/*
* This file is part of the Wayback archival access software
* (http://archive-access.sourceforge.net/projects/wayback/).
*
* Licensed to the Internet Archive (IA) by one or more individual
* contributors.
*
* The IA licenses this file to You 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 org.archive.wayback.resourceindex.ziplines;
import java.io.IOException;
public interface BlockLoader {
/**
* Fetch a range of bytes from a particular URL. Note that the bytes are
* read into memory all at once, so care should be taken with the length
* argument.
*
* @param url String URL to fetch
* @param offset byte start offset of the desired range
* @param length number of octets to fetch
* @return a new byte[] containing the octets fetched
* @throws IOException on Network and protocol failures, as well as Timeouts
*/
public byte[] getBlock(String url, long offset, int length)
throws IOException;
}