/*******************************************************************************
* Copyright 2012-2014 by Aerospike.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
******************************************************************************/
package com.aerospike.client.async;
import java.io.IOException;
import java.nio.channels.spi.SelectorProvider;
import java.util.concurrent.atomic.AtomicInteger;
import com.aerospike.client.AerospikeException;
import com.aerospike.client.util.Util;
public final class SelectorManagers {
private final SelectorManager[] managers;
private final AtomicInteger current = new AtomicInteger();
public SelectorManagers(AsyncClientPolicy policy) throws AerospikeException {
managers = new SelectorManager[policy.asyncSelectorThreads];
SelectorProvider provider = SelectorProvider.provider();
for (int i = 0; i < policy.asyncSelectorThreads; i++) {
try {
managers[i] = new SelectorManager(policy, provider);
}
catch (IOException ioe) {
for (int j = 0; j < i; j++) {
managers[j].close();
}
throw new AerospikeException("Failed to construct event manager: " + Util.getErrorMessage(ioe));
}
}
int count = 0;
for (SelectorManager manager : managers) {
manager.setName("selector" + count);
manager.setDaemon(true);
manager.start();
count++;
}
}
public SelectorManager next() {
return managers[Math.abs(current.getAndIncrement() % managers.length)];
}
public void close() {
for (SelectorManager manager : managers) {
manager.close();
}
}
}