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Commit 9b4f0fdc authored by Christopher Bohn's avatar Christopher Bohn :thinking:
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Replaced all input/output strings with i18n resource bundle. 

Closes #6
parent 33f767b8
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src/main/java/edu/unl/cse/csce361/socket_chat/Chat.java
+ 44
− 23
View file @ 9b4f0fdc
......@@ -22,7 +22,9 @@ public class Chat {
socket = connect(new Scanner(System.in));
}
// THESE METHODS SET UP AND TEAR DOWN CONNECTION
/*
* THESE METHODS SET UP AND TEAR DOWN CONNECTION
*/
@SuppressWarnings("WeakerAccess")
public Socket connect(Scanner userInput) {
......@@ -95,7 +97,7 @@ public class Chat {
} catch (ConnectException ignored) {
// "Attempt ...: Chat server is not yet ready at ..."
System.out.println(MessageFormat.format(
bundle.getString("connection.error.hostNotReady.attempt.1.2.3.4.port"),
bundle.getString("connection.error.hostNotReady.0.1.2.3.4.5"),
attemptCount, address[0], address[1], address[2], address[3], port));
if (attemptCount < MAXIMUM_CONNECTION_ATTEMPTS) {
// "Will attempt to connect again in ... seconds."
......@@ -117,8 +119,8 @@ public class Chat {
boolean haveGoodAddress = false;
byte[] address = new byte[4];
while (!haveGoodAddress) {
System.out.print("Enter IP address of host <##.##.##.##>: ");
haveGoodAddress = true;
// "Enter IP address of host <##.##.##.##>:"
System.out.print(bundle.getString("connection.prompt.getHostAddress") + " ");
try {
String addressString = userInput.nextLine();
String[] tokens = addressString.split("\\.");
......@@ -126,20 +128,25 @@ public class Chat {
for (int i = 0; i < 4; i++) {
address[i] = Byte.parseByte(tokens[i]);
}
haveGoodAddress = true;
} else {
System.out.println("The IP address should be four dot-separated numbers; <"
+ addressString + "> does not conform.");
// "The IP address should be four dot-separated numbers; ... does not conform."
System.out.println(MessageFormat.format(bundle.getString("connection.error.malformedAddress"),
addressString));
haveGoodAddress = false;
}
} catch (NumberFormatException nfException) {
System.out.println("The IP address should be exactly as reported to the host user.");
// "The IP address should be exactly as reported to the host user."
System.out.println(bundle.getString("connection.error.badNumberInAddress"));
String message = nfException.getMessage();
if (message.startsWith("Value out of range. Value")) {
// "Value out of range. Value"
if (message.startsWith(bundle.getString("exception.numberFormat.startOfValueOutOfRangeMessage"))) {
String[] messageTokens = message.split("\"");
long value = Long.parseLong(messageTokens[1]); // this may break if message format changes
if ((127 < value) && (value < 256)) {
System.out.println("Note that Java does not have unsigned integers, so subtract 256 from " +
"values greater than 127. For example, " + value + " should be " + (value - 256) + ".");
// "Note that Java does not have unsigned integers, so subtract 256 from values greater than..."
System.out.println(MessageFormat.format(bundle.getString(
"connection.error.userAttemptedUnsignedByte.0.1"), value, value - 256));
}
}
haveGoodAddress = false;
......@@ -153,15 +160,22 @@ public class Chat {
int port = 0;
while (!haveGoodNumber) {
System.out.print(prompt + ": ");
haveGoodNumber = true;
try {
port = userInput.nextInt();
if (port <= 0) throw new InputMismatchException("Expected positive value, got " + port);
if (port <= 0) {
// "Expected positive value, got ..."
throw new InputMismatchException(MessageFormat.format(
bundle.getString("connection.error.portNumberTooLow"), port));
}
if (port >= 2 * (Short.MAX_VALUE + 1)) {
throw new InputMismatchException("Expected value less than 65536, got " + port);
// "Expected value less than 65536, got ..."
throw new InputMismatchException(MessageFormat.format(
bundle.getString("connection.error.portNumberTooHigh"), port));
}
haveGoodNumber = true;
} catch (InputMismatchException ignored) {
System.out.println("The port number must be a positive integer strictly less than 65536.");
// "The port number must be a positive integer strictly less than 65536."
System.out.println(bundle.getString("connection.error.badPortNumber"));
haveGoodNumber = false;
} finally {
userInput.nextLine();
......@@ -170,7 +184,9 @@ public class Chat {
return port;
}
// THESE METHODS PERFORM CHAT AFTER CONNECTION IS SET UP
/*
* THESE METHODS PERFORM CHAT AFTER CONNECTION IS SET UP
*/
@SuppressWarnings("WeakerAccess")
public void communicate() {
......@@ -181,8 +197,10 @@ public class Chat {
System.out,
new PrintStream(socket.getOutputStream()));
} catch (IOException ioException) {
System.err.println("Failed to set up input/output streams: " + ioException);
System.err.println("Terminating."); // I'm pretty sure this is recoverable if the client is waiting on the server
// "Failed to set up input/output streams: ..."
// "Terminating."
System.err.println(bundle.getString("communicate.error.cannotSetUpStreams") + ": " + ioException);
System.err.println(bundle.getString("communicate.info.terminating"));
System.exit(1);
}
}
......@@ -192,11 +210,12 @@ public class Chat {
BufferedReader remoteInput,
PrintStream localOutput,
PrintStream remoteOutput) {
System.out.println("Connection established. Host goes first.");
// "Connection established. Host goes first."
System.out.println(bundle.getString("connection.info.ready"));
String message = "";
boolean myTurnToTalk = isHost;
try {
while (!message.equals("EXIT")) {
while (!message.equals(bundle.getString("communicate.keyword.exit"))) {
try {
if (myTurnToTalk) {
message = localInput.readLine();
......@@ -207,13 +226,15 @@ public class Chat {
message = decipher(encipheredMessage);
localOutput.println(message);
} else {
localOutput.println("Received null message: lost connection to remote chatter. Terminating.");
message = "EXIT";
// "Received null message: lost connection to remote chatter. Terminating."
localOutput.println(bundle.getString("communicate.error.nullMessageFromRemote"));
message = bundle.getString("communicate.keyword.exit");
}
}
} catch (SocketException ignored) {
localOutput.println("Unable to exchange message: lost connection to remote chatter. Terminating.");
message = "EXIT";
// "Unable to exchange message: lost connection to remote chatter. Terminating."
localOutput.println(bundle.getString("communicate.error.cannotSendMessage"));
message = bundle.getString("communicate.keyword.exit");
}
myTurnToTalk = !myTurnToTalk;
}
......
src/main/resources/socketchat_en.properties
+ 20
− 2
View file @ 9b4f0fdc
communicate.error.cannotSendMessage = Unable to exchange message: lost connection to remote chatter. Terminating.
communicate.error.cannotSetUpStreams = Failed to set up input/output streams
communicate.error.nullMessageFromRemote = Received null message: lost connection to remote chatter. Terminating.
communicate.info.terminating = Terminating.
communicate.keyword.exit = EXIT
connection.error.badNumberInAddress = The IP address should be exactly as reported to the host user.
connection.error.badPortNumber = The port number must be a positive integer strictly less than 65536.
connection.error.closingError = "Error while closing socket"
connection.error.generalConnectionFailure = Connection failed
connection.error.hostNotReady.attempt.1.2.3.4.port = Attempt {0}: Chat server is not yet ready at {1}.{2}.{3}.{4}:{5}
connection.error.hostNotReady.0.1.2.3.4.5 = Attempt {0}: Chat server is not yet ready at {1}.{2}.{3}.{4}:{5}
connection.error.malformedAddress = The IP address should be four dot-separated numbers; <{0}> does not conform.
connection.error.portInUse.0 = Port {0} is already in use.
connection.error.portNumberTooHigh = Expected value less than 65536, got {0}
connection.error.portNumberTooLow = Expected positive value, got {0}
connection.error.userAttemptedUnsignedByte.0.1 = Note that Java does not have unsigned integers, so subtract 256 from values greater than 127. For example, {0} should be {1}.
connection.error.tooManyAttempts = Exceeded maximum number of connection attempts. Terminating.
connection.info.hostAddress.0.1.2.3 = Host address: {0}.{1}.{2}.{3}
connection.info.ready = Connection established. Host goes first.
connection.info.reAttempt = Will attempt to connect again in {0} seconds.
connection.info.waiting = Waiting for client.
connection.prompt.getHostAddress = Enter IP address of host <##.##.##.##>:
connection.prompt.getHostPort.0.1.2.3 = Enter port host is opening at {0}.{1}.{2}.{3}
connection.prompt.isHost = Are you the chat host?
connection.prompt.selectPortNumber = Select port number
connection.response.yes = Y
connection.response.no = N
exception.numberFormat.startOfValueOutOfRangeMessage= Value out of range. Value
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