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package derms.client;
import java.net.MalformedURLException;
public class ResponderClientCLI extends CLI {
public static final String usage = "Usage: java derms.client.ResponderClientCLI <FE host>";
private final ResponderClient client;
private ResponderClientCLI(String FEhost) throws MalformedURLException {
client = new ResponderClient(FEhost);
commands.put("add", new Add());
cmdDescriptions.add(new Description(
"add <resource ID> <resource type> <duration>",
"Add ad resource to the server"));
commands.put("remove", new Remove());
cmdDescriptions.add(new Description(
"remove <resource ID> <duration>",
"Decrease the duration of a resource. If duration is negative, the resource is removed entirely."));
commands.put("list", new List());
cmdDescriptions.add(new Description(
"list <resource name>",
"List available resources"));
}
public static void main(String[] args) {
if (args.length < 1) {
System.err.println("Missing argument 'FE host'");
System.exit(1);
}
String FEhost = args[0];
try {
(new ResponderClientCLI(FEhost)).run();
} catch (MalformedURLException e) {
e.printStackTrace();
}
}
private class Add implements Command {
@Override
public void exec(String[] args) {
if (args.length < 3)
System.out.println("invalid arguments for 'add'");
else
add(args[0], args[1], args[2]);
}
private void add(String resourceID, String resourceName, String durationStr) {
try {
int duration = Integer.parseInt(durationStr);
if (duration < 0) {
throw new NumberFormatException("duration less than 0");
}
String response = client.addResource(resourceID, resourceName, duration);
System.out.println(response);
} catch (NumberFormatException e) {
System.out.println("invalid duration: " + durationStr);
}
}
}
private class Remove implements Command {
@Override
public void exec(String[] args) {
if (args.length < 2)
System.out.println("invalid arguments for 'remove'");
else
remove(args[0], args[1]);
}
private void remove(String resourceID, String durationStr) {
try {
int duration = Integer.parseInt(durationStr);
String response = client.removeResource(resourceID, duration);
System.out.println(response);
} catch (NumberFormatException e) {
System.out.println("invalid duration: " + durationStr);
}
}
}
private class List implements Command {
@Override
public void exec(String[] args) {
if (args.length < 1)
System.out.println("invalid arguments for 'list'");
else
list(args[0]);
}
private void list(String resourceName) {
String response = client.listResourceAvailability(resourceName);
System.out.println(response);
}
}
}
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