Package org.refcodes.io

Class ZipFileInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

java.io.BufferedInputStream

org.refcodes.io.ZipFileInputStream

public class ZipFileInputStream
extends java.io.BufferedInputStream

Represents an InputStream from a provided File: In case the file points to a ZIP compressed file, then the uncompressed data of the therein contained file with the same name excluding the ".zip" extension is provided by the InputStream.

Field Summary

Fields inherited from class java.io.BufferedInputStream

buf, count, marklimit, markpos, pos

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

Constructors

Constructor	Description
ZipFileInputStream(java.io.File aFile)	Instantiates a new zip file input stream impl.
ZipFileInputStream(java.io.File parent, java.lang.String child)	Instantiates a new zip file input stream impl.
ZipFileInputStream(java.lang.String pathname)	Instantiates a new zip file input stream impl.
ZipFileInputStream(java.lang.String parent, java.lang.String child)	Instantiates a new zip file input stream impl.
ZipFileInputStream(java.net.URI uri)	Instantiates a new zip file input stream impl.

Method Summary

Modifier and Type	Method	Description
protected static java.lang.String	toFileNameFromZip(java.lang.String aZipFileName)	Truncates the ".zip" suffix from the filename and returns the result.
protected static java.io.InputStream	toInputStream(java.io.File aFile)	Returns an InputStream from the provided File.

Methods inherited from class java.io.BufferedInputStream

available, close, mark, markSupported, read, read, reset, skip

Methods inherited from class java.io.FilterInputStream

read

Methods inherited from class java.io.InputStream

readAllBytes, readNBytes, transferTo

Methods inherited from class java.lang.Object

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

Constructor Detail

ZipFileInputStream

public ZipFileInputStream(java.io.File parent,
                          java.lang.String child)
                   throws java.util.zip.ZipException,
                          java.io.FileNotFoundException,
                          java.io.IOException

Instantiates a new zip file input stream impl.

Parameters:

parent - the parent

child - the child

Throws:

java.util.zip.ZipException - the zip exception

java.io.FileNotFoundException - the file not found exception

java.io.IOException - Signals that an I/O exception has occurred.

ZipFileInputStream

public ZipFileInputStream(java.lang.String parent,
                          java.lang.String child)
                   throws java.util.zip.ZipException,
                          java.io.FileNotFoundException,
                          java.io.IOException

Instantiates a new zip file input stream impl.

Parameters:

parent - the parent

child - the child

Throws:

java.util.zip.ZipException - the zip exception

java.io.FileNotFoundException - the file not found exception

java.io.IOException - Signals that an I/O exception has occurred.

ZipFileInputStream

public ZipFileInputStream(java.lang.String pathname)
                   throws java.util.zip.ZipException,
                          java.io.FileNotFoundException,
                          java.io.IOException

Instantiates a new zip file input stream impl.

Parameters:

pathname - the pathname

Throws:

java.util.zip.ZipException - the zip exception

java.io.FileNotFoundException - the file not found exception

java.io.IOException - Signals that an I/O exception has occurred.

ZipFileInputStream

public ZipFileInputStream(java.net.URI uri)
                   throws java.util.zip.ZipException,
                          java.io.FileNotFoundException,
                          java.io.IOException

Instantiates a new zip file input stream impl.

Parameters:

uri - the uri

Throws:

java.util.zip.ZipException - the zip exception

java.io.FileNotFoundException - the file not found exception

java.io.IOException - Signals that an I/O exception has occurred.

ZipFileInputStream

public ZipFileInputStream(java.io.File aFile)
                   throws java.util.zip.ZipException,
                          java.io.FileNotFoundException,
                          java.io.IOException

Instantiates a new zip file input stream impl.

Parameters:

aFile - the file

Throws:

java.util.zip.ZipException - the zip exception

java.io.FileNotFoundException - the file not found exception

java.io.IOException - Signals that an I/O exception has occurred.

Method Detail

toInputStream

protected static java.io.InputStream toInputStream(java.io.File aFile)
                                            throws java.util.zip.ZipException,
                                                   java.io.IOException,
                                                   java.io.FileNotFoundException

Returns an InputStream from the provided File. In case the file points to a ZIP compressed file, then the uncompressed data is provided by the InputStream.

Parameters:

aFile - The File for which to get the InputStream.

Returns:

An InputStream, in case of a ZIP compressed File, an uncompressed InputStream is returned.

Throws:

java.util.zip.ZipException - in case there were problems when accessing the ZIP compressed File.

java.io.IOException - in case there were problems working with the File.

java.io.FileNotFoundException - in case there was none such File found.

toFileNameFromZip

protected static java.lang.String toFileNameFromZip(java.lang.String aZipFileName)

Truncates the ".zip" suffix from the filename and returns the result. For example a file with name "log-2023-07-12.txt.zip" results in "log-2023-07-12.txt".

Parameters:

aZipFileName - The file name of the ZIP file for which to get the "inner" file name.

Returns:

The "inner" file name if the file suffix was ".zip", else null.