content: /*
   * Copyright (C) 2017 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 com.android.apksig.internal.asn1.ber;
  
  /**
   * Reader of ASN.1 Basic Encoding Rules (BER) data values.
   *
   * <p>BER data value reader returns data values, one by one, from a source. The interpretation of
   * data values (e.g., how to obtain a numeric value from an INTEGER data value, or how to extract
   * the elements of a SEQUENCE value) is left to clients of the reader.
   */
  public interface BerDataValueReader {
  
      /**
       * Returns the next data value or {@code null} if end of input has been reached.
       *
       * @throws BerDataValueFormatException if the value being read is malformed.
       */
      BerDataValue readDataValue() throws BerDataValueFormatException;
  }
  