org.apache.jackrabbit.vault.fs.io

Class ZipStreamArchive

java.lang.Object

org.apache.jackrabbit.vault.fs.io.ZipStreamArchive

All Implemented Interfaces:

Closeable, AutoCloseable, Archive

public class ZipStreamArchive
extends Object

Implements an archive based on a zip stream, but deflates the entries first into a buffer and later into a temporary file, if the content length exceeds the buffer size.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.jackrabbit.vault.fs.io.Archive

Archive.Entry

Constructor Summary

Constructors

Constructor and Description
ZipStreamArchive(InputStream in) Creates a new zip stream archive on the given input stream.
ZipStreamArchive(InputStream in, int maxBufferSize) Creates an ew zip stream archive on the given input stream.

Method Summary

Modifier and Type	Method and Description
void	close() closes the archive
Archive.Entry	getEntry(String path) Returns the entry specified by path.
VaultInputSource	getInputSource(Archive.Entry entry) Returns an input source for the given entry
Archive.Entry	getJcrRoot() Returns the entry that specifies the "jcr_root".
MetaInf	getMetaInf() Returns the meta inf.
Archive.Entry	getRoot() Returns the root entry.
Archive	getSubArchive(String rootPath, boolean asJcrRoot) Returns a sub archive that is rooted at the given path.
boolean	isBuffered() Checks if this archive is currently buffered (and not using a temporary file).
void	open(boolean strict) Opens the archive.
InputStream	openInputStream(Archive.Entry entry) Opens an input stream for the given entry

Methods inherited from class java.lang.Object

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

Constructor Detail

ZipStreamArchive

public ZipStreamArchive(@Nonnull
                        InputStream in)

Creates a new zip stream archive on the given input stream.

Parameters:

in - the input stream to read from.

ZipStreamArchive

public ZipStreamArchive(@Nonnull
                        InputStream in,
                        int maxBufferSize)

Creates an ew zip stream archive on the given input stream.

Parameters:

in - the input stream to read from.

maxBufferSize - size of buffer to keep content in memory.

Method Detail

open

public void open(boolean strict)
          throws IOException

Description copied from interface: Archive

Opens the archive.

Parameters:

strict - if true open will fail if there was an internal error while parsing meta data.

Throws:

IOException - if an error occurs

openInputStream

public InputStream openInputStream(Archive.Entry entry)
                            throws IOException

Description copied from interface: Archive

Opens an input stream for the given entry

Parameters:

entry - the entry

Returns:

the input stream or null if the entry can't be read

Throws:

IOException - if an error occurs

getInputSource

public VaultInputSource getInputSource(Archive.Entry entry)
                                throws IOException

Description copied from interface: Archive

Returns an input source for the given entry

Parameters:

entry - the entry

Returns:

the input source or null if the entry can't be read

Throws:

IOException - if an error occurs

getMetaInf

public MetaInf getMetaInf()

Description copied from interface: Archive

Returns the meta inf. If the archive provides no specific meta data, a default, empty meta inf is returned.

Returns:

the meta inf.

close

public void close()

Description copied from interface: Archive

closes the archive

getRoot

public Archive.Entry getRoot()
                      throws IOException

Description copied from interface: Archive

Returns the root entry.

Returns:

the root entry.

Throws:

IOException - if an error occurs

isBuffered

public boolean isBuffered()

Checks if this archive is currently buffered (and not using a temporary file).

Returns:

true if buffered.

getEntry

public Archive.Entry getEntry(String path)
                       throws IOException

Description copied from interface: Archive

Returns the entry specified by path.

Specified by:

getEntry in interface Archive

Parameters:

path - the path

Returns:

the entry or null if not found.

Throws:

IOException - if an error occurs

getJcrRoot

public Archive.Entry getJcrRoot()
                         throws IOException

Description copied from interface: Archive

Returns the entry that specifies the "jcr_root". if no such entry exists, null is returned.

Specified by:

getJcrRoot in interface Archive

Returns:

the jcr_root entry or null

Throws:

IOException - if an error occurs

getSubArchive

public Archive getSubArchive(String rootPath,
                             boolean asJcrRoot)
                      throws IOException

Description copied from interface: Archive

Returns a sub archive that is rooted at the given path. Note that sub archives currently can't have they own meta inf and are closed automatically if they base is closed.

Specified by:

getSubArchive in interface Archive

Parameters:

rootPath - root path

asJcrRoot - if true the given root is the jcr_root

Returns:

the archive or null if entry specified by root does not exist.

Throws:

IOException - if an error occurs