package org.jboss.resteasy.plugins.providers.multipart;
import java.io.IOException;
import java.io.InputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.List;
import javax.ws.rs.Consumes;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyReader;
import javax.ws.rs.ext.Provider;
import javax.ws.rs.ext.Providers;
import org.jboss.resteasy.util.Types;
/**
* @author <a href="mailto:bill@burkecentral.com">Bill Burke</a>
* @version $Revision: 1 $
*/
@Provider
@Consumes("multipart/*")
public class ListMultipartReader implements MessageBodyReader<List<?>> {
protected @Context
Providers workers;
public boolean isReadable(Class<?> type, Type genericType,
Annotation[] annotations, MediaType mediaType) {
return type.equals(List.class) && genericType != null
&& genericType instanceof ParameterizedType;
}
public List<?> readFrom(Class<List<?>> type, Type genericType,
Annotation[] annotations, MediaType mediaType,
MultivaluedMap<String, String> httpHeaders, InputStream entityStream)
throws IOException, WebApplicationException {
String boundary = mediaType.getParameters().get("boundary");
if (boundary == null)
throw new IOException("Unable to get boundary for multipart");
if (!(genericType instanceof ParameterizedType))
throw new IllegalArgumentException("Reader = " + this
+ " recived genericType = " + genericType
+ ", but it is not instance of " + ParameterizedType.class);
ParameterizedType param = (ParameterizedType) genericType;
Type baseType = param.getActualTypeArguments()[0];
Class<?> rawType = Types.getRawType(baseType);
MultipartInputImpl input = new MultipartInputImpl(mediaType, workers);
input.parse(entityStream);
List<Object> list = new ArrayList<Object>();
for (InputPart part : input.getParts())
list.add(part.getBody(rawType, baseType));
return list;
}
}