Class CompressedFileManager

java.lang.Object

com.ibm.dtfj.utils.file.FileManager

com.ibm.dtfj.utils.file.SimpleFileManager

com.ibm.dtfj.utils.file.CompressedFileManager

Direct Known Subclasses:

GZipFileManager, ZipFileManager

public abstract class CompressedFileManager
extends SimpleFileManager

Abstract class for handling compressed files

Field Summary

Fields

Modifier and Type	Field	Description
protected final byte[]	buffer

Fields declared in class SimpleFileManager

managedFile

Modifier and Type	Field	Description
protected final File	managedFile

Fields declared in class FileManager

logger, MIN_CORE_SIZE

Modifier and Type	Field	Description
protected static final Logger	logger
static final long	MIN_CORE_SIZE

Constructor Summary

Constructors

Constructor	Description
CompressedFileManager(File file)

Method Summary

Modifier and Type	Method	Description
protected void	checkDirectoryToExtractTo(File todir)	Will check that the directory to extract to is a directory if it exists or create it otherwise.
abstract void	extract(ManagedImageSource file, File todir)
abstract void	extract(File todir)
protected void	extractEntry(InputStream in, File path)
ManagedImageSource	getImageSource(String path)	Returns a specified image source specified by the path in the zip file
abstract ImageInputStream	getStream(ManagedImageSource source)

Methods declared in class SimpleFileManager

getImageSources, getStream

Modifier and Type	Method	Description
List<ManagedImageSource>	getImageSources()
ImageInputStream	getStream()	Gets a stream for the file which is being managed, this could be an archive file or a normal file.

Methods declared in class FileManager

createTempDir, fileExists, genJavacoreName, getJavaCoreNameFromPHD, getManager, isArchive

Modifier and Type	Method	Description
static File	createTempDir(File parent)	Creates a unique temporary directory under the specified parent
static boolean	fileExists(File file)	A platform aware file existence checker that allows for MVS datasets on z/OS
protected String	genJavacoreName(String[] s, int inc, int componentToInc)
protected String[]	getJavaCoreNameFromPHD(String name)	Generate a list of possible javacore names from a given phd name.
static FileManager	getManager(File file)	Factory method for getting the correct manager to deal with the supplied file
static boolean	isArchive(File file)

Methods declared in class Object

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

Field Details

buffer

protected final byte[] buffer

Constructor Details

CompressedFileManager

public CompressedFileManager(File file)

Method Details

extract

public abstract void extract(File todir)
                      throws IOException

Throws:

IOException

extract

public abstract void extract(ManagedImageSource file,
 File todir)
                      throws IOException

Throws:

IOException

getStream

public abstract ImageInputStream getStream(ManagedImageSource source)
                                    throws IOException

Throws:

IOException

checkDirectoryToExtractTo

protected void checkDirectoryToExtractTo(File todir)

Will check that the directory to extract to is a directory if it exists or create it otherwise.

Parameters:

todir - directory to extract to

Throws:

IllegalArgumentException - if the specified File is not a directory

getImageSource

public ManagedImageSource getImageSource(String path)
                                  throws IOException

Returns a specified image source specified by the path in the zip file

Parameters:

path - path within the zip

Returns:

the created image

Throws:

IOException - for problems creating the image or FileNotFoundException if the file specified by the path could not be found

extractEntry

protected void extractEntry(InputStream in,
 File path)
                     throws IOException

Throws:

IOException