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Mojo's JAXB-2 Maven plugin is used to create an object graph from XSDs based on the JAXB 2.x implementation and to generate XSDs from JAXB annotated Java classes.

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package org.codehaus.mojo.jaxb2.helpers;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import org.w3c.dom.Attr;
import org.w3c.dom.Element;
import org.w3c.dom.Node;

import javax.xml.XMLConstants;
import java.util.Map;

/**
 * NodeProcessor which alters the filename for generated XML schema files.
 * The ChangeNamespacePrefixProcessor alters the following:
 * 

*

*
Schema Import Definitions
*
<xs:import namespace="http://some/namespace" schemaLocation="schema2.xsd"/> is * altered to * <xs:import namespace="http://some/namespace" schemaLocation="anotherFile.xsd"/>
*
* * @author Lennart Jörelid */ public class ChangeFilenameProcessor implements NodeProcessor { // Constants private static final String SCHEMA_LOCATION = "schemaLocation"; private static final String IMPORT = "import"; private static final String NAMESPACE = "namespace"; // Internal state private Map namespaceUriToNewFilenameMap; /** * Creates a new ChangeFilenameProcessor using the provided map relating namespace URIs to * desired new filenames. * * @param namespaceUriToNewFilenameMap A map relating namespace URIs [key] to * new/desired schema filenames [value]. */ public ChangeFilenameProcessor( Map namespaceUriToNewFilenameMap ) { this.namespaceUriToNewFilenameMap = namespaceUriToNewFilenameMap; } /** {@inheritDoc} */ public boolean accept( Node aNode ) { return aNode instanceof Attr && isSchemaLocationAttributeForKnownNamespaceUri( (Attr) aNode ); } /** {@inheritDoc} */ public void process( Node aNode ) { // Only attributes are permitted here. Attr attribute = (Attr) aNode; // Change the fileName. String newFilename = namespaceUriToNewFilenameMap.get( getNamespace( attribute ) ); attribute.setValue( newFilename ); } // // Private helpers // /** * Discovers if the provided attribute is a schemaLocation definition, which should * be changed by this ChangeFilenameProcessor. Such an attribute is on the form * <xs:import namespace="http://a/registered/namespace" schemaLocation="schema1.xsd"/>. * * @param attribute the attribute to test. * @return true if the provided attribute is a schemaLocation definition * whose namespace is known to this ChangeFilenameProcessor. */ private boolean isSchemaLocationAttributeForKnownNamespaceUri( final Attr attribute ) { final Element parent = attribute.getOwnerElement(); // return ( XMLConstants.W3C_XML_SCHEMA_NS_URI.equals( parent.getNamespaceURI() ) && IMPORT.equalsIgnoreCase( parent.getLocalName() ) && namespaceUriToNewFilenameMap.containsKey( getNamespace( attribute ) ) && SCHEMA_LOCATION.equals( attribute.getName() ) ); } /** * Retrieves the value of the "namespace" attribute found within the parent element of the provided attribute. * * @param attribute An attribute defined within the parent holding the "namespace" attribute. * @return The value of the "namespace" attribute. */ private String getNamespace( final Attr attribute ) { final Element parent = attribute.getOwnerElement(); return parent.getAttribute( NAMESPACE ); } }




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