lumis.portal.serialization.persistency.zip
Class ZipDirectory

java.lang.Object
  lumis.portal.serialization.persistency.zip.ZipDirectory

All Implemented Interfaces:

Closeable, IDirectory, IFSDirectory

public class ZipDirectory
extends Object
implements IFSDirectory

IDirectory implementation that uses a zip file as the concrete repository. This implementation allows only one open stream at a time. Tries to get some input or output stream when another stream was got and not closed yet will raise an StreamStillOpenException.

Since:

4.0.10

Constructor Summary

ZipDirectory(File zipFile)

ZipDirectory(File zipFile, boolean createIfNotExist)

ZipDirectory(String zipFilePath)

Method Summary

void	close()
void	delete() Delete the repository.
boolean	exists(String filePath) Check the existence of a file.
protected void	finalize()
String	getDescription() Generate a general description of the directory, used mainly to compose exception messages.
String	getDirectoryPath()
InputStream	getInputStream(String filePath) Get an InputStream to a repository file.
OutputStream	getOutputStream(String filePath) Get an OutputStream to a repository file.

Methods inherited from class java.lang.Object

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

Constructor Detail

ZipDirectory

public ZipDirectory(String zipFilePath)
             throws FileNotFoundException

Parameters:

zipFilePath - path to the zip file.

Throws:

FileNotFoundException - if the zip file was not found.

ZipDirectory

public ZipDirectory(File zipFile)
             throws FileNotFoundException

Parameters:

zipFile - File that wraps the zip file.

Throws:

FileNotFoundException - if the zip file was not found.

ZipDirectory

public ZipDirectory(File zipFile,
                    boolean createIfNotExist)
             throws FileNotFoundException,
                    IOException

Parameters:

zipFile - File that wraps the zip file.

createIfNotExist - if true, the zip file will be created if it does not exist.

Throws:

FileNotFoundException - if the zip file was not found and createIfNotExist=false.

IOException

Method Detail

exists

public boolean exists(String filePath)
               throws IOException

Check the existence of a file.

Specified by:

exists in interface IDirectory

Parameters:

filePath - path to the file to be checked.

Returns:

true, if the specified file exists.

Throws:

IllegalStateException - if this method is called in an already closed instance.

IOException - if an I/O error occurs.

getDescription

public String getDescription()

Description copied from interface: IDirectory

Generate a general description of the directory, used mainly to compose exception messages.

Specified by:

getDescription in interface IDirectory

Returns:

directory description.

getInputStream

public InputStream getInputStream(String filePath)
                           throws StreamStillOpenException,
                                  FileNotFoundException,
                                  IOException

Get an InputStream to a repository file.

This implementation does not allow more than one stream open at a time.

Specified by:

getInputStream in interface IDirectory

Parameters:

filePath - path to the file.

Returns:

InputStream to file found in specified filePath.

Throws:

StreamStillOpenException - if there is another stream that was gotten and not closed yet.

IllegalStateException - if this method is called in an already closed instance.

FileNotFoundException - if no file was found in specified filePath.

IOException - if an I/O error occurs.

getOutputStream

public OutputStream getOutputStream(String filePath)
                             throws StreamStillOpenException,
                                    IOException

Get an OutputStream to a repository file.

Due to an output optimization, this implementation does not persist the new files just after closing the OutputStream. To commit the persistence, the method close() must be called.

This implementation does not allow more than one stream open at a time.

If the file already exists, an IOException will be thrown.

Specified by:

getOutputStream in interface IDirectory

Parameters:

filePath - path to the file.

Returns:

OutputStream to the new file

Throws:

StreamStillOpenException - if there is another stream that was gotten and not closed yet.

IllegalStateException - if this method is called in an already closed instance.

IOException - if an I/O error occurs.

close

public void close()
           throws IOException

In this implementation, this method MUST be called in order to persist new added files.

Specified by:

close in interface Closeable

Throws:

IOException

delete

public void delete()
            throws IOException

Description copied from interface: IDirectory

Delete the repository.

Specified by:

delete in interface IDirectory

Throws:

IOException - if an I/O error occurs.

finalize

protected void finalize()
                 throws Throwable

Overrides:

finalize in class Object

Throws:

Throwable

getDirectoryPath

public String getDirectoryPath()

Specified by:

getDirectoryPath in interface IFSDirectory