org.duracloud.chunk

Class FileChunker

java.lang.Object

org.duracloud.chunk.FileChunker

public class FileChunker
extends Object

This class provides the ability to loop over a directory of content which may include files over 5-GB in size, chunk, and push them to a DataStore encapsulated by the member: ContentWriter. A ContentWriter may push to any DataStore, such as: - a filesystem or - a DuraCloud space

Author:

Andrew Woods Date: Feb 4, 2010

Constructor Summary

Constructors

Constructor and Description
FileChunker(ContentWriter contentWriter)
FileChunker(ContentWriter contentWriter, FileChunkerOptions options)

Method Summary

Methods

Modifier and Type	Method and Description
void	addContent(String destSpaceId, String destContentId, String fileChecksum, File file) This method pushes the content file to the space destSpaceId with the content ID destContentId
void	addContent(String destSpaceId, String destContentId, String fileChecksum, long fileSize, InputStream stream) This method pushes the content file to the space destSpaceId with the content ID destContentId
protected void	addContentFrom(File baseDir, String destSpaceId) This method loops the arg baseDir and pushes the found content to the arg destSpace.
static DigestInputStream	createTestContent(File outFile, long size) This method generates a test file with random char content.
protected void	writeReport(File outputFile)

Methods inherited from class java.lang.Object

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

Constructor Detail

FileChunker

public FileChunker(ContentWriter contentWriter)

FileChunker

public FileChunker(ContentWriter contentWriter,
           FileChunkerOptions options)

Method Detail

writeReport

protected void writeReport(File outputFile)

addContent

public void addContent(String destSpaceId,
              String destContentId,
              String fileChecksum,
              File file)

This method pushes the content file to the space destSpaceId with the content ID destContentId

Parameters:

destSpaceId - of content destination

destContentId - of content

fileChecksum - MD5 checksum of file or null if not known

file - to add

addContent

public void addContent(String destSpaceId,
              String destContentId,
              String fileChecksum,
              long fileSize,
              InputStream stream)

This method pushes the content file to the space destSpaceId with the content ID destContentId

Parameters:

destSpaceId - of content destination

destContentId - of content

fileChecksum - MD5 checksum of file or null if not known

stream - to add

addContentFrom

protected void addContentFrom(File baseDir,
                  String destSpaceId)

This method loops the arg baseDir and pushes the found content to the arg destSpace.

Parameters:

baseDir - of content to push to DataStore

destSpaceId - of content destination

createTestContent

public static DigestInputStream createTestContent(File outFile,
                                  long size)
                                           throws IOException

This method generates a test file with random char content.

Parameters:

outFile - of test file

size - number of bytes in test file

Returns:

DigestInputStream of test file

Throws:

IOException - on error