/*
* 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.
*/
package java.util;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;
import org.xml.sax.helpers.XMLReaderFactory;
import java.io.IOException;
import java.io.InputStream;
/**
* Dynamically loaded implementation for Properties.loadFromXML(). Public so that users can add an
* explicit dependency to force load this class.
*/
public class PropertiesXmlLoader implements Properties.XmlLoader {
public void load(final Properties p, InputStream in) throws IOException,
InvalidPropertiesFormatException {
if (in == null) {
throw new NullPointerException("in == null");
}
try {
XMLReader reader = XMLReaderFactory.createXMLReader();
reader.setContentHandler(new DefaultHandler() {
private String key;
@Override
public void startElement(String uri, String localName,
String qName, Attributes attributes) throws SAXException {
key = null;
if (qName.equals("entry")) {
key = attributes.getValue("key");
}
}
@Override
public void characters(char[] ch, int start, int length)
throws SAXException {
if (key != null) {
String value = new String(ch, start, length);
p.put(key, value);
key = null;
}
}
});
reader.parse(new InputSource(in));
} catch (SAXException e) {
throw new InvalidPropertiesFormatException(e);
}
}
}