public boolean execute(ShellContext<MessageCounter> context) {
ShellServer<MessageCounter> shellServer = context.getShellServer();
MessageCounter msgCounter = context.getOpaqueData();
PrintStream out = context.getOutputStream();
msgCounter.stop();
if (shellServer != null) {
// interrupt all shell threads
shellServer.interruptAllInterruptible();
// interrupt shell server thread
shellServer.stopServSockThread();
}
out.print("halted." + Shell.CRLF);
out.flush();
return true;
}
public boolean execute(ShellContext<EmulatorContext> context) {
EmulatorContext cxt = context.getOpaqueData();
PrintStream out = context.getOutputStream();
String[] args = context.getArguments();
if (args.length < 2) {
out.println("Usage: " + this.getHelp());
if (context.isInteractive()) return false;
else return true;
}
// parse arguments
long startTime = 0L, interval = 0L;
int times = 1;
boolean timeIsDifferential = false;
StringTokenizer st = new StringTokenizer(args[0], ",");
String timeStr = st.nextToken();
if (timeStr.startsWith("+")) { // +<start time>
timeIsDifferential = true;
timeStr = timeStr.substring(1);
}
startTime = parseLong(timeStr);
try {
interval = parseLong(st.nextToken());
times = 0; // indicates endless repeat
times = Integer.parseInt(st.nextToken());
} catch (NoSuchElementException e) {
}
// parse the another command
Map<String, Command<EmulatorContext>> commandTable = context.getShellServer().getCommandTable();
Command<EmulatorContext> command = commandTable.get(args[1]);
if (command == null) {
out.println("No such command: " + args[1]);
if (context.isInteractive()) return false;
else return true;
}
SchedulableCommand<EmulatorContext> schedulableCommand = null;
try {
schedulableCommand = (SchedulableCommand<EmulatorContext>) command;
} catch (ClassCastException e) {
out.println("Command is not schedulable: " + args[1]);
if (context.isInteractive()) return false;
else return true;
}
// schedule
String[] taskArgs = new String[args.length - 2];
System.arraycopy(args, 2, taskArgs, 0, taskArgs.length);
context.setArguments(taskArgs);
EmulatorTask task = null;
try {
task = schedulableCommand.getEmulatorTask(context);
} catch (Exception e) {
out.println("An exception thrown during parsing command: " + args[1]);
if (context.isInteractive()) return false;
else return true;
}
this.schedule(cxt, startTime, interval, times, task, timeIsDifferential);
if (cxt.getEmulatorMode() != EmulatorMode.WORKER && cxt.getVerboseInParsing()) {
out.print("schedule: " + schedulableCommand.getNames()[0]);
for (int i = 0; i < taskArgs.length; i++) {
out.print(" " + taskArgs[i]);
}
out.println();
}
return false;
}
