Transcoder API example

[Raymond Law]

I am trying the first Transcoder API example with the following code:

import java.io.*;

import org.apache.batik.transcoder.image.JPEGTranscoder;
import org.apache.batik.transcoder.TranscoderInput;
import org.apache.batik.transcoder.TranscoderOutput;

public class SaveAsJPEG {

    public static void main(String[] args) throws Exception {

        // Create a JPEG transcoder
        JPEGTranscoder t = new JPEGTranscoder();

        // Set the transcoding hints.
        t.addTranscodingHint(JPEGTranscoder.KEY_QUALITY,
                             new Float(.8));

        // Create the transcoder input.
        String svgURI = new File(args[0]).toURL().toString();
        System.out.println("svgURI = " + svgURI);
        TranscoderInput input = new TranscoderInput(svgURI);

        // Create the transcoder output.
        OutputStream ostream = new FileOutputStream("out.jpg");
        TranscoderOutput output = new TranscoderOutput(ostream);

        // Save the image.
        t.transcode(input, output);

        // Flush and close the stream.
        ostream.flush();
        ostream.close();
        System.exit(0);
    }
}

But I got the following error:

200 rlaw ~/downloads/batik-1.6/test > java SaveAsJPEG batikYin.svg 
svgURI = file:/home/rlaw/downloads/batik-1.6/test/batikYin.svg
Exception in thread "main" java.lang.NullPointerException
        at java.io.Reader.<init>(Reader.java:61)
        at java.io.InputStreamReader.<init>(InputStreamReader.java:80)
        at java.util.Properties.load(Properties.java:266)
        at org.apache.batik.util.XMLResourceDescriptor.getParserProps(Unknown 
Source)
        at 
org.apache.batik.util.XMLResourceDescriptor.getXMLParserClassName(Unknown 
Source)
        at org.apache.batik.transcoder.XMLAbstractTranscoder.transcode(Unknown 
Source)
        at org.apache.batik.transcoder.SVGAbstractTranscoder.transcode(Unknown 
Source)
        at SaveAsJPEG.main(SaveAsJPEG.java:28)
201 rlaw ~/downloads/batik-1.6/test > 

batikYin.svg is from xml-batik/samples and is in the same directory as 
SaveAsJPEG.class.  What could I be missing?

Ray,





 
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