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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 examples.staticstate;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import junit.framework.TestCase;
import org.yaml.snakeyaml.DumperOptions;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.constructor.Constructor;
import org.yaml.snakeyaml.introspector.Property;
import org.yaml.snakeyaml.nodes.MappingNode;
import org.yaml.snakeyaml.nodes.Node;
import org.yaml.snakeyaml.nodes.NodeTuple;
import org.yaml.snakeyaml.nodes.ScalarNode;
import org.yaml.snakeyaml.nodes.Tag;
import org.yaml.snakeyaml.representer.Representer;
/**
* Example with static fields
*/
public class StaticFieldsTest extends TestCase {
public void testAsJavaBean() {
JavaBeanWithStaticState bean = new JavaBeanWithStaticState();
bean.setName("Bahrack");
bean.setAge(-47);
JavaBeanWithStaticState.setType("Represent");
JavaBeanWithStaticState.color = "Black";
Yaml yaml = new Yaml();
String output = yaml.dump(bean);
// System.out.println(output);
assertEquals("!!examples.staticstate.JavaBeanWithStaticState {age: -47, name: Bahrack}\n",
output);
// parse back to instance
JavaBeanWithStaticState bean2 = yaml.load(output);
assertEquals(-47, bean2.getAge());
assertEquals("Bahrack", bean2.getName());
}
public void testCustomDump() {
JavaBeanWithStaticState bean = new JavaBeanWithStaticState();
bean.setName("Lui");
bean.setAge(25);
JavaBeanWithStaticState.setType("Represent");
JavaBeanWithStaticState.color = "Black";
Yaml yaml = new Yaml(new MyRepresenter(), new DumperOptions());
String output = yaml.dump(bean);
// System.out.println(output);
assertEquals(
"!!examples.staticstate.JavaBeanWithStaticState {age: 25, name: Lui, color: Black,\n type: Represent}\n",
output);
}
public void testCustomLoad() {
Yaml yaml = new Yaml(new MyConstructor());
String output =
"!!examples.staticstate.JavaBeanWithStaticState {age: 25, name: Lui, color: Oranje,\n type: King}\n";
JavaBeanWithStaticState bean2 = yaml.load(output);
assertEquals(25, bean2.getAge());
assertEquals("Lui", bean2.getName());
assertEquals("Oranje", JavaBeanWithStaticState.color);
assertEquals("King", JavaBeanWithStaticState.getType());
}
private class MyRepresenter extends Representer {
@Override
protected MappingNode representJavaBean(Set<Property> properties, Object javaBean) {
MappingNode node = super.representJavaBean(properties, javaBean);
if (javaBean instanceof JavaBeanWithStaticState) {
List<NodeTuple> value = node.getValue();
value.add(
new NodeTuple(representData("color"), representData(JavaBeanWithStaticState.color)));
value.add(
new NodeTuple(representData("type"), representData(JavaBeanWithStaticState.getType())));
}
return node;
}
}
private class MyConstructor extends Constructor {
private final Tag JBWSS = new Tag(JavaBeanWithStaticState.class);
protected Object constructObject(Node node) {
if (JavaBeanWithStaticState.class.isAssignableFrom(node.getType())
|| JBWSS.equals(node.getTag())) {
MappingNode beanNode = (MappingNode) node;
List<NodeTuple> value = beanNode.getValue();
List<NodeTuple> removed = new ArrayList<NodeTuple>();
for (NodeTuple tuple : value) {
ScalarNode keyNode = (ScalarNode) tuple.getKeyNode();
if (keyNode.getValue().equals("color")) {
ScalarNode valueNode = (ScalarNode) tuple.getValueNode();
JavaBeanWithStaticState.color = valueNode.getValue();
} else if (keyNode.getValue().equals("type")) {
ScalarNode valueNode = (ScalarNode) tuple.getValueNode();
JavaBeanWithStaticState.setType(valueNode.getValue());
} else {
removed.add(tuple);
}
}
beanNode.setValue(removed);
JavaBeanWithStaticState bean = (JavaBeanWithStaticState) super.constructObject(beanNode);
return bean;
} else {
return super.constructObject(node);
}
}
}
}
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