DefaultTextPlain.java

/**
 *    Copyright 2014 Opower, Inc.
 *    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 com.opower.rest.client.generator.plugins.providers;

import com.opower.rest.client.generator.util.TypeConverter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import javax.ws.rs.Consumes;
import javax.ws.rs.Produces;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyReader;
import javax.ws.rs.ext.MessageBodyWriter;
import javax.ws.rs.ext.Provider;

/**
 * @author <a href="mailto:bill@burkecentral.com">Bill Burke</a>
 * @version $Revision: 1 $
 */
@SuppressWarnings("unchecked")
@Provider
@Produces("text/plain")
@Consumes("text/plain")
public class DefaultTextPlain implements MessageBodyReader, MessageBodyWriter
{
   public boolean isReadable(Class type, Type genericType, Annotation[] annotations, MediaType mediaType)
   {
      // StringTextStar should pick up strings
      return !String.class.equals(type) && TypeConverter.isConvertable(type);
   }

   public Object readFrom(Class type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap httpHeaders, InputStream entityStream) throws IOException,

   WebApplicationException
   {
      String value = ProviderHelper.readString(entityStream, mediaType);
      return TypeConverter.getType(type, value);
   }

   public boolean isWriteable(Class type, Type genericType, Annotation[] annotations, MediaType mediaType)
   {
      // StringTextStar should pick up strings
      return !String.class.equals(type) && !type.isArray();
   }

   public long getSize(Object o, Class type, Type genericType, Annotation[] annotations, MediaType mediaType)
   {
      return o.toString().getBytes().length;
   }

   public void writeTo(Object o, Class type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap httpHeaders, OutputStream entityStream) throws IOException,
   WebApplicationException
   {
      String charset = mediaType.getParameters().get("charset");
      if (charset == null) entityStream.write(o.toString().getBytes());
      else entityStream.write(o.toString().getBytes(charset));
   }
}