Package org.epics.archiverappliance.utils.nio.tar

Class EAATar

java.lang.Object

org.epics.archiverappliance.utils.nio.tar.EAATar

public class EAATar
extends Object

Layer on top of Apache Commons Compress TarArchiveEntry and TarArchiveInputStream. The Wikipedia article on tar files https://en.wikipedia.org/wiki/Tar_(computing) is quite comprehensive. This class can also be used as a command line utility to do basic operations on tar files.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	LOGICAL_DELETE_PREFIX

Constructor Summary

Constructors

Constructor	Description
EAATar(String tarFileName)

Method Summary

Modifier and Type	Method	Description
void	appendFiles(List<TarEntry> inputs)
void	appendFiles(List<TarEntry> inputs, TarEntry lastEntryInTarFile)
void	extract(TarEntry entry, WritableByteChannel destChannel)
void	extractFile(TarEntry entry, WritableByteChannel destChannel)
TarReadOnlyByteChannel	getReadOnlyByteChannel(TarEntry entry)
String	getTarFileName()
boolean	hasDeletedEntries()
Map<String,TarEntry>	loadCatalog()
static void	main(String[] args)
void	markFileAsDeleted(TarEntry entry)
void	optimize()
void	parseCatalog(Predicate<TarEntry> filter)
void	renameEntry(TarEntry entry, String newEntryName)

Methods inherited from class java.lang.Object

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

Field Details

LOGICAL_DELETE_PREFIX

public static final String LOGICAL_DELETE_PREFIX

See Also:

• Constant Field Values

Constructor Details

EAATar

public EAATar(String tarFileName)
       throws IOException

Throws:

IOException

Method Details

getTarFileName

public String getTarFileName()

parseCatalog

public void parseCatalog(Predicate<TarEntry> filter)
                  throws IOException

Throws:

IOException

loadCatalog

public Map<String,TarEntry> loadCatalog()
                                 throws IOException

Throws:

IOException

hasDeletedEntries

public boolean hasDeletedEntries()
                          throws IOException

Throws:

IOException

getReadOnlyByteChannel

public TarReadOnlyByteChannel getReadOnlyByteChannel(TarEntry entry)
                                              throws IOException

Throws:

IOException

extract

public void extract(TarEntry entry,
 WritableByteChannel destChannel)
             throws IOException

Throws:

IOException

extractFile

public void extractFile(TarEntry entry,
 WritableByteChannel destChannel)
                 throws IOException

Throws:

IOException

appendFiles

public void appendFiles(List<TarEntry> inputs)
                 throws IOException

Throws:

IOException

appendFiles

public void appendFiles(List<TarEntry> inputs,
 TarEntry lastEntryInTarFile)
                 throws IOException

Throws:

IOException

markFileAsDeleted

public void markFileAsDeleted(TarEntry entry)
                       throws IOException

Throws:

IOException

renameEntry

public void renameEntry(TarEntry entry,
 String newEntryName)
                 throws IOException

Throws:

IOException

optimize

public void optimize()
              throws IOException

Throws:

IOException

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception