Package org.apache.cassandra.spark.bulkwriter.util

Class IOUtils

java.lang.Object

org.apache.cassandra.spark.bulkwriter.util.IOUtils

public final class IOUtils
extends java.lang.Object

Method Summary

Modifier and Type	Method	Description
static java.lang.String	xxhash32(java.nio.file.Path path)	Calculate the checksum of the file using the default buffer size
static java.lang.String	xxhash32(java.nio.file.Path path, int bufferSize)	Calculate the checksum of the file using the specified buffer size
static long	zip(java.nio.file.Path sourcePath, java.nio.file.Path targetPath)	Zip the files under source path.
static long	zip(java.nio.file.Path sourcePath, java.nio.file.Path targetPath, int maxDepth)	Zip the files under source path.

Methods inherited from class java.lang.Object

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

Method Detail

zip

public static long zip(java.nio.file.Path sourcePath,
                       java.nio.file.Path targetPath)
                throws java.io.IOException

Zip the files under source path. It doest not zip recursively.

Parameters:

sourcePath - directory that contains files to be zipped

targetPath - output zip file path

Returns:

compressed size, i.e. the size of the zip file

Throws:

java.io.IOException - I/O exception during zipping

zip

public static long zip(java.nio.file.Path sourcePath,
                       java.nio.file.Path targetPath,
                       int maxDepth)
                throws java.io.IOException

Zip the files under source path. The files within the maxDepth directory levels are considered.

Parameters:

sourcePath - directory that contains files to be zipped

targetPath - output zip file path

maxDepth - the maximum number of directory levels to visit

Returns:

compressed size, i.e. the size of the zip file

Throws:

java.io.IOException - I/O exception during zipping

xxhash32

public static java.lang.String xxhash32(java.nio.file.Path path,
                                        int bufferSize)
                                 throws java.io.IOException

Calculate the checksum of the file using the specified buffer size

Parameters:

path - file

bufferSize - buffer size for file content to calculate checksum

Returns:

checksum string

Throws:

java.io.IOException - I/O exception during checksum calculation

xxhash32

public static java.lang.String xxhash32(java.nio.file.Path path)
                                 throws java.io.IOException

Calculate the checksum of the file using the default buffer size

Parameters:

path - file

Returns:

checksum string

Throws:

java.io.IOException - I/O exception during checksum calculation