1 /* 2 * Copyright (C) 2010 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.drm; 18 19 /** 20 * An entity class that wraps converted data, conversion status, and the 21 * offset for appending the header and body signature to the converted data. 22 * An instance of this class may be created two ways by the drm framework: 23 * a) a call to {@link DrmManagerClient#convertData DrmManagerClient.convertData()} and 24 * b) a call to {@link DrmManagerClient#closeConvertSession DrmManagerClient.closeConvertSession()}. 25 * An valid offset value is provided only from a success call to 26 * {@link DrmManagerClient#closeConvertSession DrmManagerClient.closeConvertSession()}. 27 * 28 */ 29 public class DrmConvertedStatus { 30 // The following status code constants must be in sync with 31 // DrmConvertedStatus.cpp. Please also update isValidStatusCode() 32 // when more status code constants are added. 33 /** 34 * Indicate the conversion status is successful. 35 */ 36 public static final int STATUS_OK = 1; 37 /** 38 * Indicate a failed conversion status due to input data. 39 */ 40 public static final int STATUS_INPUTDATA_ERROR = 2; 41 /** 42 * Indicate a general failed conversion status. 43 */ 44 public static final int STATUS_ERROR = 3; 45 46 /** 47 * Status code for the conversion. Must be one of the defined status 48 * constants above. 49 */ 50 public final int statusCode; 51 /** 52 * Converted data. It is optional and thus can be null. 53 */ 54 public final byte[] convertedData; 55 /** 56 * Offset value for the body and header signature. 57 */ 58 public final int offset; 59 60 /** 61 * Creates a <code>DrmConvertedStatus</code> object with the specified parameters. 62 * 63 * @param statusCode Conversion status. Must be one of the status code constants 64 * defined above. 65 * @param convertedData Converted data. It can be null. 66 * @param offset Offset value for appending the header and body signature. 67 */ DrmConvertedStatus(int statusCode, byte[] convertedData, int offset)68 public DrmConvertedStatus(int statusCode, byte[] convertedData, int offset) { 69 if (!isValidStatusCode(statusCode)) { 70 throw new IllegalArgumentException("Unsupported status code: " + statusCode); 71 } 72 73 this.statusCode = statusCode; 74 this.convertedData = convertedData; 75 this.offset = offset; 76 } 77 isValidStatusCode(int statusCode)78 private boolean isValidStatusCode(int statusCode) { 79 return statusCode == STATUS_OK || 80 statusCode == STATUS_INPUTDATA_ERROR || 81 statusCode == STATUS_ERROR; 82 } 83 } 84 85