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1 package Map;
2
3
5 import Map.*;
6 import java.io.*;
7 import java.util.StringTokenizer  ;
8 import org.omg.CosNaming.*;
9
10
11 public class Client
12 {
13
14 static String [] stringToArray(String from, String separator)
15 {
16 if (from == null) {
17 return null;
18 }
19 if (separator == null) {
20 separator = " ";
21 }
22 StringTokenizer toks = new StringTokenizer (from, separator);
23 String [] result = new String [toks.countTokens()];
24 int i = 0;
25 while (toks.hasMoreTokens()) {
26 result[i++] = toks.nextToken().trim();
27 }
28 return result;
29 }
30
31 static void printUsage() {
32 System.out.println("USAGE INFORMATION");
33 System.out.println("createbase <label>");
34 System.out.println("createderived <label>");
35 System.out.println("connect <label>");
36 System.out.println("destroy <label>");
37 System.out.println("get <label>");
38 System.out.println("list <num copies of each>");
39 System.out.println("quit");
40 }
41
42 public static void main(String [] args)
43 {
44 try
45 {
46 org.omg.CORBA.ORB orb = org.omg.CORBA.ORB.init(args,null);
48
49 NamingContextExt nc =
50 NamingContextExtHelper.narrow(
51 orb.resolve_initial_references( "NameService" ));
52
53 org.omg.CORBA.Object o =
54 nc.resolve(nc.to_name("PointManager1.example"));
55
56 PointManager pointManager =
57 PointManagerHelper.narrow( o );
58
59 int x = 0;
60 int y = -1000;
61
62 BufferedReader reader =
63 new BufferedReader((new InputStreamReader(java.lang.System.in)));
64
65 boolean done = false;
66
67 java.lang.String lab = null;
68 while (!done)
69 {
70 System.out.print("Command-->");
71 try
72 {
73 java.lang.String input = reader.readLine();
74
75 if (input.equals("")) {
76 Client.printUsage();
77 continue;
78 }
79
80 java.lang.String [] tokens = Client.stringToArray(input, null);
81
82 if (tokens == null)
83 {
84 Client.printUsage();
85 continue;
86 }
87
88 lab = (tokens.length == 2) ? tokens[1] : null;
89
90 if (tokens[0].equals("createbase"))
91 {
92 Point point = pointManager.create_point(x++, y++, lab, false);
93 if (point != null)
94 {
95 point.print();
96 }
97 else
98 {
99 System.out.println("Point is [nil]");
100 }
101 }
102 else if (tokens[0].equals("createderived"))
103 {
104 Point point = pointManager.create_point(x++, y++, lab, true);
105 if (point != null)
106 {
107 point.print();
108 }
109 else
110 {
111 System.out.println("Point is [nil]");
112 }
113 }
114 else if (tokens[0].equals("connect"))
115 {
116 System.out.print("Connect " + lab + " to how many points? ");
117 java.lang.String name = reader.readLine();
118 int num = Integer.parseInt(name);
119 String [] connectTo = new String [num];
120 for (int i = 0; i < num; i++)
121 {
122 System.out.print("\tconnection #" + i + ": ");
123 connectTo[i] = reader.readLine();
124 }
125 pointManager.connect_point(lab, connectTo);
126 }
127 else if (tokens[0].equals("destroy"))
128 {
129 pointManager.destroy_point(lab);
130 }
131 else if (tokens[0].equals("get"))
132 {
133 Point point = pointManager.get_point(lab);
134 if (point != null)
135 {
136 point.print();
137 }
138 else
139 {
140 System.out.println("Point is [nil]");
141 }
142 }
143 else if (tokens[0].equals("list"))
144 {
145 Point[] points =
146 pointManager.list_points( Integer.parseInt(lab) );
147
148 for (int i = 0; i < points.length; i++)
149 {
150 if (points[i] != null)
151 {
152 points[i].print();
153 }
154 else
155 {
156 System.out.println("Point is [nil]");
157 }
158 }
159 }
160 else if (tokens[0].equals("quit"))
161 {
162 System.out.println("quit");
163 done = true;
164 }
165 else
166 {
167 Client.printUsage();
168 }
169 }
170 catch(InvalidPoint e) {
171 System.out.println("InvalidPoint exception caught");
172 Client.printUsage();
173 }
174 catch(java.io.IOException e) {
175 System.out.println(e);
176 }
177 catch(Exception e) {
178 e.printStackTrace();
179 System.out.println(e);
180 }
181 }
182 }
183 catch(Exception e) {
184 e.printStackTrace();
185 System.out.println(e);
186 }
187
188 }
189
190 }
191 |
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