protected ChannelExec openCommandChannel(ClientSession session, String cmd) throws IOException {
long waitTimeout =
PropertyResolverUtils.getLongProperty(
session, SCP_EXEC_CHANNEL_OPEN_TIMEOUT, DEFAULT_EXEC_CHANNEL_OPEN_TIMEOUT);
ChannelExec channel = session.createExecChannel(cmd);
long startTime = System.nanoTime();
try {
channel.open().verify(waitTimeout);
long endTime = System.nanoTime();
long nanosWait = endTime - startTime;
if (log.isTraceEnabled()) {
log.trace(
"openCommandChannel("
+ session
+ ")["
+ cmd
+ "]"
+ " completed after "
+ nanosWait
+ " nanos out of "
+ TimeUnit.MILLISECONDS.toNanos(waitTimeout));
}
return channel;
} catch (IOException | RuntimeException e) {
long endTime = System.nanoTime();
long nanosWait = endTime - startTime;
if (log.isTraceEnabled()) {
log.trace(
"openCommandChannel("
+ session
+ ")["
+ cmd
+ "]"
+ " failed ("
+ e.getClass().getSimpleName()
+ ")"
+ " to complete after "
+ nanosWait
+ " nanos out of "
+ TimeUnit.MILLISECONDS.toNanos(waitTimeout)
+ ": "
+ e.getMessage());
}
channel.close(false);
throw e;
}
}
private void execute(ClientSession session, String command) throws Exception {
try (ChannelExec channel = session.createExecChannel(command)) {
channel.setOut(System.out);
channel.setErr(System.err);
channel.open().verify(11L, TimeUnit.SECONDS);
Collection<ClientChannelEvent> result =
channel.waitFor(EnumSet.of(ClientChannelEvent.CLOSED), TimeUnit.MINUTES.toMillis(1L));
assertTrue(
"Command '" + command + "'not completed on time: " + result,
result.contains(ClientChannelEvent.CLOSED));
Integer status = channel.getExitStatus();
if (status != null) {
assertEquals("Failed (" + status + ") " + command, 0, status.intValue());
}
}
}