Utility.java revision 672:2bb058ce572e 
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
26package com.sun.corba.se.impl.naming.namingutil;
27
28import java.io.StringWriter;
29
30import org.omg.CORBA.DATA_CONVERSION;
31import org.omg.CORBA.CompletionStatus;
32
33import com.sun.corba.se.impl.logging.NamingSystemException;
34import com.sun.corba.se.spi.logging.CORBALogDomains;
35
36/**
37 *  Utility methods for Naming.
38 *
39 *  @author Hemanth
40 */
41class 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}
104