Source for gnu.CORBA.NamingService.Ext

   1: /* TransientContextExt.java --
   2:    Copyright (C) 2005 Free Software Foundation, Inc.
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  37: 
  38: 
  39: package gnu.CORBA.NamingService;
  40: 
  41: import org.omg.CORBA.NO_IMPLEMENT;
  42: import org.omg.CORBA.Object;
  43: import org.omg.CORBA.portable.Delegate;
  44: import org.omg.CORBA.portable.ObjectImpl;
  45: import org.omg.CosNaming.BindingIteratorHolder;
  46: import org.omg.CosNaming.BindingListHolder;
  47: import org.omg.CosNaming.NameComponent;
  48: import org.omg.CosNaming.NamingContext;
  49: import org.omg.CosNaming.NamingContextPackage.AlreadyBound;
  50: import org.omg.CosNaming.NamingContextPackage.CannotProceed;
  51: import org.omg.CosNaming.NamingContextPackage.InvalidName;
  52: import org.omg.CosNaming.NamingContextPackage.NotEmpty;
  53: import org.omg.CosNaming.NamingContextPackage.NotFound;
  54: import org.omg.CosNaming._NamingContextExtImplBase;
  55: 
  56: /**
  57:  * This naming context that adds the the string based extensions,
  58:  * defined by {@link NamingContextExt}. The basic functionality
  59:  * is handled by the enclosed instance of the {@link NamingContext}.
  60:  *
  61:  * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
  62:  */
  63: public class Ext
  64:   extends _NamingContextExtImplBase
  65: {
  66:   /**
  67:    * The older version of the naming context, where all relevant calls
  68:    * are forwarded.
  69:    */
  70:   private final NamingContext classic;
  71: 
  72:   /**
  73:    * The converter class converts between string and array form of the
  74:    * name.
  75:    */
  76:   private NameTransformer converter = new NameTransformer();
  77: 
  78:   /**
  79:    * Create the extensions for the given instance of the context.
  80:    *
  81:    * @param previous_version the previous version of the naming context.
  82:    */
  83:   public Ext(NamingContext previous_version)
  84:   {
  85:     classic = previous_version;
  86:   }
  87: 
  88:   /**
  89:    * Sets a delegate to this context and, if appropriated, also
  90:    * sets the same delegate to the enclosing 'classic' context.
  91:    *
  92:    * @param a_delegate a delegate to set.
  93:    */
  94:   public void _set_delegate(Delegate a_delegate)
  95:   {
  96:     super._set_delegate(a_delegate);
  97:     if (classic instanceof ObjectImpl)
  98:       ((ObjectImpl) classic)._set_delegate(a_delegate);
  99:   }
 100: 
 101:   /** {@inheritDoc} */
 102:   public void bind(NameComponent[] a_name, Object an_object)
 103:             throws NotFound, CannotProceed, InvalidName, AlreadyBound
 104:   {
 105:     classic.bind(a_name, an_object);
 106:   }
 107: 
 108:   /** {@inheritDoc} */
 109:   public void bind_context(NameComponent[] a_name, NamingContext context)
 110:                     throws NotFound, CannotProceed, InvalidName, AlreadyBound
 111:   {
 112:     classic.bind_context(a_name, context);
 113:   }
 114: 
 115:   /** {@inheritDoc} */
 116:   public NamingContext bind_new_context(NameComponent[] a_name)
 117:                                  throws NotFound, AlreadyBound, CannotProceed,
 118:                                         InvalidName
 119:   {
 120:     return classic.bind_new_context(a_name);
 121:   }
 122: 
 123:   /** {@inheritDoc} */
 124:   public void destroy()
 125:                throws NotEmpty
 126:   {
 127:     classic.destroy();
 128:   }
 129: 
 130:   /** {@inheritDoc} */
 131:   public void list(int amount, BindingListHolder a_list,
 132:                    BindingIteratorHolder an_iter
 133:                   )
 134:   {
 135:     classic.list(amount, a_list, an_iter);
 136:   }
 137: 
 138:   /** {@inheritDoc} */
 139:   public NamingContext new_context()
 140:   {
 141:     return classic.new_context();
 142:   }
 143: 
 144:   /** {@inheritDoc} */
 145:   public void rebind(NameComponent[] a_name, Object an_object)
 146:               throws NotFound, CannotProceed, InvalidName
 147:   {
 148:     classic.rebind(a_name, an_object);
 149:   }
 150: 
 151:   /** {@inheritDoc} */
 152:   public void rebind_context(NameComponent[] a_name, NamingContext context)
 153:                       throws NotFound, CannotProceed, InvalidName
 154:   {
 155:     classic.rebind_context(a_name, context);
 156:   }
 157: 
 158:   /** {@inheritDoc} */
 159:   public Object resolve(NameComponent[] a_name)
 160:                  throws NotFound, CannotProceed, InvalidName
 161:   {
 162:     return classic.resolve(a_name);
 163:   }
 164: 
 165:   /**
 166:    * Resolves the name, represented in the form of the string. The name
 167:    * is first parsed into an array representation, then the call
 168:    * is forwarded to the {@link resolve(NameComponent[])}.
 169:    *
 170:    * @param a_name_string a name to resolve.
 171:    *
 172:    * @return the resolved object.
 173:    *
 174:    * @throws NotFound if the name cannot be resolved.
 175:    * @throws InvalidName if the name is invalid.
 176:    * @throws CannotProceed on unexpected circumstances.
 177:    */
 178:   public Object resolve_str(String a_name_string)
 179:                      throws NotFound, CannotProceed, InvalidName
 180:   {
 181:     return resolve(to_name(a_name_string));
 182:   }
 183: 
 184:   /**
 185:    * Convert the name string representation into array representation.
 186:    *
 187:    * @param a_name_string a string to convert.
 188:    * @return a converted array of the name components
 189:    *
 190:    * @throws InvalidName on parsing error.
 191:    */
 192:   public NameComponent[] to_name(String a_name_string)
 193:                           throws InvalidName
 194:   {
 195:     return converter.toName(a_name_string);
 196:   }
 197: 
 198:   /**
 199:    * Convert a name component array representation into string representation.
 200:    *
 201:    * @param a_name a name to convert.
 202:    *
 203:    * @return a string form.
 204:    *
 205:    * @throws InvalidName if the passed name is invalid.
 206:    */
 207:   public String to_string(NameComponent[] a_name)
 208:                    throws InvalidName
 209:   {
 210:     return converter.toString(a_name);
 211:   }
 212: 
 213:   /**
 214:    * This method is not yet implemented.
 215:    * FIXME TODO implement it.
 216:    */
 217:   public String to_url(String an_address, String a_name_string)
 218:                 throws org.omg.CosNaming.NamingContextExtPackage.InvalidAddress,
 219:                        InvalidName
 220:   {
 221:     throw new NO_IMPLEMENT("Method to_url() not yet implemented.");
 222:   }
 223: 
 224:   /** {@inheritDoc} */
 225:   public void unbind(NameComponent[] a_name)
 226:               throws NotFound, CannotProceed, InvalidName
 227:   {
 228:     classic.unbind(a_name);
 229:   }
 230: }