Eino-Ville Talvala | b267554 | 2012-12-12 13:29:45 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 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 android.hardware.photography; |
| 18 | |
Igor Murashkin | e363fbb | 2013-06-25 20:26:06 +0000 | [diff] [blame] | 19 | import android.util.AndroidException; |
| 20 | |
Eino-Ville Talvala | b267554 | 2012-12-12 13:29:45 -0800 | [diff] [blame] | 21 | /** |
| 22 | * <p><code>CameraAccessException</code> is thrown if a camera device could not |
| 23 | * be queried or opened by the {@link CameraManager}, or if the connection to an |
| 24 | * opened {@link CameraDevice} is no longer valid.</p> |
| 25 | * |
| 26 | * @see CameraManager |
| 27 | * @see CameraDevice |
| 28 | */ |
Igor Murashkin | e363fbb | 2013-06-25 20:26:06 +0000 | [diff] [blame] | 29 | public class CameraAccessException extends AndroidException { |
Eino-Ville Talvala | b267554 | 2012-12-12 13:29:45 -0800 | [diff] [blame] | 30 | /** |
| 31 | * The camera device is in use already |
| 32 | */ |
| 33 | public static final int CAMERA_IN_USE = 1; |
| 34 | |
| 35 | /** |
| 36 | * The system-wide limit for number of open cameras has been reached, |
| 37 | * and more camera devices cannot be opened until previous instances are |
| 38 | * closed. |
| 39 | */ |
| 40 | public static final int MAX_CAMERAS_IN_USE = 2; |
| 41 | |
| 42 | /** |
| 43 | * The camera is disabled due to a device policy, and cannot be opened. |
| 44 | * |
| 45 | * @see android.app.admin.DevicePolicyManager#setCameraDisabled(android.content.ComponentName, boolean) |
| 46 | */ |
| 47 | public static final int CAMERA_DISABLED = 3; |
| 48 | |
| 49 | /** |
| 50 | * The camera device is removable and has been disconnected from the Android |
| 51 | * device, or the camera service has shut down the connection due to a |
| 52 | * higher-priority access request for the camera device. |
| 53 | */ |
| 54 | public static final int CAMERA_DISCONNECTED = 4; |
| 55 | |
Igor Murashkin | e363fbb | 2013-06-25 20:26:06 +0000 | [diff] [blame] | 56 | // Make the eclipse warning about serializable exceptions go away |
| 57 | private static final long serialVersionUID = 5630338637471475675L; // randomly generated |
| 58 | |
| 59 | private final int mReason; |
Eino-Ville Talvala | b267554 | 2012-12-12 13:29:45 -0800 | [diff] [blame] | 60 | |
| 61 | /** |
| 62 | * The reason for the failure to access the camera. |
| 63 | * |
| 64 | * @see #CAMERA_IN_USE |
| 65 | * @see #MAX_CAMERAS_IN_USE |
| 66 | * @see #CAMERA_DISABLED |
| 67 | * @see #CAMERA_DISCONNECTED |
| 68 | */ |
| 69 | public final int getReason() { |
| 70 | return mReason; |
| 71 | } |
| 72 | |
| 73 | public CameraAccessException(int problem) { |
Igor Murashkin | e363fbb | 2013-06-25 20:26:06 +0000 | [diff] [blame] | 74 | super(getDefaultMessage(problem)); |
Eino-Ville Talvala | b267554 | 2012-12-12 13:29:45 -0800 | [diff] [blame] | 75 | mReason = problem; |
| 76 | } |
| 77 | |
| 78 | public CameraAccessException(int problem, String message) { |
| 79 | super(message); |
| 80 | mReason = problem; |
| 81 | } |
| 82 | |
| 83 | public CameraAccessException(int problem, String message, Throwable cause) { |
| 84 | super(message, cause); |
| 85 | mReason = problem; |
| 86 | } |
| 87 | |
| 88 | public CameraAccessException(int problem, Throwable cause) { |
Igor Murashkin | e363fbb | 2013-06-25 20:26:06 +0000 | [diff] [blame] | 89 | super(getDefaultMessage(problem), cause); |
Eino-Ville Talvala | b267554 | 2012-12-12 13:29:45 -0800 | [diff] [blame] | 90 | mReason = problem; |
| 91 | } |
Igor Murashkin | e363fbb | 2013-06-25 20:26:06 +0000 | [diff] [blame] | 92 | |
| 93 | private static String getDefaultMessage(int problem) { |
| 94 | switch (problem) { |
| 95 | case CAMERA_IN_USE: |
| 96 | return "The camera device is in use already"; |
| 97 | case MAX_CAMERAS_IN_USE: |
| 98 | return "The system-wide limit for number of open cameras has been reached, " + |
| 99 | "and more camera devices cannot be opened until previous instances " + |
| 100 | "are closed."; |
| 101 | case CAMERA_DISABLED: |
| 102 | return "The camera is disabled due to a device policy, and cannot be opened."; |
| 103 | case CAMERA_DISCONNECTED: |
| 104 | return "The camera device is removable and has been disconnected from the Android" + |
| 105 | " device, or the camera service has shut down the connection due to a " + |
| 106 | "higher-priority access request for the camera device."; |
| 107 | } |
| 108 | return null; |
| 109 | } |
Eino-Ville Talvala | b267554 | 2012-12-12 13:29:45 -0800 | [diff] [blame] | 110 | } |