/**

  * Copyright (c) 2008-2011, 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;

 import java.io.InputStream;

 import java.io.Reader;

 import java.io.StringReader;

 import org.yaml.snakeyaml.constructor.Constructor;

 import org.yaml.snakeyaml.introspector.BeanAccess;

 import org.yaml.snakeyaml.reader.UnicodeReader;

 import org.yaml.snakeyaml.representer.Representer;

 import org.yaml.snakeyaml.resolver.Resolver;

 /**

  * Convenience utility to parse JavaBeans. When the YAML document contains a

  * global tag with the class definition like '!!com.package.MyBean' it is

  * ignored in favour of the runtime class <code>T</code>.

  * 

  * @deprecated use Yaml.loadAs() methods instead

  * @see http://www.artima.com/weblogs/viewpost.jsp?thread=208860

  */

 public class JavaBeanLoader<T> {

     private Yaml loader;

     public JavaBeanLoader(TypeDescription typeDescription) {

         this(typeDescription, BeanAccess.DEFAULT);

     }

     public JavaBeanLoader(TypeDescription typeDescription, BeanAccess beanAccess) {

         this(new LoaderOptions(typeDescription), beanAccess);

     }

     public JavaBeanLoader(LoaderOptions options, BeanAccess beanAccess) {

         if (options == null) {

             throw new NullPointerException("LoaderOptions must be provided.");

         }

         if (options.getRootTypeDescription() == null) {

             throw new NullPointerException("TypeDescription must be provided.");

         }

         Constructor constructor = new Constructor(options.getRootTypeDescription());

         loader = new Yaml(constructor, options, new Representer(), new DumperOptions(),

                 new Resolver());

         loader.setBeanAccess(beanAccess);

     }

     public <S extends T> JavaBeanLoader(Class<S> clazz, BeanAccess beanAccess) {

         this(new TypeDescription(clazz), beanAccess);

     }

     public <S extends T> JavaBeanLoader(Class<S> clazz) {

         this(clazz, BeanAccess.DEFAULT);

     }

     /**

      * Parse the first YAML document in a stream and produce the corresponding

      * JavaBean.

      * 

      * @param yaml

      *            YAML document

      * @return parsed JavaBean

      */

     @SuppressWarnings("unchecked")

     public T load(String yaml) {

         return (T) loader.load(new StringReader(yaml));

     }

     /**

      * Parse the first YAML document in a stream and produce the corresponding

      * JavaBean.

      * 

      * @param io

      *            data to load from (BOM is respected and removed)

      * @return parsed JavaBean

      */

     @SuppressWarnings("unchecked")

     public T load(InputStream io) {

         return (T) loader.load(new UnicodeReader(io));

     }

     /**

      * Parse the first YAML document in a stream and produce the corresponding

      * Java object.

      * 

      * @param io

      *            data to load from (BOM must not be present)

      * @return parsed JavaBean

      */

     @SuppressWarnings("unchecked")

     public T load(Reader io) {

         return (T) loader.load(io);

     }

 }