/// <summary>
/// Decompresses data into the byte array
/// </summary>
/// <param name ="b">
/// the array to read and decompress data into
/// </param>
/// <param name ="off">
/// the offset indicating where the data should be placed
/// </param>
/// <param name ="len">
/// the number of bytes to decompress
/// </param>
public override int Read(byte[] b, int off, int len)
{
for (;;)
{
int count;
try {
count = inf.Inflate(b, off, len);
} catch (Exception dfe) {
throw new Exception(dfe.ToString());
}
if (count > 0)
{
return(count);
}
if (inf.NeedsDictionary())
{
throw new Exception("Need a dictionary");
}
else if (inf.Finished())
{
return(-1);
}
else if (inf.NeedsInput())
{
Fill();
}
else
{
throw new Exception("Don't know what to do");
}
}
}
private void readChunkUnzip(Inflater inflater, byte[] buffer, int offset, int length)
{
try
{
do
{
int read = inflater.Inflate(buffer, offset, length);
if (read <= 0)
{
if (inflater.Finished())
{
throw new EOFException();
}
if (inflater.NeedsInput())
{
refillInflater(inflater);
}
else
{
throw new IOException("Can't inflate " + length + " bytes");
}
}
else
{
offset += read;
length -= read;
}
} while (length > 0);
}
catch (DataFormatException ex)
{
throw (IOException)(new IOException("inflate error").InitCause(ex));
}
}
/// <summary>
/// Flushes this output stream, forcing any pending buffered output bytes to be
/// written.
/// </summary>
/// <exception cref="IOException"> if an I/O error occurs or this stream is already
/// closed </exception>
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public void flush() throws java.io.IOException
public override void Flush()
{
EnsureOpen();
// Finish decompressing and writing pending output data
if (!Inf.Finished())
{
try
{
while (!Inf.Finished() && !Inf.NeedsInput())
{
int n;
// Decompress pending output data
n = Inf.Inflate(Buf, 0, Buf.Length);
if (n < 1)
{
break;
}
// Write the uncompressed output data block
@out.Write(Buf, 0, n);
}
base.Flush();
}
catch (DataFormatException ex)
{
// Improperly formatted compressed (ZIP) data
String msg = ex.Message;
if (msg == null)
{
msg = "Invalid ZLIB data format";
}
throw new ZipException(msg);
}
}
}
