/**
* Copyright (c) 2008-2012, http://www.snakeyaml.org
*
* 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.issue97;
import java.util.Collection;
import java.util.Set;
import java.util.SortedSet;
import java.util.TreeSet;
import junit.framework.Assert;
import junit.framework.TestCase;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.constructor.Constructor;
import org.yaml.snakeyaml.error.YAMLException;
import org.yaml.snakeyaml.introspector.BeanAccess;
import org.yaml.snakeyaml.nodes.Node;
import org.yaml.snakeyaml.nodes.NodeId;
import org.yaml.snakeyaml.nodes.SequenceNode;
public class YamlSortedSetTest extends TestCase {
public void testYaml() {
String serialized = "!!org.yaml.snakeyaml.issues.issue97.Blog\n" + "posts:\n"
+ " - text: Dummy\n" + " title: Test\n" + " - text: Creative\n"
+ " title: Highly\n";
// System.out.println(serialized);
Yaml yaml2 = constructYamlParser();
Blog rehydrated = (Blog) yaml2.load(serialized);
checkTestBlog(rehydrated);
}
protected Yaml constructYamlParser() {
Yaml yaml = new Yaml(new SetContructor());
yaml.setBeanAccess(BeanAccess.FIELD);
return yaml;
}
protected void checkTestBlog(Blog blog) {
Set<Post> posts = blog.getPosts();
Assert.assertEquals("Blog contains 2 posts", 2, posts.size());
}
private class SetContructor extends Constructor {
public SetContructor() {
yamlClassConstructors.put(NodeId.sequence, new ConstructSetFromSequence());
}
private class ConstructSetFromSequence extends ConstructSequence {
@Override
public Object construct(Node node) {
if (SortedSet.class.isAssignableFrom(node.getType())) {
if (node.isTwoStepsConstruction()) {
throw new YAMLException("Set cannot be recursive.");
} else {
Collection<Object> result = new TreeSet<Object>();
SetContructor.this.constructSequenceStep2((SequenceNode) node, result);
return result;
}
} else {
return super.construct(node);
}
}
}
}
}