package redis.clients.jedis;
import java.io.Closeable;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.SocketException;
import java.util.ArrayList;
import java.util.List;
import redis.clients.jedis.Protocol.Command;
import redis.clients.jedis.exceptions.JedisConnectionException;
import redis.clients.jedis.exceptions.JedisDataException;
import redis.clients.util.RedisInputStream;
import redis.clients.util.RedisOutputStream;
import redis.clients.util.SafeEncoder;
public class Connection implements Closeable {
private String host = Protocol.DEFAULT_HOST;
private int port = Protocol.DEFAULT_PORT;
private Socket socket;
private RedisOutputStream outputStream;
private RedisInputStream inputStream;
private int timeout = Protocol.DEFAULT_TIMEOUT;
private boolean broken = false;
public Connection() {
}
public Connection(final String host) {
this.host = host;
}
public Connection(final String host, final int port) {
this.host = host;
this.port = port;
}
public Socket getSocket() {
return socket;
}
public int getTimeout() {
return timeout;
}
public void setTimeout(final int timeout) {
this.timeout = timeout;
}
public void setTimeoutInfinite() {
try {
if (!isConnected()) {
connect();
}
socket.setKeepAlive(true);
socket.setSoTimeout(0);
} catch (SocketException ex) {
broken = true;
throw new JedisConnectionException(ex);
}
}
public void rollbackTimeout() {
try {
socket.setSoTimeout(timeout);
socket.setKeepAlive(false);
} catch (SocketException ex) {
broken = true;
throw new JedisConnectionException(ex);
}
}
protected Connection sendCommand(final Command cmd, final String... args) {
final byte[][] bargs = new byte[args.length][];
for (int i = 0; i < args.length; i++) {
bargs[i] = SafeEncoder.encode(args[i]);
}
return sendCommand(cmd, bargs);
}
protected Connection sendCommand(final Command cmd, final byte[]... args) {
try {
connect();
Protocol.sendCommand(outputStream, cmd, args);
return this;
} catch (JedisConnectionException ex) {
// Any other exceptions related to connection?
broken = true;
throw ex;
}
}
protected Connection sendCommand(final Command cmd) {
try {
connect();
Protocol.sendCommand(outputStream, cmd, new byte[0][]);
return this;
} catch (JedisConnectionException ex) {
// Any other exceptions related to connection?
broken = true;
throw ex;
}
}
public String getHost() {
return host;
}
public void setHost(final String host) {
this.host = host;
}
public int getPort() {
return port;
}
public void setPort(final int port) {
this.port = port;
}
public void connect() {
if (!isConnected()) {
try {
socket = new Socket();
// ->@wjw_add
socket.setReuseAddress(true);
socket.setKeepAlive(true); // Will monitor the TCP connection is
// valid
socket.setTcpNoDelay(true); // Socket buffer Whetherclosed, to
// ensure timely delivery of data
socket.setSoLinger(true, 0); // Control calls close () method,
// the underlying socket is closed
// immediately
// <-@wjw_add
socket.connect(new InetSocketAddress(host, port), timeout);
socket.setSoTimeout(timeout);
outputStream = new RedisOutputStream(socket.getOutputStream());
inputStream = new RedisInputStream(socket.getInputStream());
} catch (IOException ex) {
broken = true;
throw new JedisConnectionException(ex);
}
}
}
@Override
public void close() {
disconnect();
}
public void disconnect() {
if (isConnected()) {
try {
inputStream.close();
outputStream.close();
if (!socket.isClosed()) {
socket.close();
}
} catch (IOException ex) {
broken = true;
throw new JedisConnectionException(ex);
}
}
}
public boolean isConnected() {
return socket != null && socket.isBound() && !socket.isClosed()
&& socket.isConnected() && !socket.isInputShutdown()
&& !socket.isOutputShutdown();
}
protected String getStatusCodeReply() {
flush();
final byte[] resp = (byte[]) readProtocolWithCheckingBroken();
if (null == resp) {
return null;
} else {
return SafeEncoder.encode(resp);
}
}
public String getBulkReply() {
final byte[] result = getBinaryBulkReply();
if (null != result) {
return SafeEncoder.encode(result);
} else {
return null;
}
}
public byte[] getBinaryBulkReply() {
flush();
return (byte[]) readProtocolWithCheckingBroken();
}
public Long getIntegerReply() {
flush();
return (Long) readProtocolWithCheckingBroken();
}
public List<String> getMultiBulkReply() {
return BuilderFactory.STRING_LIST.build(getBinaryMultiBulkReply());
}
@SuppressWarnings("unchecked")
public List<byte[]> getBinaryMultiBulkReply() {
flush();
return (List<byte[]>) readProtocolWithCheckingBroken();
}
@SuppressWarnings("unchecked")
public List<Object> getRawObjectMultiBulkReply() {
return (List<Object>) readProtocolWithCheckingBroken();
}
public List<Object> getObjectMultiBulkReply() {
flush();
return getRawObjectMultiBulkReply();
}
@SuppressWarnings("unchecked")
public List<Long> getIntegerMultiBulkReply() {
flush();
return (List<Long>) Protocol.read(inputStream);
}
public Object getOne() {
flush();
return readProtocolWithCheckingBroken();
}
public boolean isBroken() {
return broken;
}
protected void flush() {
try {
outputStream.flush();
} catch (IOException ex) {
broken = true;
throw new JedisConnectionException(ex);
}
}
protected Object readProtocolWithCheckingBroken() {
try {
return Protocol.read(inputStream);
} catch (JedisConnectionException exc) {
broken = true;
throw exc;
}
}
public List<Object> getMany(int count) {
flush();
List<Object> responses = new ArrayList<Object>();
for (int i = 0; i < count; i++) {
try {
responses.add(readProtocolWithCheckingBroken());
} catch (JedisDataException e) {
responses.add(e);
}
}
return responses;
}
}