1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.camera.session; 18 19 import java.io.File; 20 import java.io.IOException; 21 22 /** 23 * Interface for the session storage manager which handles management of storage 24 * space that can be used for temporary session files. 25 */ 26 public interface SessionStorageManager { 27 28 /** 29 * Returns the directory that can be used for temporary sessions of a 30 * specific type, defined by 'subDirectory'. 31 * <p> 32 * Before returning, this method will make sure the returned directory is 33 * clean of expired session data. 34 * 35 * @param subFolder The subfolder to use/create within the temporary session 36 * space, e.g. "foo". 37 * @return A valid file object that points to an existing directory. 38 * @throws IOException If the directory could not be made available. 39 */ 40 public File getSessionDirectory(String subDirectory) throws IOException; 41 } 42
