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1
24
25 package org.objectweb.dream.adl;
26
27 import java.util.HashMap  ;
28
29 import org.objectweb.fractal.adl.Factory;
30 import org.objectweb.fractal.api.Component;
31 import org.objectweb.fractal.api.NoSuchInterfaceException;
32 import org.objectweb.fractal.api.control.LifeCycleController;
33 import org.objectweb.fractal.util.Fractal;
34
35
43 public final class Launcher
44 {
45
46 private Launcher()
47 {
48 }
49
50
56 public static void main(final String [] args) throws Exception
57 {
58 String [] pargs = parseArgs(args);
59 Object comp = createComponent(pargs);
60
61 if (comp instanceof Component)
62 {
63 LifeCycleController lc = null;
64 try
65 {
66 lc = Fractal.getLifeCycleController((Component) comp);
67 }
68 catch (NoSuchInterfaceException ignored)
69 {
70 }
71 if (lc != null)
72 {
73 lc.startFc();
74 }
75 Runnable r = null;
76 try
77 {
78 r = (Runnable ) ((Component) comp).getFcInterface(pargs[2]);
79 }
80 catch (NoSuchInterfaceException ignored)
81 {
82 }
83 if (r != null)
84 {
85 r.run();
86 }
87 }
88 else
89 {
90 if (comp instanceof LifeCycleController)
91 {
92 ((LifeCycleController) comp).startFc();
93 }
94 if (comp instanceof Runnable )
95 {
96 ((Runnable ) comp).run();
97 }
98 }
99 }
100
101 private static Object createComponent(String [] pargs) throws Exception
102 {
103 Factory f = org.objectweb.fractal.adl.FactoryFactory.getFactory(pargs[0],
104 pargs[1], new HashMap ());
105 return f.newComponent(pargs[2], new HashMap ());
106 }
107
108 private static String [] parseArgs(final String [] args)
109 {
110 if (args.length < 1 || args.length > 4)
111 {
112 parseError();
113 }
114 String [] result = new String [4];
115 int i = 0;
116 if (args[i].startsWith("-factory="))
117 {
118 result[0] = args[i].substring(9);
119 i++;
120 }
121 else
122 {
123 result[0] = FactoryFactory.FACTORY_NAME;
124 }
125
126 if (args.length == i)
127 {
128 parseError();
129 }
130 if (args[i].startsWith("-backend="))
131 {
132 result[1] = args[i].substring(9);
133 i++;
134 }
135 else
136 {
137 result[1] = FactoryFactory.FRACTAL_BACKEND;
138 }
139
140 if (args.length == i)
141 {
142 parseError();
143 }
144 result[2] = args[i];
145
146 i++;
147 if (args.length == i)
148 {
149 result[3] = "run";
150 }
151 else
152 {
153 result[3] = args[i];
154 }
155 if (args.length > i + 1)
156 {
157 parseError();
158 }
159
160 return result;
161 }
162
163 private static void parseError()
164 {
165 System.out.print("Usage: Launcher [-factory=<factory def>|-backend=");
166 System.out.println("<backend def>] <definition> [ <itf> ]");
167 System.out.print("where <definition> is the name of the component to be ");
168 System.out.print("instantiated and started,\n <itf> is the name of ");
169 System.out.print("its Runnable interface, if it has one,\n ");
170 System.out.print("<factory def> is the name of the factory implementation");
171 System.out.print(" to be used (if not specified use Dream implementation)");
172 System.out.print(",\n <backend def> is the name of the backend ");
173 System.out.print("implementation to be used (if not specified use Fractal");
174 System.out.print(" implementation for Dream factory)");
175 System.exit(1);
176 }
177
178 } |
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