/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. 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. For additional information regarding
* copyright in this work, please see the NOTICE file in the top level
* directory of this distribution.
*/
package org.apache.abdera.examples.simple;
import java.net.URI;
import javax.xml.namespace.QName;
import org.apache.abdera.filter.ParseFilter;
import org.apache.abdera.model.Document;
import org.apache.abdera.model.Feed;
import org.apache.abdera.parser.Parser;
import org.apache.abdera.parser.ParserOptions;
import org.apache.abdera.parser.stax.FOMException;
import org.apache.abdera.util.BlackListParseFilter;
public class UnacceptableElementsExample {
public static void main(String[] args) throws Exception {
/**
* By subclassing BlackListParseFilter, we can throw an error
* when the parsed XML contains any content we don't want
*/
ParseFilter exceptionFilter = new BlackListParseFilter() {
@Override
public boolean acceptable(QName qname) {
boolean answer = super.acceptable(qname);
if (!(answer)) {
throw new FOMException("Unacceptable element ::" + qname);
}
return answer;
}
@Override
public boolean acceptableAttribute(QName qname, QName attribute) {
return true;
}
};
exceptionFilter.add(new QName("http://example.org", "a"));
ParserOptions options = Parser.INSTANCE.getDefaultParserOptions();
options.setParseFilter(exceptionFilter);
Document<Feed> doc = Parser.INSTANCE.parse(
UnacceptableElementsExample.class.getResourceAsStream("/xmlcontent.xml"),
(URI)null, options);
// this will throw a FOMException
doc.writeTo(System.out);
}
}