@Override
public void handleResourceRequest(FacesContext context) throws IOException {
Resource resource = createResource(context);
if (resource == null) {
super.handleResourceRequest(context);
return;
}
ExternalContext externalContext = context.getExternalContext();
if (!resource.userAgentNeedsUpdate(context)) {
externalContext.setResponseStatus(SC_NOT_MODIFIED);
return;
}
InputStream inputStream = resource.getInputStream();
if (inputStream == null) {
externalContext.setResponseStatus(SC_NOT_FOUND);
return;
}
externalContext.setResponseContentType(resource.getContentType());
for (Entry<String, String> header : resource.getResponseHeaders().entrySet()) {
externalContext.setResponseHeader(header.getKey(), header.getValue());
}
stream(inputStream, externalContext.getResponseOutputStream());
}
public DelayedInitPartialResponseWriter(PartialViewContextImpl ctx) {
super(null);
this.ctx = ctx;
ExternalContext extCtx = ctx.ctx.getExternalContext();
extCtx.setResponseContentType("text/xml");
extCtx.setResponseCharacterEncoding(extCtx.getRequestCharacterEncoding());
}
protected void configureResponse(ExternalContext externalContext, String filename) {
externalContext.setResponseContentType("text/xml");
externalContext.setResponseHeader("Expires", "0");
externalContext.setResponseHeader(
"Cache-Control", "must-revalidate, post-check=0, pre-check=0");
externalContext.setResponseHeader("Pragma", "public");
externalContext.setResponseHeader(
"Content-disposition", "attachment;filename=" + filename + ".xml");
externalContext.addResponseCookie(
Constants.DOWNLOAD_COOKIE, "true", new HashMap<String, Object>());
}
/**
* Crea un archivo para que pueda ser descargado en el navegador, debe previamente existir el path
* de archivo
*
* @param path
*/
public void crearArchivo(String path) {
FacesContext facesContext = FacesContext.getCurrentInstance();
StreamedContent content;
InputStream stream = null;
try {
if (path.startsWith("/")) {
stream =
((ServletContext) FacesContext.getCurrentInstance().getExternalContext().getContext())
.getResourceAsStream(path);
} else {
stream = new FileInputStream(path);
}
} catch (Exception e) {
crearError("No se puede generar el archivo path: " + path, "crearArchivo()", e);
}
if (stream == null) {
return;
}
content = new DefaultStreamedContent(stream);
if (content == null) {
return;
}
ExternalContext externalContext = facesContext.getExternalContext();
String contentDispositionValue = "attachment";
try {
externalContext.setResponseContentType(content.getContentType());
externalContext.setResponseHeader(
"Content-Disposition",
contentDispositionValue
+ ";filename=\""
+ path.substring(path.lastIndexOf("/") + 1)
+ "\"");
externalContext.addResponseCookie(
Constants.DOWNLOAD_COOKIE, "true", new HashMap<String, Object>());
byte[] buffer = new byte[2048];
int length;
InputStream inputStream = content.getStream();
OutputStream outputStream = externalContext.getResponseOutputStream();
while ((length = (inputStream.read(buffer))) != -1) {
outputStream.write(buffer, 0, length);
}
externalContext.setResponseStatus(200);
externalContext.responseFlushBuffer();
content.getStream().close();
facesContext.getApplication().getStateManager().saveView(facesContext);
facesContext.responseComplete();
} catch (Exception e) {
crearError("No se puede descargar : path: " + path, "crearArchivo()", e);
}
}
private void handlePartialResponseError(FacesContext context, Throwable t) {
if (context.getResponseComplete()) {
return; // don't write anything if the response is complete
}
try {
ExternalContext extContext = context.getExternalContext();
extContext.setResponseContentType("text/xml");
extContext.addResponseHeader("Cache-Control", "no-cache");
PartialResponseWriter writer = context.getPartialViewContext().getPartialResponseWriter();
writer.startDocument();
writer.startError(t.getClass().toString());
String msg;
if (context.isProjectStage(ProjectStage.Production)) {
msg = "See your server log for more information";
} else {
if (t.getCause() != null) {
msg = t.getCause().getMessage();
} else {
msg = t.getMessage();
}
}
writer.write(((msg != null) ? msg : ""));
writer.endError();
writer.endDocument();
if (LOGGER.isLoggable(Level.SEVERE)) {
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
t.printStackTrace(pw);
LOGGER.log(Level.SEVERE, sw.toString());
}
context.responseComplete();
} catch (IOException ioe) {
if (LOGGER.isLoggable(Level.SEVERE)) {
LOGGER.log(Level.SEVERE, ioe.toString(), ioe);
}
}
}
/**
* @param context the {@link FacesContext} for the current request
* @return a {@link ResponseWriter} for processing the request
* @throws IOException if the writer cannot be created
*/
protected ResponseWriter createResponseWriter(FacesContext context) throws IOException {
ExternalContext extContext = context.getExternalContext();
RenderKit renderKit = context.getRenderKit();
// Avoid a cryptic NullPointerException when the renderkit ID
// is incorrectly set
if (renderKit == null) {
String id = context.getViewRoot().getRenderKitId();
throw new IllegalStateException("No render kit was available for id \"" + id + "\"");
}
if (responseBufferSizeSet) {
// set the buffer for content
extContext.setResponseBufferSize(responseBufferSize);
}
// get our content type
String contentType = (String) extContext.getRequestMap().get("facelets.ContentType");
// get the encoding
String encoding = (String) extContext.getRequestMap().get("facelets.Encoding");
// Create a dummy ResponseWriter with a bogus writer,
// so we can figure out what content type the ReponseWriter
// is really going to ask for
ResponseWriter writer =
renderKit.createResponseWriter(NullWriter.Instance, contentType, encoding);
contentType = getResponseContentType(context, writer.getContentType());
encoding = getResponseEncoding(context, writer.getCharacterEncoding());
// apply them to the response
extContext.setResponseContentType(contentType);
extContext.setResponseCharacterEncoding(encoding);
// Now, clone with the real writer
writer = writer.cloneWithWriter(extContext.getResponseOutputWriter());
return writer;
}
public void download(String fileName) {
for (ServerInfo info : servers) {
try (Socket server = info.getSocket();
OutputStream os = server.getOutputStream();
PrintWriter pw = new PrintWriter(os);
InputStream is = server.getInputStream()) {
/*Protocol*/
os.write(Protocol.DOWNLOAD);
pw.println(fileName);
pw.flush();
/*Check if file exists, 1 if present, 0 if otherwise*/
int reply = is.read();
if (reply == 1) {
/*Response header*/
FacesContext fc = FacesContext.getCurrentInstance();
ExternalContext ec = fc.getExternalContext();
ec.responseReset();
ec.setResponseContentType(ec.getMimeType(fileName));
ec.setResponseHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\"");
/*Write bytes*/
transferBytes(is, ec.getResponseOutputStream());
fc.responseComplete();
System.out.println(
"File " + fileName + " was successfully downloaded with size " + file.getSize());
break;
}
} catch (ConnectException e) {
// Socket is closed
System.out.println(e + " download at " + info);
} catch (IOException ex) {
Logger.getLogger(ClientController.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
public void jsonStatus() throws IOException {
FacesContext context = FacesContext.getCurrentInstance();
Session session =
(Session) context.getApplication().evaluateExpressionGet(context, "#{auth}", Session.class);
String data = "{\"status\": \"not-logged-in\"}";
if (session.isUserLoggedIn()) {
if (null == this.data) {
data = "{\"status\": \"waiting for app\"}";
this.data = "foo";
} else {
data = "{\"status\": \"done\"}";
}
}
FacesContext facesContext = FacesContext.getCurrentInstance();
ExternalContext externalContext = facesContext.getExternalContext();
externalContext.setResponseContentType("application/json");
externalContext.setResponseCharacterEncoding("UTF-8");
externalContext.getResponseOutputWriter().write(data);
facesContext.responseComplete();
}
/** @see javax.faces.context.PartialViewContext#processPartial(javax.faces.event.PhaseId)) */
@Override
public void processPartial(PhaseId phaseId) {
Collection<String> executeIds = getExecuteIds();
Collection<String> renderIds = getRenderIds();
UIViewRoot viewRoot = ctx.getViewRoot();
if (phaseId == PhaseId.APPLY_REQUEST_VALUES
|| phaseId == PhaseId.PROCESS_VALIDATIONS
|| phaseId == PhaseId.UPDATE_MODEL_VALUES) {
// Skip this processing if "none" is specified in the render list,
// or there were no execute phase client ids.
if (executeIds == null || executeIds.isEmpty()) {
// RELEASE_PENDING LOG ERROR OR WARNING
return;
}
try {
processComponents(viewRoot, phaseId, executeIds, ctx);
} catch (Exception e) {
// RELEASE_PENDING LOG EXCEPTION
}
// If we have just finished APPLY_REQUEST_VALUES phase, install the
// partial response writer. We want to make sure that any content
// or errors generated in the other phases are written using the
// partial response writer.
//
if (phaseId == PhaseId.APPLY_REQUEST_VALUES) {
PartialResponseWriter writer = getPartialResponseWriter();
ctx.setResponseWriter(writer);
}
} else if (phaseId == PhaseId.RENDER_RESPONSE) {
try {
//
// We re-enable response writing.
//
OnOffResponseWrapper onOffResponse = new OnOffResponseWrapper(ctx);
onOffResponse.setEnabled(true);
PartialResponseWriter writer = getPartialResponseWriter();
ResponseWriter orig = ctx.getResponseWriter();
ctx.getAttributes().put(ORIGINAL_WRITER, orig);
ctx.setResponseWriter(writer);
ExternalContext exContext = ctx.getExternalContext();
exContext.setResponseContentType("text/xml");
exContext.addResponseHeader("Cache-Control", "no-cache");
writer.startDocument();
if (isRenderAll()) {
renderAll(ctx, viewRoot);
renderState(ctx);
writer.endDocument();
return;
}
// Skip this processing if "none" is specified in the render list,
// or there were no render phase client ids.
if (renderIds == null || renderIds.isEmpty()) {
} else {
processComponents(viewRoot, phaseId, renderIds, ctx);
}
renderState(ctx);
writer.endDocument();
} catch (IOException ex) {
this.cleanupAfterView();
} catch (RuntimeException ex) {
this.cleanupAfterView();
// Throw the exception
throw ex;
}
}
}
/** @see javax.faces.context.PartialViewContext#processPartial(javax.faces.event.PhaseId)) */
@Override
public void processPartial(PhaseId phaseId) {
updateFacesContext();
PartialViewContext pvc = ctx.getPartialViewContext();
Collection<String> executeIds = pvc.getExecuteIds();
Collection<String> renderIds = pvc.getRenderIds();
UIViewRoot viewRoot = ctx.getViewRoot();
if (phaseId == PhaseId.APPLY_REQUEST_VALUES
|| phaseId == PhaseId.PROCESS_VALIDATIONS
|| phaseId == PhaseId.UPDATE_MODEL_VALUES) {
// Skip this processing if "none" is specified in the render list,
// or there were no execute phase client ids.
if (executeIds == null || executeIds.isEmpty()) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(
Level.FINE,
"No execute and render identifiers specified. Skipping component processing.");
}
return;
}
try {
processComponents(viewRoot, phaseId, executeIds, ctx);
} catch (Exception e) {
if (LOGGER.isLoggable(Level.INFO)) {
LOGGER.log(Level.INFO, e.toString(), e);
}
}
// If we have just finished APPLY_REQUEST_VALUES phase, install the
// partial response writer. We want to make sure that any content
// or errors generated in the other phases are written using the
// partial response writer.
//
if (phaseId == PhaseId.APPLY_REQUEST_VALUES) {
PartialResponseWriter writer = pvc.getPartialResponseWriter();
ctx.setResponseWriter(writer);
}
} else if (phaseId == PhaseId.RENDER_RESPONSE) {
try {
//
// We re-enable response writing.
//
PartialResponseWriter writer = pvc.getPartialResponseWriter();
ResponseWriter orig = ctx.getResponseWriter();
ctx.getAttributes().put(ORIGINAL_WRITER, orig);
ctx.setResponseWriter(writer);
ExternalContext exContext = ctx.getExternalContext();
exContext.setResponseContentType("text/xml");
exContext.addResponseHeader("Cache-Control", "no-cache");
writer.startDocument();
if (isRenderAll()) {
renderAll(ctx, viewRoot);
renderState(ctx);
writer.endDocument();
return;
}
// Skip this processing if "none" is specified in the render list,
// or there were no render phase client ids.
if (renderIds == null || renderIds.isEmpty()) {
} else {
processComponents(viewRoot, phaseId, renderIds, ctx);
}
renderState(ctx);
writer.endDocument();
} catch (IOException ex) {
this.cleanupAfterView();
} catch (RuntimeException ex) {
this.cleanupAfterView();
// Throw the exception
throw ex;
}
}
}