diff options
author | tromey <tromey@138bc75d-0d04-0410-961f-82ee72b054a4> | 1999-05-18 15:33:03 +0000 |
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committer | tromey <tromey@138bc75d-0d04-0410-961f-82ee72b054a4> | 1999-05-18 15:33:03 +0000 |
commit | e3b4a43d3b394f8009bdae0960c9e3240f8cf736 (patch) | |
tree | c538fe74824c64ba74944a357c354f0c77e93be5 /libjava/java/util/zip/DeflaterOutputStream.java | |
parent | addd693c880eb9310e8229fbbb4a37df4f550367 (diff) | |
download | ppe42-gcc-e3b4a43d3b394f8009bdae0960c9e3240f8cf736.tar.gz ppe42-gcc-e3b4a43d3b394f8009bdae0960c9e3240f8cf736.zip |
* 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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@26996 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libjava/java/util/zip/DeflaterOutputStream.java')
-rw-r--r-- | libjava/java/util/zip/DeflaterOutputStream.java | 65 |
1 files changed, 53 insertions, 12 deletions
diff --git a/libjava/java/util/zip/DeflaterOutputStream.java b/libjava/java/util/zip/DeflaterOutputStream.java index 4f0b8b454a5..ce5ae23101f 100644 --- a/libjava/java/util/zip/DeflaterOutputStream.java +++ b/libjava/java/util/zip/DeflaterOutputStream.java @@ -1,3 +1,5 @@ +// DeflaterOutputStream.java - Output filter for compressing. + /* Copyright (C) 1999 Cygnus Solutions This file is part of libgcj. @@ -7,40 +9,79 @@ Libgcj License. Please consult the file "LIBGCJ_LICENSE" for details. */ package java.util.zip; -import java.io.*; -/** JUST AN INCOMPLETE STUB! */ +import java.io.FilterOutputStream; +import java.io.OutputStream; +import java.io.IOException; + +/** + * @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 DeflaterOutputStream extends FilterOutputStream { - protected byte[] buf; + public void close () throws IOException + { + finish (); + out.close(); + } - protected Deflater def; + protected void deflate () throws IOException + { + while (true) + { + int len = def.deflate(buf, 0, buf.length); + if (len == 0 || len == -1) + break; + out.write(buf, 0, len); + } + } - public DeflaterOutputStream(OutputStream out) + public DeflaterOutputStream (OutputStream out) { - this(out, null, 512); + this (out, new Deflater (), 512); } - public DeflaterOutputStream(OutputStream out, Deflater defl) + public DeflaterOutputStream (OutputStream out, Deflater defl) { - this(out, defl, 512); + this (out, defl, 512); } public DeflaterOutputStream(OutputStream out, Deflater defl, int bufsize) { - super(out); + super (out); buf = new byte[bufsize]; def = defl; } public void finish () throws IOException { + def.finish(); + deflate (); } - public void close () throws IOException + public void write (int bval) throws IOException { - finish(); - out.close(); + byte[] b = new byte[1]; + b[0] = (byte) bval; + write (b, 0, 1); + } + + public void write (byte[] buf, int off, int len) throws IOException + { + def.setInput (buf, off, len); + deflate (); } + + // The retrieval buffer. + protected byte[] buf; + + // Deflater used to compress data. + protected Deflater def; } |