1 /*
   2  * Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.corba.se.impl.naming.namingutil;
  27 
  28 import java.io.StringWriter;
  29 
  30 import org.omg.CORBA.DATA_CONVERSION;
  31 import org.omg.CORBA.CompletionStatus;
  32 
  33 import com.sun.corba.se.impl.logging.NamingSystemException;
  34 import com.sun.corba.se.spi.logging.CORBALogDomains;
  35 
  36 /**
  37  *  Utility methods for Naming.
  38  *
  39  *  @Author Hemanth
  40  */
  41 class Utility {
  42     private static NamingSystemException wrapper =
  43         NamingSystemException.get( CORBALogDomains.NAMING ) ;
  44 
  45     /**
  46      * cleanEscapes removes URL escapes as per IETF 2386 RFP.
  47      */
  48     static String cleanEscapes( String stringToDecode ) {
  49         StringWriter theStringWithoutEscape = new StringWriter();
  50         for( int i = 0; i < stringToDecode.length(); i++ ) {
  51             char c = stringToDecode.charAt( i ) ;
  52             if( c != '%' ) {
  53                 theStringWithoutEscape.write( c );
  54             } else {
  55                 // Get the two hexadecimal digits and convert that into int
  56                 i++;
  57                 int Hex1 = hexOf( stringToDecode.charAt(i) );
  58                 i++;
  59                 int Hex2 = hexOf( stringToDecode.charAt(i) );
  60                 int value = (Hex1 * 16) + Hex2;
  61                 // Convert the integer to ASCII
  62                 theStringWithoutEscape.write( (char) value );
  63             }
  64         }
  65         return theStringWithoutEscape.toString();
  66     }
  67 
  68     /**
  69      *  Converts an Ascii Character into Hexadecimal digit
  70      *  NOTE: THIS METHOD IS DUPLICATED TO DELIVER NAMING AS A SEPARATE
  71      *  COMPONENT TO RI.
  72      **/
  73     static int hexOf( char x )
  74     {
  75         int val;
  76 
  77         val = x - '0';
  78         if (val >=0 && val <= 9)
  79             return val;
  80 
  81         val = (x - 'a') + 10;
  82         if (val >= 10 && val <= 15)
  83             return val;
  84 
  85         val = (x - 'A') + 10;
  86         if (val >= 10 && val <= 15)
  87             return val;
  88 
  89         throw new DATA_CONVERSION( );
  90     }
  91 
  92     /**
  93      * If GIOP Version is not correct, This method throws a BAD_PARAM
  94      * Exception.
  95      **/
  96     static void validateGIOPVersion( IIOPEndpointInfo endpointInfo ) {
  97         if ((endpointInfo.getMajor() > NamingConstants.MAJORNUMBER_SUPPORTED) ||
  98             (endpointInfo.getMinor() > NamingConstants.MINORNUMBERMAX ) )
  99         {
 100             throw wrapper.insBadAddress() ;
 101         }
 102     }
 103 }