gcc/libjava/java/util/zip/GZIPOutputStream.java

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ZipOutputStream.java (level): Initial value is Deflater.DEFAULT_COMPRESSION. * java/util/zip/ZipOutputStream.java (level): Initial value is Deflater.DEFAULT_COMPRESSION. (close): New method. (closeEntry): Likewise. (finish): Likewise. (put_version): Likewise. (write_entry): Likewise. (put2, put4): Now return `int'. (comment): Default to empty string. (bytes_written): New instance variable. (chain): Likewise. * java/util/zip/ZipEntry.java (setComment): Limit length of comment string. (setCrc): Check CRC validity. (setExtra): Check argument validity. (setMethod): Likewise. (setSize): Likewise. (ZipEntry): Likewise. * include/javaprims.h: Updated namespace declarations. * Makefile.in: Rebuilt. * Makefile.am (ordinary_java_source_files): Mention new files. (nat_source_files): Likewise. * java/util/zip/ZipFile.java (readu2): Throw ZipException, not EOFException. (read4): Likewise. (getInputStream): Handle compressed entries. * java/util/zip/GZIPOutputStream.java: New file. * java/util/zip/GZIPInputStream.java: New file. * java/util/zip/DataFormatException.java: New file. * java/util/zip/CheckedInputStream.java: New file. * java/util/zip/CheckedOutputStream.java: New file. * java/util/zip/InflaterInputStream.java: Implemented. * java/util/zip/natInflater.cc: New file. * java/util/zip/Deflater.java: Implemented. * java/util/zip/natDeflater.cc: New file. * java/util/zip/DeflaterOutputStream.java: Implemented. * java/util/zip/ZipInputStream.java (closeZipEntry): Throw ZipException, not IOException. * java/util/zip/ZipFile.java (readDirectory): Throw ZipException, not IOException. From-SVN: r26996
1999-05-18 23:33:03 +08:00
// GZIPOutputStream.java - Create a file in gzip format.
/* Copyright (C) 1999 Free Software Foundation
ZipOutputStream.java (level): Initial value is Deflater.DEFAULT_COMPRESSION. * java/util/zip/ZipOutputStream.java (level): Initial value is Deflater.DEFAULT_COMPRESSION. (close): New method. (closeEntry): Likewise. (finish): Likewise. (put_version): Likewise. (write_entry): Likewise. (put2, put4): Now return `int'. (comment): Default to empty string. (bytes_written): New instance variable. (chain): Likewise. * java/util/zip/ZipEntry.java (setComment): Limit length of comment string. (setCrc): Check CRC validity. (setExtra): Check argument validity. (setMethod): Likewise. (setSize): Likewise. (ZipEntry): Likewise. * include/javaprims.h: Updated namespace declarations. * Makefile.in: Rebuilt. * Makefile.am (ordinary_java_source_files): Mention new files. (nat_source_files): Likewise. * java/util/zip/ZipFile.java (readu2): Throw ZipException, not EOFException. (read4): Likewise. (getInputStream): Handle compressed entries. * java/util/zip/GZIPOutputStream.java: New file. * java/util/zip/GZIPInputStream.java: New file. * java/util/zip/DataFormatException.java: New file. * java/util/zip/CheckedInputStream.java: New file. * java/util/zip/CheckedOutputStream.java: New file. * java/util/zip/InflaterInputStream.java: Implemented. * java/util/zip/natInflater.cc: New file. * java/util/zip/Deflater.java: Implemented. * java/util/zip/natDeflater.cc: New file. * java/util/zip/DeflaterOutputStream.java: Implemented. * java/util/zip/ZipInputStream.java (closeZipEntry): Throw ZipException, not IOException. * java/util/zip/ZipFile.java (readDirectory): Throw ZipException, not IOException. From-SVN: r26996
1999-05-18 23:33:03 +08:00
This file is part of libgcj.
This software is copyrighted work licensed under the terms of the
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
details. */
package java.util.zip;
import java.io.IOException;
import java.io.OutputStream;
/**
* @author Tom Tromey
* @date May 17, 1999
*/
/* Written using on-line Java Platform 1.2 API Specification
* and JCL book.
* Believed complete and correct.
*/
public class GZIPOutputStream extends DeflaterOutputStream
{
public void close () throws IOException
{
finish ();
out.close ();
}
public void finish () throws IOException
{
super.finish();
put4 ((int) crc.getValue());
put4 (def.getTotalIn());
}
public GZIPOutputStream (OutputStream out) throws IOException
{
this (out, 512);
}
public GZIPOutputStream (OutputStream out, int readsize) throws IOException
{
super (out, new Deflater (Deflater.DEFAULT_COMPRESSION, true), readsize);
put2 (GZIPInputStream.GZIP_MAGIC);
out.write (GZIPInputStream.Z_DEFLATED);
// No flags for now.
out.write (0);
// No time either.
put2 (0);
put2 (0);
// No xflags either.
out.write (0);
// FIXME: unknown OS.
out.write (255);
crc = new CRC32 ();
}
public synchronized void write (byte[] buf) throws IOException
{
write (buf, 0, buf.length);
}
ZipOutputStream.java (level): Initial value is Deflater.DEFAULT_COMPRESSION. * java/util/zip/ZipOutputStream.java (level): Initial value is Deflater.DEFAULT_COMPRESSION. (close): New method. (closeEntry): Likewise. (finish): Likewise. (put_version): Likewise. (write_entry): Likewise. (put2, put4): Now return `int'. (comment): Default to empty string. (bytes_written): New instance variable. (chain): Likewise. * java/util/zip/ZipEntry.java (setComment): Limit length of comment string. (setCrc): Check CRC validity. (setExtra): Check argument validity. (setMethod): Likewise. (setSize): Likewise. (ZipEntry): Likewise. * include/javaprims.h: Updated namespace declarations. * Makefile.in: Rebuilt. * Makefile.am (ordinary_java_source_files): Mention new files. (nat_source_files): Likewise. * java/util/zip/ZipFile.java (readu2): Throw ZipException, not EOFException. (read4): Likewise. (getInputStream): Handle compressed entries. * java/util/zip/GZIPOutputStream.java: New file. * java/util/zip/GZIPInputStream.java: New file. * java/util/zip/DataFormatException.java: New file. * java/util/zip/CheckedInputStream.java: New file. * java/util/zip/CheckedOutputStream.java: New file. * java/util/zip/InflaterInputStream.java: Implemented. * java/util/zip/natInflater.cc: New file. * java/util/zip/Deflater.java: Implemented. * java/util/zip/natDeflater.cc: New file. * java/util/zip/DeflaterOutputStream.java: Implemented. * java/util/zip/ZipInputStream.java (closeZipEntry): Throw ZipException, not IOException. * java/util/zip/ZipFile.java (readDirectory): Throw ZipException, not IOException. From-SVN: r26996
1999-05-18 23:33:03 +08:00
public synchronized void write (byte[] buf, int off, int len)
throws IOException
{
super.write(buf, off, len);
crc.update(buf, off, len);
}
private final void put2 (int i) throws IOException
{
out.write (i);
out.write (i >> 8);
}
private final void put4 (int i) throws IOException
{
out.write (i);
out.write (i >> 8);
out.write (i >> 16);
out.write (i >> 24);
}
// Checksum used by this stream.
protected CRC32 crc;
}