emmanuel/gclc-core
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Factor prompting methods code

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Signed-off-by: Emmanuel Bigeon <emmanuel@bigeon.fr>
This commit is contained in:
Emmanuel Bigeon 2018-12-03 11:12:13 -05:00
parent 0cef23e17b
commit 8436e8926c
1 changed files with 33 additions and 43 deletions
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76
gclc-process/src/main/java/net/bigeon/gclc/process/io/ConnectingConsoleInput.java
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@ -193,39 +193,7 @@ public final class ConnectingConsoleInput implements ConsoleInput {
synchronized (promptLock) {
prompting = true;
}
while (true) {
if (!checkPrompt()) {
return null;
}
getConnection(0);
boolean connect;
ConsoleInput actualConnected;
synchronized (connectionLock) {
connect = connected != null;
actualConnected = connected;
}
if (!connect) {
continue;
}
try {
final String res = actualConnected.prompt(message);
synchronized (promptLock) {
if (prompting) {
prompting = false;
return res;
}
}
} catch (final InterruptedIOException e) {
// The inner console was interrupted. This can mean we are
// disconnecting or actually interrupted.
if (disconnection) {
disconnection = false;
} else {
interrupting = false;
throw e;
}
}
}
return doPrompt(message, 0, 0);
}
/* (non-Javadoc)
@ -238,12 +206,17 @@ public final class ConnectingConsoleInput implements ConsoleInput {
synchronized (promptLock) {
prompting = true;
}
final long end = System.currentTimeMillis() + timeout;
final long tic = System.currentTimeMillis();
return doPrompt(message, timeout, tic);
}
private String doPrompt(final String message, final long timeout, final long tic)
throws InterruptedIOException, IOException {
do {
if (!checkPrompt()) {
break;
}
getConnection(timeout);
getConnection(getTimeoutLeft(tic, timeout));
boolean connect;
ConsoleInput actualConnected;
synchronized (connectionLock) {
@ -254,8 +227,13 @@ public final class ConnectingConsoleInput implements ConsoleInput {
continue;
}
try {
final String res = actualConnected.prompt(message,
end - System.currentTimeMillis());
final long timeoutLeft = getTimeoutLeft(tic, timeout);
final String res;
if (timeoutLeft == 0) {
res = actualConnected.prompt(message);
} else {
res = actualConnected.prompt(message, timeoutLeft);
}
synchronized (promptLock) {
if (prompting) {
prompting = false;
@ -272,21 +250,33 @@ public final class ConnectingConsoleInput implements ConsoleInput {
throw e;
}
}
} while (System.currentTimeMillis() < end);
} while (checkTimeout(tic, timeout));
return null;
}
private static boolean checkTimeout(final long tic, final long timeout) {
return timeout <= 0 || tic + timeout > System.currentTimeMillis();
}
private static long getTimeoutLeft(final long tic, final long timeout) {
if (timeout > 0) {
return Math.max(timeout + tic - System.currentTimeMillis(), 1);
}
if (timeout < 0) {
return 1;
}
return 0;
}
/** Test if we are in prompting state.
*
* @return if the process is currently in prompting state.
* @throws InterruptedIOException if the prompting state has been interrupted */
private boolean checkPrompt() throws InterruptedIOException {
synchronized (promptLock) {
if (!prompting) {
if (interrupting) {
interrupting = false;
throw new InterruptedIOException("Prompt was interrupted");
}
if (!prompting && interrupting) {
interrupting = false;
throw new InterruptedIOException("Prompt was interrupted");
}
return prompting;
}