1 /** 2 * Copyright (c) 2008, http://www.snakeyaml.org 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package org.yaml.snakeyaml.representer; 17 18 import junit.framework.TestCase; 19 20 import org.yaml.snakeyaml.Yaml; 21 import org.yaml.snakeyaml.constructor.AbstractConstruct; 22 import org.yaml.snakeyaml.constructor.Constructor; 23 import org.yaml.snakeyaml.nodes.Node; 24 import org.yaml.snakeyaml.nodes.ScalarNode; 25 import org.yaml.snakeyaml.nodes.Tag; 26 27 public class RepresentTest extends TestCase { 28 29 public void testCustomRepresenter() { 30 Yaml yaml = new Yaml(new MyConstructor(), new MyRepresenter()); 31 CustomBean etalon = new CustomBean("A", 1); 32 String output = yaml.dump(etalon); 33 assertEquals("!!Dice 'Ad1'\n", output); 34 CustomBean bean = (CustomBean) yaml.load(output); 35 assertEquals("A", bean.getPrefix()); 36 assertEquals(1, bean.getSuffix()); 37 assertEquals(etalon, bean); 38 } 39 40 class CustomBean { 41 private String prefix; 42 private int suffix; 43 44 public CustomBean(String prefix, int suffix) { 45 this.prefix = prefix; 46 this.suffix = suffix; 47 } 48 49 public String getPrefix() { 50 return prefix; 51 } 52 53 public int getSuffix() { 54 return suffix; 55 } 56 57 @Override 58 public boolean equals(Object obj) { 59 CustomBean bean = (CustomBean) obj; 60 return prefix.equals(bean.getPrefix()) && suffix == bean.getSuffix(); 61 } 62 } 63 64 class MyRepresenter extends Representer { 65 public MyRepresenter() { 66 this.representers.put(CustomBean.class, new RepresentDice()); 67 } 68 69 private class RepresentDice implements Represent { 70 public Node representData(Object data) { 71 CustomBean coin = (CustomBean) data; 72 String value = coin.getPrefix() + "d" + coin.getSuffix(); 73 return representScalar(new Tag("!!Dice"), value); 74 } 75 } 76 } 77 78 class MyConstructor extends Constructor { 79 public MyConstructor() { 80 this.yamlConstructors.put(new Tag(Tag.PREFIX + "Dice"), new ConstructDice()); 81 } 82 83 private class ConstructDice extends AbstractConstruct { 84 public Object construct(Node node) { 85 String val = (String) constructScalar((ScalarNode) node); 86 return new CustomBean(val.substring(0, 1), new Integer(val.substring(2))); 87 } 88 } 89 } 90 } 91
