Class VirtualJarInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

java.util.zip.InflaterInputStream

java.util.zip.ZipInputStream

java.util.jar.JarInputStream

org.jboss.vfs.VirtualJarInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class VirtualJarInputStream
extends JarInputStream

Virtual JarInputStream used for representing any VFS directory as a JarInputStream.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	VirtualJarInputStream.VirtualJarEntry	Virtual JarEntry used for representing a child VirtualFile as a JarEntry.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	CENATT
static final int	CENATX
static final int	CENCOM
static final int	CENCRC
static final int	CENDSK
static final int	CENEXT
static final int	CENFLG
static final int	CENHDR
static final int	CENHOW
static final int	CENLEN
static final int	CENNAM
static final int	CENOFF
static final long	CENSIG
static final int	CENSIZ
static final int	CENTIM
static final int	CENVEM
static final int	CENVER
private boolean	closed
private InputStream	currentEntryStream
private VirtualFile	currentVirtualFile
static final int	ENDCOM
static final int	ENDHDR
static final int	ENDOFF
static final long	ENDSIG
static final int	ENDSIZ
static final int	ENDSUB
static final int	ENDTOT
private final Deque<Iterator<VirtualFile>>	entryItr
static final int	EXTCRC
static final int	EXTHDR
static final int	EXTLEN
static final long	EXTSIG
static final int	EXTSIZ
static final int	LOCCRC
static final int	LOCEXT
static final int	LOCFLG
static final int	LOCHDR
static final int	LOCHOW
static final int	LOCLEN
static final int	LOCNAM
static final long	LOCSIG
static final int	LOCSIZ
static final int	LOCTIM
static final int	LOCVER
private final Manifest	manifest
private static final VirtualFileFilter	MANIFEST_FILTER
private static final String	MANIFEST_NAME
private static final String	META_INF_DIR
private final VirtualFile	root

Fields inherited from class InflaterInputStream

buf, inf, len

Fields inherited from class FilterInputStream

in

Constructor Summary

Constructors

Constructor	Description
VirtualJarInputStream(VirtualFile root)	Construct a VirtualJarInputStream from a VirtualFile root

Method Summary

Modifier and Type	Method	Description
int	available()	*
private int	checkForEoSAndReturn(int result)	Check to see if the result is the EOF and if so exchange the current entry stream with the empty stream.
void	close()	*
void	closeEntry()	*
private void	ensureOpen()	*
private String	fixDirectoryName(String name)	Make sure directory names end with a trailing slash
private String	getEntryName(VirtualFile entry)	Get the entry name from a VirtualFile.
Manifest	getManifest()	*
ZipEntry	getNextEntry()	*
JarEntry	getNextJarEntry()	*
private void	openCurrent(VirtualFile current)	Open the current virtual file as the current JarEntry stream.
int	read()	*
int	read(byte[] b)	*
int	read(byte[] b, int off, int len)	*
long	skip(long n)	*

Methods inherited from class JarInputStream

createZipEntry

Methods inherited from class ZipInputStream

readAllBytes, readNBytes, readNBytes, skipNBytes, transferTo

Methods inherited from class InflaterInputStream

fill, mark, markSupported, reset

Methods inherited from class InputStream

nullInputStream

Methods inherited from class Object

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

Field Details

MANIFEST_NAME

private static final String MANIFEST_NAME

See Also:

• Constant Field Values

META_INF_DIR

private static final String META_INF_DIR

See Also:

• Constant Field Values

MANIFEST_FILTER

private static final VirtualFileFilter MANIFEST_FILTER

entryItr

private final Deque<Iterator<VirtualFile>> entryItr

root

private final VirtualFile root

manifest

private final Manifest manifest

currentVirtualFile

private VirtualFile currentVirtualFile

currentEntryStream

private InputStream currentEntryStream

closed

private boolean closed

LOCSIG

static final long LOCSIG

See Also:

• Constant Field Values

EXTSIG

static final long EXTSIG

See Also:

• Constant Field Values

CENSIG

static final long CENSIG

See Also:

• Constant Field Values

ENDSIG

static final long ENDSIG

See Also:

• Constant Field Values

LOCHDR

static final int LOCHDR

See Also:

• Constant Field Values

EXTHDR

static final int EXTHDR

See Also:

• Constant Field Values

CENHDR

static final int CENHDR

See Also:

• Constant Field Values

ENDHDR

static final int ENDHDR

See Also:

• Constant Field Values

LOCVER

static final int LOCVER

See Also:

• Constant Field Values

LOCFLG

static final int LOCFLG

See Also:

• Constant Field Values

LOCHOW

static final int LOCHOW

See Also:

• Constant Field Values

LOCTIM

static final int LOCTIM

See Also:

• Constant Field Values

LOCCRC

static final int LOCCRC

See Also:

• Constant Field Values

LOCSIZ

static final int LOCSIZ

See Also:

• Constant Field Values

LOCLEN

static final int LOCLEN

See Also:

• Constant Field Values

LOCNAM

static final int LOCNAM

See Also:

• Constant Field Values

LOCEXT

static final int LOCEXT

See Also:

• Constant Field Values

EXTCRC

static final int EXTCRC

See Also:

• Constant Field Values

EXTSIZ

static final int EXTSIZ

See Also:

• Constant Field Values

EXTLEN

static final int EXTLEN

See Also:

• Constant Field Values

CENVEM

static final int CENVEM

See Also:

• Constant Field Values

CENVER

static final int CENVER

See Also:

• Constant Field Values

CENFLG

static final int CENFLG

See Also:

• Constant Field Values

CENHOW

static final int CENHOW

See Also:

• Constant Field Values

CENTIM

static final int CENTIM

See Also:

• Constant Field Values

CENCRC

static final int CENCRC

See Also:

• Constant Field Values

CENSIZ

static final int CENSIZ

See Also:

• Constant Field Values

CENLEN

static final int CENLEN

See Also:

• Constant Field Values

CENNAM

static final int CENNAM

See Also:

• Constant Field Values

CENEXT

static final int CENEXT

See Also:

• Constant Field Values

CENCOM

static final int CENCOM

See Also:

• Constant Field Values

CENDSK

static final int CENDSK

See Also:

• Constant Field Values

CENATT

static final int CENATT

See Also:

• Constant Field Values

CENATX

static final int CENATX

See Also:

• Constant Field Values

CENOFF

static final int CENOFF

See Also:

• Constant Field Values

ENDSUB

static final int ENDSUB

See Also:

• Constant Field Values

ENDTOT

static final int ENDTOT

See Also:

• Constant Field Values

ENDSIZ

static final int ENDSIZ

See Also:

• Constant Field Values

ENDOFF

static final int ENDOFF

See Also:

• Constant Field Values

ENDCOM

static final int ENDCOM

See Also:

• Constant Field Values

Constructor Details

VirtualJarInputStream

public VirtualJarInputStream(VirtualFile root)
                      throws IOException

Construct a VirtualJarInputStream from a VirtualFile root

Parameters:

root - VirtualFile directory to use as the base of the virtual Jar.

Throws:

IOException

Method Details

getNextEntry

public ZipEntry getNextEntry()
                      throws IOException

*

Overrides:

getNextEntry in class JarInputStream

Throws:

IOException

getNextJarEntry

public JarEntry getNextJarEntry()
                         throws IOException

*

Overrides:

getNextJarEntry in class JarInputStream

Throws:

IOException

getManifest

public Manifest getManifest()

*

Overrides:

getManifest in class JarInputStream

read

public int read()
         throws IOException

*

Overrides:

read in class ZipInputStream

Throws:

IOException

read

public int read(byte[] b)
         throws IOException

*

Overrides:

read in class FilterInputStream

Throws:

IOException

read

public int read(byte[] b,
 int off,
 int len)
         throws IOException

*

Overrides:

read in class JarInputStream

Throws:

IOException

available

public int available()
              throws IOException

*

Overrides:

available in class ZipInputStream

Throws:

IOException

close

public void close()
           throws IOException

*

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class ZipInputStream

Throws:

IOException

closeEntry

public void closeEntry()
                throws IOException

*

Overrides:

closeEntry in class ZipInputStream

Throws:

IOException

skip

public long skip(long n)
          throws IOException

*

Overrides:

skip in class ZipInputStream

Throws:

IOException

ensureOpen

private void ensureOpen()
                 throws IOException

*

Throws:

IOException

checkForEoSAndReturn

private int checkForEoSAndReturn(int result)
                          throws IOException

Check to see if the result is the EOF and if so exchange the current entry stream with the empty stream.

Parameters:

result -

Returns:

int result

Throws:

IOException

openCurrent

private void openCurrent(VirtualFile current)
                  throws IOException

Open the current virtual file as the current JarEntry stream.

Parameters:

current -

Throws:

IOException

getEntryName

private String getEntryName(VirtualFile entry)

Get the entry name from a VirtualFile.

Parameters:

entry -

Returns:

fixDirectoryName

private String fixDirectoryName(String name)

Make sure directory names end with a trailing slash

Parameters:

name -

Returns: