You need to configure the web.xml file to increase the maximum upload file
size.  I'm not sure where this is documented in Trinidad, perhaps someone
else can tell us.  I sent Shane the upload file page from the old ADF
Developers Guide.

Mark

[EMAIL PROTECTED] | www.mizar.com | (360) 945-2643


-----Original Message-----
From: Shane Petroff [mailto:[EMAIL PROTECTED] 
Sent: Monday, December 10, 2007 9:25 AM
To: MyFaces Discussion
Subject: Re: File download and out of memory


Anyone have any guesses even? Is there a better technique? (the code was 
almost copied/pasted out of the wiki) I had wondered if the buildFile() 
method was leaving some resources open. Since I don't write a lot of I/O 
code (and since I wanted to convince myself of my own sanity), it is 
currently stubbed out to return a handle to a pre-existing file. I've 
stopped declaring a UTF-8 encoding, although UnicodeEncoder is still 
invoked. There doesn't appear to be a lot I can change with this. Should 
I just drop Tomahawk and the ExtensionsFilter altogether and try 
Trinidad? (is there any documentation on converting over)

Shane

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:10
0) 
>
>    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-clas
s> 
>
>        <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:10
0) 
>
>    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.wri
te(HtmlResponseWriterImpl.java:567) 
>
>    at 
>
org.apache.myfaces.renderkit.html.util.DefaultAddResource.writeResponse(Defa
ultAddResource.java:847) 
>
>    at 
>
org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.
java:162) 
>
>    at 
>
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:215) 
>
>    at 
>
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:188) 
>
>    at 
>
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterI
nternal(OpenSessionInViewFilter.java:173) 
>
>    at 
>
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestF
ilter.java:77) 
>
>    at 
>
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:215) 
>
>    at 
>
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:188) 
>
>    at 
>
ca.mayet.SessionTimeoutRedirectFilter.doFilter(SessionTimeoutRedirectFilter.
java:78) 
>
>    at 
>
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:215) 
>
>    at 
>
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:188) 
>
>    at 
>
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:210) 
>
>    at 
>
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va: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$Http11ConnectionHandler.processC
onnection(Http11BaseProtocol.java:665) 
>
>    at 
>
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.jav
a:528) 
>
>    at 
>
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWo
rkerThread.java:81) 
>
>    at 
>
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:685) 
>
>    at java.lang.Thread.run(Thread.java:619)
>


-- 
Shane

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