| // Copyright 2016 Google Inc. All rights reserved. |
| // |
| // 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.google.archivepatcher.generator; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| |
| /** |
| * An interface to be implemented by delta generators. |
| */ |
| public interface DeltaGenerator { |
| /** |
| * Generates a delta in deltaOut that can be applied to oldBlob to produce newBlob. |
| * |
| * @param oldBlob the old blob |
| * @param newBlob the new blob |
| * @param deltaOut the stream to write the delta to |
| * @throws IOException in the event of an I/O error reading the input files or writing to the |
| * delta output stream |
| * @throws InterruptedException if any thread has interrupted the current thread |
| */ |
| public void generateDelta(File oldBlob, File newBlob, OutputStream deltaOut) |
| throws IOException, InterruptedException; |
| } |