1 /** 2 * Copyright (c) 2008-2011, 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 17 package org.yaml.snakeyaml.constructor; 18 19 import org.yaml.snakeyaml.error.YAMLException; 20 import org.yaml.snakeyaml.nodes.Node; 21 22 /** 23 * Because recursive structures are not very common we provide a way to save 24 * some typing when extending a constructor 25 */ 26 public abstract class AbstractConstruct implements Construct { 27 28 /** 29 * Fail with a reminder to provide the seconds step for a recursive 30 * structure 31 * 32 * @see org.yaml.snakeyaml.constructor.Construct#construct2ndStep(org.yaml.snakeyaml.nodes.Node, 33 * java.lang.Object) 34 */ 35 public void construct2ndStep(Node node, Object data) { 36 if (node.isTwoStepsConstruction()) { 37 throw new IllegalStateException("Not Implemented in " + getClass().getName()); 38 } else { 39 throw new YAMLException("Unexpected recursive structure for Node: " + node); 40 } 41 } 42 }