org.apache.xerces.dom.DOMImplementationImpl Maven / Gradle / Ivy
/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 1999-2002 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Xerces" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact [email protected].
*
* 5. Products derived from this software may not be called "Apache",
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*
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 1999, International
* Business Machines, Inc., http://www.apache.org. For more
* information on the Apache Software Foundation, please see
*
* The DOM API requires that it be a real object rather than static
* methods. However, there's nothing that says it can't be a singleton,
* so that's how I've implemented it.
*
* @version $Id: DOMImplementationImpl.java,v 1.31 2004/01/29 20:59:52 elena Exp $
* @since PR-DOM-Level-1-19980818.
*/
public class DOMImplementationImpl extends CoreDOMImplementationImpl
implements DOMImplementation {
//
// Data
//
// static
/** Dom implementation singleton. */
static DOMImplementationImpl singleton = new DOMImplementationImpl();
//
// Public methods
//
/** NON-DOM: Obtain and return the single shared object */
public static DOMImplementation getDOMImplementation() {
return singleton;
}
//
// DOMImplementation methods
//
/**
* Test if the DOM implementation supports a specific "feature" --
* currently meaning language and level thereof.
*
* @param feature The package name of the feature to test.
* In Level 1, supported values are "HTML" and "XML" (case-insensitive).
* At this writing, org.apache.xerces.dom supports only XML.
*
* @param version The version number of the feature being tested.
* This is interpreted as "Version of the DOM API supported for the
* specified Feature", and in Level 1 should be "1.0"
*
* @return true iff this implementation is compatable with the
* specified feature and version.
*/
public boolean hasFeature(String feature, String version) {
boolean result = super.hasFeature(feature, version);
if (!result) {
boolean anyVersion = version == null || version.length() == 0;
if (feature.startsWith("+")) {
feature = feature.substring(1);
}
return (
(feature.equalsIgnoreCase("Events")
&& (anyVersion || version.equals("2.0")))
|| (feature.equalsIgnoreCase("MutationEvents")
&& (anyVersion || version.equals("2.0")))
|| (feature.equalsIgnoreCase("Traversal")
&& (anyVersion || version.equals("2.0")))
|| (feature.equalsIgnoreCase("Range")
&& (anyVersion || version.equals("2.0")))
|| (feature.equalsIgnoreCase("MutationEvents")
&& (anyVersion || version.equals("2.0"))));
}
return result;
} // hasFeature(String,String):boolean
/**
* Introduced in DOM Level 2.
*
* Creates an XML Document object of the specified type with its document
* element.
*
* @param namespaceURI The namespace URI of the document
* element to create, or null.
* @param qualifiedName The qualified name of the document
* element to create.
* @param doctype The type of document to be created or null.
*
* When doctype is not null, its
* Node.ownerDocument attribute is set to
* the document being created.
* @return Document A new Document object.
* @throws DOMException WRONG_DOCUMENT_ERR: Raised if doctype has
* already been used with a different document.
* @since WD-DOM-Level-2-19990923
*/
public Document createDocument(String namespaceURI,
String qualifiedName,
DocumentType doctype)
throws DOMException
{
if(namespaceURI == null && qualifiedName == null && doctype == null){
//if namespaceURI, qualifiedName and doctype are null, returned document is empty with
//no document element
return new DocumentImpl();
}
else if (doctype != null && doctype.getOwnerDocument() != null) {
String msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "WRONG_DOCUMENT_ERR", null);
throw new DOMException(DOMException.WRONG_DOCUMENT_ERR, msg);
}
DocumentImpl doc = new DocumentImpl(doctype);
Element e = doc.createElementNS( namespaceURI, qualifiedName);
doc.appendChild(e);
return doc;
}
} // class DOMImplementationImpl