/**
* 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 org.apache.camel.builder.saxon;
import javax.xml.xpath.XPathFactory;
import net.sf.saxon.xpath.XPathFactoryImpl;
import org.apache.camel.builder.xml.XPathBuilder;
import org.apache.camel.test.junit4.CamelTestSupport;
import org.junit.Test;
/**
* @version
*/
public class XPathTest extends CamelTestSupport {
@Test
public void testXPathUsingSaxon() throws Exception {
XPathFactory fac = new XPathFactoryImpl();
XPathBuilder builder = XPathBuilder.xpath("foo/bar").factory(fac);
// will evaluate as XPathConstants.NODESET and have Camel convert that to String
// this should return the String incl. xml tags
String name = builder.evaluate(context, "<foo><bar id=\"1\">cheese</bar></foo>", String.class);
assertEquals("<bar id=\"1\">cheese</bar>", name);
// will evaluate using XPathConstants.STRING which just return the text content (eg like text())
name = builder.evaluate(context, "<foo><bar id=\"1\">cheese</bar></foo>");
assertEquals("cheese", name);
}
@Test
public void testXPathFunctionSubstringUsingSaxon() throws Exception {
String xml = "<foo><bar>Hello World</bar></foo>";
XPathFactory fac = new XPathFactoryImpl();
XPathBuilder builder = XPathBuilder.xpath("substring(/foo/bar, 7)").factory(fac);
String result = builder.resultType(String.class).evaluate(context, xml, String.class);
assertEquals("World", result);
result = builder.evaluate(context, xml);
assertEquals("World", result);
}
@Test
public void testXPathFunctionTokenizeUsingSaxonXPathFactory() throws Exception {
// START SNIPPET: e1
// create a Saxon factory
XPathFactory fac = new net.sf.saxon.xpath.XPathFactoryImpl();
// create a builder to evaluate the xpath using the saxon factory
XPathBuilder builder = XPathBuilder.xpath("tokenize(/foo/bar, '_')[2]").factory(fac);
// evaluate as a String result
String result = builder.evaluate(context, "<foo><bar>abc_def_ghi</bar></foo>");
assertEquals("def", result);
// END SNIPPET: e1
}
@Test
public void testXPathFunctionTokenizeUsingObjectModel() throws Exception {
// START SNIPPET: e2
// create a builder to evaluate the xpath using saxon based on its object model uri
XPathBuilder builder = XPathBuilder.xpath("tokenize(/foo/bar, '_')[2]").objectModel("http://saxon.sf.net/jaxp/xpath/om");
// evaluate as a String result
String result = builder.evaluate(context, "<foo><bar>abc_def_ghi</bar></foo>");
assertEquals("def", result);
// END SNIPPET: e2
}
@Test
public void testXPathFunctionTokenizeUsingSaxon() throws Exception {
// START SNIPPET: e3
// create a builder to evaluate the xpath using saxon
XPathBuilder builder = XPathBuilder.xpath("tokenize(/foo/bar, '_')[2]").saxon();
// evaluate as a String result
String result = builder.evaluate(context, "<foo><bar>abc_def_ghi</bar></foo>");
assertEquals("def", result);
// END SNIPPET: e3
}
@Test
public void testXPathFunctionTokenizeUsingSystemProperty() throws Exception {
// START SNIPPET: e4
// set system property with the XPath factory to use which is Saxon
System.setProperty(XPathFactory.DEFAULT_PROPERTY_NAME + ":" + "http://saxon.sf.net/jaxp/xpath/om", "net.sf.saxon.xpath.XPathFactoryImpl");
// create a builder to evaluate the xpath using saxon
XPathBuilder builder = XPathBuilder.xpath("tokenize(/foo/bar, '_')[2]");
// evaluate as a String result
String result = builder.evaluate(context, "<foo><bar>abc_def_ghi</bar></foo>");
assertEquals("def", result);
// END SNIPPET: e4
}
}