/*
* Copyright 2013 Netflix, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.netflix.suro.client.async;
import com.netflix.suro.ClientConfig;
import com.netflix.suro.connection.ConnectionPool;
import com.netflix.suro.message.Message;
import com.netflix.suro.message.MessageSetReader;
import com.netflix.suro.thrift.Result;
import com.netflix.suro.thrift.ResultCode;
import com.netflix.suro.thrift.TMessageSet;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* The sender that actually sends out messages. It can be scheduled by an {@link java.util.concurrent.Executor}
* and therefore be used to send out messages asynchronously. It also retries if a message failed to be sent.
*/
public class AsyncSuroSender implements Runnable {
private static final Logger log = LoggerFactory.getLogger(AsyncSuroSender.class);
private final AsyncSuroClient client;
private final TMessageSet messageSet;
private final ConnectionPool connectionPool;
private final ClientConfig config;
public AsyncSuroSender(
TMessageSet messageSet,
AsyncSuroClient client,
ClientConfig config) {
this.messageSet = messageSet;
this.client = client;
this.connectionPool = client.getConnectionPool();
this.config = config;
}
public void run() {
boolean sent = false;
boolean retried = false;
long startTS = System.currentTimeMillis();
for (int i = 0; i < config.getRetryCount(); ++i) {
ConnectionPool.SuroConnection connection = connectionPool.chooseConnection();
if (connection == null) {
continue;
}
try {
Result result = connection.send(messageSet);
if (result != null && result.getResultCode() == ResultCode.OK && result.isSetMessage()) {
sent = true;
connectionPool.endConnection(connection);
retried = i > 0;
break;
} else {
log.error("Server is not stable: " + connection.getServer().toString());
connectionPool.markServerDown(connection);
try { Thread.sleep(Math.min(i + 1, 5) * 100); } catch (InterruptedException e) {} // ignore an exception
}
} catch (Exception e) {
log.error("Exception in send: " + e.getMessage(), e);
connectionPool.markServerDown(connection);
client.updateSenderException();
}
}
if (sent){
client.updateSendTime(System.currentTimeMillis() - startTS);
client.updateSentDataStats(messageSet, retried);
} else {
for (Message m : new MessageSetReader(messageSet)) {
client.restore(m);
}
}
}
public TMessageSet getMessageSet() {
return messageSet;
}
}