Example 1 with Freezable
use of water.Freezable in project h2o-3 by h2oai.
the class IcedHashMapGeneric method write_impl.
// This comment is stolen from water.parser.Categorical:
//
// Since this is a *concurrent* hashtable, writing it whilst its being
// updated is tricky. If the table is NOT being updated, then all is written
// as expected. If the table IS being updated we only promise to write the
// Keys that existed at the time the table write began. If elements are
// being deleted, they may be written anyways. If the Values are changing, a
// random Value is written.
public final AutoBuffer write_impl(AutoBuffer ab) {
_write_lock = true;
try {
for (Entry<K, V> e : map().entrySet()) {
K key = e.getKey();
assert key != null;
V val = e.getValue();
assert val != null;
int mode = 0;
if (key instanceof String) {
if (val instanceof String) {
mode = 1;
} else if (val instanceof Freezable) {
mode = 3;
} else if (val instanceof Freezable[]) {
mode = 5;
} else if (val instanceof Integer) {
mode = 7;
} else {
throw new IllegalArgumentException("unsupported value class " + val.getClass().getName());
}
} else {
if (!(key instanceof Iced))
throw new IllegalArgumentException("key must be String or Freezable, got " + key.getClass().getName());
if (val instanceof String) {
mode = 2;
} else if (val instanceof Freezable) {
mode = 4;
} else if (val instanceof Freezable[]) {
mode = 6;
} else if (val instanceof Integer) {
mode = 8;
} else {
throw new IllegalArgumentException("unsupported value class " + val.getClass().getName());
}
}
// Type of hashmap being serialized
ab.put1(mode);
// put key
if (isStringKey(mode))
ab.putStr((String) key);
else
ab.put((Freezable) key);
// put value
if (isStringVal(mode))
ab.putStr((String) val);
else if (isFreezeVal(mode))
ab.put((Freezable) val);
else if (isFArrayVal(mode)) {
ab.put4(((Freezable[]) val).length);
for (Freezable v : (Freezable[]) val) ab.put(v);
} else if (isIntegrVal(mode))
ab.put4((Integer) val);
else
throw H2O.fail();
}
ab.put1(-1);
} catch (Throwable t) {
System.err.println("Iced hash map serialization failed! " + t.toString() + ", msg = " + t.getMessage());
t.printStackTrace();
throw H2O.fail("Iced hash map serialization failed!" + t.toString() + ", msg = " + t.getMessage());
} finally {
_write_lock = false;
}
return ab;
}