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package uk.ac.cam.cl.xeno.domctl;
public abstract class Command
{
public abstract int doCommand(Defaults d, String args[]);
public abstract String getName();
public abstract String getUsage();
public abstract String getHelpText();
public String getStringParameter(String args[], char key, String def)
{
String r = getParameter (args, key);
return (r == null) ? def : r;
}
public int getIntParameter(String args[], char key, int def)
{
String r = getParameter (args, key);
return (r == null) ? def : (Integer.parseInt (r));
}
public boolean getFlagParameter(String args[], char key)
{
String r = getParameter (args, key);
return (r == null) ? false : true;
}
public String getParameter (String args[], char key)
{
int i;
String result = null;
for (i = 0; i < args.length; i ++)
{
if (args[i].startsWith("-" + key))
{
if (args[i].length() > 2)
{
result = args[i].substring(2, args[i].length());
}
else
{
result = "";
}
}
}
return result;
}
public int reportXIError (String message, String cmd_array[])
{
int i;
System.err.print (message + " using: ");
for (i = 0; i < cmd_array.length; i ++) {
System.err.print (cmd_array[i] + " ");
}
System.err.println();
return -1;
}
public int reportError (String message)
{
System.err.println (message);
return -1;
}
public void reportCommand (String cmd_array[])
{
int i;
for (i = 0; i < cmd_array.length; i ++) {
System.out.print (cmd_array[i] + " ");
}
System.out.println();
}
}
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