image size setup

Recently, someone has posted how to check image sizes using java in   CF.  I have hundreds of images to check on one page where the images   are entered by users.  On the code that was posted, a java object is   created and then a pict is assigned to it.  It would seem that since   I am doing lots of images, I shouldn't create an image object each   time, just the picture object (f).  So I broke them into two batches   of script, but I'm getting the error stating that imgRdr is undefined   (cause it's in another function).  I'm not sure how to reference this   var or if the rest of this is gonna work or if it's a good idea at   all.  Any thoughts? Here's the code: <cfscript>            function init_image (){                      imgObj = CreateObject ("java","java.awt.image.BufferedImage");                      imgRdr = CreateObject ("java","javax.imageio.ImageIO");            }            function set_size(image_name){                      f = CreateObject("java","java.net.URL").init ('http://www.sph.umd.edu/images/careerexpo.jpg');                      imgObj = imgRdr.read(f);                      imgObj.imageWidth  = imgObj.getWidth();                      imgObj.imageHeight = imgObj.getHeight();                      return imgObj;                                    } </cfscript> -- Daniel Kessler University of Maryland College Park School of Public Health 3302E HHP Building College Park, MD  20742-2611 Phone: 301-405-2545 http://sph.umd.edu

> Recently, someone has posted how to check image sizes using java in CF. > This was not posted by me, but it was in response to my query. Works great. My thanks to the person who first posted it.   <!--- function to get the properties of the image file --->   <cfscript>   function get_imageinfo(imgfile){     jFileIn = createObject("java","java.io.File").init(imgfile);     ImageInfo = StructNew();     ImageObject = createObject("java","javax.imageio.ImageIO").read(jFileIn);     imageFile = CreateObject("java", "java.io.File");     imageFile.init(imgfile);     sizeb = imageFile.length();     sizekb = numberformat(sizeb / 1024, "999999999.99");     sizemb = numberformat(sizekb / 1024, "99999999.99");     get_imginfo = StructNew();     get_imginfo.ImgWidth = ImageObject.getWidth();     get_imginfo.ImgHeight = ImageObject.getHeight();     get_imginfo.SizeKB = sizekb;     get_imginfo.SizeMB = sizemb;     get_imginfo.ImageFormat = ListLast(ListLast(imgfile, "\"), ".");   }   </cfscript>   <cfset tmp = get_imageinfo("MYPATH\MYFILENAME") />   <!--- this is the image file to get --->     <cfset width=#get_imginfo.ImgWidth#>           <!--- this is the resulting image width --->     <cfset height=#get_imginfo.ImgHeight#>         <!--- this is the resulting image height --->   <!--- now define what to test width and height against and what to do --->   <cfif width gt MYMAXWIDTH or height gt MYMAXHEIGHT>     File To Large   <cfelse>     File OK   </cfif> Robert B. Harrison Director of Interactive services Austin & Williams 125 Kennedy Drive, Suite 100 Hauppauge NY 11788 T : 631.231.6600 Ext. 119 F : 631.434.7022 www.austin-williams.com

Wow... that looks eerily familiar to this... /* * Returns image height, width and file size (kb, kB, mB) * * @param imgfile    Absolute path to a valid image file (Required) * @param appname   Application name. (Required) * @return      Returns a struct. * @author      Bobby Hartsfield (bobby@acoderslife.com) * @version     3 * @created      May 8, 2006 */ function bhimginfo(imgfile){       var jFileIn = createObject("java","java.io.File").init(imgfile);       var ImageObject = createObject("java","javax.imageio.ImageIO").read(jFileIn);       var ImageInfo = StructNew();              var imageFile = CreateObject("java", "java.io.File").init(imgfile);         var sizeb = imageFile.length();       var sizekb = numberformat(sizeb / 1024, "999999999.99");       var sizemb = numberformat(sizekb / 1024, "99999999.99");       var bhImageInfo = StructNew();          bhImageInfo.ImgWidth = ImageObject.getWidth();       bhImageInfo.ImgHeight = ImageObject.getHeight();       bhImageInfo.SizeB = sizeb;       bhImageInfo.SizeKB = sizekb;       bhImageInfo.SizeMB = sizemb;              return bhImageInfo; }    :-) Anyway... If you don't need to change it or lose it... just use a persistent scope for it. Then you can pass it around to whatever you want. function init_image() { application.imgObj = CreateObject("java","java.awt.image.BufferedImage"); application.imgRdr = CreateObject("java","javax.imageio.ImageIO"); } function set_size(image_name){ f = CreateObject("java","java.net.URL").init('http://www.sph.umd.edu/images/care erexpo.jpg'); imgObj = application.imgRdr.read(f); imgObj.imageWidth  = imgObj.getWidth(); imgObj.imageHeight = imgObj.getHeight(); return imgObj; } .:.:.:.:.:.:.:.:.:.:.:.:. Bobby Hartsfield http://acoderslife.com http://cf4em.com > Recently, someone has posted how to check image sizes using java in CF. > This was not posted by me, but it was in response to my query. Works great. My thanks to the person who first posted it.   <!--- function to get the properties of the image file --->   <cfscript>   function get_imageinfo(imgfile){     jFileIn = createObject("java","java.io.File").init(imgfile);     ImageInfo = StructNew();     ImageObject = createObject("java","javax.imageio.ImageIO").read(jFileIn);     imageFile = CreateObject("java", "java.io.File");     imageFile.init(imgfile);     sizeb = imageFile.length();     sizekb = numberformat(sizeb / 1024, "999999999.99");     sizemb = numberformat(sizekb / 1024, "99999999.99");     get_imginfo = StructNew();     get_imginfo.ImgWidth = ImageObject.getWidth();     get_imginfo.ImgHeight = ImageObject.getHeight();     get_imginfo.SizeKB = sizekb;     get_imginfo.SizeMB = sizemb;     get_imginfo.ImageFormat = ListLast(ListLast(imgfile, "\"), ".");   }   </cfscript>   <cfset tmp = get_imageinfo("MYPATH\MYFILENAME") />   <!--- this is the image file to get --->     <cfset width=#get_imginfo.ImgWidth#>           <!--- this is the resulting image width --->     <cfset height=#get_imginfo.ImgHeight#>         <!--- this is the resulting image height --->   <!--- now define what to test width and height against and what to do --->   <cfif width gt MYMAXWIDTH or height gt MYMAXHEIGHT>     File To Large   <cfelse>     File OK   </cfif> Robert B. Harrison Director of Interactive services Austin & Williams 125 Kennedy Drive, Suite 100 Hauppauge NY 11788 T : 631.231.6600 Ext. 119 F : 631.434.7022 www.austin-williams.com

If set_size needs a reference to the image object, return the image object from init_image and then pass it to the set_size function. Adrian http://www.adrianlynch.co.uk/ Recently, someone has posted how to check image sizes using java in CF.  I have hundreds of images to check on one page where the images are entered by users.  On the code that was posted, a java object is created and then a pict is assigned to it.  It would seem that since I am doing lots of images, I shouldn't create an image object each time, just the picture object (f).  So I broke them into two batches of script, but I'm getting the error stating that imgRdr is undefined (cause it's in another function).  I'm not sure how to reference this var or if the rest of this is gonna work or if it's a good idea at all.  Any thoughts? Here's the code: <cfscript>            function init_image (){                      imgObj = CreateObject ("java","java.awt.image.BufferedImage");                      imgRdr = CreateObject ("java","javax.imageio.ImageIO");            }            function set_size(image_name){                      f = CreateObject("java","java.net.URL").init ('http://www.sph.umd.edu/images/careerexpo.jpg');                      imgObj = imgRdr.read(f);                      imgObj.imageWidth  = imgObj.getWidth();                      imgObj.imageHeight = imgObj.getHeight();                      return imgObj;            } </cfscript> -- Daniel Kessler University of Maryland College Park School of Public Health 3302E HHP Building College Park, MD  20742-2611 Phone: 301-405-2545 http://sph.umd.edu

Thank you everyone - it's working now. I have a related question, though it's not about referencing.  It seems that now that I'm going through java, the images often can't be read because their title contains odd characters - characters that are fine in CF, for example "joe_smiling (small).jpg".  In this case the parens mess it up, but I'm not sure what else might. Clearly I should cleanse the image name on the way in.  I don't work in java much, so I'm not sure which chars to replace.  I have something that cleanses chars but it's not useful for this. I've been googling for illegal path characters but haven't found  a list yet. daniel

A safe bet would be rereplace [^a-zA-Z0-9-_] .:.:.:.:.:.:.:.:.:.:.:.:. Bobby Hartsfield http://acoderslife.com http://cf4em.com Thank you everyone - it's working now. I have a related question, though it's not about referencing.  It seems that now that I'm going through java, the images often can't be read because their title contains odd characters - characters that are fine in CF, for example "joe_smiling (small).jpg".  In this case the parens mess it up, but I'm not sure what else might. Clearly I should cleanse the image name on the way in.  I don't work in java much, so I'm not sure which chars to replace.  I have something that cleanses chars but it's not useful for this. I've been googling for illegal path characters but haven't found  a list yet. daniel

>A safe bet would be rereplace [^a-zA-Z0-9-_] Thank you very much. I want to just implement it without getting it, but I can't.  What would that clear out?  My guess is that it only allows a-z (and caps) and 0 to 9 (and maybe dash). I do appreciate the help.

Sorry, yes... it removes anything that isn't a letter, number, underscore or hyphen You could add dots to it as well if you want to run it against the whole name including the extenstion... [^a-zA-Z0-9-_\.] So this: Rereplace('joe_smiling (small).jpg', '[^a-zA-Z0-9-_\.]', '_', 'all') Would result in: joe_smiling__small_.jpg .:.:.:.:.:.:.:.:.:.:.:.:. Bobby Hartsfield http://acoderslife.com http://cf4em.com >A safe bet would be rereplace [^a-zA-Z0-9-_] Thank you very much. I want to just implement it without getting it, but I can't.  What would that clear out?  My guess is that it only allows a-z (and caps) and 0 to 9 (and maybe dash). I do appreciate the help.

>Sorry, yes... it removes anything that isn't a letter, number, underscore or >hyphen > Very nice = thank you very much