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9.5. Extensible Markup Language (XML) File Sequencer

The Extensible Markup Language (XML) File Sequencer stores the structure and data of an XML file into the repository. DTD, entity, comments, and other content are maintained by the sequencer in the output structure.

9.5.1. XML File Sequencer Example
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For this XML document: 
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
<!ENTITY % RH-ENTITIES SYSTEM "Common_Config/rh-entities.ent">
<!ENTITY versionNumber "0.1">
<!ENTITY copyrightYear "2008">
<!ENTITY copyrightHolder "Red Hat Middleware, LLC.">]>
<?target content ?>
<?target2 other stuff ?>
<Cars xmlns:jcr="http://www.jcp.org/jcr/1.0">
    <!-- This is a comment -->
    <Hybrid>
        <car jcr:name="Toyota Prius"/>
    </Hybrid>
    <Sports>
    </Sports>
</Cars>
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The sequencer will generate this content (assuming its output is redirected to xml/myxml ) 
<xml jcr:primaryType=nt:unstructured
 <myxml jcr:primaryType="modexml:document"
        jcr:mixinTypes="mode:derived"
        mode:derivedAt="2011-05-13T13:12:03.925Z"
        mode:derivedFrom="/files/docForReferenceGuide.xml"
        modedtd:name="book"
        modedtd:publicId="-//OASIS//DTD DocBook XML V4.4//EN"
        modedtd:systemId="http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd">
  <modedtd:entity jcr:primaryType="modedtd:entity"
                  modedtd:name="%RH-ENTITIES"
                  modedtd:systemId="Common_Config/rh-entities.ent" />
  <modedtd:entity[2] jcr:primaryType="modedtd:entity"
                     modedtd:name="versionNumber"
                     modedtd:value="0.1" />
  <modedtd:entity[3] jcr:primaryType="modedtd:entity"
                     modedtd:name="copyrightYear"
                     modedtd:value="2008" />
  <modedtd:entity[4] jcr:primaryType="modedtd:entity"
                     modedtd:name="copyrightHolder"
                     modedtd:value="Red Hat Middleware, LLC." />
  <modexml:processingInstruction jcr:primaryType="modexml:processingInstruction"
                                 modexml:processingInstructionContent="content"
                                 modexml:target="target" />
  <modexml:processingInstruction[2] jcr:primaryType="modexml:processingInstruction"
                                    modexml:processingInstructionContent="other stuff"
                                    modexml:target="target2" />
  <Cars jcr:primaryType="modexml:element">
    <modexml:comment jcr:primaryType="modexml:comment"
                     modexml:commentContent="This is a comment" />
    <Hybrid jcr:primaryType="modexml:element">
      <car jcr:primaryType="modexml:element" />
    </Hybrid>
    <Sports jcr:primaryType="modexml:element" />
  </Cars>
</myxml>
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9.5.2. XML File Sequencer CND
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The CND used by this sequencer is provided below. Note that the XML sequencer will parse CDATA into its own node in the sequenced output even though the example above does not explicitly demonstrate this. 
//------------------------------------------------------------------------------
// N A M E S P A C E S
//------------------------------------------------------------------------------
<jcr='http://www.jcp.org/jcr/1.0'>
<nt='http://www.jcp.org/jcr/nt/1.0'>
<mix='http://www.jcp.org/jcr/mix/1.0'>
<modexml='http://www.modeshape.org/xml/1.0'>
<modedtd='http://www.modeshape.org/dtd/1.0'>

//------------------------------------------------------------------------------
// N O D E T Y P E S
//------------------------------------------------------------------------------

[modexml:document] > nt:unstructured, mix:mimeType
  - modexml:cDataContent (string)

[modexml:comment] > nt:unstructured
  - modexml:commentContent (string)

[modexml:element] > nt:unstructured

[modexml:elementContent] > nt:unstructured
  - modexml:elementContent (string)

[modexml:cData] > nt:unstructured
  - modexml:cDataContent (string)

[modexml:processingInstruction] > nt:unstructured
  - modexml:processingInstruction (string)
  - modexml:target (string)

[modedtd:entity] > nt:unstructured
  - modexml:name (string)
  - modexml:value (string)
  - modexml:publicId (string)
  - modexml:systemId (string)
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9.5.3. Using the XML File Sequencer
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To use the XML File Sequencer, include modeshape-sequencer-xml.jar in your classpath and configure your repository similar to: 
{
    "name" : "XML Sequencer Test Repository",
    "sequencing" : {
        "removeDerivedContentWithOriginal" : true,
        "sequencers" : {
            "XML Sequencer" : {
                "classname" : "xmlsequencer",
                "pathExpressions" : [ "default:/(*.xml)/jcr:content[@jcr:data] => /xml" ]
            }
        }
    }
}
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