/*
* 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
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*/
package org.apache.abdera.examples.xsltxpath;
import java.io.InputStream;
import org.apache.abdera.Abdera;
import org.apache.abdera.model.Document;
import org.apache.abdera.model.Feed;
import org.apache.abdera.parser.Parser;
import org.apache.abdera.xpath.XPath;
public class XPathExample {
public static void main(String[] args) throws Exception {
Abdera abdera = new Abdera();
Parser parser = abdera.getParser();
XPath xpath = abdera.getXPath();
InputStream in = XPathExample.class.getResourceAsStream("/simple.xml");
Document<Feed> doc = parser.parse(in);
Feed feed = doc.getRoot();
System.out.println(xpath.evaluate("count(/a:feed)", feed)); // 1.0
System.out.println(xpath.numericValueOf("count(/a:feed)", feed)); // 1.0
System.out.println(xpath.booleanValueOf("/a:feed/a:entry", feed)); // true (the feed has an entry)
System.out.println(xpath.valueOf("/a:feed/a:entry/a:title", feed)); // Atom-Powered Robots Run Amok
System.out.println(xpath.selectNodes("/a:feed/a:entry", feed)); // every entry
System.out.println(xpath.selectSingleNode("/a:feed", feed));
System.out.println(xpath.selectSingleNode("..", feed.getTitleElement()));
System.out.println(xpath.selectSingleNode("ancestor::*", feed.getEntries().get(0)));
System.out.println(xpath.valueOf("concat('The feed is is ',/a:feed/a:id)", feed)); // "The feed is is urn:uuid:60a76c80-d399-11d9-b93C-0003939e0af6"
}
}