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package main;
import java.io.IOException;
import java.util.Arrays;
import java.util.Scanner;
import mining.TwitterApi;
import org.json.JSONException;
import org.json.JSONObject;
/**
* Class for manually testing the Twitter API.
*/
public class Main {
/**
* Command and parameters without options.
*/
private Command command;
private String[] params;
/**
* Whether to use the Bearer method or OAuth-signed requests.
*/
private boolean useBearer = true;
private TwitterApi api_cached;
public Main(String[] args) throws IOException {
// parse options and command and return the parameters.
parseGlobalOptions(args);
}
private TwitterApi getApi() throws IOException {
if (api_cached == null) {
if (useBearer) {
api_cached = TwitterApi.getAppOnly();
} else {
api_cached = TwitterApi.getOAuth(new ConsolePinSupplier());
}
}
return api_cached;
}
private String getParam(int index, String name) {
if (index >= params.length) {
System.err.println("Missing parameter: " + name);
System.exit(1);
}
return params[index];
}
private void parseGlobalOptions(String[] args) {
int firstParam = -1;
/* parse global options */
for (int i = 0; i < args.length; i++) {
if ("--oauth".equals(args[i])) {
useBearer = false;
} else if (args[i].startsWith("-")) {
throw new IllegalArgumentException("Invalid option: " + args[i]);
} else {
/* not an option, must be a command */
command = Command.fromString(args[i]);
firstParam = i + 1;
break;
}
}
if (firstParam == -1) {
throw new IllegalArgumentException("Missing command, use \"help\"");
}
params = Arrays.copyOfRange(args, firstParam, args.length);
}
public static void main(String[] args) throws IOException {
try {
Main main = new Main(args);
main.execute();
} catch (IllegalArgumentException ex) {
System.err.println(ex.getMessage());
System.exit(1);
}
}
enum Command {
user,
help;
public static Command fromString(String command) {
for (Command cmd : values()) {
if (cmd.name().equals(command)) {
return cmd;
}
}
throw new IllegalArgumentException("Unrecognized command ");
}
};
private final static String[] HELP = {
"Global options:",
" --oauth Use OAuth (PIN) instead of Bearer tokens",
"",
"Available commands:"
};
public void execute() throws IOException {
TwitterApi.Builder req = null;
/* build a request for commands */
switch (command) {
case user:
req = getApi().build("users/show");
req.param("screen_name", getParam(0, "screen name"));
break;
case help:
for (String line : HELP) {
System.out.println(line);
}
for (Command cmd : Command.values()) {
System.out.println(" " + cmd.name());
}
break;
default:
throw new AssertionError(command.name());
}
if (req != null) {
System.err.println("Executing: " + req.toString());
JSONObject result = req.request();
try {
System.out.println(result.toString(4));
} catch (JSONException ex) {
/* cannot happen */
System.err.println("Warning: got JSON exception: " + ex);
System.out.println(result);
}
}
}
private static class ConsolePinSupplier implements TwitterApi.PinSupplier {
private final Scanner scanner;
public ConsolePinSupplier() {
scanner = new Scanner(System.in);
}
@Override
public String requestPin(String url) throws IOException {
System.out.println(url);
System.err.println("Please open the above URL and enter PIN:");
return scanner.nextLine();
}
}
}
/**
* OLD main
* public static void main(String[] args) throws IOException {
* TwitterApi api = TwitterApi.getAppOnly();
// create the object that queues and executes the commands.
CommandQueue queue = new CommandQueue();
// create the object that parses the arguments.
CommandParser parser = new CommandParser(queue, api);
// parse the input arguments and create the command.
parser.parse(args);
Scanner input = new Scanner(System.in);
// parse the receiving data through the input
while (true) {
queue.executeAll();
// parse new input.
parser.parse(scanner.nextLine());
}
*/
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