/*
* Copyright (C) 2016 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.util;
import java.io.IOException;
import java.nio.ByteBuffer;
/**
* Consumer of input data which may be provided in one go or in chunks.
*/
public interface DataSink {
/**
* Consumes the provided chunk of data.
*
* <p>This data sink guarantees to not hold references to the provided buffer after this method
* terminates.
*
* @throws IndexOutOfBoundsException if {@code offset} or {@code length} are negative, or if
* {@code offset + length} is greater than {@code buf.length}.
*/
void consume(byte[] buf, int offset, int length) throws IOException;
/**
* Consumes all remaining data in the provided buffer and advances the buffer's position
* to the buffer's limit.
*
* <p>This data sink guarantees to not hold references to the provided buffer after this method
* terminates.
*/
void consume(ByteBuffer buf) throws IOException;
}