/*
* Copyright 2002-2013 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.context.support;
import java.util.Collections;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.core.convert.ConversionService;
import org.springframework.core.convert.TypeDescriptor;
import org.springframework.core.convert.converter.Converter;
import org.springframework.core.convert.converter.ConverterFactory;
import org.springframework.core.convert.converter.GenericConverter;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.FileSystemResource;
import org.springframework.tests.sample.beans.ResourceTestBean;
import static org.hamcrest.Matchers.*;
import static org.junit.Assert.*;
/**
* @author Keith Donald
* @author Juergen Hoeller
*/
public class ConversionServiceFactoryBeanTests {
@Test
public void createDefaultConversionService() {
ConversionServiceFactoryBean factory = new ConversionServiceFactoryBean();
factory.afterPropertiesSet();
ConversionService service = factory.getObject();
assertTrue(service.canConvert(String.class, Integer.class));
}
@Test
public void createDefaultConversionServiceWithSupplements() {
ConversionServiceFactoryBean factory = new ConversionServiceFactoryBean();
Set<Object> converters = new HashSet<Object>();
converters.add(new Converter<String, Foo>() {
@Override
public Foo convert(String source) {
return new Foo();
}
});
converters.add(new ConverterFactory<String, Bar>() {
@Override
public <T extends Bar> Converter<String, T> getConverter(Class<T> targetType) {
return new Converter<String, T> () {
@SuppressWarnings("unchecked")
@Override
public T convert(String source) {
return (T) new Bar();
}
};
}
});
converters.add(new GenericConverter() {
@Override
public Set<ConvertiblePair> getConvertibleTypes() {
return Collections.singleton(new ConvertiblePair(String.class, Baz.class));
}
@Override
public Object convert(Object source, TypeDescriptor sourceType, TypeDescriptor targetType) {
return new Baz();
}
});
factory.setConverters(converters);
factory.afterPropertiesSet();
ConversionService service = factory.getObject();
assertTrue(service.canConvert(String.class, Integer.class));
assertTrue(service.canConvert(String.class, Foo.class));
assertTrue(service.canConvert(String.class, Bar.class));
assertTrue(service.canConvert(String.class, Baz.class));
}
@Test(expected=IllegalArgumentException.class)
public void createDefaultConversionServiceWithInvalidSupplements() {
ConversionServiceFactoryBean factory = new ConversionServiceFactoryBean();
Set<Object> converters = new HashSet<Object>();
converters.add("bogus");
factory.setConverters(converters);
factory.afterPropertiesSet();
}
@Test
public void conversionServiceInApplicationContext() {
doTestConversionServiceInApplicationContext("conversionService.xml", ClassPathResource.class);
}
@Test
public void conversionServiceInApplicationContextWithResourceOverriding() {
doTestConversionServiceInApplicationContext("conversionServiceWithResourceOverriding.xml", FileSystemResource.class);
}
private void doTestConversionServiceInApplicationContext(String fileName, Class<?> resourceClass) {
ApplicationContext ctx = new ClassPathXmlApplicationContext(fileName, getClass());
ResourceTestBean tb = ctx.getBean("resourceTestBean", ResourceTestBean.class);
assertTrue(resourceClass.isInstance(tb.getResource()));
assertTrue(tb.getResourceArray().length > 0);
assertTrue(resourceClass.isInstance(tb.getResourceArray()[0]));
assertTrue(tb.getResourceMap().size() == 1);
assertTrue(resourceClass.isInstance(tb.getResourceMap().get("key1")));
assertTrue(tb.getResourceArrayMap().size() == 1);
assertTrue(tb.getResourceArrayMap().get("key1").length > 0);
assertTrue(resourceClass.isInstance(tb.getResourceArrayMap().get("key1")[0]));
}
public static class Foo {
}
public static class Bar {
}
public static class Baz {
}
public static class ComplexConstructorArgument {
public ComplexConstructorArgument(Map<String, Class<?>> map) {
assertTrue(!map.isEmpty());
assertThat(map.keySet().iterator().next(), instanceOf(String.class));
assertThat(map.values().iterator().next(), instanceOf(Class.class));
}
}
}