001/*
002 * (C) Copyright 2006-2008 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     bstefanescu
018 *
019 * $Id$
020 */
021
022package org.nuxeo.ecm.webengine.model.io;
023
024import java.io.IOException;
025import java.io.InputStream;
026import java.io.OutputStream;
027import java.lang.annotation.Annotation;
028import java.lang.reflect.Type;
029import java.net.URL;
030
031import javax.ws.rs.Produces;
032import javax.ws.rs.core.MediaType;
033import javax.ws.rs.core.MultivaluedMap;
034import javax.ws.rs.ext.MessageBodyWriter;
035import javax.ws.rs.ext.Provider;
036
037import org.apache.commons.io.IOUtils;
038
039/**
040 * @author <a href="mailto:[email protected]">Bogdan Stefanescu</a>
041 */
042@Provider
043@Produces("*/*")
044public class URLWriter implements MessageBodyWriter<URL> {
045
046    public void writeTo(URL t, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType,
047            MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream) throws IOException {
048        try (InputStream in = t.openStream()) {
049            IOUtils.copy(in, entityStream);
050            entityStream.flush();
051        }
052    }
053
054    public long getSize(URL arg0, Class<?> arg1, Type arg2, Annotation[] arg3, MediaType arg4) {
055        return -1;
056    }
057
058    public boolean isWriteable(Class<?> arg0, Type type, Annotation[] arg2, MediaType arg3) {
059        return URL.class.isAssignableFrom(arg0);
060    }
061
062}