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#include "tao/Compression/zlib/ZlibCompressor_Factory.h"
#include "tao/Compression/zlib/ZlibCompressor.h"
#include "ace/Min_Max.h"
#include "zlib.h"
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
namespace TAO
{
Zlib_CompressorFactory::Zlib_CompressorFactory (void) :
::TAO::CompressorFactory (::Compression::COMPRESSORID_ZLIB)
{
}
::Compression::Compressor_ptr
Zlib_CompressorFactory::get_compressor (
::Compression::CompressionLevel compression_level)
{
// Ensure Compression range 0-9 and will also convert -1(default) to 9(max).
compression_level = ace_range( ::Compression::CompressionLevel(Z_NO_COMPRESSION), // Min value
::Compression::CompressionLevel(Z_BEST_COMPRESSION), // Max value
compression_level); // Argument value
::Compression::Compressor_ptr compressor = 0;
{ // Ensure scoped lock for compressor Map container
ACE_GUARD_RETURN( TAO_SYNCH_MUTEX, ace_mon, this->mutex_, 0 );
try {
// Try and locate the compressor (we may already have it)
ZlibCompressorMap::iterator it = this->compressors_.find(compression_level);
if (it == this->compressors_.end())
{ // Does not yet exist so create it
ACE_NEW_RETURN(compressor, ::TAO::ZlibCompressor(this, compression_level), 0);
it = this->compressors_.insert(ZlibCompressorMap::value_type(compression_level, compressor)).first;
}
compressor = (*it).second.in();
} catch (...) {
TAOLIB_ERROR_RETURN((LM_ERROR,
ACE_TEXT("(%P | %t) ERROR: ZlibCompressor - Unable to create Zlib Compressor at level [%d].\n"),
int(compression_level)),0);
}
} // End of scoped container locking
return ::Compression::Compressor::_duplicate(compressor);
}
}
TAO_END_VERSIONED_NAMESPACE_DECL
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