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
|
// **********************************************************************
//
// Copyright (c) 2002
// Mutable Realms, Inc.
// Huntsville, AL, USA
//
// All Rights Reserved
//
// **********************************************************************
#include <Ice/PluginManagerI.h>
#include <Ice/DynamicLibrary.h>
#include <Ice/Properties.h>
#include <Ice/Instance.h>
#include <Ice/LoggerUtil.h>
#include <Ice/Initialize.h>
#include <Ice/LocalException.h>
using namespace std;
using namespace Ice;
using namespace IceInternal;
typedef Ice::Plugin* (*PLUGIN_FACTORY)(const CommunicatorPtr&, const string&, const StringSeq&);
Ice::PluginManagerI::PluginManagerI(const InstancePtr& instance)
: _instance(instance)
{
}
PluginPtr
Ice::PluginManagerI::getPlugin(const string& name)
{
IceUtil::Mutex::Lock sync(*this);
map<string, PluginInfo>::const_iterator r = _plugins.find(name);
if(r != _plugins.end())
{
return (*r).second.plugin;
}
throw PluginNotFoundException(__FILE__, __LINE__);
}
void
Ice::PluginManagerI::addPlugin(const string& name, const PluginPtr& plugin)
{
IceUtil::Mutex::Lock sync(*this);
map<string, PluginInfo>::const_iterator r = _plugins.find(name);
if(r != _plugins.end())
{
throw PluginExistsException(__FILE__, __LINE__);
}
PluginInfo info;
info.plugin = plugin;
_plugins[name] = info;
}
void
Ice::PluginManagerI::destroy()
{
IceUtil::Mutex::Lock sync(*this);
map<string, PluginInfo>::iterator r;
for(r = _plugins.begin(); r != _plugins.end(); ++r)
{
(*r).second.plugin->destroy();
(*r).second.plugin = 0;
(*r).second.library = 0;
}
}
void
Ice::PluginManagerI::loadPlugins(int& argc, char* argv[])
{
StringSeq cmdArgs = argsToStringSeq(argc, argv);
//
// Load and initialize the plug-ins defined in the property set
// with the prefix "Ice.Plugin.". These properties should
// have the following format:
//
// Ice.Plugin.name=entry_point [args]
//
const string prefix = "Ice.Plugin.";
PropertiesPtr properties = _instance->properties();
PropertyDict plugins = properties->getPropertiesForPrefix(prefix);
PropertyDict::const_iterator p;
for(p = plugins.begin(); p != plugins.end(); ++p)
{
string name = p->first.substr(prefix.size());
const string& value = p->second;
//
// Separate the entry point from the arguments.
//
string entryPoint;
StringSeq args;
string::size_type pos = value.find_first_of(" \t\n");
if(pos == string::npos)
{
entryPoint = value;
}
else
{
entryPoint = value.substr(0, pos);
string::size_type beg = value.find_first_not_of(" \t\n", pos);
while(beg != string::npos)
{
string::size_type end = value.find_first_of(" \t\n", beg);
if(end == string::npos)
{
args.push_back(value.substr(beg));
beg = end;
}
else
{
args.push_back(value.substr(beg, end - beg));
beg = value.find_first_not_of(" \t\n", end);
}
}
}
//
// Convert command-line options into properties. First we
// convert the options from the plug-in configuration, then
// we convert the options from the application command-line.
//
args = properties->parseCommandLineOptions(name, args);
cmdArgs = properties->parseCommandLineOptions(name, cmdArgs);
loadPlugin(name, entryPoint, args);
}
stringSeqToArgs(cmdArgs, argc, argv);
}
void
Ice::PluginManagerI::loadPlugin(const string& name, const string& entryPoint, const StringSeq& args)
{
//
// Load the entry point symbol.
//
PluginInfo info;
info.library = new DynamicLibrary();
DynamicLibrary::symbol_type sym = info.library->loadEntryPoint(entryPoint);
if(sym == 0)
{
ostringstream out;
string msg = info.library->getErrorMessage();
out << "unable to load entry point `" << entryPoint << "'";
if(!msg.empty())
{
out << ": " + msg;
}
PluginInitializationException ex(__FILE__, __LINE__);
ex.reason = out.str();
throw ex;
}
//
// Invoke the factory function.
//
PLUGIN_FACTORY factory = (PLUGIN_FACTORY)sym;
try
{
info.plugin = factory(_instance->communicator(), name, args);
}
catch(const Exception& ex)
{
//
// Do NOT propagate the exception from the entry point,
// because the library will be closed.
//
ostringstream out;
out << "exception in entry point `" << entryPoint << "'\n"
<< "original exception:\n"
<< ex;
PluginInitializationException e(__FILE__, __LINE__);
e.reason = out.str();
throw e;
}
catch (...)
{
//
// Do NOT propagate the exception from the entry point,
// because the library will be closed.
//
ostringstream out;
out << "unknown exception in entry point `" << entryPoint << "'\n";
PluginInitializationException e(__FILE__, __LINE__);
e.reason = out.str();
throw e;
}
_plugins[name] = info;
}
|
