To All: So far I've found that using the old fashioned servlet is the only (& Quickest as far as download speed) way to go.
I would love to see a managedBean solution if someone comes up with one. I am going to attempt the phaseListener approach ( http://cagataycivici.wordpress.com/2006/02/16/phaselistener_renders_an_image_no/ Phase Listener Approach ) and we'll see. But servlet works for me. Matt Shane Petroff wrote: > > Hello, > > I'm having a problem with a link used to download a "large" file. I say > large in quotation because by modern standards, the 5MB file I'm talking > about is tiny; I need to be able to handle at least 20MB. The same code > works for small files (<25K), but dies on larger ones. Hopefully it is a > configuration issue. On the jsp, there is a commandLink bound to the > "onDownload" action pasted below. The only config I can imagine that > might come into play is configuring the extensions filter itself. I've > specified UTF-8 encodings by default since several pages must support > extended characters. I'm currently using MyFaces core 1.1.5, Tomahawk > 1.1.6 and Tomcat 5.5.23 > > The stack trace is: > java.lang.OutOfMemoryError: Java heap space > at java.util.Arrays.copyOf(Arrays.java:2882) > at > java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:100) > at > java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:572) > at java.lang.StringBuffer.append(StringBuffer.java:320) > at > org.apache.myfaces.shared_tomahawk.renderkit.html.util.UnicodeEncoder.encode(UnicodeEncoder.java:54) > (full stack trace below) > > Extension Filter config: > <filter> > <filter-name>MyFacesExtensionsFilter</filter-name> > > <filter-class>org.apache.myfaces.webapp.filter.ExtensionsFilter</filter-class> > <init-param> > <param-name>maxFileSize</param-name> > <param-value>90m</param-value> > </init-param> > <init-param> > <param-name>uploadMaxFileSize</param-name> > <param-value>90m</param-value> > </init-param> > </filter> > > Action code: > public String onDownload() > { > String rtn = Constants.ERROR_OUTCOME; > FileInputStream fis = null; > OutputStream os = null; > try > { > File file = buildFile(); // creates a 5MB file. If I hack > this to return a 25K file, it all works well > > FacesContext fc = FacesContext.getCurrentInstance(); > HttpServletResponse response = (HttpServletResponse) > fc.getExternalContext().getResponse(); > response.setHeader("Content-disposition", "attachment; > filename=" + file.getName()); > response.setContentType("application/xml"); > > fis = new FileInputStream(file); > os = new BufferedOutputStream(response.getOutputStream()); > > int read; > while( (read = fis.read()) != -1 ) > os.write(read); > > os.flush(); > fc.responseComplete(); > rtn = Constants.SUCCESS_OUTCOME; > } > catch ( Exception e ) > { > logException( MessageConstants.LOADING_ERROR_PREFIX + "XML", > e ); > } > finally > { > try > { > os.close(); > fis.close(); > } > catch(Exception ignored) { /* we don't care about NPE's > either */ } > } > > return rtn; > } > > Full Stack Trace: > java.lang.OutOfMemoryError: Java heap space > at java.util.Arrays.copyOf(Arrays.java:2882) > at > java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:100) > at > java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:572) > at java.lang.StringBuffer.append(StringBuffer.java:320) > at > org.apache.myfaces.shared_tomahawk.renderkit.html.util.UnicodeEncoder.encode(UnicodeEncoder.java:54) > at > org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlResponseWriterImpl.write(HtmlResponseWriterImpl.java:567) > at > org.apache.myfaces.renderkit.html.util.DefaultAddResource.writeResponse(DefaultAddResource.java:847) > at > org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:162) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) > at > org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:173) > at > org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) > at > ca.mayet.SessionTimeoutRedirectFilter.doFilter(SessionTimeoutRedirectFilter.java:78) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) > at > org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151) > at > org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:870) > at > org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) > at > org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) > at > org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) > at > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685) > at java.lang.Thread.run(Thread.java:619) > > -- > Shane > > > -- View this message in context: http://www.nabble.com/File-download-and-out-of-memory-tp14163021p25754734.html Sent from the MyFaces - Users mailing list archive at Nabble.com.
