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101 lines
3.8 KiB
101 lines
3.8 KiB
/*
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* Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*/
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/*
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* Copyright 2001, 2002,2004 The Apache Software Foundation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.sun.org.apache.xerces.internal.dom;
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import com.sun.org.apache.xerces.internal.impl.xs.XSImplementationImpl;
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import org.w3c.dom.DOMImplementationList;
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import org.w3c.dom.DOMImplementation;
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import java.util.Vector;
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/**
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* Allows to retrieve <code>XSImplementation</code>, DOM Level 3 Core and LS implementations
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* and PSVI implementation.
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* <p>See also the <a href='http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407/core.html#DOMImplementationSource'>Document Object Model (DOM) Level 3 Core Specification</a>.
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*
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* @xerces.internal
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*
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* @author Elena Litani, IBM
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*/
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public class DOMXSImplementationSourceImpl
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extends DOMImplementationSourceImpl {
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/**
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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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*/
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public DOMImplementation getDOMImplementation(String features) {
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DOMImplementation impl = super.getDOMImplementation(features);
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if (impl != null){
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return impl;
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}
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// if not try the PSVIDOMImplementation
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impl = PSVIDOMImplementationImpl.getDOMImplementation();
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if (testImpl(impl, features)) {
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return impl;
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}
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// if not try the XSImplementation
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impl = XSImplementationImpl.getDOMImplementation();
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if (testImpl(impl, features)) {
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return impl;
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}
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return null;
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}
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/**
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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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* 2.0"
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* @return A list of DOM implementations that support the desired
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* features.
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*/
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public DOMImplementationList getDOMImplementationList(String features) {
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final Vector implementations = new Vector();
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// first check whether the CoreDOMImplementation would do
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DOMImplementationList list = super.getDOMImplementationList(features);
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//Add core DOMImplementations
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for (int i=0; i < list.getLength(); i++ ) {
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implementations.addElement(list.item(i));
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}
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DOMImplementation impl = PSVIDOMImplementationImpl.getDOMImplementation();
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if (testImpl(impl, features)) {
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implementations.addElement(impl);
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}
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impl = XSImplementationImpl.getDOMImplementation();
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if (testImpl(impl, features)) {
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implementations.addElement(impl);
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}
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return new DOMImplementationListImpl(implementations);
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}
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}
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