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    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.issues.issue9;
    18
    19  import org.yaml.snakeyaml.constructor.Constructor;
    20  import org.yaml.snakeyaml.nodes.Node;
    21  import org.yaml.snakeyaml.nodes.NodeId;
    22  import org.yaml.snakeyaml.nodes.ScalarNode;
    23  import org.yaml.snakeyaml.nodes.Tag;
    24
    25  public class BeanConstructor extends Constructor {
    26
    27      public BeanConstructor() {
    28          super(BeanHolder.class);
    29          yamlConstructors.put(new Tag(Bean1.class), new Bean1ScalarConstructor());
    30          yamlConstructors.put(new Tag(BeanHolder.class), new BeanHolderScalarConstructor());
    31      }
    32
    33      private class Bean1ScalarConstructor extends ConstructScalar {
    34          @Override
    35          public Object construct(Node node) {
    36              ScalarNode snode = (ScalarNode) node;
    37              if (snode.getValue().length() == 0) {
    38                  return new Bean1();
    39              } else {
    40                  return new Bean1(new Integer(snode.getValue()));
    41              }
    42          }
    43      }
    44
    45      private class BeanHolderScalarConstructor extends ConstructScalar {
    46          @Override
    47          public Object construct(Node node) {
    48              if (node.getNodeId() == NodeId.scalar) {
    49                  ScalarNode n = (ScalarNode) node;
    50                  String value = n.getValue();
    51                  int i = 3;
    52                  if (value.length() != 0) {
    53                      i = Integer.parseInt(value);
    54                  }
    55                  return new BeanHolder(new Bean1(i));
    56              } else {
    57                  return new BeanHolder();
    58              }
    59          }
    60      }
    61  }