aboutsummaryrefslogtreecommitdiffstats
path: root/lib/orber/java_src/Orber/InitialReference.java
blob: 35a8c2437b07ece3213c268f2e2057a6e01a83c0 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
/*
 * %CopyrightBegin%
 * 
 * Copyright Ericsson AB 1997-2016. All Rights Reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 * %CopyrightEnd%
 *
 */
/**
 * InitialReference is a class which generates the INIT reference
 * which can be used by the InitialReferences interface.
 */
package Orber;

public class InitialReference 
{

  /**
   * Constructor.
   */
  public InitialReference(){;}

  /**
   * Returns the stringified objectreference to the initial reference server
   */
  public String stringified_ior(String host, int port)
    {
      String iorByteString;
      String profileData;
      String iorString;

      // byte_order followed by ' {"", [{0, ' 
      //      char iorBytesFirstPart[] = {0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0};
      char iorBytesFirstPart[] = {0,0,0,0,0,0,0,32,73,68,76,58,79,114,98,101,114,47,73,110,105,116,105,97,108,82,101,102,101,114,101,110,99,101,115,58,49,46,48,0,0,0,0,1,0,0,0,0};
      // the objectkey "INIT
      char iorBytesLastPart[] = {0,0,0,4,73,78,73,84};

      // Fix the ProfileData struct.
      char pdPrefix[] = {0,1,0,0};
      char nullbyte[] = {0};
      profileData = new String(pdPrefix) + enc_ulong(host.length() + 1) + host + new String(nullbyte);
      profileData = align(profileData, 2);
      profileData +=  enc_ushort(port);
      profileData = align(profileData, 4);
      profileData += new String(iorBytesLastPart);
      // Fix the whole IOR
      iorByteString = new String(iorBytesFirstPart) + enc_ulong(profileData.length()) +
	profileData;

      //      System.out.print("Start[" + profileData.length() + "]");
      //      System.out.print("[");
      //      for(int x = 0; x < iorByteString.length(); x++)
      //	{
      //	  System.out.print((int) iorByteString.charAt(x) + ",");
      //	}
      //      System.out.println("]");

      iorString = createIOR(iorByteString);
      //      System.out.println(iorString);
      return iorString;
    }


  private String enc_ushort(int s)
    {
      char byteArray[] = {(char) ((s >>> 8) & 0xFF),
			  (char) ((s >>> 0) & 0xFF)};

      return new String(byteArray);
    }

  private String enc_ulong(int l)
    {
      char byteArray[] = {(char) ((l >>> 24) & 0xFF),
			  (char) ((l >>> 16) & 0xFF),
			  (char) ((l >>> 8) & 0xFF),
			  (char) ((l >>> 0) & 0xFF)};

      return new String(byteArray);

    }

  private String createIOR(String bytes)
    {
      int i;
      StringBuffer sb = new StringBuffer("IOR:");

      for(i = 0; i < bytes.length(); i++)
	{
	  int b = bytes.charAt(i);
	  if(b<0) b+= 256;
	  int n1 = b / 16;
	  int n2 = b % 16;
	  int c1 = (n1 < 10) ? ('0' + n1) : ('a' + (n1 - 10));
	  int c2 = (n2 < 10) ? ('0' + n2) : ('a' + (n2 - 10));
	  sb.append((char)c1);
	  sb.append((char)c2);	  
	}

      return sb.toString();
    }

  private String align(String buffer, int alignment)
    {
      String s = buffer;
      char nullbyte[] = {0};

      int remainder = alignment - (buffer.length() % alignment);
      if (remainder == alignment) return s;

      for (int i = 0; i < remainder; i++)
	{
	  s += new String(nullbyte);
	}
      return s;
    }

  
}