| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.tika.server.standard.writer; |
| |
| import static java.nio.charset.StandardCharsets.UTF_8; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.io.OutputStreamWriter; |
| import java.io.Writer; |
| import java.lang.annotation.Annotation; |
| import java.lang.reflect.Type; |
| 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.Provider; |
| |
| import org.apache.tika.exception.TikaException; |
| import org.apache.tika.metadata.Metadata; |
| import org.apache.tika.server.core.writer.TikaServerWriter; |
| import org.apache.tika.xmp.XMPMetadata; |
| |
| @Provider |
| @Produces("application/rdf+xml") |
| public class XMPMessageBodyWriter implements TikaServerWriter<Metadata> { |
| |
| private static MediaType RDF_XML = MediaType.valueOf("application/rdf+xml"); |
| |
| public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, |
| MediaType mediaType) { |
| return mediaType.equals(RDF_XML) && Metadata.class.isAssignableFrom(type); |
| } |
| |
| public long getSize(Metadata data, Class<?> type, Type genericType, Annotation[] annotations, |
| MediaType mediaType) { |
| return -1; |
| } |
| |
| @Override |
| public void writeTo(Metadata metadata, Class<?> type, Type genericType, |
| Annotation[] annotations, MediaType mediaType, |
| MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream) |
| throws IOException, WebApplicationException { |
| try { |
| Writer writer = new OutputStreamWriter(entityStream, UTF_8); |
| XMPMetadata xmp = new XMPMetadata(metadata); |
| writer.write(xmp.toString()); |
| writer.flush(); |
| } catch (TikaException e) { |
| throw new IOException(e); |
| } |
| entityStream.flush(); |
| } |
| } |