antville/helma
antville/helma
1
1
Fork 0
Code Issues 5 Pull requests 5 Projects Releases 5 Activity Actions

Added experimental res.forward() to forward a request to a local (static) resource.

Browse source 
The base resource must be mounted as <app>.protectedStatic in the apps.properties file.
Currently no Content-Type is set on the response.
This commit is contained in:
hns 2003-11-14 13:14:07 +00:00
parent ea32bc9da4
commit e486bbb9b0
1 changed files with 45 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

47
src/helma/servlet/AbstractServletClient.java
View file

@ -283,7 +283,7 @@ public abstract class AbstractServletClient extends HttpServlet {
try { try {
if (debug) { if (debug) {
sendError(response, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, sendError(response, HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
"Error in request handler:" + x); "Server error: " + x);
x.printStackTrace(); x.printStackTrace();
} else { } else {
sendError(response, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, sendError(response, HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
@ -299,7 +299,12 @@ public abstract class AbstractServletClient extends HttpServlet {
} }
void writeResponse(HttpServletRequest req, HttpServletResponse res, void writeResponse(HttpServletRequest req, HttpServletResponse res,
ResponseTrans hopres) { ResponseTrans hopres) throws IOException {
if (hopres.getForward() != null) {
sendForward(res, hopres.getForward());
return;
}
if (hopres.getETag() != null) { if (hopres.getETag() != null) {
res.setHeader("ETag", hopres.getETag()); res.setHeader("ETag", hopres.getETag());
} }
@ -419,6 +424,44 @@ public abstract class AbstractServletClient extends HttpServlet {
res.setHeader("Location", location); res.setHeader("Location", location);
} }
/**
* Forward the request to a static file. The file must be reachable via
* the context's protectedStatic resource base.
*/
void sendForward(ServletResponse res, String forward) throws IOException {
ServletContext cx = getServletConfig().getServletContext();
String path = cx.getRealPath(forward);
if (path == null)
throw new IOException("Resource "+forward+" not found");
File file = new File(path);
int length = (int) file.length();
res.setContentLength(length);
InputStream in = cx.getResourceAsStream(forward);
if (in == null)
throw new IOException("Can't read "+path);
OutputStream out = res.getOutputStream();
int bufferSize = 4096;
byte buffer[] = new byte[bufferSize];
int l = bufferSize;
while (length>0) {
if (length < bufferSize)
l = in.read(buffer, 0, length);
else
l=in.read(buffer, 0, bufferSize);
if (l == -1)
break;
length -= l;
out.write(buffer, 0, l);
}
}
FileUpload getUpload(HttpServletRequest request, String encoding) throws Exception { FileUpload getUpload(HttpServletRequest request, String encoding) throws Exception {
int contentLength = request.getContentLength(); int contentLength = request.getContentLength();
BufferedInputStream in = new BufferedInputStream(request.getInputStream()); BufferedInputStream in = new BufferedInputStream(request.getInputStream());