Hapus tag root dari dokumen XML sebelum menambahkan XML ke file lain

Saya pikir (jika saya mengerti benar), Anda memerlukan sesuatu seperti ini:

def insert( parent, data ) {
  if( parent.name() == data.name() ) {
    data.children().each {
      parent.append it
    }
  }
  else {
    parent.append data
  }
}

Jadi, diberikan

def newdoc = '''<dependency>
               |    <groupId>grID</groupId>
               |    <artifactId>artID</artifactId>
               |    <version>${version.number}</version>
               |</dependency>'''.stripMargin()

def doc = '''<?xml version="1.0" encoding="UTF-8"?>
            |<project>
            |  <dependencies>
            |    <dependency>
            |        <groupId>grID1</groupId>
            |        <artifactId>artID1</artifactId>
            |        <type>jar</type>
            |        <classifier>classes</classifier>
            |    </dependency>
            |  </dependencies>
            |</project>'''.stripMargin()

def docnode = new XmlParser().parseText( doc )
def newnode = new XmlParser().parseText( newdoc )

// use head() as I want to add to the first dependencies node
insert( docnode.dependencies.head(), newnode )
println groovy.xml.XmlUtil.serialize( docnode )

Anda mendapatkan hasilnya:

<?xml version="1.0" encoding="UTF-8"?><project>
  <dependencies>
    <dependency>
      <groupId>grID1</groupId>
      <artifactId>artID1</artifactId>
      <type>jar</type>
      <classifier>classes</classifier>
    </dependency>
    <dependency>
      <groupId>grID</groupId>
      <artifactId>artID</artifactId>
      <version>${version.number}</version>
    </dependency>
  </dependencies>
</project>

Dan diberikan:

def newdoc = '''<catalogue>
               |    <message key='type_issuedate'>Date Issued</message>
               |    <message key='type_accessioneddate'>Date Accesioned</message>
               |</catalogue>'''.stripMargin()

def doc = '''<catalogue xml:lang="en" xmlns:i18n="http://apache.org/cocoon/i18n/2.1">
            |    <message key="column4">Date</message>
            |    <message key="column5">Summary</message>
            |    <message key="column6">Actions</message>
            |    <message key="restore">Restore</message>
            |    <message key="update">Update</message>
            |</catalogue>'''.stripMargin()

def docnode = new XmlParser().parseText( doc )
def newnode = new XmlParser().parseText( newdoc )

insert( docnode, newnode )
println groovy.xml.XmlUtil.serialize( docnode )

Anda mendapatkan:

<?xml version="1.0" encoding="UTF-8"?><catalogue xml:lang="en" xmlns:xml="http://www.w3.org/XML/1998/namespace">
  <message key="column4">Date</message>
  <message key="column5">Summary</message>
  <message key="column6">Actions</message>
  <message key="restore">Restore</message>
  <message key="update">Update</message>
  <message key="type_issuedate">Date Issued</message>
  <message key="type_accessioneddate">Date Accesioned</message>
</catalogue>

Sunting

Oke, jika diberi info tambahan, apakah ini membantu? Mengingat string newdoc dan doc yang sama seperti di atas, skrip ini sepertinya melakukan apa yang Anda inginkan...

import groovy.xml.*
import groovy.xml.dom.*
import org.w3c.dom.Document;
import org.xml.sax.InputSource;

Document parseWithoutDTD(Reader r, boolean validating = false, boolean namespaceAware = true) {
    FactorySupport.createDocumentBuilderFactory().with { f ->
        f.namespaceAware = namespaceAware
        f.validating = validating
        f.setFeature("http://apache.org/xml/features/nonvalidating/load-external-dtd", false);
        f.newDocumentBuilder().with { db ->
            db.parse(new InputSource(r))
        }
    }
}

def addCode  = parseWithoutDTD( new StringReader( newdoc ) ).documentElement
def document = parseWithoutDTD( new StringReader( doc ) )
def parent   = document.documentElement
def parentTags = 'catalogue'

use( DOMCategory ) {
  if( addCode.nodeName == parentTags ) {
    addCode.childNodes.each { node ->
      parent.appendChild( document.importNode( node, true ) )
    }
  }
  else {
    parent.appendChild( document.importNode( addCode, true ) )
  }
}