Package org.apache.jackrabbit.vault.fs.io

Class ZipArchive

java.lang.Object

org.apache.jackrabbit.vault.fs.io.ZipArchive

All Implemented Interfaces:

Closeable, AutoCloseable, Archive

public class ZipArchive
extends Object

Implements an archive that is based on a zip file.

Nested Class Summary

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

Archive.Entry

Field Summary

Fields

Modifier and Type	Field	Description
protected static String	PROPERTY_ENABLE_STACK_TRACES
protected static boolean	SHOULD_CREATE_STACK_TRACE	Determines whether stack traces should be created for each register call of CloseWatcher.

Constructor Summary

Constructors

Constructor	Description
ZipArchive(@NotNull File zipFile)	Creates a new archive that is based on the given zip file.
ZipArchive(@NotNull File zipFile, boolean isTempFile)	Creates a new archive that is based on the given zip file.

Method Summary

Modifier and Type	Method	Description
void	close()	Closes the archive.
Archive.Entry	getEntry(String path)	Returns the entry specified by path.
@Nullable File	getFile()	Returns the underlying file or null if it does not exist.
long	getFileSize()	Returns the size of the underlying file or -1 if it does not exist.
@Nullable VaultInputSource	getInputSource(@Nullable Archive.Entry entry)	Returns an input source for the given entry.
Archive.Entry	getJcrRoot()	Returns the entry that specifies the "jcr_root". if no such entry exists, null is returned.
@NotNull MetaInf	getMetaInf()	Returns the meta inf.
@NotNull Archive.Entry	getRoot()	Returns the root entry.
Archive	getSubArchive(String rootPath, boolean asJcrRoot)	Returns a sub archive that is rooted at the given path.
void	open(boolean strict)	Opens the archive.
@Nullable InputStream	openInputStream(@Nullable Archive.Entry entry)	Opens an input stream for the given entry.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

PROPERTY_ENABLE_STACK_TRACES

protected static final String PROPERTY_ENABLE_STACK_TRACES

See Also:

Constant Field Values

SHOULD_CREATE_STACK_TRACE

protected static final boolean SHOULD_CREATE_STACK_TRACE

Determines whether stack traces should be created for each register call of CloseWatcher. This is false by default. Enable via system or OSGi framework property vault.enableStackTraces.

Constructor Detail

ZipArchive

public ZipArchive(@NotNull
                  @NotNull File zipFile)

Creates a new archive that is based on the given zip file.

Parameters:

zipFile - the zip file

ZipArchive

public ZipArchive(@NotNull
                  @NotNull File zipFile,
                  boolean isTempFile)

Creates a new archive that is based on the given zip file.

Parameters:

zipFile - the zip file

isTempFile - if true if the file is considered temporary and can be deleted after this archive is closed.

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

@Nullable
public @Nullable InputStream openInputStream(@Nullable
                                             @Nullable Archive.Entry entry)
                                      throws IOException

Description copied from interface: Archive

Opens an input stream for the given entry. Requires a previous call to Archive.open(boolean).

Parameters:

entry - the entry

Returns:

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

Throws:

IOException - if an error occurs

getInputSource

@Nullable
public @Nullable VaultInputSource getInputSource(@Nullable
                                                 @Nullable Archive.Entry entry)
                                          throws IOException

Description copied from interface: Archive

Returns an input source for the given entry. Requires a previous call to Archive.open(boolean).

Parameters:

entry - the entry

Returns:

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

Throws:

IOException - if an error occurs

close

public void close()

Description copied from interface: Archive

Closes the archive. Only necessary to call if the archive has been opened.

getRoot

@NotNull
public @NotNull Archive.Entry getRoot()
                               throws IOException

Description copied from interface: Archive

Returns the root entry. Requires a previous call to Archive.open(boolean).

Returns:

the root entry.

Throws:

IOException - if an error occurs

getMetaInf

@NotNull
public @NotNull 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. Requires a previous call to Archive.open(boolean).

Returns:

the meta inf.

getFile

@Nullable
public @Nullable File getFile()

Returns the underlying file or null if it does not exist.

Returns:

the file or null.

getFileSize

public long getFileSize()

Returns the size of the underlying file or -1 if it does not exist.

Returns:

the file size

toString

public String toString()

Overrides:

toString in class Object

getEntry

public Archive.Entry getEntry(String path)
                       throws IOException

Description copied from interface: Archive

Returns the entry specified by path. Requires a previous call to Archive.open(boolean).

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. Requires a previous call to Archive.open(boolean).

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 their own meta inf and are closed automatically if their container archive is closed. Requires a previous call to Archive.open(boolean).

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