org.jboss.virtual.plugins.context.jar
Class NoCopyNestedJarHandler

java.lang.Object
  org.jboss.virtual.plugins.context.AbstractVirtualFileHandler
      org.jboss.virtual.plugins.context.AbstractURLHandler
          org.jboss.virtual.plugins.context.jar.AbstractJarHandler
              org.jboss.virtual.plugins.context.jar.NoCopyNestedJarHandler

All Implemented Interfaces:

Serializable, VirtualFileHandler

public class NoCopyNestedJarHandler
extends AbstractJarHandler

Nested Jar Handler.

Version:

$Revision: 1.1 $

Author:

Adrian Brock, Ales Justin

See Also:

Serialized Form

Field Summary

Fields inherited from class org.jboss.virtual.plugins.context.AbstractVirtualFileHandler

cachedLastModified, log

Constructor Summary

NoCopyNestedJarHandler(VFSContext context, VirtualFileHandler parent, JarFile parentJar, ZipEntry entry, URL url, String entryName)
Create a new NestedJarHandler.

Method Summary

boolean	delete(int gracePeriod) Delete the file represented by this handler.
VirtualFileHandler	getChild(String path) Get a child
List<VirtualFileHandler>	getChildren(boolean ignoreErrors) Get the children
long	getLastModified() When the file was last modified
long	getSize() Get the size
protected void	initCacheLastModified()
protected void	internalReplaceChild(VirtualFileHandler original, VirtualFileHandler replacement) Replace original child with unpacked replacement.
boolean	isArchive() Does this represent an archive.
boolean	isNested() Are we nested in some archive.
InputStream	openStream() Access the file contents.
boolean	removeChild(String name) Remove a child

Methods inherited from class org.jboss.virtual.plugins.context.jar.AbstractJarHandler

fromURL, getEntry, getJar, getURL, handleJarFile, isLeaf

Methods inherited from class org.jboss.virtual.plugins.context.AbstractURLHandler

exists, getURL, isHidden, openConnection, openConnection, toURI, toURL

Methods inherited from class org.jboss.virtual.plugins.context.AbstractVirtualFileHandler

checkClosed, checkParentExists, cleanup, close, decrement, doClose, equals, getChildPathName, getChildVfsUrl, getLocalPathName, getLocalVFSContext, getName, getParent, getPathName, getRealURL, getReferences, getVFSContext, getVfsUrl, getVirtualFile, hasBeenModified, hashCode, increment, isTemporary, replaceChild, setPathName, setVfsUrl, simpleFindChild, structuredFindChild, toInternalVfsUrl, toString, toStringLocal, toVfsUrl

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

NoCopyNestedJarHandler

public NoCopyNestedJarHandler(VFSContext context,
                              VirtualFileHandler parent,
                              JarFile parentJar,
                              ZipEntry entry,
                              URL url,
                              String entryName)
                       throws IOException

Create a new NestedJarHandler.

Parameters:

context - the context

parent - the parent

parentJar - the parent jar file

entry - the jar entry

url - the url

entryName - the entry name

Throws:

IOException - for an error accessing the file system

IllegalArgumentException - for a null context, url or vfsPath

Method Detail

initCacheLastModified

protected void initCacheLastModified()

Overrides:

initCacheLastModified in class AbstractURLHandler

getLastModified

public long getLastModified()
                     throws IOException

Description copied from interface: VirtualFileHandler

When the file was last modified

Specified by:

getLastModified in interface VirtualFileHandler

Overrides:

getLastModified in class AbstractURLHandler

Returns:

the last modified time

Throws:

IOException - for any problem accessing the virtual file system

getSize

public long getSize()
             throws IOException

Description copied from interface: VirtualFileHandler

Get the size

Specified by:

getSize in interface VirtualFileHandler

Overrides:

getSize in class AbstractURLHandler

Returns:

the size

Throws:

IOException - for any problem accessing the virtual file system

isArchive

public boolean isArchive()
                  throws IOException

Description copied from interface: VirtualFileHandler

Does this represent an archive. e.g. zip, tar, ...

Specified by:

isArchive in interface VirtualFileHandler

Overrides:

isArchive in class AbstractVirtualFileHandler

Returns:

true if archive, false otherwise

Throws:

IOException - for any problem accessing the virtual file system

isNested

public boolean isNested()
                 throws IOException

Description copied from interface: VirtualFileHandler

Are we nested in some archive.

Returns:

true if this is archive entry

Throws:

IOException - for any error

openStream

public InputStream openStream()
                       throws IOException

Description copied from interface: VirtualFileHandler

Access the file contents.

Specified by:

openStream in interface VirtualFileHandler

Overrides:

openStream in class AbstractURLHandler

Returns:

An InputStream for the file contents.

Throws:

IOException - for any problem accessing the virtual file system

getChild

public VirtualFileHandler getChild(String path)
                            throws IOException

Description copied from interface: VirtualFileHandler

Get a child

Parameters:

path - the path

Returns:

the child or null if not found

Throws:

IOException - for an error accessing the file system

removeChild

public boolean removeChild(String name)
                    throws IOException

Description copied from interface: VirtualFileHandler

Remove a child

Parameters:

name - child name

Returns:

true if child was removed, false otherwise

Throws:

IOException - if an error occurs

getChildren

public List<VirtualFileHandler> getChildren(boolean ignoreErrors)
                                     throws IOException

Description copied from interface: VirtualFileHandler

Get the children

Parameters:

ignoreErrors - whether to ignore errors

Returns:

the children

Throws:

IOException - for an error accessing the file system

delete

public boolean delete(int gracePeriod)

Description copied from class: AbstractVirtualFileHandler

Delete the file represented by this handler. File deletion is comprised of two parts:

1. physical file deletion - performed by this method or its override
2. removal of any child references from the parent - performed by VirtualFileHandler.removeChild(String) of the parent

This method doesn't do any physical file removal because it has no concept of underlying physical file. An implementation that does physical file removal should override this method and call super.delete() at the end.

Specified by:

delete in interface VirtualFileHandler

Overrides:

delete in class AbstractVirtualFileHandler

Parameters:

gracePeriod - max time to wait for any locks

Returns:

true if file was deleted, false otherwise

internalReplaceChild

protected void internalReplaceChild(VirtualFileHandler original,
                                    VirtualFileHandler replacement)

Description copied from class: AbstractVirtualFileHandler

Replace original child with unpacked replacement.

Overrides:

internalReplaceChild in class AbstractVirtualFileHandler

Parameters:

original - the original

replacement - the replacement