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package com.orbekk.same;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.googlecode.jsonrpc4j.ProxyUtil;
import com.orbekk.net.MyJsonRpcHttpClient;
import com.orbekk.paxos.PaxosService;
import com.orbekk.same.discovery.DirectoryService;
public class ConnectionManagerImpl implements ConnectionManager {
private int connectionTimeout;
private int readTimeout;
private Map<String, MyJsonRpcHttpClient> connectionCache =
new HashMap<String, MyJsonRpcHttpClient>();
private Logger logger = LoggerFactory.getLogger(getClass());
/**
* @param connectionTimout Timeout for establishing connection in milliseconds.
* @param readTimeout Timeout for waiting for answer in milliseconds.
*/
public ConnectionManagerImpl(int connectionTimout, int readTimeout) {
this.connectionTimeout = connectionTimout;
this.readTimeout = readTimeout;
}
private MyJsonRpcHttpClient getConnection(String url)
throws MalformedURLException {
if (!connectionCache.containsKey(url)) {
connectionCache.put(url, new MyJsonRpcHttpClient(new URL(url),
connectionTimeout, readTimeout));
}
return connectionCache.get(url);
}
private <T>T getClassProxy(String url, Class<T> clazz) {
T service = null;
try {
MyJsonRpcHttpClient client = getConnection(url);
service = ProxyUtil.createProxy(
this.getClass().getClassLoader(),
clazz,
client);
} catch (MalformedURLException e) {
logger.warn("Unable to create client for {}, {}", url, e);
}
return service;
}
@Override
public ClientService getClient(String url) {
return getClassProxy(url, ClientService.class);
}
@Override
public MasterService getMaster(String url) {
return getClassProxy(url, MasterService.class);
}
@Override
public PaxosService getPaxos(String url) {
return getClassProxy(url, PaxosService.class);
}
@Override
public DirectoryService getDirectory(String url) {
return getClassProxy(url, DirectoryService.class);
}
}
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