content: /*
   * Copyright (C) 2010 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 android.drm;
  
  /**
   * An entity class that wraps converted data, conversion status, and the
   * offset for appending the header and body signature to the converted data.
   * An instance of this class may be created two ways by the drm framework:
   * a) a call to {@link DrmManagerClient#convertData DrmManagerClient.convertData()} and
   * b) a call to {@link DrmManagerClient#closeConvertSession DrmManagerClient.closeConvertSession()}.
   * An valid offset value is provided only from a success call to
   * {@link DrmManagerClient#closeConvertSession DrmManagerClient.closeConvertSession()}.
   *
   */
  public class DrmConvertedStatus {
      // The following status code constants must be in sync with
      // DrmConvertedStatus.cpp. Please also update isValidStatusCode()
      // when more status code constants are added.
      /**
       * Indicate the conversion status is successful.
       */
      public static final int STATUS_OK = 1;
      /**
       * Indicate a failed conversion status due to input data.
       */
      public static final int STATUS_INPUTDATA_ERROR = 2;
      /**
       * Indicate a general failed conversion status.
       */
      public static final int STATUS_ERROR = 3;
  
      /**
       * Status code for the conversion. Must be one of the defined status
       * constants above.
       */
      public final int statusCode;
      /**
       * Converted data. It is optional and thus can be null.
       */
      public final byte[] convertedData;
      /**
       * Offset value for the body and header signature.
       */
      public final int offset;
  
      /**
       * Creates a <code>DrmConvertedStatus</code> object with the specified parameters.
       *
       * @param statusCode Conversion status. Must be one of the status code constants
       * defined above.
       * @param convertedData Converted data. It can be null.
       * @param offset Offset value for appending the header and body signature.
       */
      public DrmConvertedStatus(int statusCode, byte[] convertedData, int offset) {
          if (!isValidStatusCode(statusCode)) {
              throw new IllegalArgumentException("Unsupported status code: " + statusCode);
          }
  
          this.statusCode = statusCode;
          this.convertedData = convertedData;
          this.offset = offset;
      }
  
      private boolean isValidStatusCode(int statusCode) {
          return statusCode == STATUS_OK ||
                 statusCode == STATUS_INPUTDATA_ERROR ||
                 statusCode == STATUS_ERROR;
      }
  }
  
  