/**
* Checks if address can be reached using one argument InetAddress.isReachable() version or ping
* command if failed.
*
* @param addr Address to check.
* @param reachTimeout Timeout for the check.
* @return {@code True} if address is reachable.
*/
public static boolean reachableByPing(InetAddress addr, int reachTimeout) {
try {
if (addr.isReachable(reachTimeout)) return true;
String cmd = String.format("ping -%s 1 %s", U.isWindows() ? "n" : "c", addr.getHostAddress());
Process myProc = Runtime.getRuntime().exec(cmd);
myProc.waitFor();
return myProc.exitValue() == 0;
} catch (IOException ignore) {
return false;
} catch (InterruptedException ignored) {
Thread.currentThread().interrupt();
return false;
}
}
/** {@inheritDoc} */
@SuppressWarnings("BusyWait")
@Override
public void start(GridRestProtocolHandler hnd) throws GridException {
InetAddress locHost;
try {
locHost = U.resolveLocalHost(ctx.config().getLocalHost());
} catch (IOException e) {
throw new GridException(
"Failed to resolve local host to bind address: " + ctx.config().getLocalHost(), e);
}
System.setProperty(GG_JETTY_HOST, locHost.getHostAddress());
jettyHnd =
new GridJettyRestHandler(
hnd,
new C1<String, Boolean>() {
@Override
public Boolean apply(String tok) {
return F.isEmpty(secretKey) || authenticate(tok);
}
},
log);
String jettyPath = ctx.config().getRestJettyPath();
final URL cfgUrl;
if (jettyPath == null) {
cfgUrl = null;
if (log.isDebugEnabled())
log.debug("Jetty configuration file is not provided, using defaults.");
} else {
cfgUrl = U.resolveGridGainUrl(jettyPath);
if (cfgUrl == null)
throw new GridSpiException("Invalid Jetty configuration file: " + jettyPath);
else if (log.isDebugEnabled()) log.debug("Jetty configuration file: " + cfgUrl);
}
loadJettyConfiguration(cfgUrl);
AbstractNetworkConnector connector = getJettyConnector();
try {
host = InetAddress.getByName(connector.getHost());
} catch (UnknownHostException e) {
throw new GridException("Failed to resolve Jetty host address: " + connector.getHost(), e);
}
int initPort = connector.getPort();
int lastPort = initPort + ctx.config().getRestPortRange() - 1;
for (port = initPort; port <= lastPort; port++) {
connector.setPort(port);
if (startJetty()) {
if (log.isInfoEnabled()) log.info(startInfo());
return;
}
}
U.warn(
log,
"Failed to start Jetty REST server (possibly all ports in range are in use) "
+ "[firstPort="
+ initPort
+ ", lastPort="
+ lastPort
+ ']');
}