/*
    * Copyright 2006-2011 the original author or authors.
    * 
    * 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.springframework.security.oauth2.common.exceptions;
  
  import java.io.IOException;
  import java.util.Map.Entry;
  
  import org.codehaus.jackson.JsonGenerator;
  import org.codehaus.jackson.JsonProcessingException;
  import org.codehaus.jackson.map.JsonSerializer;
  import org.codehaus.jackson.map.SerializerProvider;
  
  /**
   * @author Dave Syer
   *
   */
  public class OAuth2ExceptionJackson1Serializer extends JsonSerializer<OAuth2Exception> {
  
  	@Override
  	public void serialize(OAuth2Exception value, JsonGenerator jgen, SerializerProvider provider) throws IOException,
  			JsonProcessingException {
          jgen.writeStartObject();
  		jgen.writeStringField("error", value.getOAuth2ErrorCode());
  		jgen.writeStringField("error_description", value.getMessage());
  		if (value.getAdditionalInformation()!=null) {
  			for (Entry<String, String> entry : value.getAdditionalInformation().entrySet()) {
  				String key = entry.getKey();
  				String add = entry.getValue();
  				jgen.writeStringField(key, add);				
  			}
  		}
          jgen.writeEndObject();
  	}
  
  }