?
Solved

Processing Base 64 Image in XML

Posted on 2013-06-25
1
Medium Priority
?
403 Views
Last Modified: 2013-07-23
Experts,

How can I process Binary ImageData using Saxon and output a file?  I want to include the filepath in the XML to the image.

Below is my XSLT file, which works perfectly and attached is a sample XML.

<!-- Begin XST Style Sheet -->


<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:saxon="http://saxon.sf.net/" exclude-result-prefixes="saxon" xmlns:fos="java.io.FileOutputStream">
  
  <!-- Indent in the output -->
  <xsl:output indent="yes"/>
  
  <!-- Match the root -->
  <xsl:template match="ProcessImage">
    <Import> <!-- Insert our Import Node -->
      <Archive ConnectionID="1" Name="1"> <!-- Define our Application Connection String -->
        <Document pass="True"> <!-- Statically set documents to pass -->
          <xsl:for-each select="Pages/Page"> <!-- Ignore -->
            <DocFile FileLoc="{@FileName}" /> <!-- Ignore -->
          </xsl:for-each>
          <xsl:apply-templates select="DataArea/Image/Detail"/>
        </Document>
      </Archive>
    </Import>
  </xsl:template>
  
  <xsl:template match="Detail">
    <DocFile FileLoc="C:\SHARE FOLDER\SCANNED FILES\Scan{format-number(position() - 1, '0000')}.tif" /> <!-- Get the Filepath, give it a filename based on its position in the XML -->
    <Fields>
      <xsl:apply-templates select="parent::Image/Header/*[not(self::Count)]"/> <!-- Get Header Data, Ignore Count Node if Present, Apply Templates at bottom of XSL -->
      <xsl:apply-templates select="*[not(self::ImageData)]"/> <!-- Ignore Image Data Node if Present -->
    </Fields>
  </xsl:template>
  
  <xsl:template match="Header/* | Detail/*">  <!-- Match Header OR Detail Child Elements -->
    <Field Name="{name()}" value="{.}" pass="True"/>
  </xsl:template>
  <!-- Get Image Data
  <xsl:template match="ProcessImage">
   <xsl:variable name="img" select="ImageData"/>
   <xsl:variable name="fos" select="fos:new(string($img))"/>
   <xsl:value-of select="fos:write($fos,saxon:base64Binary-to-octets(xs:base64Binary(my-base64-encoded-image)))"/>
   <xsl:value-of select="fos:close($fos)"/>
</xsl:template>
  -->
</xsl:stylesheet>

Open in new window

sample.xml
0
Comment
Question by:lm1189
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 60

Accepted Solution

by:
Geert Bormans earned 1500 total points
ID: 39277504
<!-- Begin XST Style Sheet -->
<xsl:stylesheet 
  version="2.0" 
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
  xmlns:saxon="http://saxon.sf.net/" 
  xmlns:xs="http://www.w3.org/2001/XMLSchema"
  exclude-result-prefixes="saxon" 
  xmlns:fos="java.io.FileOutputStream">
  
  <!-- Indent in the output -->
  <xsl:output indent="yes"/>
  
  <!-- Match the root -->
  <xsl:template match="ProcessImage">
    <Import> <!-- Insert our Import Node -->
      <Archive ConnectionID="1" Name="1"> <!-- Define our Application Connection String -->
        <Document pass="True"> <!-- Statically set documents to pass -->
          <xsl:for-each select="Pages/Page"> <!-- Ignore -->
            <DocFile FileLoc="{@FileName}" /> <!-- Ignore -->
          </xsl:for-each>
          <xsl:apply-templates select="DataArea/Image/Detail"/>
        </Document>
      </Archive>
    </Import>
  </xsl:template>
  
  <xsl:template match="Detail">
    <DocFile FileLoc="C:\SHARE FOLDER\SCANNED FILES\Scan{format-number(position() - 1, '0000')}.tif" /> <!-- Get the Filepath, give it a filename based on its position in the XML -->
    <Fields>
      <xsl:apply-templates select="parent::Image/Header/*[not(self::Count)]"/> <!-- Get Header Data, Ignore Count Node if Present, Apply Templates at bottom of XSL -->
      <xsl:apply-templates select="*"/>
    </Fields>
  </xsl:template>
  
  <xsl:template match="Header/* | Detail/*[not(self::ImageData)]">  <!-- Match Header OR Detail Child Elements -->
    <Field Name="{name()}" value="{.}" pass="True"/>
  </xsl:template>

  <xsl:template match="Detail/ImageData">
   <xsl:variable name="img" select="concat('file:///c:/test', format-number(count(parent::Detail/preceding-sibling::Detail), '0000'), '.jpg')"/>
  <xsl:variable name="fos" select="fos:new(string($img))"/>
   <xsl:value-of select="
     fos:write($fos,
     saxon:base64Binary-to-octets(xs:base64Binary(.)))"/>
   <xsl:value-of select="fos:close($fos)"/>
</xsl:template>
 </xsl:stylesheet>

Open in new window


I changed your code a bit so at least the XSLT is correct and does what you expect.
But I can't get it to work since I somewhere have a second copy of FileOutputStream on my classpath and I can't get that message out
Note that your base64 snippets are not correct too
0

Featured Post

Quiz: What Do These Organizations Have In Common?

Hint: Their teams ended up taking quizzes, too.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Many times as a report developer I've been asked to display normalized data such as three rows with values Jack, Joe, and Bob as a single comma-separated string such as 'Jack, Joe, Bob', and vice versa.  Here's how to do it. 
Create a Windows 10 custom Image with custom task bar and custom start menu using XML for deployment.
This is my first video review of Microsoft Bookings, I will be doing a part two with a bit more information, but wanted to get this out to you folks.
In this video you will find out how to export Office 365 mailboxes using the built in eDiscovery tool. Bear in mind that although this method might be useful in some cases, using PST files as Office 365 backup is troublesome in a long run (more on t…

765 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question