/*
* Copyright 2003,2004 The Apache Software Foundation.
*
* Licensed 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.
*/
package com.sun.org.apache.xerces.internal.impl.xs;
import com.sun.org.apache.xerces.internal.dom.CoreDOMImplementationImpl;
import com.sun.org.apache.xerces.internal.dom.DOMMessageFormatter;
import com.sun.org.apache.xerces.internal.impl.xs.util.StringListImpl;
import com.sun.org.apache.xerces.internal.xs.StringList;
import com.sun.org.apache.xerces.internal.xs.XSException;
import com.sun.org.apache.xerces.internal.xs.XSImplementation;
import com.sun.org.apache.xerces.internal.xs.XSLoader;
import org.w3c.dom.DOMImplementation;
/**
* Implements XSImplementation interface that allows one to retrieve an instance of <code>XSLoader</code>.
* This interface should be implemented on the same object that implements
* DOMImplementation.
*
* @xerces.internal
*
* @author Elena Litani, IBM
* @version $Id: XSImplementationImpl.java,v 1.2.6.1 2005/09/09 07:30:56 sunithareddy Exp $
*/
public class XSImplementationImpl extends CoreDOMImplementationImpl
implements XSImplementation {
//
// Data
//
// static
/** Dom implementation singleton. */
static XSImplementationImpl singleton = new XSImplementationImpl();
//
// 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, com.sun.org.apache.xerces.internal.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) {
return (feature.equalsIgnoreCase("XS-Loader") && (version == null || version.equals("1.0")) ||
super.hasFeature(feature, version));
} // hasFeature(String,String):boolean
/* (non-Javadoc)
* @see com.sun.org.apache.xerces.internal.xs.XSImplementation#createXSLoader(com.sun.org.apache.xerces.internal.xs.StringList)
*/
public XSLoader createXSLoader(StringList versions) throws XSException {
XSLoader loader = new XSLoaderImpl();
if (versions == null){
return loader;
}
for (int i=0; i<versions.getLength();i++){
if (!versions.item(i).equals("1.0")){
String msg =
DOMMessageFormatter.formatMessage(
DOMMessageFormatter.DOM_DOMAIN,
"FEATURE_NOT_SUPPORTED",
new Object[] { versions.item(i) });
throw new XSException(XSException.NOT_SUPPORTED_ERR, msg);
}
}
return loader;
}
/* (non-Javadoc)
* @see com.sun.org.apache.xerces.internal.xs.XSImplementation#getRecognizedVersions()
*/
public StringList getRecognizedVersions() {
StringListImpl list = new StringListImpl(new String[]{"1.0"}, 1);
return list;
}
} // class XSImplementationImpl