1 package net.sf.tomp.xtcl.command;
2
3 import net.sf.tomp.xtcl.Context;
4
5 import java.io.PrintStream;
6
7 /***
8 * DOCUMENT ME!
9 *
10 * @author tomp
11 */
12 public class SetCommand extends VarCommand {
13 /*** DOCUMENT ME! */
14 protected String srcVar;
15
16 /***
17 * DOCUMENT ME!
18 *
19 * @param r DOCUMENT ME!
20 */
21 public void setSrcVar(String r) {
22 srcVar = r;
23 }
24
25 /***
26 * DOCUMENT ME!
27 *
28 * @param context DOCUMENT ME!
29 * @return DOCUMENT ME!
30 * @throws Exception DOCUMENT ME!
31 */
32 public int execute(Context context) throws Exception {
33 Object src = context.get(srcVar);
34
35 context.put(var, src);
36
37 PrintStream out = context.getOut();
38
39 if (out != null) {
40 out.print(((src == null) ? "ERR " : "OK ") + this);
41 }
42
43 return 0;
44 }
45
46 /***
47 * DOCUMENT ME!
48 *
49 * @return DOCUMENT ME!
50 */
51 public String toString() {
52 return "SET " + var + "=" + srcVar;
53 }
54 }
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