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1
23
24 package org.objectweb.fractal.adl;
25
26 import java.util.HashMap  ;
27 import java.util.Map ;
28
29 import org.objectweb.fractal.api.Component;
30 import org.objectweb.fractal.api.NoSuchInterfaceException;
31 import org.objectweb.fractal.api.control.LifeCycleController;
32
33 import org.objectweb.fractal.util.Fractal;
34
35
43
44 public class Launcher {
45
46 private Launcher () {
47 }
48
49 public static void main (final String [] args) throws Exception {
50 String [] pargs = parseArgs(args);
51 Object comp = createComponent(pargs);
52
53 if (comp instanceof Component) {
54 LifeCycleController lc = null;
55 try {
56 lc = Fractal.getLifeCycleController((Component)comp);
57 } catch (NoSuchInterfaceException ignored) {
58 }
59 if (lc != null) {
60 lc.startFc();
61 }
62 Runnable r = null;
63 try {
64 r = (Runnable )((Component)comp).getFcInterface(pargs[2]);
65 } catch (NoSuchInterfaceException ignored) {
66 }
67 if (r != null) {
68 r.run();
69 }
70 } else {
71 if (comp instanceof LifeCycleController) {
72 ((LifeCycleController)comp).startFc();
73 }
74 if (comp instanceof Runnable ) {
75 ((Runnable )comp).run();
76 }
77 }
78 }
79
80 private static Object createComponent (String [] pargs) throws Exception {
81 if (pargs[0].equals("-java")) {
82 Factory f = FactoryFactory.getFactory(FactoryFactory.JAVA_BACKEND);
83 return ((Map )f.newComponent(pargs[1], new HashMap ())).get(pargs[2]);
84 } else {
85 Factory f = FactoryFactory.getFactory(FactoryFactory.FRACTAL_BACKEND);
86 return f.newComponent(pargs[1], new HashMap ());
87 }
88 }
89
90 private static String [] parseArgs (final String [] args) {
91 if (args.length < 1 || args.length > 3) {
92 parseError();
93 }
94 String [] result = new String [3];
95 if (args[0].equals("-java") || args[0].equals("-fractal")) {
96 if (args.length < 2) {
97 parseError();
98 }
99 result[0] = args[0];
100 result[1] = args[1];
101 result[2] = args.length == 3 ? args[2] : "run";
102 } else {
103 result[0] = "-java";
104 result[1] = args[0];
105 result[2] = args.length >= 2 ? args[1] : "run";
106 }
107 return result;
108 }
109
110 private static void parseError () {
111 System.out.println("Usage: Launcher [-java|-fractal] <definition> [ <itf> ]");
112 System.out.print("where <definition> is the name of the component to be ");
113 System.out.print("instantiated and started,\nand <itf> is the name of ");
114 System.out.println("its Runnable interface, if it has one");
115 System.exit(1);
116 }
117 }
118 |
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