/**
* Still experimental
*
* @param rc
* @param fileName
* @param content
* @param cache (for now, not supported, only no-cache)
* @param options
* @throws Exception
*/
public void writeStringContent(
RequestContext rc, String fileName, Reader contentReader, boolean cache, Map options)
throws Exception {
setHeaders(rc, fileName, cache, options);
// --------- Stream File --------- //
Writer ow = null;
int realLength = 0;
try {
// create the reader/writer
ow = rc.getRes().getWriter();
char[] buffer = new char[BUFFER_SIZE];
int readLength = contentReader.read(buffer);
while (readLength != -1) {
realLength += readLength;
ow.write(buffer, 0, readLength);
readLength = contentReader.read(buffer);
}
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
contentReader.close();
if (ow != null) {
ow.close();
}
}
}
public void writeBinaryContent(
RequestContext rc, String fileName, InputStream contentIS, boolean cache, Map options)
throws Exception {
OutputStream os = rc.getRes().getOutputStream();
BufferedInputStream bis = new BufferedInputStream(contentIS);
int realLength = 0;
try {
byte[] buffer = new byte[BUFFER_SIZE];
int len = buffer.length;
while (true) {
len = bis.read(buffer);
realLength += len;
if (len == -1) break;
os.write(buffer, 0, len);
}
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
os.close();
contentIS.close();
bis.close();
}
}
private void setHeaders(RequestContext rc, String fileName, Boolean cache, Map options)
throws Exception {
HttpServletRequest req = rc.getReq();
HttpServletResponse res = rc.getRes();
String characterEncoding = MapUtil.getNestedValue(options, "characterEncoding");
characterEncoding = (characterEncoding != null) ? characterEncoding : "UTF-8";
String contentType = MapUtil.getNestedValue(options, "contentType");
contentType = (contentType != null) ? contentType : servletContext.getMimeType(fileName);
contentType = (contentType != null) ? contentType : FileUtil.getExtraMimeType(fileName);
req.setCharacterEncoding(characterEncoding);
res.setContentType(contentType);
// TODO: needs to support "cache=true"
// --------- Set Cache --------- //
if (cache) {
/*
* NOTE: for now we remove this, in the case of a CSS, we do not know the length, since it is a template
* contentLength = resourceFile.length();
*
* if (contentLength < Integer.MAX_VALUE) { res.setContentLength((int) contentLength); } else {
* res.setHeader("content-length", "" + contentLength); }
*/
// This content will expire in 1 hours.
final int CACHE_DURATION_IN_SECOND = 60 * 60 * 1; // 1 hours
final long CACHE_DURATION_IN_MS = CACHE_DURATION_IN_SECOND * 1000;
long now = System.currentTimeMillis();
res.addHeader("Cache-Control", "max-age=" + CACHE_DURATION_IN_SECOND);
res.addHeader("Cache-Control", "must-revalidate"); // optional
res.setDateHeader("Last-Modified", now);
res.setDateHeader("Expires", now + CACHE_DURATION_IN_MS);
} else {
res.setHeader("Pragma", "No-cache");
res.setHeader("Cache-Control", "no-cache,no-store,max-age=0");
res.setDateHeader("Expires", 1);
}
// --------- Set Cache --------- //
}
public static Map<?, ?> buildRequestModel(RequestContext rc) {
HttpServletRequest request = rc.getReq();
HttpServletResponse response = rc.getRes();
HashMap<String, Object> requestMap = new HashMap<String, Object>();
requestMap.put(MODEL_KEY_REQUEST_CONTEXT, rc);
/*--------- Include user and auth ---------*/
/**/
Auth<?> auth = rc.getAuth();
if (auth != null) {
requestMap.put(MODEL_KEY_AUTH, auth);
requestMap.put(MODEL_KEY_USER, auth.getUser());
}
/*--------- /Include user and auth ---------*/
/* --------- Include the HTTPRequest and HTTPResponse/ --------- */
requestMap.put(MODEL_KEY_HTTP_REQUEST, request);
requestMap.put(MODEL_KEY_HTTP_RESPONSE, response);
// add the context path
requestMap.put(MODEL_KEY_CONTEXT_PATH, request.getContextPath());
// add the pathInfo
String pathInfo = rc.getPathInfo();
requestMap.put(MODEL_KEY_PATH_INFO, pathInfo);
// add the fullPath
StringBuilder fullPathSB = new StringBuilder(request.getContextPath());
fullPathSB.append(pathInfo);
requestMap.put(MODEL_KEY_FULL_PATH, fullPathSB.toString());
/* --------- Include the Request Params --------- */
requestMap.put(MODEL_KEY_PARAMS, rc.getParamMap());
/* --------- /Include the Request Params --------- */
String queryString = request.getQueryString();
requestMap.put(MODEL_KEY_QUERY_STRING, queryString);
if (queryString != null && queryString.length() > 0) {
requestMap.put(MODEL_KEY_HREF, fullPathSB.append('?').append(queryString));
} else {
requestMap.put(MODEL_KEY_HREF, fullPathSB.toString());
}
/* --------- Include Headers --------- */
HashMap<String, Object> headersMap = new HashMap<String, Object>();
requestMap.put(MODEL_KEY_HEADERS, headersMap);
Enumeration headerNames = request.getHeaderNames();
while (headerNames.hasMoreElements()) {
String headerName = (String) headerNames.nextElement();
String headerValue = request.getHeader(headerName);
headersMap.put(headerName, headerValue);
}
/* --------- /Include Headers --------- */
/* --------- Include Cookies --------- */
requestMap.put(MODEL_KEY_COOKIES, rc.getCookieMap());
/* --------- /Include Cookies --------- */
// --------- Include the WebState --------- //
requestMap.put("webState", new WebStateProxy(rc));
// --------- Include the WebState --------- //
return requestMap;
}