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/**
* Copyright (c) 2008, SnakeYAML
*
* 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.yaml.snakeyaml.issues.issue307;
import java.lang.annotation.Annotation;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Comparator;
import java.util.Set;
import java.util.TreeSet;
import junit.framework.TestCase;
import org.yaml.snakeyaml.Util;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.introspector.BeanAccess;
import org.yaml.snakeyaml.introspector.Property;
import org.yaml.snakeyaml.introspector.PropertyUtils;
import org.yaml.snakeyaml.representer.Representer;
public class OrderTest extends TestCase {
public void test_order() {
Representer representer = new Representer();
representer.setPropertyUtils(new OrderUtil());
Yaml yaml = new Yaml(representer);
String s = Util.getLocalResource("issues/issue307-order.yaml");
OrderBean orderBean = yaml.loadAs(s, OrderBean.class);
String dump = yaml.dump(orderBean);
// System.out.println(dump);
String str = "!!org.yaml.snakeyaml.issues.issue307.OrderBean\n" + "name: tian\n"
+ "type: {z: 256, y: 255, x: 254}\n" + "age: 22\n" + "text: omit\n";
assertEquals(str, dump);
}
public void test_extend_order() {
Representer representer = new Representer();
representer.setPropertyUtils(new OrderUtil());
Yaml yaml = new Yaml(representer);
String s = Util.getLocalResource("issues/issue307-order.yaml");
CustomerBean orderBean2 = yaml.loadAs(s, CustomerBean.class);
orderBean2.setCustomerName("customer");
String dump = yaml.dump(orderBean2);
// System.out.println(dump);
String str = "!!org.yaml.snakeyaml.issues.issue307.CustomerBean\n" + "customerName: customer\n"
+ "name: tian\n" + "type: {z: 256, y: 255, x: 254}\n" + "age: 22\n" + "text: omit\n";
assertEquals(str, dump);
}
public static class OrderUtil extends PropertyUtils {
@Override
protected Set<Property> createPropertySet(final Class<?> type, BeanAccess bAccess) {
Set<Property> properties = new TreeSet<>(new Comparator<Property>() {
@Override
public int compare(Property prop1, Property prop2) {
Integer order1 = getValue(prop1.getName(), type);
Integer order2 = getValue(prop2.getName(), type);
if (order1 == null) {
order1 = 0;
}
if (order2 == null) {
order2 = 0;
}
if (order1 < order2) {
return -1;
}
if (order1 > order2) {
return 1;
}
return prop1.getName().compareTo(prop2.getName());
}
});
properties.addAll(super.createPropertySet(type, bAccess));
return properties;
}
public Integer getValue(String name, Class<?> type) {
PropertyUtils propertyUtils = new PropertyUtils();
propertyUtils.setBeanAccess(BeanAccess.FIELD);
Property property = propertyUtils.getProperty(type, name);
Annotation annotation = property.getAnnotation(OrderAnnotation.class);
Integer invoke = null;
if (annotation != null) {
try {
Method method = annotation.annotationType().getDeclaredMethod("order");
invoke = (Integer) method.invoke(annotation, null);
} catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
e.printStackTrace();
}
}
return invoke;
}
}
}
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