| /** |
| * 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.camel.component.mail; |
| |
| /** |
| * Resolver to determine Content-Type for file attachments. |
| * <p/> |
| * Strategy introduced to work around mail providers having problems with this such as geronimo mail jars. |
| * <p/> |
| * Note using SUN mail jar have no problem with resolving Content-Type based on file attachments. This resolver |
| * is thus only needed to work around mail providers having bugs or when you a new mime type is unknown by the |
| * mail provider allowing you to determine it. |
| * |
| * @version |
| */ |
| public interface ContentTypeResolver { |
| |
| /** |
| * Resolves the mime content-type based on the attachment file name. |
| * <p/> |
| * Return <tt>null</tt> if you cannot resolve a content type or want to rely on the mail provider |
| * to resolve it for you. |
| * <p/> |
| * The returned value should only be the mime part of the ContentType header, for example: |
| * <tt>image/jpeg</tt> should be returned. Camel will add the remaining <tt>; name=FILENAME</tt>. |
| * |
| * @param fileName the attachment file name |
| * @return the Content-Type or <tt>null</tt> to rely on the mail provider |
| */ |
| String resolveContentType(String fileName); |
| } |