java.lang.Object
java.io.InputStream
java.io.FilterInputStream
java.util.zip.InflaterInputStream
java.util.zip.GZIPInputStream
- All Implemented Interfaces:
- Closeable
- See Also:
- Top Examples, Source Code
public void close()
throws IOException- See Also:
FilterInputStream.in, InflaterInputStream, Closeable
- Geek's Notes:
- Description Add your codes or notes Search More Java Examples
protected CRC32 crc
- Geek's Notes:
- Description Add your codes or notes Search More Java Examples
protected boolean eos
- Geek's Notes:
- Description Add your codes or notes Search More Java Examples
public GZIPInputStream(InputStream in)
throws IOException- Geek's Notes:
- Description Add your codes or notes Search More Java Examples
[172]Compress and decompress the data using GZIP
By Manivannan (manivana { at } yahoo { dot } com) on 2005/03/31 08:15:30 Rate
import java.util.zip.GZIPOutputStream;
import java.util.zip.GZIPInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.BufferedReader;
import java.io.InputStreamReader;
public class GZIPHandler
{
public void compress ( OutputStream outStream, String respMessage )
{
GZIPOutputStream gzos = null;
try
{
byte bytesData [ ] = respMessage.getBytes ( ) ;
gzos = new GZIPOutputStream ( outStream, bytesData.length ) ;
gzos.write ( bytesData, 0, bytesData.length ) ;
gzos.finish ( ) ;
}
catch ( IOException ioException )
{
System.out.println ( "Exception Occured in Catch Block"+ioExc.getMessage ( ) ) ;
}
finally
{
try
{
gzos.close ( ) ;
}
catch ( IOException ioException )
{
System.out.println ( "Exception Occured in finally block"+ioExc.getMessage ( ) ) ;
}
}
}
public String decompress ( InputStream request )
{
StringBuffer xmlStr = null;
String str = null;
GZIPInputStream gzip = null;
BufferedReader zipReader = null;
try
{
gzip = new GZIPInputStream ( request ) ;
zipReader = new BufferedReader ( new InputStreamReader ( gzip ) ) ;
char chars [ ] = new char [ 1024 ] ;
int len = 0;
xmlStr = new StringBuffer ( ) ;
//Write chunks of characters to the StringBuffer
while ( ( len = zipReader.read ( chars, 0, chars.length ) ) > = 0 )
{
xmlStr.append ( chars, 0, len ) ;
}
chars = null;
}
catch ( IOException ioExc )
{
System.out.println ( "Exception Occured in Catch Block"+ioExc.getMessage ( ) ) ;
}
finally
{
try
{
gzip.close ( ) ;
zipReader.close ( ) ;
}
catch ( IOException ioExc )
{
System.out.println ( "Exception Occured in finally block"+ioExc.getMessage ( ) ) ;
}
}
return xmlStr.toString ( ) ;
}
}
public GZIPInputStream(InputStream in,
int size)
throws IOException- See Also:
- IllegalArgumentException
- Geek's Notes:
- Description Add your codes or notes Search More Java Examples
public static final int GZIP_MAGIC
- Geek's Notes:
- Description Add your codes or notes Search More Java Examples
public int read(byte[] buf,
int off,
int len)
throws IOException- See Also:
FilterInputStream.in, InflaterInputStream
- Geek's Notes:
- Description Add your codes or notes Search More Java Examples
[1907]Read and decompose Tar Gzip file
By Anonymous on 2007/08/05 20:16:33 Rate
import extended byorg.apache.commons.compress.tar.TarInputStream
import org.apache.commons.compress.tar.TarEntry
public static InputStream getInputStream ( String tarFileName ) throws Exception {
if ( tarFileName.substring ( tarFileName.lastIndexOf ( "." ) + 1, tarFileName.lastIndexOf ( "." ) + 3 ) .equalsIgnoreCase ( "gz" ) ) {
System.out.println ( "Creating an GZIPInputStream for the file" ) ;
return new GZIPInputStream ( new FileInputStream ( new File ( tarFileName ) ) ) ;
} else {
System.out.println ( "Creating an InputStream for the file" ) ;
return new FileInputStream ( new File ( tarFileName ) ) ;
}
}
public static void readTar ( InputStream in, String untarDir ) throws IOException {
System.out.println ( "Reading TarInputStream... ( using classes from http://www.trustice.com/java/tar/ ) " ) ;
TarInputStream tin = new TarInputStream ( in ) ;
TarEntry tarEntry = tin.getNextEntry ( ) ;
if ( new File ( untarDir ) .exists ( ) ) {
while ( tarEntry != null ) {
File destPath = new File ( untarDir + File.separatorChar + tarEntry.getName ( ) ) ;
System.out.println ( "Processing " + destPath.getAbsoluteFile ( ) ) ;
if ( !tarEntry.isDirectory ( ) ) {
FileOutputStream fout = new FileOutputStream ( destPath ) ;
tin.copyEntryContents ( fout ) ;
fout.close ( ) ;
} else {
destPath.mkdir ( ) ;
}
tarEntry = tin.getNextEntry ( ) ;
}
tin.close ( ) ;
} else {
System.out.println ( "That destination directory doesn't exist! " + untarDir ) ;
}
}
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