Dave is right --- when in CF use CF!
Here's a code snippet fron June 19,2003 entry is Chris Cantrell's blog (he's
an Adobe expert)
http://weblogs.macromedia.com/cantrell/archives/coldfusion/index.cfm
<cffile action="readbinary" file="/home/cantrell/Pictures/Corrs2.jpg"
variable="pic"/>
<cfcontent type="image/gif; charset=8859_1">
<CFSCRIPT>
writeOutput(toString(pic));
</cfscript>
Just change the content type to what you need!
----- Original Message -----
From: "Sarah Geren" <[EMAIL PROTECTED]>
To: "CF-Talk" <[email protected]>
Sent: Monday, January 21, 2008 2:38 PM
Subject: Re: Read large binary file, MX7?
> thanks,
> I was actually originally trying to use this piece of code that I found
> using java to read through the object, but I am so not a Java person and
> got
> stuck when I needed to add the following parameter:
> response.setContentLength(arrayLen(byte_arry_here));
> into the script so that the browser knows how much it is downloading...
> I tried:
> response.setContentLength(arrayLen(instream));
> response.setContentLength(arrayLen(byteArray));
> response.setContentLength(arrayLen(s_file));
> but none worked... So I gave up and decided to use cfffile, until
> realizing
> how large some of the files were. I just wasn't sure if there was
> something
> else I could do with cffile that would make my original code work...
>
> So can someone tell me instead how to call the content length into the
> script below please?
>
> <cfscript>
> function f_Stream(s_file,i_seek,MIME_TYPE,fileName) {
> var i_position = i_seek;
> var i_buffer = 10000;
> var byteClass = createObject("java", "java.lang.Byte"); //
> var byteArray =
> createObject("java","java.lang.reflect.Array").newInstance(byteClass.TYPE,
> i_buffer);
> var context = getPageContext();
> var response = context.getResponse().getResponse();
>
> var instream = createObject("java", "java.io.FileInputStream");
> var outstream = response.getOutputStream(); // take over control of the
> feed to the browser
> if(structKeyexists(arguments,"MIME_TYPE"))
> response.setContentType(MIME_TYPE);
> if(structKeyExists(arguments,"fileName"))
> response.setHeader("content-disposition","attachment;
> filename=#fileName#");
> byteClass.Init(1);
> instream.init(s_file);
> context.setFlushOutput(false);
> try {
> if(i_seek GT 0) {
> //instream.skip(i_seek);
> //outstream.write(toBinary('RkxWAQEAAAAJAAAACQ==')); // output the
> header bytes
> }
> do {
> i_length = instream.read(byteArray,0,i_buffer);
> if (i_length neq -1) {
> outstream.write(byteArray);
> outstream.flush();
> }
> } while (i_length neq -1); // keep going until there's nothing left to
> read.
> }
> catch(any excpt) {}
> outstream.flush(); // send any remaining bytes
> response.reset(); // reset the feed to the browser
> outstream.close(); // close the stream to flash
> instream.close(); // close the file stream
> }
> </cfscript>
> <cfset
> f_Stream("#scene_data.mpeg#",0,"video/mpeg","scene_#scene_id#.mpg")>
>
>
>
> ----- Original Message -----
> From: "Sonny Savage" <[EMAIL PROTECTED]>
> To: "CF-Talk" <[email protected]>
> Sent: Monday, January 21, 2008 3:07 PM
> Subject: Re: Read large binary file, MX7?
>
>
>> Any time I find a bottleneck with CF tags, I generally go looking for a
>> Java
>> solution. These pages may have useful snippets...
>> http://www.coldfusionmuse.com/index.cfm/2006/10/26/Java.directory.list
>> http://java.sun.com/j2se/1.4.2/docs/api/java/io/File.html
>> http://www.scripts.com/coldfusion-scripts/file-manipulation-scripts/
>>
>> On Jan 21, 2008 2:27 PM, Sarah Geren <[EMAIL PROTECTED]> wrote:
>>
>>> Hello,
>>>
>>> I have an application which uses CFFILE to read a binary file into a
>>> variable, and that variable is used to write out the video to the brower
>>> so
>>> someone can download it...
>>> This code is working great, until the file sizes become too large. It
>>> seems to stop working (and returns a null null or 500 null error) when
>>> the
>>> file sizes go past 200-250MB...
>>> There are some files on this server that are up to 1GB in size that have
>>> to be downloaded via this script, so it needs to be able to handle
>>> pretty
>>> big files.
>>>
>>> The server is MX7, 4GB Ram, and here are my java args:
>>>
>>> java.args=-server -DJINTEGRA_NATIVE_MODE -DJINTEGRA_PREFETCH_ENUMS
>>> -Xms1024m -Xmx1024m -Dsun.io.useCanonCaches=false -XX:MaxPermSize=512m
>>> -XX:PermSize=64m -Dcoldfusion.rootDir={application.home}/../ -
>>> Dcoldfusion.libPath={application.home}/../lib -XX:+UseConcMarkSweepGC
>>> -XX:+UseParNewGC
>>> -XX:NewSize=48m -Dcoldfusion.classPath={application.home}/../lib/updates
>>> ,{application.home}/../lib,{application.home}/../gateway/lib/,{
>>> application.home}/../wwwroot/WEB-INF/cfform/jars
>>>
>>> Any help would be appreciated!
>>> Thanks!
>>>
>>> <cffile action="readbinary" file="#scene_data.mpeg#" variable="video">
>>> <cfheader name="Content-disposition" value="attachment;
>>> filename=scene_#scene_id#.mpg">
>>> <cfscript>
>>> context = getPageContext();
>>> context.setFlushOutput(false);
>>> response = context.getResponse().getResponse();
>>> out = response.getOutputStream();
>>> response.setContentType("video/mpeg");
>>> response.setContentLength(arrayLen(video));
>>> out.write(video);
>>> out.flush();
>>> response.reset();
>>> out.close();
>>> </cfscript>
>>>
>>>
>>
>>
>
>
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