Package nl.knaw.dans.bagit.writer

Class BagWriter

java.lang.Object

nl.knaw.dans.bagit.writer.BagWriter

public final class BagWriter
extends Object

responsible for writing out a Bag

Field Summary

Fields

Modifier and Type	Field	Description
private static final org.slf4j.Logger	logger
private static final ResourceBundle	messages

Constructor Summary

Constructors

Modifier	Constructor	Description
private	BagWriter()

Method Summary

Modifier and Type	Method	Description
private static Set<Manifest>	updateTagManifests(Bag bag, Path newBagRootDir)
static void	write(Bag bag, Path outputDir)	Write the bag out to the specified directory.
private static void	writeTagManifestFiles(Set<Manifest> manifests, Path outputDir, Path bagRootDir)

Methods inherited from class java.lang.Object

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

Field Details

logger

private static final org.slf4j.Logger logger

messages

private static final ResourceBundle messages

Constructor Details

BagWriter

private BagWriter()

Method Details

write

public static void write(Bag bag,
 Path outputDir)
                  throws IOException,
NoSuchAlgorithmException

Write the bag out to the specified directory. If an error occurs some of the files may have been written out to the filesystem. tag manifest(s) are updated prior to writing to ensure bag is valid after completion, it is therefore recommended if you are going to further interact with the bag to read it from specified outputDir path

Parameters:

bag - the Bag object to write out

outputDir - the output directory that will become the root of the bag

Throws:

IOException - if there is a problem writing a file

NoSuchAlgorithmException - when trying to generate a MessageDigest which is used during update.

updateTagManifests

private static Set<Manifest> updateTagManifests(Bag bag,
 Path newBagRootDir)
                                         throws NoSuchAlgorithmException,
IOException

Throws:

NoSuchAlgorithmException

IOException

writeTagManifestFiles

private static void writeTagManifestFiles(Set<Manifest> manifests,
 Path outputDir,
 Path bagRootDir)
                                   throws IOException

Throws:

IOException