001/* 002 * Stallion Core: A Modern Web Framework 003 * 004 * Copyright (C) 2015 - 2016 Stallion Software LLC. 005 * 006 * This program is free software: you can redistribute it and/or modify it under the terms of the 007 * GNU General Public License as published by the Free Software Foundation, either version 2 of 008 * the License, or (at your option) any later version. This program is distributed in the hope that 009 * it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of 010 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 011 * License for more details. You should have received a copy of the GNU General Public License 012 * along with this program. If not, see <http://www.gnu.org/licenses/gpl-2.0.html>. 013 * 014 * 015 * 016 */ 017 018package io.stallion.services; 019 020import io.stallion.exceptions.ConfigException; 021import io.stallion.exceptions.UsageException; 022import io.stallion.settings.Settings; 023 024import java.io.File; 025import java.util.Map; 026 027import static io.stallion.utils.Literals.*; 028 029 030public abstract class CloudStorageService { 031 private static CloudStorageService _instance; 032 033 public static CloudStorageService instance() { 034 if (_instance == null) { 035 load(); 036 } 037 return _instance; 038 } 039 040 public static void load() { 041 if (Settings.instance().getCloudStorage() == null) { 042 throw new ConfigException("[cloudStorage] section of stallion.toml is empty. Cannot initialize cloud storage."); 043 } 044 if (empty(Settings.instance().getCloudStorage().getJavaClass())) { 045 _instance = new S3StorageService(); 046 } else { 047 throw new UsageException("Loading cloud controller dynamically not yet implemented."); 048 } 049 050 } 051 052 public static void load(CloudStorageService controller) { 053 _instance = controller; 054 } 055 056 057 public abstract String getSignedUploadUrl(String bucket, String fileKey, String contentType, Map headers); 058 059 public abstract void uploadFile(File file, String bucket, String fileKey, boolean isPublic); 060 public abstract void uploadFile(File file, String bucket, String fileKey, boolean isPublic, String contentType, Map<String, String> headers); 061}