/*
* Copyright (c) 2000, 2003, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*
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*
*/
package com.sun.corba.se.impl.interceptors;
import org.omg.IOP.Codec;
import org.omg.IOP.CodecFactory;
import org.omg.IOP.CodecFactoryPackage.UnknownEncoding;
import org.omg.IOP.Encoding;
import org.omg.IOP.ENCODING_CDR_ENCAPS;
import com.sun.corba.se.spi.logging.CORBALogDomains;
import com.sun.corba.se.impl.logging.ORBUtilSystemException;
import org.omg.CORBA.ORB;
import org.omg.CORBA.LocalObject;
/**
* CodecFactoryImpl is the implementation of the Codec Factory, as described
* in orbos/99-12-02.
*/
public final class CodecFactoryImpl
extends org.omg.CORBA.LocalObject
implements CodecFactory
{
// The ORB that created this Codec Factory
private ORB orb;
private ORBUtilSystemException wrapper ;
// The maximum minor version of GIOP supported by this codec factory.
// Currently, this is 1.2.
private static final int MAX_MINOR_VERSION_SUPPORTED = 2;
// The pre-created minor versions of Codec version 1.0, 1.1, ...,
// 1.(MAX_MINOR_VERSION_SUPPORTED)
private Codec codecs[] = new Codec[MAX_MINOR_VERSION_SUPPORTED + 1];
/**
* Creates a new CodecFactory implementation. Stores the ORB that
* created this factory, for later use by the Codec.
*/
public CodecFactoryImpl( ORB orb ) {
this.orb = orb;
wrapper = ORBUtilSystemException.get(
(com.sun.corba.se.spi.orb.ORB)orb,
CORBALogDomains.RPC_PROTOCOL ) ;
// Precreate a codec for version 1.0 through
// 1.(MAX_MINOR_VERSION_SUPPORTED). This can be
// done since Codecs are immutable in their current implementation.
// This is an optimization that eliminates the overhead of creating
// a new Codec each time create_codec is called.
for( int minor = 0; minor <= MAX_MINOR_VERSION_SUPPORTED; minor++ ) {
codecs[minor] = new CDREncapsCodec( orb, 1, minor );
}
}
/**
* Creates a codec of the given encoding. The only format recognized
* by this factory is ENCODING_CDR_ENCAPS, versions 1.0 through
* 1.(MAX_MINOR_VERSION_SUPPORTED).
*
* @exception UnknownEncoding Thrown if this factory cannot create a
* Codec of the given encoding.
*/
public Codec create_codec ( Encoding enc )
throws UnknownEncoding
{
if( enc == null ) nullParam();
Codec result = null;
// This is the only format we can currently create codecs for:
if( (enc.format == ENCODING_CDR_ENCAPS.value) &&
(enc.major_version == 1) )
{
if( (enc.minor_version >= 0) &&
(enc.minor_version <= MAX_MINOR_VERSION_SUPPORTED) )
{
result = codecs[enc.minor_version];
}
}
if( result == null ) {
throw new UnknownEncoding();
}
return result;
}
/**
* Called when an invalid null parameter was passed. Throws a
* BAD_PARAM with a minor code of 1
*/
private void nullParam()
{
throw wrapper.nullParam() ;
}
}