org.archive.wayback.resourceindex.ziplines

Interface BlockLoader

All Known Implementing Classes:

GenericBlockLoader, HDFSBlockLoader, Http11BlockLoader, LocalFileBlockLoader, RemoteHttp11BlockLoader

public interface BlockLoader

Method Summary

Modifier and Type	Method and Description
byte[]	getBlock(String url, long offset, int length) Fetch a range of bytes from a particular URL.

Method Detail

getBlock

byte[] getBlock(String url,
                long offset,
                int length)
         throws IOException

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.

Parameters:

url - String URL to fetch

offset - byte start offset of the desired range

length - number of octets to fetch

Returns:

a new byte[] containing the octets fetched

Throws:

IOException - on Network and protocol failures, as well as Timeouts