/**
* Store an end-point to host ID mapping. Each ID must be unique, and cannot be changed after the
* fact.
*
* @param hostId
* @param endpoint
*/
public void updateHostId(UUID hostId, InetAddress endpoint) {
assert hostId != null;
assert endpoint != null;
lock.writeLock().lock();
try {
InetAddress storedEp = endpointToHostIdMap.inverse().get(hostId);
if (storedEp != null) {
if (!storedEp.equals(endpoint) && (FailureDetector.instance.isAlive(storedEp))) {
throw new RuntimeException(
String.format(
"Host ID collision between active endpoint %s and %s (id=%s)",
storedEp, endpoint, hostId));
}
}
UUID storedId = endpointToHostIdMap.get(endpoint);
if ((storedId != null) && (!storedId.equals(hostId)))
logger.warn("Changing {}'s host ID from {} to {}", endpoint, storedId, hostId);
endpointToHostIdMap.forcePut(endpoint, hostId);
} finally {
lock.writeLock().unlock();
}
}
public void testConstrainedBiMapIllegal() {
BiMap<String, Integer> map =
new AbstractBiMap<String, Integer>(
Maps.<String, Integer>newLinkedHashMap(), Maps.<Integer, String>newLinkedHashMap()) {};
BiMap<String, Integer> constrained = MapConstraints.constrainedBiMap(map, TEST_CONSTRAINT);
try {
constrained.put(TEST_KEY, TEST_VALUE);
fail("TestKeyException expected");
} catch (TestKeyException expected) {
}
try {
constrained.put("baz", TEST_VALUE);
fail("TestValueException expected");
} catch (TestValueException expected) {
}
try {
constrained.put(TEST_KEY, 3);
fail("TestKeyException expected");
} catch (TestKeyException expected) {
}
try {
constrained.putAll(ImmutableMap.of("baz", 3, TEST_KEY, 4));
fail("TestKeyException expected");
} catch (TestKeyException expected) {
}
try {
constrained.forcePut(TEST_KEY, 3);
fail("TestKeyException expected");
} catch (TestKeyException expected) {
}
try {
constrained.inverse().forcePut(TEST_VALUE, "baz");
fail("TestValueException expected");
} catch (TestValueException expected) {
}
try {
constrained.inverse().forcePut(3, TEST_KEY);
fail("TestKeyException expected");
} catch (TestKeyException expected) {
}
assertEquals(Collections.emptySet(), map.entrySet());
assertEquals(Collections.emptySet(), constrained.entrySet());
}