content: /*
   * Copyright (c) 2013 3 Round Stones Inc., Some Rights Reserved
   *
   * 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.callimachusproject.rewrite;
  
  import java.lang.reflect.Method;
  
  import org.apache.http.HttpVersion;
  import org.apache.http.StatusLine;
  import org.apache.http.message.BasicStatusLine;
  import org.callimachusproject.annotations.deleted;
  import org.callimachusproject.annotations.disabled;
  import org.openrdf.repository.object.advice.Advice;
  import org.openrdf.repository.object.advice.AdviceFactory;
  import org.openrdf.repository.object.advice.AdviceProvider;
  
  public class MissingAdviceFactory implements AdviceProvider, AdviceFactory {
  
  	@Override
  	public AdviceFactory getAdviserFactory(Class<?> annotationType) {
  		if (disabled.class.equals(annotationType))
  			return this;
  		if (deleted.class.equals(annotationType))
  			return this;
  		return null;
  	}
  
  	@Override
  	public Advice createAdvice(Method method) {
  		StatusLine status = getStatusLine(method);
  		return new MissingAdvice(status, method);
  	}
  
  	private StatusLine getStatusLine(Method method) {
  		if (method.isAnnotationPresent(disabled.class)) {
  			String[] phrase = method.getAnnotation(disabled.class).value();
  			if (phrase.length < 1) {
  				phrase = new String[] { "Disabled" };
  			}
  			return new BasicStatusLine(HttpVersion.HTTP_1_1, 404, phrase[0]);
  		}
  		if (method.isAnnotationPresent(deleted.class)) {
  			String[] phrase = method.getAnnotation(deleted.class).value();
  			if (phrase.length < 1) {
  				phrase = new String[] { "Deleted" };
  			}
  			return new BasicStatusLine(HttpVersion.HTTP_1_1, 410, phrase[0]);
  		}
  		throw new AssertionError();
  	}
  
  }
  