ar.edu.ubp.das.src.chat.actions.SalasJoinAction.java Source code

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Here is the source code for ar.edu.ubp.das.src.chat.actions.SalasJoinAction.java

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package ar.edu.ubp.das.src.chat.actions;

import ar.edu.ubp.das.mvc.action.Action;
import ar.edu.ubp.das.mvc.action.ActionMapping;
import ar.edu.ubp.das.mvc.action.DynaActionForm;
import ar.edu.ubp.das.mvc.beans.LoginTempBean;
import ar.edu.ubp.das.mvc.beans.SalaBean;
import ar.edu.ubp.das.mvc.config.ForwardConfig;
import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;
import java.io.IOException;
import java.lang.reflect.Type;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.StatusLine;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

/**
 *
 * @author Jav
 */
public class SalasJoinAction implements Action {

    @Override
    public ForwardConfig execute(ActionMapping mapping, DynaActionForm form, HttpServletRequest request,
            HttpServletResponse response) throws SQLException, RuntimeException {
        try (CloseableHttpClient httpClient = HttpClientBuilder.create().build()) {

            //get user data from session storage
            Gson gson = new Gson();
            Type usuarioType = new TypeToken<LoginTempBean>() {
            }.getType();
            String sessUser = String.valueOf(request.getSession().getAttribute("user"));
            LoginTempBean user = gson.fromJson(sessUser, usuarioType);

            //prepare http post
            HttpPost httpPost = new HttpPost("http://25.136.78.82:8080/usuarios-salas/");
            List<NameValuePair> params = new ArrayList<>();
            params.add(new BasicNameValuePair("id_usuario", user.getId()));
            params.add(new BasicNameValuePair("id_sala", form.getItem("id_sala")));
            httpPost.setEntity(new UrlEncodedFormEntity(params));
            httpPost.addHeader("Authorization", "BEARER " + request.getSession().getAttribute("token"));
            httpPost.addHeader("accept", "application/json");

            CloseableHttpResponse postResponse = httpClient.execute(httpPost);

            HttpEntity responseEntity = postResponse.getEntity();
            StatusLine responseStatus = postResponse.getStatusLine();
            String restResp = EntityUtils.toString(responseEntity);

            if (responseStatus.getStatusCode() != 200) {
                throw new RuntimeException(restResp);
            }

            //get user data from session storage
            String salas = String.valueOf(request.getSession().getAttribute("salas"));
            List<SalaBean> salaList = gson.fromJson(salas, new TypeToken<List<SalaBean>>() {
            }.getType());
            SalaBean actual = salaList.stream().filter(s -> s.getId() == Integer.parseInt(form.getItem("id_sala")))
                    .collect(Collectors.toList()).get(0);

            request.getSession().setAttribute("sala", actual);
            request.getSession().setAttribute("ultima_actualizacion", String.valueOf(System.currentTimeMillis()));

            return mapping.getForwardByName("success");

        } catch (IOException | RuntimeException e) {
            request.setAttribute("message", "Error al intentar ingresar a Sala: " + e.getMessage());
            response.setStatus(400);
            return mapping.getForwardByName("failure");
        }
    }

}