ");
                }
            } else {
                throw new ReporteJasperException(
                        "Verifique que exista fichero /classes/servidorreportes.properties ");
            }

        } catch (Exception e) {
            e.printStackTrace();
            throw new ReporteJasperException(e.getMessage());
        }

    }

    /**
     * 
     * @param authVO 
     */
    public void procesasLogeoServidor(AutenticacionVO authVO) throws ReporteJasperException {

        try {

            if (authVO != null) {

                PostMethod postMethod = new PostMethod(authVO.getServerUrl());
                postMethod.addParameter("j_username", authVO.getUsername());
                postMethod.addParameter("j_password", authVO.getPassword());
                status = client.executeMethod(postMethod);

                System.out.println("status 00 " + status);
                if (status == 200) {
                    obj.put("status", String.valueOf(status));
                } else {
                    throw new ReporteJasperException(this.properties.getProperty("msg_" + String.valueOf(status)));
                }

            }
        } catch (Exception e) {
            e.printStackTrace();
            throw new ReporteJasperException(e.getMessage());
        }

    }

    public void procesarError(HttpServletResponse response, Exception e) {
        System.out.println("\n\nprocesarError=" + e.getMessage() + "\n\n");
        try {
            if (status == 0) {
                response.sendError(500, e.getMessage());
            } else {
                response.sendError(status, e.getMessage());
            }
        } catch (IOException ex) {
            Logger.getLogger(AutenticacionREST.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

}