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* The Apache Software License, Version 1.1
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* Copyright (c) 2001, 2002 The Apache Software Foundation. All rights
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* 3. The end-user documentation included with the redistribution,
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* if any, must include the following acknowledgment:
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* "This product includes software developed by the
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* Apache Software Foundation (http://www.apache.org/)."
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* Alternately, this acknowledgment may appear in the software itself,
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* if and wherever such third-party acknowledgments normally appear.
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* 4. The names "Xerces" and "Apache Software Foundation" must
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* not be used to endorse or promote products derived from this
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* software without prior written permission. For written
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* permission, please contact apache@apache.org.
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* 5. Products derived from this software may not be called "Apache",
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* nor may "Apache" appear in their name, without prior written
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* permission of the Apache Software Foundation.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* ====================================================================
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation and was
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* originally based on software copyright (c) 1999, International
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* Business Machines, Inc., http://www.apache.org. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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package org.apache.xerces.dom;
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import java.util.StringTokenizer;
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import org.apache.xerces.dom3.DOMImplementationList;
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import org.apache.xerces.dom3.DOMImplementationSource;
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import org.apache.xerces.dom3.bootstrap.DOMImplementationListImpl;
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import org.w3c.dom.DOMImplementation;
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* Supply one the right implementation, based upon requested features. Each
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* implemented <code>DOMImplementationSource</code> object is listed in the
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* binding-specific list of available sources so that its
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* <code>DOMImplementation</code> objects are made available.
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* <p>See also the <a href='http://www.w3.org/2001/10/WD-DOM-Level-3-Core-20011017'>Document Object Model (DOM) Level 3 Core Specification</a>.
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* @version $Id: DOMImplementationSourceImpl.java,v 1.13 2003/11/18 23:47:42 elena Exp $
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public class DOMImplementationSourceImpl
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implements DOMImplementationSource {
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* A method to request a DOM implementation.
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* @param features A string that specifies which features are required.
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* This is a space separated list in which each feature is specified
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* by its name optionally followed by a space and a version number.
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* This is something like: "XML 1.0 Traversal Events 2.0"
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* @return An implementation that has the desired features, or
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* <code>null</code> if this source has none.
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public DOMImplementation getDOMImplementation(String features) {
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// first check whether the CoreDOMImplementation would do
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DOMImplementation impl =
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CoreDOMImplementationImpl.getDOMImplementation();
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if (testImpl(impl, features)) {
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// if not try the DOMImplementation
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impl = DOMImplementationImpl.getDOMImplementation();
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if (testImpl(impl, features)) {
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* DOM Level 3 Core - CR
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* A method to request a list of DOM implementations that support the
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* specified features and versions, as specified in .
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* @param features A string that specifies which features and versions
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* are required. This is a space separated list in which each feature
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* is specified by its name optionally followed by a space and a
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* version number. This is something like: "XML 3.0 Traversal +Events
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* @return A list of DOM implementations that support the desired
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public DOMImplementationList getDOMImplementationList(String features) {
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// first check whether the CoreDOMImplementation would do
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DOMImplementation impl = CoreDOMImplementationImpl.getDOMImplementation();
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DOMImplementationListImpl list = new DOMImplementationListImpl();
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if (testImpl(impl, features)) {
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impl = DOMImplementationImpl.getDOMImplementation();
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if (testImpl(impl, features)) {
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boolean testImpl(DOMImplementation impl, String features) {
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StringTokenizer st = new StringTokenizer(features);
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String feature = null;
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String version = null;
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if (st.hasMoreTokens()) {
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feature = st.nextToken();
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while (feature != null) {
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boolean isVersion = false;
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if (st.hasMoreTokens()) {
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version = st.nextToken();
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c = version.charAt(0);
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case '0': case '1': case '2': case '3': case '4':
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case '5': case '6': case '7': case '8': case '9':
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if (!impl.hasFeature(feature, version)) {
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if (st.hasMoreTokens()) {
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feature = st.nextToken();
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if (!impl.hasFeature(feature, null)) {
added
removed
src/org/apache/xerces/dom/DOMImplementationSourceImpl.java
