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package com.orbekk.same;
import org.eclipse.jetty.server.Server;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.googlecode.jsonrpc4j.JsonRpcServer;
import com.orbekk.net.HttpUtil;
import com.orbekk.paxos.PaxosService;
import com.orbekk.paxos.PaxosServiceImpl;
public class SameController implements UrlReceiver {
private Logger logger = LoggerFactory.getLogger(getClass());
private int port;
private Server server;
private MasterServiceImpl master;
private ClientServiceImpl client;
private PaxosServiceImpl paxos;
/**
* Timeout for remote operations in milliseconds.
*/
private static final int timeout = 10000;
public static SameController create(int port) {
ConnectionManagerImpl connections = new ConnectionManagerImpl(
timeout, timeout);
State state = new State("Default");
Broadcaster broadcaster = BroadcasterImpl.getDefaultBroadcastRunner();
MasterServiceImpl master = new MasterServiceImpl(state, connections,
broadcaster);
JsonRpcServer jsonMaster = new JsonRpcServer(master, MasterService.class);
ClientServiceImpl client = new ClientServiceImpl(state, connections);
JsonRpcServer jsonClient = new JsonRpcServer(client, ClientService.class);
PaxosServiceImpl paxos = new PaxosServiceImpl("");
JsonRpcServer jsonPaxos = new JsonRpcServer(paxos, PaxosService.class);
Server server = new Server(port);
SameController controller = new SameController(port, server, master, client,
paxos);
RpcHandler rpcHandler = new RpcHandler(null);
rpcHandler.addRpcServer("/MasterService.json", jsonMaster);
rpcHandler.addRpcServer("/ClientService.json", jsonClient);
rpcHandler.addRpcServer("/PaxosService.json", jsonPaxos);
server.setHandler(rpcHandler);
return controller;
}
public SameController(
int port,
Server server,
MasterServiceImpl master,
ClientServiceImpl client,
PaxosServiceImpl paxos) {
this.port = port;
this.server = server;
this.master = master;
this.client = client;
this.paxos = paxos;
}
public void start() throws Exception {
server.start();
master.start();
client.start();
}
public void stop() {
try {
client.interrupt();
master.interrupt();
server.stop();
} catch (Exception e) {
logger.error("Failed to stop webserver", e);
}
}
public void join() {
try {
server.join();
master.join();
} catch (InterruptedException e) {
master.interrupt();
try {
server.stop();
} catch (Exception e1) {
logger.error("Failed to stop server", e);
}
}
}
public boolean tryGetUrl(String serverUrl) {
int retries = 100;
while (client.getUrl() == null && retries > 0) {
HttpUtil.sendHttpRequest(serverUrl + "ping?port=" +
port);
try {
Thread.sleep(500);
} catch (InterruptedException e) {
return false;
}
retries -= 1;
}
return client.getUrl() != null;
}
public void joinNetwork(String url) {
boolean hasUrl = tryGetUrl(url);
if (hasUrl) {
client.joinNetwork(url + "MasterService.json");
}
}
@Override
public void setUrl(String url) {
if (master != null) {
master.setUrl(url);
}
if (client != null) {
client.setUrl(url);
}
}
public ClientServiceImpl getClient() {
return client;
}
public MasterServiceImpl getMaster() {
return master;
}
}
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