summaryrefslogtreecommitdiff
path: root/TAO/tao/Strategies/DIOP_Connector.cpp
blob: 61011bc8bb7e14f7e3a6311d4db86b1614e3ef77 (plain)
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
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
// This may look like C, but it's really -*- C++ -*-
// $Id$

#include "tao/Strategies/DIOP_Connector.h"

#if defined (TAO_HAS_DIOP) && (TAO_HAS_DIOP != 0)

#include "ace/Connector.h"

#include "tao/debug.h"
#include "tao/ORB_Core.h"
#include "tao/SystemException.h"
#include "tao/Base_Transport_Property.h"
#include "tao/Protocols_Hooks.h"
#include "ace/OS_NS_strings.h"
#include "ace/OS_NS_string.h"

#include "tao/Strategies/DIOP_Profile.h"


ACE_RCSID (Strategies,
           DIOP_Connector,
           "$Id$")


TAO_BEGIN_VERSIONED_NAMESPACE_DECL

TAO_DIOP_Connector::TAO_DIOP_Connector (CORBA::Boolean flag)
  : TAO_Connector (TAO_TAG_DIOP_PROFILE),
    lite_flag_ (flag)
{
}

TAO_DIOP_Connector::~TAO_DIOP_Connector (void)
{
}

int
TAO_DIOP_Connector::open (TAO_ORB_Core *orb_core)
{
  this->orb_core (orb_core);

  // Create our connect strategy
  if (this->create_connect_strategy () == -1)
    return -1;

  // @@ Michael: We do not use regular connection management.

  return 0;
}

int
TAO_DIOP_Connector::close (void)
{
  // The list of service handlers cleans itself??
  SvcHandlerIterator iter (svc_handler_table_);

  while (!iter.done ())
    {
      (*iter).int_id_->remove_reference ();
      iter++;
    }

  // @@ Michael: We do not use regular connection management.
  return 0;
}

int
TAO_DIOP_Connector::set_validate_endpoint (TAO_Endpoint *endpoint)
{
  TAO_DIOP_Endpoint *diop_endpoint =
    this->remote_endpoint (endpoint);

  if (diop_endpoint == 0)
    return -1;

  const ACE_INET_Addr &remote_address =
    diop_endpoint->object_addr ();

  // Verify that the remote ACE_INET_Addr was initialized properly.
  // Failure can occur if hostname lookup failed when initializing the
  // remote ACE_INET_Addr.
  if (remote_address.get_type () != AF_INET)
    {
      if (TAO_debug_level > 0)
        {
          ACE_DEBUG ((LM_DEBUG,
                      ACE_TEXT ("TAO (%P|%t) DIOP connection failed.\n")
                      ACE_TEXT ("TAO (%P|%t) This is most likely ")
                      ACE_TEXT ("due to a hostname lookup ")
                      ACE_TEXT ("failure.\n")));
        }

      return -1;
    }

  return 0;
}

TAO_Transport *
TAO_DIOP_Connector::make_connection (TAO::Profile_Transport_Resolver *,
                                     TAO_Transport_Descriptor_Interface &desc,
                                     ACE_Time_Value * /*max_wait_time*/)
{
  TAO_DIOP_Endpoint *diop_endpoint =
    this->remote_endpoint (desc.endpoint ());

  if (diop_endpoint == 0)
    return 0;

  const ACE_INET_Addr &remote_address =
    diop_endpoint->object_addr ();

  TAO_DIOP_Connection_Handler *svc_handler = 0;

  if (svc_handler_table_.find (remote_address, svc_handler) == -1)
    {
      TAO_DIOP_Connection_Handler *svc_handler_i = 0;
      ACE_NEW_RETURN (svc_handler_i,
                      TAO_DIOP_Connection_Handler (this->orb_core (),
                                                   this->lite_flag_),
                      0);

      svc_handler_i->local_addr (ACE_sap_any_cast (ACE_INET_Addr &));
      svc_handler_i->addr (remote_address);

      svc_handler_i->open (0);

      svc_handler_table_.bind (remote_address,
                               svc_handler_i);
      svc_handler = svc_handler_i;

      if (TAO_debug_level > 2)
        ACE_DEBUG ((LM_DEBUG,
                    ACE_TEXT ("(%P|%t) DIOP_Connector::connect - ")
                    ACE_TEXT ("new connection on HANDLE %d\n"),
                    svc_handler->get_handle ()));
   }

  // @@ Michael: We do not use regular connection management.
  svc_handler->add_reference ();
  TAO_Transport *transport =
    svc_handler->transport ();

  return transport;
}

TAO_Profile *
TAO_DIOP_Connector::create_profile (TAO_InputCDR& cdr)
{
  TAO_Profile *pfile = 0;
  ACE_NEW_RETURN (pfile,
                  TAO_DIOP_Profile (this->orb_core ()),
                  0);

  int const r = pfile->decode (cdr);
  if (r == -1)
    {
      pfile->_decr_refcnt ();
      pfile = 0;
    }

  return pfile;
}

TAO_Profile *
TAO_DIOP_Connector::make_profile (void)
{
  // The endpoint should be of the form:
  //    N.n@host:port/object_key
  // or:
  //    host:port/object_key

  TAO_Profile *profile = 0;
  ACE_NEW_THROW_EX (profile,
                    TAO_DIOP_Profile (this->orb_core ()),
                    CORBA::NO_MEMORY (
                      CORBA::SystemException::_tao_minor_code (
                        TAO::VMCID,
                        ENOMEM),
                      CORBA::COMPLETED_NO));

  return profile;
}

int
TAO_DIOP_Connector::check_prefix (const char *endpoint)
{
  // Check for a valid string
  if (!endpoint || !*endpoint)
    return -1;  // Failure

  const char *protocol[] = { "diop", "dioploc" };

  size_t const slot = ACE_OS::strchr (endpoint, ':') - endpoint;

  size_t const len0 = ACE_OS::strlen (protocol[0]);
  size_t const len1 = ACE_OS::strlen (protocol[1]);

  // Check for the proper prefix in the IOR.  If the proper prefix
  // isn't in the IOR then it is not an IOR we can use.
  if (slot == len0
      && ACE_OS::strncasecmp (endpoint, protocol[0], len0) == 0)
    return 0;
  else if (slot == len1
           && ACE_OS::strncasecmp (endpoint, protocol[1], len1) == 0)
    return 0;

  return -1;
  // Failure: not an DIOP IOR
  // DO NOT throw an exception here.
}

char
TAO_DIOP_Connector::object_key_delimiter (void) const
{
  return TAO_DIOP_Profile::object_key_delimiter_;
}

TAO_DIOP_Endpoint *
TAO_DIOP_Connector::remote_endpoint (TAO_Endpoint *endpoint)
{
  if (endpoint->tag () != TAO_TAG_DIOP_PROFILE)
    return 0;

  TAO_DIOP_Endpoint *diop_endpoint =
    dynamic_cast<TAO_DIOP_Endpoint *> (endpoint );

  return diop_endpoint;
}

int
TAO_DIOP_Connector::cancel_svc_handler (
  TAO_Connection_Handler * /* svc_handler */)
{
  return 0;
}

TAO_END_VERSIONED_NAMESPACE_DECL

#endif /* TAO_HAS_DIOP && TAO_HAS_DIOP != 0 */