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.constructor; 17 18 import org.yaml.snakeyaml.error.YAMLException; 19 import org.yaml.snakeyaml.nodes.Node; 20 21 /** 22 * Because recursive structures are not very common we provide a way to save 23 * some typing when extending a constructor 24 */ 25 public abstract class AbstractConstruct implements Construct { 26 27 /** 28 * Fail with a reminder to provide the seconds step for a recursive 29 * structure 30 * 31 * @see org.yaml.snakeyaml.constructor.Construct#construct2ndStep(org.yaml.snakeyaml.nodes.Node, 32 * java.lang.Object) 33 */ construct2ndStep(Node node, Object data)34 public void construct2ndStep(Node node, Object data) { 35 if (node.isTwoStepsConstruction()) { 36 throw new IllegalStateException("Not Implemented in " + getClass().getName()); 37 } else { 38 throw new YAMLException("Unexpected recursive structure for Node: " + node); 39 } 40 } 41 } 42