Example usage for javax.servlet.http HttpServletResponse setContentType

Introduction

In this page you can find the example usage for javax.servlet.http HttpServletResponse setContentType.

Prototype

public void setContentType(String type);

Source Link

Document

Sets the content type of the response being sent to the client, if the response has not been committed yet.

Usage

From source file:org.duracloud.duradmin.util.SpaceUtil.java

public static void streamToResponse(InputStream is, HttpServletResponse response, String mimetype,
        String contentLength) throws ContentStoreException, IOException {

    OutputStream outStream = response.getOutputStream();

    try {// w w w  .j ava 2 s .  c  om
        response.setContentType(mimetype);

        if (contentLength != null) {
            response.setContentLengthLong(Long.parseLong(contentLength));
        }
        byte[] buf = new byte[1024];
        int read = -1;
        while ((read = is.read(buf)) > 0) {
            outStream.write(buf, 0, read);
        }

        response.flushBuffer();
    } catch (Exception ex) {
        if (ex.getCause() instanceof ContentStateException) {
            response.reset();
            response.setStatus(HttpStatus.SC_CONFLICT);
            String message = "The requested content item is currently in long-term storage"
                    + " with limited retrieval capability. Please contact "
                    + "DuraCloud support (https://wiki.duraspace.org/x/6gPNAQ) "
                    + "for assistance in retrieving this content item.";
            //It is necessary to pad the message in order to force Internet Explorer to
            //display the server sent text rather than display the browser default error message.
            //If the message is less than 512 bytes, the browser will ignore the message.
            //c.f. http://support.microsoft.com/kb/294807
            message += StringUtils.repeat(" ", 512);
            outStream.write(message.getBytes());
        } else {
            throw ex;
        }
    } finally {
        try {
            outStream.close();
        } catch (Exception e) {
            log.warn("failed to close outputstream ( " + outStream + "): message=" + e.getMessage(), e);
        }
    }
}

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From source file:nl.dtls.fairdatapoint.api.controller.utils.HttpHeadersUtils.java

/**
 * Set response header for the internal server errors
 * //from  w  w  w. j a  v a 2 s. co  m
 * @param response  Http response
 * @param ex    Server exception
 * @return returns null (as a response body)
 */
public static String set500ResponseHeaders(HttpServletResponse response, Exception ex) {
    String errorMessage = ("Internal server error; Error message : " + ex.getMessage());
    response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
    try {
        response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, errorMessage);
    } catch (IOException ex1) {
        LOGGER.warn(
                "Error setting error message for internal server " + "error; The error : " + ex1.getMessage());
    }
    response.setContentType(MediaType.TEXT_PLAIN_VALUE);
    return null;
}

---

From source file:co.edu.UNal.ArquitecturaDeSoftware.Bienestar.Vista.App.Admin.CUDEventos.java

protected static void consultarUsuariosEnTallerId(HttpServletRequest request, HttpServletResponse response)
        throws IOException {
    ArrayList<UsuarioEntity> usuarios = new ArrayList<>();
    usuarios = CtrlAdmin.obtenerUsuariosEnTaller(Integer.parseInt(request.getParameter("3")),
            Integer.parseInt(request.getParameter("2")), Integer.parseInt(request.getParameter("1")));

    response.setContentType("application/json;charset=UTF-8");
    PrintWriter out = response.getWriter();

    JSONArray list1 = new JSONArray();
    for (UsuarioEntity usuario : usuarios) {
        JSONObject obj = new JSONObject();
        obj.put("id", usuario.getIdUsuario());
        obj.put("titulo", usuario.getNombres() + " " + usuario.getApellidos());
        list1.add(obj);// ww w  .  j  a va  2  s . co  m
    }
    out.print(list1);
}

---

From source file:co.edu.UNal.ArquitecturaDeSoftware.Bienestar.Vista.App.Admin.CUDEventos.java

protected static void consultarDocentesEnTallerId(HttpServletRequest request, HttpServletResponse response)
        throws IOException {
    ArrayList<UsuarioEntity> usuarios = new ArrayList<>();
    usuarios = CtrlAdmin.obtenerUsuariosEnTaller(Integer.parseInt(request.getParameter("1")),
            Integer.parseInt(request.getParameter("2")), Integer.parseInt(request.getParameter("3")));

    response.setContentType("application/json;charset=UTF-8");
    PrintWriter out = response.getWriter();

    JSONArray list1 = new JSONArray();
    for (UsuarioEntity usuario : usuarios) {
        JSONObject obj = new JSONObject();
        obj.put("id", usuario.getIdUsuario());
        obj.put("titulo", usuario.getNombres() + " " + usuario.getApellidos());
        list1.add(obj);/*  w w  w .j a v a2s.  co m*/
    }
    out.print(list1);
}

---

From source file:ch.ralscha.extdirectspring.util.ExtDirectSpringUtil.java

/**
 * Checks etag and sends back HTTP status 304 if not modified. If modified sets
 * content type and content length, adds cache headers (
 * {@link #addCacheHeaders(HttpServletResponse, String, Integer)}), writes the data
 * into the {@link HttpServletResponse#getOutputStream()} and flushes it.
 *
 * @param request the HTTP servlet request
 * @param response the HTTP servlet response
 * @param data the response data/*from ww  w.  j  ava 2  s  . c  om*/
 * @param contentType the content type of the data (i.e.
 * "application/javascript;charset=UTF-8")
 * @throws IOException
 */
public static void handleCacheableResponse(HttpServletRequest request, HttpServletResponse response,
        byte[] data, String contentType) throws IOException {
    String ifNoneMatch = request.getHeader("If-None-Match");
    String etag = "\"0" + DigestUtils.md5DigestAsHex(data) + "\"";

    if (etag.equals(ifNoneMatch)) {
        response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
        return;
    }

    response.setContentType(contentType);
    response.setContentLength(data.length);

    addCacheHeaders(response, etag, 6);

    @SuppressWarnings("resource")
    ServletOutputStream out = response.getOutputStream();
    out.write(data);
    out.flush();
}

---

From source file:co.edu.UNal.ArquitecturaDeSoftware.Bienestar.Vista.App.Usuario.Read.java

protected static void quitarDocenteTaller(HttpServletRequest request, HttpServletResponse response)
        throws IOException {
    ArrayList r = CtrlUsuario.abandonarTallerDocente(Integer.parseInt(request.getParameter("1")),
            Integer.parseInt(request.getParameter("2"))); //1. idUsuario, 2. idEvento

    response.setContentType("application/json;charset=UTF-8");
    PrintWriter out = response.getWriter();
    if (r.get(0) == "error") {
        JSONObject obj = new JSONObject();
        obj.put("isError", true);
        obj.put("errorDescrip", r.get(1));
        out.print(obj);/*w  ww.j  a  v  a2s  . c o m*/
    } else if (r.get(0) == "isExitoso") {
        JSONObject obj = new JSONObject();
        obj.put("Exitoso", true);
        out.print(obj);
    } else {
        Util.errordeRespuesta(r, out);
    }
}

---

From source file:co.edu.UNal.ArquitecturaDeSoftware.Bienestar.Vista.App.Usuario.Read.java

protected static void quitarUsuarioTaller(HttpServletRequest request, HttpServletResponse response)
        throws IOException {
    ArrayList r = CtrlUsuario.abandonarTallerUsuario(Integer.parseInt(request.getParameter("1")),
            Integer.parseInt(request.getParameter("2"))); //1. idUsuario, 2. idEvento

    response.setContentType("application/json;charset=UTF-8");
    PrintWriter out = response.getWriter();
    if (r.get(0) == "error") {
        JSONObject obj = new JSONObject();
        obj.put("isError", true);
        obj.put("errorDescrip", r.get(1));
        out.print(obj);//w w  w.  j  a  v  a 2s  . c  om
    } else if (r.get(0) == "isExitoso") {
        JSONObject obj = new JSONObject();
        obj.put("Exitoso", true);
        out.print(obj);
    } else {
        Util.errordeRespuesta(r, out);
    }
}

---

From source file:co.edu.UNal.ArquitecturaDeSoftware.Bienestar.Vista.App.Admin.CUDEventos.java

protected static void crearConvocatoria(HttpServletRequest request, HttpServletResponse response)
        throws IOException {
    ArrayList r = CtrlAdmin.crearConvocatoria(request.getParameter("1"), // nombre
            request.getParameter("2"), // descripcin
            request.getParameter("4"), // fin
            Integer.parseInt(request.getParameter("6")) // cupos
    );// w w  w. ja v  a 2  s .co m

    response.setContentType("application/json;charset=UTF-8");
    PrintWriter out = response.getWriter();
    if (r.get(0) == "error") {
        JSONObject obj = new JSONObject();
        obj.put("isError", true);
        obj.put("errorDescrip", r.get(1));
        out.print(obj);
    } else if (r.get(0) == "isExitoso") {
        JSONObject obj = new JSONObject();
        obj.put("Exitoso", true);
        out.print(obj);
    } else
        Util.errordeRespuesta(r, out);
}

---

From source file:co.edu.UNal.ArquitecturaDeSoftware.Bienestar.Vista.App.Usuario.Read.java

protected static void registrarATallerDocenteByDoc(HttpServletRequest request, HttpServletResponse response)
        throws IOException {
    ArrayList r = CtrlUsuario.registrarATallerDocenteByDoc(request.getParameter("1"),
            Integer.parseInt(request.getParameter("2"))); // parameter 1: documentoDocente param2: idTaller

    response.setContentType("application/json;charset=UTF-8");
    PrintWriter out = response.getWriter();
    if (r.get(0) == "error") {
        JSONObject obj = new JSONObject();
        obj.put("isError", true);
        obj.put("errorDescrip", r.get(1));
        out.print(obj);//  w  ww. j a v a  2s  .co  m
    } else if (r.get(0) == "isExitoso") {
        JSONObject obj = new JSONObject();
        obj.put("Exitoso", true);
        out.print(obj);
    } else {
        Util.errordeRespuesta(r, out);
    }
}

---

From source file:co.edu.UNal.ArquitecturaDeSoftware.Bienestar.Vista.App.Usuario.Read.java

protected static void quitarUsuarioConvocatoria(HttpServletRequest request, HttpServletResponse response)
        throws IOException {
    ArrayList r = CtrlUsuario.abandonarConvocatoria(Integer.parseInt(request.getParameter("1")), //1. idUsuario
            Integer.parseInt(request.getParameter("2"))// 2. idEvento
    );/*from w w  w.ja  va 2 s . com*/

    response.setContentType("application/json;charset=UTF-8");
    PrintWriter out = response.getWriter();
    if (r.get(0) == "error") {
        JSONObject obj = new JSONObject();
        obj.put("isError", true);
        obj.put("errorDescrip", r.get(1));
        out.print(obj);
    } else if (r.get(0) == "isExitoso") {
        JSONObject obj = new JSONObject();
        obj.put("Exitoso", true);
        out.print(obj);
    } else {
        Util.errordeRespuesta(r, out);
    }
}

---

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