| /* |
| * Copyright (C) 2024 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.net.apf; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| |
| import java.util.Objects; |
| |
| /** |
| * APFv6 assembler/generator. A tool for generating an APFv6 program. |
| * |
| * @hide |
| */ |
| public final class ApfV6Generator extends ApfV6GeneratorBase<ApfV6Generator> { |
| /** |
| * Returns true if we support the specified {@code version}, otherwise false. |
| */ |
| public static boolean supportsVersion(int version) { |
| return version >= APF_VERSION_6; |
| } |
| |
| /** |
| * Creates an ApfV6Generator instance which emits instructions for APFv6. |
| */ |
| @VisibleForTesting(visibility = VisibleForTesting.Visibility.PACKAGE) |
| public ApfV6Generator() throws IllegalInstructionException { |
| super(); |
| addData(new byte[0]); |
| } |
| |
| /** |
| * Creates an ApfV6Generator instance which emits instructions APFv6. |
| * Initializes the data region with {@code bytes}. |
| */ |
| @VisibleForTesting(visibility = VisibleForTesting.Visibility.PACKAGE) |
| public ApfV6Generator(byte[] bytes) throws IllegalInstructionException { |
| super(); |
| Objects.requireNonNull(bytes); |
| addData(bytes); |
| } |
| } |