/*
* Copyright 2008-2014 the original author or authors.
*
* Licensed 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.springframework.batch.item.xml;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import javax.xml.stream.XMLEventReader;
import javax.xml.stream.events.Attribute;
import javax.xml.stream.events.StartElement;
import javax.xml.transform.Source;
import org.junit.runners.JUnit4;
import org.junit.runner.RunWith;
import org.springframework.batch.item.AbstractItemStreamItemReaderTests;
import org.springframework.batch.item.ExecutionContext;
import org.springframework.batch.item.ItemReader;
import org.springframework.batch.item.sample.Foo;
import org.springframework.core.io.ByteArrayResource;
import org.springframework.oxm.Unmarshaller;
import org.springframework.oxm.XmlMappingException;
@RunWith(JUnit4.class)
public class StaxEventItemReaderCommonTests extends AbstractItemStreamItemReaderTests {
private final static String FOOS = "<foos> <foo value=\"1\"/> <foo value=\"2\"/> <foo value=\"3\"/> <foo value=\"4\"/> <foo value=\"5\"/> </foos>";
@Override
protected ItemReader<Foo> getItemReader() throws Exception {
StaxEventItemReader<Foo> reader = new StaxEventItemReader<Foo>();
reader.setResource(new ByteArrayResource(FOOS.getBytes()));
reader.setFragmentRootElementName("foo");
reader.setUnmarshaller(new Unmarshaller() {
@Override
public Object unmarshal(Source source) throws XmlMappingException, IOException {
Attribute attr = null ;
try {
XMLEventReader eventReader = StaxUtils.getXmlEventReader( source);
assertTrue(eventReader.nextEvent().isStartDocument());
StartElement event = eventReader.nextEvent().asStartElement();
attr = (Attribute) event.getAttributes().next();
}
catch (Exception e) {
throw new RuntimeException(e);
}
Foo foo = new Foo();
foo.setValue(Integer.parseInt(attr.getValue()));
return foo;
}
@Override
public boolean supports(Class<?> clazz) {
return true;
}
});
reader.setSaveState(true);
reader.afterPropertiesSet();
return reader;
}
@Override
protected void pointToEmptyInput(ItemReader<Foo> tested) throws Exception {
StaxEventItemReader<Foo> reader = (StaxEventItemReader<Foo>) tested;
reader.close();
reader.setResource(new ByteArrayResource("<foos />".getBytes()));
reader.afterPropertiesSet();
reader.open(new ExecutionContext());
}
}