1 /** 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 package org.apache.tika.mime; 18 19 import java.util.HashMap; 20 import java.util.Map; 21 22 /** 23 * Registry of Internet media types. 24 */ 25 public final class MediaTypeRegistry { 26 27 private final Map<MediaType, MediaType> aliases = 28 new HashMap<MediaType, MediaType>(); 29 30 public void addAlias(MediaType canonical, MediaType alias) { 31 aliases.put(alias, canonical); 32 } 33 34 public MediaType unalias(MediaType type) { 35 MediaType canonical = aliases.get(type.getBaseType()); 36 if (canonical != null) { 37 return new MediaType(canonical, type.getParameters()); 38 } else { 39 return type; 40 } 41 } 42 43 }