+ if (name.equalsIgnoreCase(Headers.HEADER_PRAGMA)) {
+ if (value != null && value.trim().equalsIgnoreCase("no-cache"))
+ cacheSeconds = 0;
+ return;
+ }
+
+ /** Pass header through, if no value from intrest was found */
+ if (overwrite)
+ response.setHeader(name, value);
+ else
+ response.addHeader(name, value);
+ }
+
+ private void calculateCacheSeconds() {
+ if (!cacheSecondsSet && expires >= now) {
+ cacheSeconds = (int)(expires/1000 - now/1000);
+ log.debug("calculating cache-seconds from DATE and EXPIRES: {}", cacheSeconds);
+ }
+ }
+
+ @Override
+ public void addCookie(Cookie cookie) {
+ // TODO: Je nach Vary-Einstellung ETag anpassen?
+ response.addCookie(cookie);
+ }
+
+ @Override
+ public boolean containsHeader(String name) {
+ return response.containsHeader(name);
+ }
+
+ @Override
+ public String encodeURL(String url) {
+ return response.encodeURL(url);
+ }
+
+ @Override
+ public String encodeRedirectURL(String url) {
+ return response.encodeRedirectURL(url);
+ }
+
+ @Override
+ public String encodeUrl(String url) {
+ return response.encodeUrl(url);
+ }
+
+ @Override
+ public String encodeRedirectUrl(String url) {
+ return response.encodeRedirectUrl(url);
+ }
+
+ @Override
+ public void sendError(int sc, String msg) throws IOException {
+ // TODO: Decoration anpassen/anstoßen?!?
+ response.sendError(sc,msg);
+ }
+
+ @Override
+ public void sendError(int sc) throws IOException {
+ // TODO: Decoration anpassen/anstoßen?!?
+ response.sendError(sc);
+ }
+
+ @Override
+ public void sendRedirect(String location) throws IOException {
+ // TODO: Decoration anpassen/anstoßen?!?
+ response.sendRedirect(location);
+ }
+
+ @Override
+ public String getCharacterEncoding() {
+ return response.getCharacterEncoding();
+ }
+
+ @Override
+ public String getContentType() {
+ return response.getContentType();
+ }
+
+ @Override
+ public void setCharacterEncoding(String charset) {
+ // TODO: Je nach Vary-Einstellung ETag anpassen?
+ response.setCharacterEncoding(charset);
+ }
+
+ @Override
+ public void setContentType(String type) {
+ // TODO: Je nach Vary-Einstellung ETag anpassen?
+ response.setContentType(type);
+ }
+
+ @Override
+ public int getBufferSize() {
+ return response.getBufferSize();
+ }
+
+ @Override
+ public boolean isCommitted() {
+ // TODO: Eigene commit-Kontrolle wegen Dekorations-Einstiegspunkt?!?
+ return response.isCommitted();
+ }
+
+ @Override
+ public void setLocale(Locale loc) {
+ // TODO: Je nach Vary-Einstellung ETag anpassen?
+ response.setLocale(loc);
+ }
+
+ @Override
+ public Locale getLocale() {
+ return getLocale();
+ }
+
+
+ class CountingServletOutputStream extends ServletOutputStream {
+
+ private OutputStream out;
+ int left;
+ boolean empty;
+
+
+ CountingServletOutputStream() throws IOException {
+ out = response.getOutputStream();
+ left = buffer;
+ empty = true;
+ }
+
+
+ void setBuffer(int size) throws IllegalStateException {}
+
+ boolean isZipped() {
+ return false;
+ }
+
+ void finish() throws IOException {
+ decorate();
+ }
+
+ void decorate() throws IOException {
+ try {
+ AcceleratorFilter.this.cacheControl.decorate(AccelerationWrapper.this.request, response, AccelerationWrapper.this);
+ }
+ catch (Exception e) {
+ log.error("Error while guessing Cache-Header's", e);
+ response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
+ }
+ }
+
+
+ @Override
+ public void close() throws IOException {
+ decorate();
+ out.close();
+ }
+
+ @Override
+ public void flush() throws IOException {
+ decorate();
+ out.flush();
+ }