| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed 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 com.android.voicemail.impl.mail; |
| |
| import java.util.ArrayList; |
| |
| /** |
| * |
| * |
| * <pre> |
| * A FetchProfile is a list of items that should be downloaded in bulk for a set of messages. |
| * FetchProfile can contain the following objects: |
| * FetchProfile.Item: Described below. |
| * Message: Indicates that the body of the entire message should be fetched. |
| * Synonymous with FetchProfile.Item.BODY. |
| * Part: Indicates that the given Part should be fetched. The provider |
| * is expected have previously created the given BodyPart and stored |
| * any information it needs to download the content. |
| * </pre> |
| */ |
| public class FetchProfile extends ArrayList<Fetchable> { |
| /** |
| * Default items available for pre-fetching. It should be expected that any item fetched by using |
| * these items could potentially include all of the previous items. |
| */ |
| public enum Item implements Fetchable { |
| /** Download the flags of the message. */ |
| FLAGS, |
| |
| /** |
| * Download the envelope of the message. This should include at minimum the size and the |
| * following headers: date, subject, from, content-type, to, cc |
| */ |
| ENVELOPE, |
| |
| /** |
| * Download the structure of the message. This maps directly to IMAP's BODYSTRUCTURE and may map |
| * to other providers. The provider should, if possible, fill in a properly formatted MIME |
| * structure in the message without actually downloading any message data. If the provider is |
| * not capable of this operation it should specifically set the body of the message to null so |
| * that upper levels can detect that a full body download is needed. |
| */ |
| STRUCTURE, |
| |
| /** |
| * A truncated portion of the entire message, cut off at a provider determined limit. This |
| * should generally be around 50kB. |
| */ |
| BODY_TRUNCATED, |
| |
| /** The entire message. */ |
| BODY, |
| } |
| |
| /** |
| * @return the first {@link Part} in this collection, or null if it doesn't contain {@link Part}. |
| */ |
| public Part getFirstPart() { |
| for (Fetchable o : this) { |
| if (o instanceof Part) { |
| return (Part) o; |
| } |
| } |
| return null; |
| } |
| } |