/**
* 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.component.xquery;
import net.sf.saxon.Configuration;
import net.sf.saxon.expr.XPathContext;
import net.sf.saxon.lib.ExtensionFunctionCall;
import net.sf.saxon.lib.ExtensionFunctionDefinition;
import net.sf.saxon.om.Item;
import net.sf.saxon.om.Sequence;
import net.sf.saxon.om.StructuredQName;
import net.sf.saxon.trans.XPathException;
import net.sf.saxon.value.SequenceType;
import net.sf.saxon.value.StringValue;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.impl.JndiRegistry;
import org.apache.camel.test.junit4.CamelTestSupport;
import org.junit.Test;
/**
* @version
*/
public class XQueryWithExtensionTest extends CamelTestSupport {
private Configuration conf;
@Override
protected JndiRegistry createRegistry() throws Exception {
JndiRegistry jndi = super.createRegistry();
conf = new Configuration();
conf.registerExtensionFunction(new SimpleExtension());
jndi.bind("saxonConf", conf);
return jndi;
}
@Test
public void testWithExtension() throws Exception {
MockEndpoint mock = getMockEndpoint("mock:result");
mock.expectedBodiesReceived("<transformed extension-function-render=\"arg1[test]\"/>");
template.sendBody("direct:start", "<body>test</body>");
assertMockEndpointsSatisfied();
}
@Override
protected RouteBuilder createRouteBuilder() throws Exception {
return new RouteBuilder() {
@Override
public void configure() throws Exception {
from("direct:start")
.to("xquery:org/apache/camel/component/xquery/transformWithExtension.xquery?configuration=#saxonConf")
.to("mock:result");
}
};
}
/**
* This is a very simple example of a saxon extension function. We will use
* this for testing purposes.
* <p/>
* Example: <code>efx:simple('some text')</code> will be rendered to
* <code>arg1[some text]</code> and returned in the XQuery response.
*/
public static final class SimpleExtension extends ExtensionFunctionDefinition {
private static final long serialVersionUID = 1L;
@Override
public SequenceType[] getArgumentTypes() {
return new SequenceType[]{SequenceType.SINGLE_STRING};
}
@Override
public SequenceType getResultType(SequenceType[] suppliedArgumentTypes) {
return SequenceType.SINGLE_STRING;
}
@Override
public StructuredQName getFunctionQName() {
return new StructuredQName("efx", "http://test/saxon/ext", "simple");
}
@Override
public ExtensionFunctionCall makeCallExpression() {
return new ExtensionFunctionCall() {
@Override
public Sequence call(XPathContext xPathContext, Sequence[] sequences) throws XPathException {
// get value of first arg passed to the function
Item arg1 = sequences[0].head();
String arg1Val = arg1.getStringValue();
// return a altered version of the first arg
return new StringValue("arg1[" + arg1Val + "]");
}
};
}
}
}