package org.foo.shell.commands;
import java.io.PrintStream;
import java.util.List;
import org.foo.shell.BasicCommand;
public class HistoryCommand extends BasicCommand {
private final History m_history;
public HistoryCommand(History history) {
m_history = history;
}
public void exec(String args, PrintStream out, PrintStream err) throws Exception {
List<String> history = m_history.get();
int count = (args != null) ? Integer.parseInt(args.trim()) : history.size();
if (count > history.size()) {
count = history.size();
}
for (int i = count; i > 0; i--) {
out.println(history.remove(history.size() - 1));
}
}
}