Imported GNU Classpath 0.19 + gcj-import-20051115.
* sources.am: Regenerated.
* Makefile.in: Likewise.
* scripts/makemake.tcl: Use glob -nocomplain.
From-SVN: r107049
This commit is contained in:
Mark Wielaard
@@ -0,0 +1,224 @@
|
||||
/* CodeSet_sctx.java --
|
||||
Copyright (C) 2005 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of GNU Classpath.
|
||||
|
||||
GNU Classpath is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2, or (at your option)
|
||||
any later version.
|
||||
|
||||
GNU Classpath is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GNU Classpath; see the file COPYING. If not, write to the
|
||||
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
||||
02110-1301 USA.
|
||||
|
||||
Linking this library statically or dynamically with other modules is
|
||||
making a combined work based on this library. Thus, the terms and
|
||||
conditions of the GNU General Public License cover the whole
|
||||
combination.
|
||||
|
||||
As a special exception, the copyright holders of this library give you
|
||||
permission to link this library with independent modules to produce an
|
||||
executable, regardless of the license terms of these independent
|
||||
modules, and to copy and distribute the resulting executable under
|
||||
terms of your choice, provided that you also meet, for each linked
|
||||
independent module, the terms and conditions of the license of that
|
||||
module. An independent module is a module which is not derived from
|
||||
or based on this library. If you modify this library, you may extend
|
||||
this exception to your version of the library, but you are not
|
||||
obligated to do so. If you do not wish to do so, delete this
|
||||
exception statement from your version. */
|
||||
|
||||
|
||||
package gnu.CORBA.GIOP;
|
||||
|
||||
import gnu.CORBA.CDR.AbstractCdrInput;
|
||||
import gnu.CORBA.CDR.AbstractCdrOutput;
|
||||
import gnu.CORBA.IOR;
|
||||
import gnu.CORBA.IOR.CodeSets_profile;
|
||||
|
||||
import java.io.IOException;
|
||||
|
||||
/**
|
||||
* The code set service context. This context must be included in all
|
||||
* messages that use wide characters.
|
||||
*
|
||||
* @author Audrius Meskauskas (AudriusA@Bioinformatics.org)
|
||||
*/
|
||||
public class CodeSetServiceContext
|
||||
extends ServiceContext
|
||||
{
|
||||
/**
|
||||
* The context code sets id.
|
||||
*/
|
||||
public static final int ID = 1;
|
||||
|
||||
/**
|
||||
* The standard component to include in the messages.
|
||||
*/
|
||||
public static final CodeSetServiceContext STANDARD = new CodeSetServiceContext();
|
||||
|
||||
/**
|
||||
* The encoding, used to transfer the narrow (1 byte) character data.
|
||||
* The default value is taken from {@link CharSets_OSF#NATIVE_CHARACTER}.
|
||||
*/
|
||||
public int char_data = CharSets_OSF.NATIVE_CHARACTER;
|
||||
|
||||
/**
|
||||
* The encoding, used to transfer the wide character data.
|
||||
* The default value is taken from
|
||||
* {@link CharSets_OSF#NATIVE_WIDE_CHARACTER}.
|
||||
*/
|
||||
public int wide_char_data = CharSets_OSF.NATIVE_WIDE_CHARACTER;
|
||||
|
||||
/**
|
||||
* Find and return the code set service context in the give
|
||||
* contexts array. Returns {@link #STANDARD} if no code set
|
||||
* context is present.
|
||||
*
|
||||
* @param contexts the array of contexts, can be null.
|
||||
*/
|
||||
public static CodeSetServiceContext find(ServiceContext[] contexts)
|
||||
{
|
||||
if (contexts != null)
|
||||
for (int i = 0; i < contexts.length; i++)
|
||||
{
|
||||
if (contexts [ i ] instanceof CodeSetServiceContext)
|
||||
return (CodeSetServiceContext) contexts [ i ];
|
||||
}
|
||||
return STANDARD;
|
||||
}
|
||||
|
||||
/**
|
||||
* Select the suitable encoding that is defined in the provided profile.
|
||||
*
|
||||
* TODO character encoding. Now the encoding can be set, but it is ignored.
|
||||
* If you take this task, scan 'TODO character encoding' for
|
||||
* relevant places.
|
||||
*/
|
||||
public static CodeSetServiceContext negotiate(IOR.CodeSets_profile profile)
|
||||
{
|
||||
if (profile.negotiated != null)
|
||||
return profile.negotiated;
|
||||
|
||||
CodeSetServiceContext use = new CodeSetServiceContext();
|
||||
|
||||
use.char_data =
|
||||
negotiate(profile.narrow, STANDARD.char_data, CharSets_OSF.ISO8859_1);
|
||||
|
||||
use.wide_char_data =
|
||||
negotiate(profile.wide, STANDARD.wide_char_data, CharSets_OSF.UTF16);
|
||||
|
||||
profile.negotiated = use;
|
||||
|
||||
return use;
|
||||
}
|
||||
|
||||
/**
|
||||
* Read the context from the given stream. Does not read the
|
||||
* code sets id.
|
||||
*/
|
||||
public void readContext(AbstractCdrInput input)
|
||||
{
|
||||
AbstractCdrInput encap = input.read_encapsulation();
|
||||
|
||||
char_data = encap.read_ulong();
|
||||
wide_char_data = encap.read_ulong();
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a string representation.
|
||||
*/
|
||||
public String toString()
|
||||
{
|
||||
return " Encoding: narrow " + name(char_data) + ", wide " +
|
||||
name(wide_char_data) + ". ";
|
||||
}
|
||||
|
||||
/**
|
||||
* Write the context to the given stream, including the code
|
||||
* sets id.
|
||||
*/
|
||||
public void write(AbstractCdrOutput output)
|
||||
{
|
||||
output.write_ulong(ID);
|
||||
|
||||
AbstractCdrOutput enout = output.createEncapsulation();
|
||||
|
||||
enout.write_long(char_data);
|
||||
enout.write_ulong(wide_char_data);
|
||||
|
||||
try
|
||||
{
|
||||
enout.close();
|
||||
}
|
||||
catch (IOException ex)
|
||||
{
|
||||
InternalError t = new InternalError();
|
||||
t.initCause(ex);
|
||||
throw t;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Negotiate about the character encoding. Prefer our native encoding,
|
||||
* if no, prefer IORs native encoding, if no, find any encoding,
|
||||
* supported by both sides, if no, return the specified final decission.
|
||||
*
|
||||
* @param profile the component profile in IOR.
|
||||
* @param our_native our native encoding
|
||||
* @param final_decission the encoding that must be returned if no
|
||||
* compromise is found.
|
||||
*
|
||||
* @return the resulted encoding.
|
||||
*/
|
||||
protected static int negotiate(IOR.CodeSets_profile.CodeSet_component profile,
|
||||
int our_native, int final_decission
|
||||
)
|
||||
{
|
||||
// If our and IORs native sets match, use the native set.
|
||||
if (profile.native_set == our_native)
|
||||
return our_native;
|
||||
|
||||
// If the native sets do not match, but the IOR says it
|
||||
// supports our native set, use our native set.
|
||||
if (profile.conversion != null)
|
||||
for (int i = 0; i < profile.conversion.length; i++)
|
||||
{
|
||||
if (our_native == profile.conversion [ i ])
|
||||
return our_native;
|
||||
}
|
||||
|
||||
// At this point, we suggest to use the IORs native set.
|
||||
int[] allSupported = CharSets_OSF.getSupportedCharSets();
|
||||
|
||||
for (int s = 0; s < allSupported.length; s++)
|
||||
if (allSupported [ s ] == profile.native_set)
|
||||
return profile.native_set;
|
||||
|
||||
// Any compromise left?
|
||||
if (profile.conversion != null)
|
||||
for (int s = 0; s < allSupported.length; s++)
|
||||
for (int i = 0; i < profile.conversion.length; i++)
|
||||
if (allSupported [ s ] == profile.conversion [ i ])
|
||||
return allSupported [ s ];
|
||||
|
||||
// Return the CORBA default char encoding.
|
||||
return final_decission;
|
||||
}
|
||||
|
||||
/**
|
||||
* Conveniency method, used in toString()
|
||||
*/
|
||||
private String name(int set)
|
||||
{
|
||||
return "0x" + Integer.toHexString(set) + " (" + CharSets_OSF.getName(set) +
|
||||
") ";
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user