> When you "print" a complex document you need to invoke a copy of an
> application that understands the "print" shell command.
>
> You know - file extension associations.
>
> This would generally mean that you would need to associate PDF documents
> with Acrobat Reader so they can be printed. And you would set the default
> launch action to be PRINT.
Java has a print API. I wrote some code that works well printing images,
text, html, etc from the server and also prints pdf's - but only to
printers that are PostScript Level 3.0 compliant. The Java Print API (as
of 1.4.2) is still a little flakey for pdf printing to anything less then
post script 3. The INPUT_STREAM.PDF DocFlavour is still a little flawed.
I wrote a simple cfx tag to do this, print.java below. You maybe able to
convert into a cfc or something. The tag itself provides a little control
over the print job; no. of copies, orientation, media, chromaticity, etc.
If anyone wants the compiled class file send me an email off list.
/*
* File: print.java
* Date: 12 June 2003 18:57
*
* @author Rod Higgins
* @version 1.3
*/
import com.allaire.cfx.*;
import java.io.*;
import javax.print.*;
import javax.print.attribute.*;
import javax.print.attribute.standard.*;
import javax.print.event.*;
import java.util.Arrays;
import java.util.StringTokenizer;
public class print implements CustomTag {
public void processRequest(Request request, Response response) throws
Exception {
if(request.attributeExists("file")) {
String filename = request.getAttribute("file");
PrintRequestAttributeSet aset = new
HashPrintRequestAttributeSet();
// copies
if (request.attributeExists("copies")) {
aset.add(new
Copies(Integer.parseInt(request.getAttribute("copies"))));
}
// Media size
if(request.attributeExists("media")) {
if (request.getAttribute("media").equalsIgnoreCase( "A4" )) {
aset.add(MediaName.ISO_A4_WHITE);
}
if(request.getAttribute("media").equalsIgnoreCase( "Transparent")) {
aset.add(MediaName.ISO_A4_TRANSPARENT);
}
if(request.getAttribute("media").equalsIgnoreCase( "Letter")) {
aset.add(MediaName.NA_LETTER_WHITE);
}
}
// chromaticity
if (request.attributeExists("chromaticity")) {
if(request.getAttribute("chromaticity").equalsIgnoreCase(
"monochrome")) {
aset.add(Chromaticity.MONOCHROME);
}
if(request.getAttribute("chromaticity").equalsIgnoreCase( "color")) {
aset.add(Chromaticity.COLOR);
}
}
// fidelity
if(request.attributeExists("fidelity")) {
if (request.getAttribute("fidelity").equalsIgnoreCase("false")) {
aset.add(Fidelity.FIDELITY_FALSE);
}
if(request.getAttribute("fidelity").equalsIgnoreCase( "true")) {
aset.add(Fidelity.FIDELITY_TRUE);
}
}
// sides
if (request.attributeExists("sides")) {
if(request.getAttribute("sides").equalsIgnoreCase("DUPLEX") ||
request.getAttribute("sides").equalsIgnoreCase("duplex") ) {
aset.add(Sides.DUPLEX);
}
if(request.getAttribute("sides").equalsIgnoreCase("one_sided") ||
request.getAttribute("sides").equalsIgnoreCase("ONE_SIDED")) {
aset.add(Sides.ONE_SIDED);
}
}
// orientation
if(request.attributeExists("orientation")) {
if (request.getAttribute("orientation").equalsIgnoreCase( "landscape"))
{
aset.add(OrientationRequested.LANDSCAPE);
}
if(request.getAttribute("orientation").equalsIgnoreCase( "Portrait")) {
aset.add(OrientationRequested.PORTRAIT);
}
}
// job name
if(request.attributeExists("jobname")) {
aset.add(new
JobName(request.getAttribute("jobname"),null));
}
// find extension on file name to determine DocFlavour
String filetype="";
String file="";
StringTokenizer stringtokenizer = new
StringTokenizer(filename, ".");
int pathLength = stringtokenizer.countTokens();
String path[] = new String[pathLength];
int i = 0;
while(stringtokenizer.hasMoreTokens()) {
path[i] = stringtokenizer.nextToken();
i++;
}
filetype=path[pathLength-1];
response.writeDebug("Filetype is " + filetype + "<br>");
// default DocFlavour
DocFlavor flavor = DocFlavor.INPUT_STREAM.AUTOSENSE;
// check to see if it is anything else
if(filetype.equalsIgnoreCase( "text") ||
filetype.equalsIgnoreCase( "txt")) {
flavor = DocFlavor.INPUT_STREAM.TEXT_PLAIN_US_ASCII;
}
if(filetype.equalsIgnoreCase( "html")) {
flavor = DocFlavor.INPUT_STREAM.TEXT_HTML_US_ASCII ;
}
if(filetype.equalsIgnoreCase( "GIF")) {
flavor = DocFlavor.INPUT_STREAM.GIF;
}
if(filetype.equalsIgnoreCase( "JPEG")) {
flavor = DocFlavor.INPUT_STREAM.JPEG;
}
if(filetype.equalsIgnoreCase( "PCL")) {
flavor = DocFlavor.INPUT_STREAM.PCL;
}
if(filetype.equalsIgnoreCase( "PDF")) {
flavor = DocFlavor.INPUT_STREAM.PDF;
}
if(filetype.equalsIgnoreCase("PS")) {
flavor = DocFlavor.INPUT_STREAM.POSTSCRIPT;
}
PrintService[] services =
PrintServiceLookup.lookupPrintServices(flavor, aset);
if (services.length > 0) {
response.writeDebug("The printer being used is <b>" +
services[0].getName() + "</b><br>");
DocFlavor[] docs = services[0].getSupportedDocFlavors();
if (docs.length > 0) {
response.writeDebug("The printer supports the following
DocFlavour/s<br>");
for (int z=0;z<docs.length;z++){
response.writeDebug("DocFlavour <b>" +
docs[z].getMediaType() + ", " + docs[z].getMimeType() + ", " +
docs[z].getMediaSubtype() + "</b><br>");
}
}
DocPrintJob job = services[0].createPrintJob();
FileInputStream fis = new FileInputStream(filename);
DocAttributeSet das = new HashDocAttributeSet();
Doc doc = new SimpleDoc(fis, flavor, das);
job.print(doc, aset);
} else {
response.writeDebug("No printers available");
}
}
}
}
hth
Rod
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MXDU2004 + Macromedia DevCon AsiaPac + Sydney, Australia
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