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Java Source Code / Java Documentation » Test Coverage » GroboUtils » net.sourceforge.groboutils.codecoverage.v2.ant.zip 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   java.io.OutputStream
      java.io.FilterOutputStream
         net.sourceforge.groboutils.codecoverage.v2.ant.zip.ZipOutputStream

ZipOutputStream
public class ZipOutputStream extends FilterOutputStream (Code)
Reimplementation of java.util.zip.ZipOutputStreamjava.util.zip.ZipOutputStream that does handle the extended functionality of this package, especially internal/external file attributes and extra fields with different layouts for local file data and central directory entries.

This class will try to use java.io.RandomAccessFileRandomAccessFile when you know that the output is going to go to a file.

If RandomAccessFile cannot be used, this implementation will use a Data Descriptor to store size and CRC information for ZipOutputStream.DEFLATED DEFLATED entries, this means, you don't need to calculate them yourself. Unfortunately this is not possible for the ZipOutputStream.STORED STORED method, here setting the CRC and uncompressed size information is required before ZipOutputStream.putNextEntry putNextEntry can be called.


author:
   Stefan Bodewig
author:
   Richard Evans
version:
   $Revision: 1.1 $


Field Summary
final protected static  ZipLongCFH_SIG
    
final protected static  ZipLongDD_SIG
    
final public static  intDEFLATED
     Compression method for deflated entries.
final protected static  ZipLongEOCD_SIG
    
final protected static  ZipLongLFH_SIG
    
final public static  intSTORED
     Compression method for deflated entries.
protected  byte[]buf
     Deflater buffer

This attribute is only protected to provide a level of API backwards compatibility.

protected  Deflaterdef
     Deflater object for output

This attribute is only protected to provide a level of API backwards compatibility.


Constructor Summary
public  ZipOutputStream(OutputStream out)
     Creates a new ZIP OutputStream filtering the underlying stream.
public  ZipOutputStream(File file)
     Creates a new ZIP OutputStream writing to a File.

Method Summary
public  voidclose()
     Closes this output stream and releases any system resources associated with the stream.
public  voidcloseEntry()
     Writes all necessary data for this entry.
final protected  voiddeflate()
     Writes next block of compressed data to the output stream.
public  voidfinish()
     Finishs writing the contents and closes this as well as the underlying stream.
public  voidflush()
     Flushes this output stream and forces any buffered output bytes to be written out to the stream.
protected  byte[]getBytes(String name)
     Retrieve the bytes for the given String in the encoding set for this Stream.
public  StringgetEncoding()
     The encoding to use for filenames and the file comment.
public  booleanisSeekable()
     Is this archive writing to a seekable stream (i.e.
public  voidputNextEntry(ZipEntry ze)
     Begin writing next entry.
public  voidsetComment(String comment)
     Set the file comment.
public  voidsetEncoding(String encoding)
     The encoding to use for filenames and the file comment.
public  voidsetLevel(int level)
     Sets the compression level for subsequent entries.
public  voidsetMethod(int method)
     Sets the default compression method for subsequent entries.
protected static  ZipLongtoDosTime(Date time)
     Convert a Date object to a DOS date/time field.
public  voidwrite(byte[] b, int offset, int length)
     Writes bytes to ZIP entry.
public  voidwrite(int b)
     Writes a single byte to ZIP entry.
protected  voidwriteCentralDirectoryEnd()
    
protected  voidwriteCentralFileHeader(ZipEntry ze)
    
protected  voidwriteDataDescriptor(ZipEntry ze)
    
protected  voidwriteLocalFileHeader(ZipEntry ze)
    
final protected  voidwriteOut(byte[] data)
    
final protected  voidwriteOut(byte[] data, int offset, int length)
    

Field Detail
CFH_SIG
final protected static ZipLong CFH_SIG(Code)
central file header signature
since:
   1.1



DD_SIG
final protected static ZipLong DD_SIG(Code)
data descriptor signature
since:
   1.1



DEFLATED
final public static int DEFLATED(Code)
Compression method for deflated entries.
since:
   1.1



EOCD_SIG
final protected static ZipLong EOCD_SIG(Code)
end of central dir signature
since:
   1.1



LFH_SIG
final protected static ZipLong LFH_SIG(Code)
local file header signature
since:
   1.1



STORED
final public static int STORED(Code)
Compression method for deflated entries.
since:
   1.1



buf
protected byte[] buf(Code)
Deflater buffer

This attribute is only protected to provide a level of API backwards compatibility. This class used to extend java.util.zip.DeflaterOutputStream DeflaterOutputStream up to Revision 1.13.


since:
   1.14



def
protected Deflater def(Code)
Deflater object for output

This attribute is only protected to provide a level of API backwards compatibility. This class used to extend java.util.zip.DeflaterOutputStream DeflaterOutputStream up to Revision 1.13.


since:
   1.14




Constructor Detail
ZipOutputStream
public ZipOutputStream(OutputStream out)(Code)
Creates a new ZIP OutputStream filtering the underlying stream.
since:
   1.1



ZipOutputStream
public ZipOutputStream(File file) throws IOException(Code)
Creates a new ZIP OutputStream writing to a File. Will use random access if possible.
since:
   1.14




Method Detail
close
public void close() throws IOException(Code)
Closes this output stream and releases any system resources associated with the stream.
exception:
  IOException - if an I/O error occurs.
since:
   1.14



closeEntry
public void closeEntry() throws IOException(Code)
Writes all necessary data for this entry.
since:
   1.1



deflate
final protected void deflate() throws IOException(Code)
Writes next block of compressed data to the output stream.
since:
   1.14



finish
public void finish() throws IOException(Code)
Finishs writing the contents and closes this as well as the underlying stream.
since:
   1.1



flush
public void flush() throws IOException(Code)
Flushes this output stream and forces any buffered output bytes to be written out to the stream.
exception:
  IOException - if an I/O error occurs.
since:
   1.14



getBytes
protected byte[] getBytes(String name) throws ZipException(Code)
Retrieve the bytes for the given String in the encoding set for this Stream.
since:
   1.3



getEncoding
public String getEncoding()(Code)
The encoding to use for filenames and the file comment. null if using the platform's default character encoding.
since:
   1.3



isSeekable
public boolean isSeekable()(Code)
Is this archive writing to a seekable stream (i.e. a random access file)?

For seekable streams, you don't need to calculate the CRC or uncompressed size for ZipOutputStream.STORED STORED entries before invoking ZipOutputStream.putEntry putEntry .
since:
   1.17




putNextEntry
public void putNextEntry(ZipEntry ze) throws IOException(Code)
Begin writing next entry.
since:
   1.1



setComment
public void setComment(String comment)(Code)
Set the file comment.
since:
   1.1



setEncoding
public void setEncoding(String encoding)(Code)
The encoding to use for filenames and the file comment.

For a list of possible values see http://java.sun.com/products/jdk/1.2/docs/guide/internat/encoding.doc.html. Defaults to the platform's default character encoding.


since:
   1.3



setLevel
public void setLevel(int level)(Code)
Sets the compression level for subsequent entries.

Default is Deflater.DEFAULT_COMPRESSION.


since:
   1.1



setMethod
public void setMethod(int method)(Code)
Sets the default compression method for subsequent entries.

Default is DEFLATED.


since:
   1.1



toDosTime
protected static ZipLong toDosTime(Date time)(Code)
Convert a Date object to a DOS date/time field.

Stolen from InfoZip's fileio.c


since:
   1.1



write
public void write(byte[] b, int offset, int length) throws IOException(Code)
Writes bytes to ZIP entry.



write
public void write(int b) throws IOException(Code)
Writes a single byte to ZIP entry.

Delegates to the three arg method.


since:
   1.14



writeCentralDirectoryEnd
protected void writeCentralDirectoryEnd() throws IOException(Code)
Writes the "End of central dir record"
since:
   1.1



writeCentralFileHeader
protected void writeCentralFileHeader(ZipEntry ze) throws IOException(Code)
Writes the central file header entry
since:
   1.1



writeDataDescriptor
protected void writeDataDescriptor(ZipEntry ze) throws IOException(Code)
Writes the data descriptor entry
since:
   1.1



writeLocalFileHeader
protected void writeLocalFileHeader(ZipEntry ze) throws IOException(Code)
Writes the local file header entry
since:
   1.1



writeOut
final protected void writeOut(byte[] data) throws IOException(Code)
Write bytes to output or random access file
since:
   1.14



writeOut
final protected void writeOut(byte[] data, int offset, int length) throws IOException(Code)
Write bytes to output or random access file
since:
   1.14



Fields inherited from java.io.FilterOutputStream
protected OutputStream out(Code)(Java Doc)

Methods inherited from java.io.FilterOutputStream
public void close() throws IOException(Code)(Java Doc)
public void flush() throws IOException(Code)(Java Doc)
public void write(int b) throws IOException(Code)(Java Doc)
public void write(byte b) throws IOException(Code)(Java Doc)
public void write(byte b, int off, int len) throws IOException(Code)(Java Doc)

Methods inherited from java.io.OutputStream
public void close() throws IOException(Code)(Java Doc)
public void flush() throws IOException(Code)(Java Doc)
abstract public void write(int b) throws IOException(Code)(Java Doc)
public void write(byte b) throws IOException(Code)(Java Doc)
public void write(byte b, int off, int len) throws IOException(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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