net.sf.jazzlib
Class ZipFile

java.lang.Object
  extended by net.sf.jazzlib.ZipFile

public class ZipFile
extends java.lang.Object

This class represents a Zip archive. You can ask for the contained entries, or get an input stream for a file entry. The entry is automatically decompressed. This class is thread safe: You can open input streams for arbitrary entries in different threads.

Author:
Jochen Hoenicke, Artur Biesiadowski

Field Summary
static int CENATT
           
static int CENATX
           
static int CENCOM
           
static int CENCRC
           
static int CENDSK
           
static int CENEXT
           
static int CENFLG
           
static int CENHDR
           
static int CENHOW
           
static int CENLEN
           
static int CENNAM
           
static int CENOFF
           
static int CENSIG
           
static int CENSIZ
           
static int CENTIM
           
static int CENVEM
           
static int CENVER
           
static int ENDCOM
           
static int ENDDCD
           
static int ENDHDR
           
static int ENDNRD
           
static int ENDOFF
           
static int ENDSIG
           
static int ENDSIZ
           
static int ENDSUB
           
static int ENDTOT
           
static int EXTCRC
           
static int EXTHDR
           
static int EXTLEN
           
static int EXTSIG
           
static int EXTSIZ
           
static int LOCCRC
           
static int LOCEXT
           
static int LOCFLG
           
static int LOCHDR
           
static int LOCHOW
           
static int LOCLEN
           
static int LOCNAM
           
static int LOCSIG
           
static int LOCSIZ
           
static int LOCTIM
           
static int LOCVER
           
static int OPEN_DELETE
          Mode flag to delete a zip file after reading.
static int OPEN_READ
          Mode flag to open a zip file for reading.
 
Constructor Summary
ZipFile(org.albite.io.RandomReadingFile file)
          Opens a Zip file with the given name for reading.
 
Method Summary
 void close()
          Closes the ZipFile.
 java.util.Enumeration entries()
          Returns an enumeration of all Zip entries in this Zip file.
 ZipEntry getEntry(java.lang.String name)
          Searches for a zip entry in this archive with the given name.
 java.io.InputStream getInputStream(ZipEntry entry)
          Creates an input stream reading the given zip entry as uncompressed data.
 java.lang.String getName()
          Returns the (path) name of this zip file.
 int size()
          Returns the number of entries in this zip file.
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

OPEN_READ

public static final int OPEN_READ
Mode flag to open a zip file for reading.

See Also:
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OPEN_DELETE

public static final int OPEN_DELETE
Mode flag to delete a zip file after reading.

See Also:
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LOCHDR

public static final int LOCHDR
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LOCSIG

public static final int LOCSIG
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LOCVER

public static final int LOCVER
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LOCFLG

public static final int LOCFLG
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LOCHOW

public static final int LOCHOW
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LOCTIM

public static final int LOCTIM
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LOCCRC

public static final int LOCCRC
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LOCSIZ

public static final int LOCSIZ
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LOCLEN

public static final int LOCLEN
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LOCNAM

public static final int LOCNAM
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LOCEXT

public static final int LOCEXT
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EXTSIG

public static final int EXTSIG
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EXTHDR

public static final int EXTHDR
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EXTCRC

public static final int EXTCRC
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EXTSIZ

public static final int EXTSIZ
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EXTLEN

public static final int EXTLEN
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CENSIG

public static final int CENSIG
See Also:
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CENHDR

public static final int CENHDR
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CENVEM

public static final int CENVEM
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CENVER

public static final int CENVER
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CENFLG

public static final int CENFLG
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CENHOW

public static final int CENHOW
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CENTIM

public static final int CENTIM
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CENCRC

public static final int CENCRC
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CENSIZ

public static final int CENSIZ
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CENLEN

public static final int CENLEN
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CENNAM

public static final int CENNAM
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CENEXT

public static final int CENEXT
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CENCOM

public static final int CENCOM
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CENDSK

public static final int CENDSK
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CENATT

public static final int CENATT
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CENATX

public static final int CENATX
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CENOFF

public static final int CENOFF
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ENDSIG

public static final int ENDSIG
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ENDHDR

public static final int ENDHDR
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ENDNRD

public static final int ENDNRD
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ENDDCD

public static final int ENDDCD
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ENDSUB

public static final int ENDSUB
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ENDTOT

public static final int ENDTOT
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ENDSIZ

public static final int ENDSIZ
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ENDOFF

public static final int ENDOFF
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ENDCOM

public static final int ENDCOM
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Constructor Detail

ZipFile

public ZipFile(org.albite.io.RandomReadingFile file)
        throws ZipException,
               java.io.IOException
Opens a Zip file with the given name for reading.

Throws:
java.io.IOException - if a i/o error occured.
ZipException - if the file doesn't contain a valid zip archive.
Method Detail

close

public void close()
           throws java.io.IOException
Closes the ZipFile. This also closes all input streams given by this class. After this is called, no further method should be called.

Throws:
java.io.IOException - if a i/o error occured.

entries

public java.util.Enumeration entries()
Returns an enumeration of all Zip entries in this Zip file.

Note: Returns the original zip entries, so one should not write stuff to them, if one does not want to break something. If that is unsuitable, one can clone the entries first, using their clone method.


getEntry

public ZipEntry getEntry(java.lang.String name)
Searches for a zip entry in this archive with the given name.

Parameters:
the - name. May contain directory components separated by slashes ('/').
Returns:
the zip entry, or null if no entry with that name exists.

Note: Returns the original zip entry, so one should not write stuff to it, if one does not want to break something. If that is unsuitable, one can clone the entry first, using its clone method.


getInputStream

public java.io.InputStream getInputStream(ZipEntry entry)
                                   throws java.io.IOException
Creates an input stream reading the given zip entry as uncompressed data. Normally zip entry should be an entry returned by getEntry() or entries().

Parameters:
entry - the entry to create an InputStream for.
Returns:
the input stream.
Throws:
java.io.IOException - if a i/o error occured.
ZipException - if the Zip archive is malformed.

getName

public java.lang.String getName()
Returns the (path) name of this zip file.


size

public int size()
Returns the number of entries in this zip file.