| /* |
| * 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; |
| } |