001/* 002 * Licensed to DuraSpace under one or more contributor license agreements. 003 * See the NOTICE file distributed with this work for additional information 004 * regarding copyright ownership. 005 * 006 * DuraSpace licenses this file to you under the Apache License, 007 * Version 2.0 (the "License"); you may not use this file except in 008 * compliance with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018package org.fcrepo.http.commons.domain; 019 020import static javax.ws.rs.core.Variant.mediaTypes; 021import static org.apache.jena.riot.WebContent.contentTypeJSONLD; 022import static org.apache.jena.riot.WebContent.contentTypeN3; 023import static org.apache.jena.riot.WebContent.contentTypeN3Alt2; 024import static org.apache.jena.riot.WebContent.contentTypeNTriples; 025import static org.apache.jena.riot.WebContent.contentTypeRDFXML; 026import static org.apache.jena.riot.WebContent.contentTypeTurtle; 027import static org.apache.jena.riot.WebContent.contentTypeTurtleAlt2; 028 029import java.util.List; 030 031import javax.ws.rs.core.MediaType; 032import javax.ws.rs.core.Variant; 033 034/** 035 * This is a convenience class carrying the various RDF content-type values as 036 * Strings and MediaTypes, after the fashion of the constants available on 037 * javax.ws.rs.core.MediaType 038 * 039 * @author ba2213 040 */ 041public abstract class RDFMediaType extends MediaType { 042 043 private static final String CHARSET_UTF8 = ";charset=utf-8"; 044 045 public static final String N3 = contentTypeN3; 046 047 public static final MediaType N3_TYPE = typeFromString(N3); 048 049 public static final String N3_WITH_CHARSET = N3 + CHARSET_UTF8; 050 051 public static final String N3_ALT2 = contentTypeN3Alt2; 052 053 public static final MediaType N3_ALT2_TYPE = typeFromString(N3_ALT2); 054 055 public static final String N3_ALT2_WITH_CHARSET = N3_ALT2 + CHARSET_UTF8; 056 057 public static final String TURTLE = contentTypeTurtle; 058 059 public static final MediaType TURTLE_TYPE = typeFromString(TURTLE); 060 061 public static final String TURTLE_WITH_CHARSET = TURTLE + CHARSET_UTF8; 062 063 public static final String TURTLE_X = contentTypeTurtleAlt2; 064 065 public static final MediaType TURTLE_X_TYPE = typeFromString(TURTLE_X); 066 067 public static final String RDF_XML = contentTypeRDFXML; 068 069 public static final MediaType RDF_XML_TYPE = typeFromString(RDF_XML); 070 071 public static final String NTRIPLES = contentTypeNTriples; 072 073 public static final MediaType NTRIPLES_TYPE = typeFromString(NTRIPLES); 074 075 public final static String JSON_LD = contentTypeJSONLD; 076 077 public final static MediaType JSON_LD_TYPE = typeFromString(JSON_LD); 078 079 public final static String TEXT_PLAIN_WITH_CHARSET = TEXT_PLAIN + CHARSET_UTF8; 080 081 public final static String TEXT_HTML_WITH_CHARSET = TEXT_HTML + CHARSET_UTF8; 082 083 public static final String APPLICATION_LINK_FORMAT = "application/link-format"; 084 085 public static final List<Variant> POSSIBLE_RDF_VARIANTS = mediaTypes( 086 RDF_XML_TYPE, TURTLE_TYPE, N3_TYPE, N3_ALT2_TYPE, NTRIPLES_TYPE, 087 TEXT_PLAIN_TYPE, TURTLE_X_TYPE, JSON_LD_TYPE).add().build(); 088 089 public static final String POSSIBLE_RDF_RESPONSE_VARIANTS_STRING[] = { 090 TURTLE_WITH_CHARSET, N3_WITH_CHARSET, N3_ALT2_WITH_CHARSET, RDF_XML, NTRIPLES, 091 TEXT_PLAIN_WITH_CHARSET, TURTLE_X, JSON_LD }; 092 093 private static MediaType typeFromString(final String type) { 094 return new MediaType(type.split("/")[0], type.split("/")[1]); 095 } 096 097}