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<TITLE>The Quintessential Printing Program Using a Streaming Printing Service
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    <B><A HREF="../javax.print/pkg.html">javax.print</A></B><font color="#666666" SIZE="-2">
        &nbsp;[6 examples]
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  <h3>
    e705.  
    The Quintessential Printing Program Using a Streaming Printing Service</h3>

A streaming print service is used to convert print data from one format
to another. Unlike a print service that prints to a printer,
a streaming print service writes to an output stream.
This example demonstrates a program that prints
an image to a postscript-generating streaming print service.

<pre>
    import java.io.*;
    import javax.print.*;
    
    public class <font color="#0066ff"><i>BasicStream</i></font> {
        public static void main(String[] args) {
            try {
                // Open the image file
                InputStream is = new BufferedInputStream(
                    new FileInputStream(<font color="#0066ff"><i>"filename.gif"</i></font>));
    
                // Prepare the output file to receive the postscript
                OutputStream fos = new BufferedOutputStream(
                    new FileOutputStream(<font color="#0066ff"><i>"filename.ps"</i></font>));
    
                // Find a factory that can do the conversion
                DocFlavor flavor = <font color="#0066ff"><i>DocFlavor.INPUT_STREAM.GIF</i></font>;
                StreamPrintServiceFactory[] factories =
                    StreamPrintServiceFactory.lookupStreamPrintServiceFactories(
                        flavor,
                        <font color="#0066ff"><i>DocFlavor.BYTE_ARRAY.POSTSCRIPT.getMimeType()</i></font>);
    
                if (factories.length &gt; 0) {
                    StreamPrintService service = factories[0].getPrintService(fos);
    
                    // Create the print job
                    DocPrintJob job = service.createPrintJob();
                    Doc doc = new SimpleDoc(is, flavor, null);
    
                    // Monitor print job events; for the implementation of PrintJobWatcher,
                    // see <a href="../javax.print/WaitForDone.html" class="eglink"><font size="-1"><b>e706</b> Determining When a Print Job Has Finished</font></a>
                    PrintJobWatcher pjDone = new PrintJobWatcher(job);
    
                    // Print it
                    job.print(doc, null);
    
                    // Wait for the print job to be done
                    pjDone.waitForDone();
                    // It is now safe to close the streams
                }
    
                is.close();
                fos.close();
            } catch (PrintException e) {
            } catch (IOException e) {
            }
        }
    }
</pre>
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            &nbsp;Related Examples
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e704. <a class="eglink" href="BasicPrint.html?l=rel">
    The Quintessential Printing Program Using a Printing Service
</a>
<br>

e706. <a class="eglink" href="WaitForDone.html?l=rel">
    Determining When a Print Job Has Finished
</a>
<br>

e707. <a class="eglink" href="DiscoverAll.html?l=rel">
    Discovering Available Print Services
</a>
<br>

e708. <a class="eglink" href="DiscoverStream.html?l=rel">
    Discovering Available Streaming Print Services
</a>
<br>

e709. <a class="eglink" href="Cancel.html?l=rel">
    Cancelling a Print Job
</a>
<br>


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