Batik SVG parsing with inline base64 images in JasperReports

Question

I have been trying for hours to parse the following .svg file (Which works fine on "Inkscape") using the Batik renderer in JasperReports (though I don't know if this is mainly a batik problem or not)

I am using Batik 1.13 and JasperReports 6.13 with it's "net.sf.jasperreports.renderers.SimpleDataRenderer". This Renderer uses Batik.

I get the following errorcode when trying to render a file with base64 images:

java.io.IOException: The byte array is not a recognized imageformat. at com.lowagie.text.Image.getInstance(Unknown Source) at net.sf.jasperreports.engine.export.JRPdfExporter$InternalImageProcessor.processImageRetainShape(JRPdfExporter.java:1992) at net.sf.jasperreports.engine.export.JRPdfExporter$InternalImageProcessor.process(JRPdfExporter.java:1787) at net.sf.jasperreports.engine.export.JRPdfExporter$InternalImageProcessor.access$300(JRPdfExporter.java:1713) at net.sf.jasperreports.engine.export.JRPdfExporter.exportImage(JRPdfExporter.java:1653) at net.sf.jasperreports.engine.export.JRPdfExporter.exportElements(JRPdfExporter.java:1267) at net.sf.jasperreports.engine.export.JRPdfExporter.exportPage(JRPdfExporter.java:1210) at net.sf.jasperreports.engine.export.JRPdfExporter.exportReportToStream(JRPdfExporter.java:1074) at net.sf.jasperreports.engine.export.JRPdfExporter.exportReport(JRPdfExporter.java:691) at enco.sox2.reportmanager.ReportCommand.export(ReportCommand.java:192) at enco.sox2.reportmanager.ReportCommand.export(ReportCommand.java:159) at enco.sox2.reportmanager.ReportManager.generateReportToStream(ReportManager.java:175) at enco.sox2.cdo.server.reports.service.CdoReportService.generateReportToStream(CdoReportService.java:87) at enco.sox2.workspace.cdo.server.internal.CreateReportIndication.responding(CreateReportIndication.java:103) at org.eclipse.emf.cdo.server.internal.net4j.protocol.CDOServerIndicationWithMonitoring.responding(CDOServerIndicationWithMonitoring.java:177) at org.eclipse.net4j.signal.IndicationWithMonitoring.responding(IndicationWithMonitoring.java:93) at org.eclipse.net4j.signal.IndicationWithResponse.doExtendedOutput(IndicationWithResponse.java:106) at org.eclipse.net4j.signal.Signal.doOutput(Signal.java:346) at org.eclipse.net4j.signal.IndicationWithResponse.execute(IndicationWithResponse.java:75) at org.eclipse.net4j.signal.IndicationWithMonitoring.execute(IndicationWithMonitoring.java:66) at org.eclipse.net4j.signal.Signal.runSync(Signal.java:283) at org.eclipse.net4j.signal.Signal.run(Signal.java:162) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) 18:01:22,388 ERROR [ReportCommand] An error occured exporting to java.io.ByteArrayOutputStream net.sf.jasperreports.engine.JRException: java.io.IOException: The byte array is not a recognized imageformat. at net.sf.jasperreports.engine.export.JRPdfExporter$InternalImageProcessor.processImageRetainShape(JRPdfExporter.java:1997) at net.sf.jasperreports.engine.export.JRPdfExporter$InternalImageProcessor.process(JRPdfExporter.java:1787) at net.sf.jasperreports.engine.export.JRPdfExporter$InternalImageProcessor.access$300(JRPdfExporter.java:1713) at net.sf.jasperreports.engine.export.JRPdfExporter.exportImage(JRPdfExporter.java:1653) at net.sf.jasperreports.engine.export.JRPdfExporter.exportElements(JRPdfExporter.java:1267) at net.sf.jasperreports.engine.export.JRPdfExporter.exportPage(JRPdfExporter.java:1210) at net.sf.jasperreports.engine.export.JRPdfExporter.exportReportToStream(JRPdfExporter.java:1074) at net.sf.jasperreports.engine.export.JRPdfExporter.exportReport(JRPdfExporter.java:691) at enco.sox2.reportmanager.ReportCommand.export(ReportCommand.java:192) at enco.sox2.reportmanager.ReportCommand.export(ReportCommand.java:159) at enco.sox2.reportmanager.ReportManager.generateReportToStream(ReportManager.java:175) at enco.sox2.cdo.server.reports.service.CdoReportService.generateReportToStream(CdoReportService.java:87) at enco.sox2.workspace.cdo.server.internal.CreateReportIndication.responding(CreateReportIndication.java:103) at org.eclipse.emf.cdo.server.internal.net4j.protocol.CDOServerIndicationWithMonitoring.responding(CDOServerIndicationWithMonitoring.java:177) at org.eclipse.net4j.signal.IndicationWithMonitoring.responding(IndicationWithMonitoring.java:93) at org.eclipse.net4j.signal.IndicationWithResponse.doExtendedOutput(IndicationWithResponse.java:106) at org.eclipse.net4j.signal.Signal.doOutput(Signal.java:346) at org.eclipse.net4j.signal.IndicationWithResponse.execute(IndicationWithResponse.java:75) at org.eclipse.net4j.signal.IndicationWithMonitoring.execute(IndicationWithMonitoring.java:66) at org.eclipse.net4j.signal.Signal.runSync(Signal.java:283) at org.eclipse.net4j.signal.Signal.run(Signal.java:162) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: java.io.IOException: The byte array is not a recognized imageformat. at com.lowagie.text.Image.getInstance(Unknown Source) at net.sf.jasperreports.engine.export.JRPdfExporter$InternalImageProcessor.processImageRetainShape(JRPdfExporter.java:1992) ... 23 more [ERROR] net.sf.jasperreports.engine.JRException: java.io.IOException: The byte array is not a recognized imageformat. !ENTRY enco.sox2.cdo.server.reports 4 0 2020-08-14 18:01:22.390 !MESSAGE net.sf.jasperreports.engine.JRException: java.io.IOException: The byte array is not a recognized imageformat. !STACK 0 enco.sox2.reportmanager.ReportException: net.sf.jasperreports.engine.JRException: java.io.IOException: The byte array is not a recognized imageformat. at enco.sox2.reportmanager.ReportCommand.export(ReportCommand.java:195) at enco.sox2.reportmanager.ReportCommand.export(ReportCommand.java:159) at enco.sox2.reportmanager.ReportManager.generateReportToStream(ReportManager.java:175) at enco.sox2.cdo.server.reports.service.CdoReportService.generateReportToStream(CdoReportService.java:87) at enco.sox2.workspace.cdo.server.internal.CreateReportIndication.responding(CreateReportIndication.java:103) at org.eclipse.emf.cdo.server.internal.net4j.protocol.CDOServerIndicationWithMonitoring.responding(CDOServerIndicationWithMonitoring.java:177) at org.eclipse.net4j.signal.IndicationWithMonitoring.responding(IndicationWithMonitoring.java:93) at org.eclipse.net4j.signal.IndicationWithResponse.doExtendedOutput(IndicationWithResponse.java:106) at org.eclipse.net4j.signal.Signal.doOutput(Signal.java:346) at org.eclipse.net4j.signal.IndicationWithResponse.execute(IndicationWithResponse.java:75) at org.eclipse.net4j.signal.IndicationWithMonitoring.execute(IndicationWithMonitoring.java:66) at org.eclipse.net4j.signal.Signal.runSync(Signal.java:283) at org.eclipse.net4j.signal.Signal.run(Signal.java:162) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: net.sf.jasperreports.engine.JRException: java.io.IOException: The byte array is not a recognized imageformat. at net.sf.jasperreports.engine.export.JRPdfExporter$InternalImageProcessor.processImageRetainShape(JRPdfExporter.java:1997) at net.sf.jasperreports.engine.export.JRPdfExporter$InternalImageProcessor.process(JRPdfExporter.java:1787) at net.sf.jasperreports.engine.export.JRPdfExporter$InternalImageProcessor.access$300(JRPdfExporter.java:1713) at net.sf.jasperreports.engine.export.JRPdfExporter.exportImage(JRPdfExporter.java:1653) at net.sf.jasperreports.engine.export.JRPdfExporter.exportElements(JRPdfExporter.java:1267) at net.sf.jasperreports.engine.export.JRPdfExporter.exportPage(JRPdfExporter.java:1210) at net.sf.jasperreports.engine.export.JRPdfExporter.exportReportToStream(JRPdfExporter.java:1074) at net.sf.jasperreports.engine.export.JRPdfExporter.exportReport(JRPdfExporter.java:691) at enco.sox2.reportmanager.ReportCommand.export(ReportCommand.java:192) ... 15 more Caused by: java.io.IOException: The byte array is not a recognized imageformat. at com.lowagie.text.Image.getInstance(Unknown Source) at net.sf.jasperreports.engine.export.JRPdfExporter$InternalImageProcessor.processImageRetainShape(JRPdfExporter.java:1992) ... 23 more

Here the .svg File for reference.

    <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE svg PUBLIC '-//W3C//DTD SVG 1.0//EN'
          'http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd'>
<svg fill-opacity="1" xmlns:xlink="http://www.w3.org/1999/xlink" color-rendering="auto" color-interpolation="auto" text-rendering="auto" stroke="black" stroke-linecap="square" width="1000" stroke-miterlimit="10" shape-rendering="auto" stroke-opacity="1" fill="black" stroke-dasharray="none" font-weight="normal" stroke-width="1" height="385" xmlns="http://www.w3.org/2000/svg" font-family="&apos;Dialog&apos;" font-style="normal" stroke-linejoin="miter" font-size="12" stroke-dashoffset="0" image-rendering="auto"
><!--Generated by the Batik Graphics2D SVG Generator--><defs id="genericDefs"
  /><g
  ><defs id="defs1"
    ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath1"
      ><path d="M659 58 L701 58 L701 91 L659 91 L659 58 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath2"
      ><path d="M659 88 L701 88 L701 121 L659 121 L659 88 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath3"
      ><path d="M319 88 L361 88 L361 91 L319 91 L319 88 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath4"
      ><path d="M19 52 L321 52 L321 128 L19 128 L19 52 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath5"
      ><path d="M24 57 L38 57 L38 89 L24 89 L24 57 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath6"
      ><path d="M-1 -8 L9 -8 L9 24 L-1 24 L-1 -8 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath7"
      ><path d="M-1 -8 L17 -8 L17 24 L-1 24 L-1 -8 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath8"
      ><path d="M55 57 L289 57 L289 89 L55 89 L55 57 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath9"
      ><path d="M298 57 L316 57 L316 89 L298 89 L298 57 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath10"
      ><path d="M24 87 L316 87 L316 123 L24 123 L24 87 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath11"
      ><path d="M26 89 L40 89 L40 121 L26 121 L26 89 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath12"
      ><path d="M54 89 L297 89 L297 121 L54 121 L54 89 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath13"
      ><path d="M699 39 L1001 39 L1001 81 L699 81 L699 39 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath14"
      ><path d="M704 44 L718 44 L718 76 L704 76 L704 44 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath15"
      ><path d="M735 44 L991 44 L991 76 L735 76 L735 44 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath16"
      ><path d="M699 99 L1001 99 L1001 141 L699 141 L699 99 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath17"
      ><path d="M704 104 L718 104 L718 136 L704 136 L704 104 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath18"
      ><path d="M735 104 L985 104 L985 136 L735 136 L735 104 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath19"
      ><path d="M359 69 L661 69 L661 111 L359 111 L359 69 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath20"
      ><path d="M364 74 L378 74 L378 106 L364 106 L364 74 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath21"
      ><path d="M395 74 L632 74 L632 106 L395 106 L395 74 Z"
      /></clipPath
      ><clipPath clipPathUnits="userSpaceOnUse" id="clipPath22"
      ><path d="M638 74 L656 74 L656 106 L638 106 L638 74 Z"
      /></clipPath
    ></defs
    ><g fill="silver" font-family="&apos;Segoe UI&apos;" stroke-linecap="butt" stroke="silver"
    ><line y2="59" fill="none" x1="660" clip-path="url(#clipPath1)" x2="699" y1="89"
      /><line y2="119" fill="none" x1="660" clip-path="url(#clipPath2)" x2="699" y1="89"
      /><line y2="89" fill="none" x1="320" clip-path="url(#clipPath3)" x2="359" y1="89"
      /><rect x="20" y="53" clip-path="url(#clipPath4)" fill="white" width="300" rx="4" ry="4" height="74" stroke="none"
      /><rect x="20" y="53" clip-path="url(#clipPath4)" fill="none" width="299" rx="4" ry="4" height="73" stroke="black"
      /><rect x="25" y="58" clip-path="url(#clipPath5)" fill="white" width="12" height="30" stroke="none"
      /><image x="0" y="0" transform="matrix(1,0,0,1,27,65)" clip-path="url(#clipPath6)" fill="white" width="8" xlink:href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAQCAYAAAArij59AAAAXklEQVR42mP8//8/
Az7AxEAADFoFBw4c+N/Z2fkfq4J9+/b9z8nJYZg3bx6mCSDJvLw8Bl1dXUwrkCUZ
GRlRFeCSBAEWEHH69GmG379/M5w7dw4ukZCQAKYZB0FcAADWfSpLwQBSHgAAAABJRU5ErkJggg==" height="16" stroke="white" preserveAspectRatio="none"
      /><rect x="27" y="58" clip-path="url(#clipPath5)" fill="none" width="7" height="29" stroke="black"
      /><image x="0" y="0" transform="matrix(1,0,0,1,37,65)" clip-path="url(#clipPath7)" fill="black" width="16" xlink:href="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAACq0lEQVR42pWTXUhT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" height="16" stroke="black" preserveAspectRatio="none"
      />
    ></g
  ></g
></svg
>

If anyone has any idea I'd be delighted to hear it! Thank you!

score 0 · Answer 1 · answered Aug 16 '20 at 17:49

The SVG fails to render because Batik relies on java.net.URL to load embedded images, and the data: scheme is not supported out of the box in Java.

To have the SVG render, you'll need to add a URLStreamHandler implementation for the data: scheme, and register it via the java.protocol.handler.pkgs system property.

The URL handler can use for instance jdatauri (you can also find on Maven).

To register it, you'll need to run Java with -Djava.protocol.handler.pkgs=net.myself.handlers

package net.myself.handlers.data;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLStreamHandler;
import java.nio.charset.StandardCharsets;

import com.github.ooxi.jdatauri.DataUri;

public class Handler extends URLStreamHandler {
    public Handler() {
    }

    @Override
    protected URLConnection openConnection(URL u) throws IOException {
        DataUri dataUri = DataUri.parse(u.toString(), StandardCharsets.UTF_8);
        byte[] data = dataUri.getData();
        return new URLConnection(u) {
            @Override
            public void connect() {             
            }

            @Override
            public InputStream getInputStream() {
                return new ByteArrayInputStream(data);
            }
        };
    }
}

Thank you for your answer. I tried it and added a "public class DataUriHandler extends URLStreamHandler {" based on your advice, but after adding `-Djava.protocol.handler.pkgs=my.path.handlers` to my launch configs it still wouldnt load that data Handler. I am by no means an expert with url connections (quite the opposite) so do I need to do more? I read that there is more to be done according to [this stack overflow answer](https://stackoverflow.com/questions/26363573/registering-and-using-a-custom-java-net-url-protocol) but I don't quite understand it. Thank you! — M. Funk, Aug 17 '20 at 13:12
You can do some reading at https://docs.oracle.com/javase/8/docs/api/java/net/URL.html#URL-java.lang.String-java.lang.String-int-java.lang.String- The class name needs to be Handler and the class package should be my.path.handlers.data — dada67, Aug 17 '20 at 15:16

Batik SVG parsing with inline base64 images in JasperReports

1 Answers1