Hi, just curious: will this work with a scoped ear-deployer. How are EJBS: deployed from within a scoped ear-deployer made available to the servlet classloader? With WebService this was done through addClassLoader(), but how is it done in this servlet aproach?
//Peter On Mon, 2003-02-17 at 19:33, James Cooley wrote: > Hi Dain, > > I wrote a servlet (attached) and it looks like it will simplify > things. > > It effectively replaces WebService and WebServer (WebService > simply wraps WebServer). WebClassLoader doesn't have a dependency on > WebServ* so it can operate as normal. I ran the DynLoadingUnitTestCase > and it passes. Funnily enough it passes if it succeeds with > ./build.sh -Dtest=jrmp tests-client-unit > but fails with > ./build.sh -Dtest=jrmp test > I think this is how it's supposed to be called at any rate. > > A couple of points: > > 1. I didn't implement addClassLoader - AFAIK Scott said we will use the > servlets class loader to retrieve all classes. Removing addClassLoader > doesn't appear to cause a problem. > 2. The WebServ* classes should be removed. > 3. run.sh/run.bat will have to be updated with > -Djava.rmi.server.codebase=http://localhost:8080/class-loader/ > 4. Do we need to have a jmx service for this? > > I've been working on the 3.2 branch but it should work with 4.0. I have > been using my own xdoclet ant script to build it as a .war - do you want > me to use another deployment script as a template? > > I'll have some time over the next couple of days to write a compliant > build script and make any other changes you may want. > > James > > Dain Sundstrom wrote: > > We have a small project open for a volunteer. In Jboss 2 and 3 we have > > a custom lightweight web server (port 8083) that returns java class > > files from the classLoader.getResouceAsStream to RMI clients (this is > > how remote class loading happens). I talked to Scott at JBoss Boot Camp > > and we think it is a good idea to replace this with a plain old Servlet > > for JBoss 4.0 so it can work with regular security, pooling and such. > > This is a fairly simple piece of code and shouldn't take longer then a > > day or two. If you are interested the code can be found in > > jboss-head/server/src/main/org/jboss/web/WebServer.java > > > > -dain > > > > > > > > ------------------------------------------------------- > > This SF.NET email is sponsored by: > > SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! > > http://www.vasoftware.com > > _______________________________________________ > > Jboss-development mailing list > > [EMAIL PROTECTED] > > https://lists.sourceforge.net/lists/listinfo/jboss-development > > > > > > > ---- > > /* JBoss, the OpenSource J2EE webOS > * > * Distributable under LGPL license. > * See terms of license at gnu.org. > */ > > package org.jboss.web; > > import javax.servlet.ServletException; > import javax.servlet.ServletConfig; > import javax.servlet.http.HttpServlet; > import javax.servlet.http.HttpServletRequest; > import javax.servlet.http.HttpServletResponse; > import java.io.IOException; > import java.io.InputStream; > import org.jboss.logging.Logger; > import org.jboss.util.stream.Streams; > > /** > * The HTTPClassLoader Servlet's primary purpose is to simplify dynamic >class-loading in RMI. > * > * It can serve any file that is available, including class-files. > * This is a replacement for the WebServer class in this package. > * > * @web.servlet > * display-name="JBoss HTTPClassLoaderServlet" > * load-on-startup="1" > * name="HTTPClassLoaderServlet" > * > * @web.servlet-mapping > * url-pattern="/*" > * > * @link org.jboss.test.jrmp.test.DynLoadingUnitTestCase > * @see http://java.sun.com/j2se/1.4/docs/guide/rmi/codebase.html > * > * @author <a href="mailto:[EMAIL PROTECTED]";>James Cooley</a> > */ > > public class HTTPClassLoaderServlet extends HttpServlet > { > > // Constants ----------------------------------------------------- > > // Attributes ---------------------------------------------------- > private static Logger log = Logger.getLogger(HTTPClassLoaderServlet.class); > > public static final String CONTENT_TYPE = "application/binary"; > > > public void init(ServletConfig conf) throws ServletException > { > super.init(conf); > } > > /** > * Called by the server (via the service method) to allow a servlet to handle a >POST request. > * The HTTP POST method allows the client to send data of unlimited length to the >Web server > * a single time and is useful when posting information such as credit card >numbers. > */ > public void doPost(HttpServletRequest request, HttpServletResponse response) > throws IOException, ServletException > { > log.trace("post called"); > doGet(request, response); > } > > public void doGet(HttpServletRequest request, HttpServletResponse response) >throws ServletException > { > String filePath = null; > boolean traceOn = log.isTraceEnabled(); > response.setContentType(CONTENT_TYPE); > try > { > String servletRoot = request.getContextPath(); > int startOfFilePath = servletRoot.length() + 1; // +1 to get the trailing >"/" > String rawPath = request.getRequestURI().substring(startOfFilePath); > boolean usesJBossProtocol = rawPath.indexOf(']') > 0; > if(usesJBossProtocol) > filePath = extractClassName(rawPath); > else > filePath = rawPath; > > if (traceOn) > { > log.trace("servletRoot("+servletRoot+")"); > log.trace("rawPath("+rawPath+")"); > log.trace("filePath("+ filePath+")"); > } > > if(filePath == null) > { > response.sendError(HttpServletResponse.SC_NOT_FOUND, "Requested class >name set to null!"); > return; > } > > InputStream classStream = >Thread.currentThread().getContextClassLoader().getResourceAsStream(filePath); > if(classStream != null) > { > long bytes = Streams.copy(classStream, response.getOutputStream()); > if(log.isTraceEnabled()) > log.trace("copied " + bytes + " bytes"); > } > } > catch(IOException ioex) > { > // this will send back the correct HTTP error code > try > { > response.sendError(HttpServletResponse.SC_NOT_FOUND, "Could not find " + >filePath); > } > catch(IOException ioexOops) > { > log.fatal(ioexOops); > } > } > } > > > > /** > * > * This is to support a JBoss proprietary class loading protocol. > * We do not use the class loader key as we don't support the > * addition of classloaders. The rest of this comment describes > * the protocol. > * > * Parse the path into the class loader key and file path. > * > * The class loader key is a string whose format is > * "ClassName[oid]", where the oid substring may contain '/' > * chars. The expected form of the raw path is: > * > * "SomeClassName[some/object/id]/some/file/path" > * > * The class loader key is "SomeClassName[some/object/id]" > * and the file path is "some/file/path" > * > * @param request a <code>HttpServletRequest</code> value > * @return a <code>String</code> value - the filePath that was found > * @exception IOException if an error occurs > */ > protected String extractClassName(String rawPath) > { > int endOfKey = rawPath.indexOf(']'); > String filePath = rawPath.substring(endOfKey+2); > String loaderKey = rawPath.substring(0, endOfKey+1); > log.trace("loaderKey = "+loaderKey); > log.trace("filePath = "+filePath); > return filePath; > } > > } > -- ------------------------------------------------------------ Peter Antman Chief Technology Officer, Development Technology in Media, Box 34105 100 26 Stockholm WWW: http://www.tim.se WWW: http://www.backsource.org Email: [EMAIL PROTECTED] Phone: +46-(0)8-506 381 11 Mobile: +46-(0)704 20 58 11 ------------------------------------------------------------ ------------------------------------------------------- This SF.net email is sponsored by: SlickEdit Inc. 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