| /** |
| * Copyright (c) 2008, 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.partialconstruct; |
| |
| import org.yaml.snakeyaml.composer.Composer; |
| 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.parser.Parser; |
| import org.yaml.snakeyaml.resolver.Resolver; |
| |
| class FragmentComposer extends Composer { |
| String nodeName; |
| |
| public FragmentComposer(Parser parser, Resolver resolver, String nodeName) { |
| super(parser, resolver); |
| this.nodeName = nodeName; |
| } |
| |
| @Override |
| public Node getSingleNode() { |
| Node node = super.getSingleNode(); |
| if (!MappingNode.class.isAssignableFrom(node.getClass())) { |
| throw new RuntimeException( |
| "Document is not structured as expected. Root element should be a map!"); |
| } |
| MappingNode root = (MappingNode) node; |
| for (NodeTuple tuple : root.getValue()) { |
| Node keyNode = tuple.getKeyNode(); |
| if (ScalarNode.class.isAssignableFrom(keyNode.getClass())) { |
| if (((ScalarNode) keyNode).getValue().equals(nodeName)) { |
| return tuple.getValueNode(); |
| } |
| } |
| } |
| throw new RuntimeException("Did not find key \"" + nodeName + "\" in document-level map"); |
| } |
| } |