Class HashedFileExtractToString

java.lang.Object

io.nosqlbench.virtdata.library.basics.shared.from_long.to_string.HashedFileExtractToString

All Implemented Interfaces:

LongFunction<String>

public class HashedFileExtractToString
extends Object
implements LongFunction<String>

Pseudo-randomly extract a section of a text file and return it according to some minimum and maximum extract size. The file is loaded into memory as a shared text image. It is then indexed into as a character buffer to find a pseudo-randomly sized fragment.

Constructor Summary

Constructors

Constructor	Description
HashedFileExtractToString(String filename, int minsize, int maxsize)
HashedFileExtractToString(String filename, Object sizefunc)	Provide a size function for the fragment to be extracted.

Method Summary

Modifier and Type	Method	Description
String	apply(long input)
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

HashedFileExtractToString

public HashedFileExtractToString(String filename,
 int minsize,
 int maxsize)

HashedFileExtractToString

public HashedFileExtractToString(String filename,
 Object sizefunc)

Provide a size function for the fragment to be extracted. In this form, if the size function specifies a string size which is larger than the text image, it is truncated via modulo to fall within the text image size.

Parameters:

filename - The file name to be loaded

sizefunc - A function which determines the size of the data to be loaded.

Method Details

apply

public String apply(long input)

Specified by:

apply in interface LongFunction<String>

toString

public String toString()

Overrides:

toString in class Object