public abstract class AbstractServer implements Server {
protected final Logger logger = LoggerLoader.getLogger(this.getClass());
RequestProcessor requestProcessor = null;
ServerConfig serverConfig = null;
boolean useLastPort =
ConfigManagerLoader.getConfigManager().getBooleanValue("pigeon.port.uselast", true);
public abstract void doStart(ServerConfig serverConfig);
public abstract void doStop();
public abstract <T> void doAddService(ProviderConfig<T> providerConfig);
public abstract <T> void doRemoveService(ProviderConfig<T> providerConfig);
private class InnerConfigChangeListener implements ConfigChangeListener {
@Override
public void onKeyUpdated(String key, String value) {
if (key.endsWith("pigeon.provider.processtype")) {}
}
@Override
public void onKeyAdded(String key, String value) {}
@Override
public void onKeyRemoved(String key) {}
}
public void start(ServerConfig serverConfig) {
if (logger.isInfoEnabled()) {
logger.info("server config:" + serverConfig);
}
ConfigManagerLoader.getConfigManager()
.registerConfigChangeListener(new InnerConfigChangeListener());
requestProcessor = RequestProcessorFactory.selectProcessor(serverConfig);
doStart(serverConfig);
if (requestProcessor != null) {
requestProcessor.start();
}
this.serverConfig = serverConfig;
}
public void stop() {
doStop();
if (requestProcessor != null) {
requestProcessor.stop();
}
}
@Override
public <T> void addService(ProviderConfig<T> providerConfig) {
requestProcessor.addService(providerConfig);
doAddService(providerConfig);
}
@Override
public <T> void removeService(ProviderConfig<T> providerConfig) {
requestProcessor.removeService(providerConfig);
doRemoveService(providerConfig);
}
public RequestProcessor getRequestProcessor() {
return requestProcessor;
}
@Override
public ServerConfig getServerConfig() {
return serverConfig;
}
@Override
public Future<InvocationResponse> processRequest(
InvocationRequest request, ProviderContext providerContext) {
return requestProcessor.processRequest(request, providerContext);
}
public int getAvailablePort(int port) {
int lastPort = port;
if (!useLastPort) {
lastPort = NetUtils.getAvailablePort(lastPort);
} else {
String filePath = LoggerLoader.LOG_ROOT + "/pigeon-port.conf";
File file = new File(filePath);
Properties properties = null;
String key = null;
try {
key = this.getClass().getResource("/").getPath() + port;
if (file.exists()) {
try {
properties = FileUtils.readFile(new FileInputStream(file));
String strLastPort = properties.getProperty(key);
if (StringUtils.isNotBlank(strLastPort)) {
lastPort = Integer.parseInt(strLastPort);
}
} catch (Throwable e) {
}
}
} catch (RuntimeException e) {
}
lastPort = NetUtils.getAvailablePort(lastPort);
if (properties == null) {
properties = new Properties();
}
if (key != null) {
properties.put(key, lastPort);
}
try {
FileUtils.writeFile(file, properties);
} catch (IOException e) {
}
}
return lastPort;
}
}
/** Created by chenchongze on 16/5/20. */
public enum RequestQualityManager {
INSTANCE;
private RequestQualityManager() {}
private static final Logger logger = LoggerLoader.getLogger(RequestQualityManager.class);
private static final ConfigManager configManager = ConfigManagerLoader.getConfigManager();
private static final String KEY_REQUEST_QUALITY_AUTO = "pigeon.invoker.request.quality.auto";
private static final String KEY_REQUEST_QUALITY_FAILED_PERCENT_GOOD =
"pigeon.invoker.request.quality.failed.percent.good";
private static final String KEY_REQUEST_QUALITY_FAILED_PERCENT_NORMAL =
"pigeon.invoker.request.quality.failed.percent.normal";
private static final String KEY_REQUEST_QUALITY_THRESHOLD_TOTAL =
"pigeon.invoker.request.quality.threshold.total";
static {
configManager.getBooleanValue(KEY_REQUEST_QUALITY_AUTO, false);
configManager.getIntValue(KEY_REQUEST_QUALITY_THRESHOLD_TOTAL, 20);
configManager.getFloatValue(KEY_REQUEST_QUALITY_FAILED_PERCENT_GOOD, 1f);
configManager.getFloatValue(KEY_REQUEST_QUALITY_FAILED_PERCENT_NORMAL, 5f);
}
// hosts --> ( requestUrl:serviceName#method --> second --> { total, failed } )
private ConcurrentHashMap<String, ConcurrentHashMap<String, ConcurrentHashMap<Integer, Quality>>>
addrReqUrlSecondQualities =
new ConcurrentHashMap<
String, ConcurrentHashMap<String, ConcurrentHashMap<Integer, Quality>>>();
// hosts --> ( requestUrl:serviceName#method --> { total, failed } )
private volatile ConcurrentHashMap<String, ConcurrentHashMap<String, Quality>>
addrReqUrlQualities = null;
public ConcurrentHashMap<String, ConcurrentHashMap<String, ConcurrentHashMap<Integer, Quality>>>
getAddrReqUrlSecondQualities() {
return addrReqUrlSecondQualities;
}
public ConcurrentHashMap<String, ConcurrentHashMap<String, Quality>> getAddrReqUrlQualities() {
return addrReqUrlQualities;
}
public void setAddrReqUrlQualities(
ConcurrentHashMap<String, ConcurrentHashMap<String, Quality>> addrReqUrlQualities) {
this.addrReqUrlQualities = addrReqUrlQualities;
}
public void addClientRequest(InvokerContext context, boolean failed) {
if (configManager.getBooleanValue(KEY_REQUEST_QUALITY_AUTO, false)
&& context.getClient() != null) {
String address = context.getClient().getAddress();
ConcurrentHashMap<String, ConcurrentHashMap<Integer, Quality>> requestSecondQuality =
addrReqUrlSecondQualities.get(address);
if (requestSecondQuality == null) {
requestSecondQuality = new ConcurrentHashMap<String, ConcurrentHashMap<Integer, Quality>>();
ConcurrentHashMap<String, ConcurrentHashMap<Integer, Quality>> last =
addrReqUrlSecondQualities.putIfAbsent(address, requestSecondQuality);
if (last != null) {
requestSecondQuality = last;
}
}
String requestUrl = getRequestUrl(context);
ConcurrentHashMap<Integer, Quality> secondQuality = requestSecondQuality.get(requestUrl);
if (secondQuality == null) {
secondQuality = new ConcurrentHashMap<Integer, Quality>();
ConcurrentHashMap<Integer, Quality> last =
requestSecondQuality.putIfAbsent(requestUrl, secondQuality);
if (last != null) {
secondQuality = last;
}
}
int currentSecond = Calendar.getInstance().get(Calendar.SECOND);
Quality quality = secondQuality.get(currentSecond);
if (quality == null) {
quality = new Quality(0, 0);
Quality last = secondQuality.putIfAbsent(currentSecond, quality);
if (last != null) {
quality = last;
}
}
quality.total.incrementAndGet();
if (failed) {
quality.failed.incrementAndGet();
}
}
}
public void removeClientQualities(String address) {
addrReqUrlSecondQualities.remove(address);
}
private String getRequestUrl(InvokerContext context) {
return context.getInvokerConfig().getUrl() + "#" + context.getMethodName();
}
private String getRequestUrl(InvocationRequest request) {
return request.getServiceName() + "#" + request.getMethodName();
}
/**
* 根据方法的服务质量过滤，优先保留服务质量good的clients，数量低于least时加入服务质量normal的clients
*
* @param clientList
* @param request
* @param least 最少保留个数
* @return
*/
public List<Client> getQualityPreferClients(
List<Client> clientList, InvocationRequest request, float least) {
// 筛选good，normal，bad clients
// 直接进行服务质量路由,先只保留服务质量good的，如果不够（比如少于1个），加入服务质量normal的
if (!CollectionUtils.isEmpty(addrReqUrlQualities)) {
String requestUrl = getRequestUrl(request);
Map<RequrlQuality, List<Client>> filterQualityClientsMap =
new HashMap<RequrlQuality, List<Client>>();
for (RequrlQuality reqQuality : RequrlQuality.values()) {
filterQualityClientsMap.put(reqQuality, new ArrayList<Client>());
}
for (Client client : clientList) {
if (addrReqUrlQualities.containsKey(client.getAddress())) {
ConcurrentHashMap<String, Quality> reqUrlQualities =
addrReqUrlQualities.get(client.getAddress());
if (reqUrlQualities.containsKey(requestUrl)) {
Quality quality = reqUrlQualities.get(requestUrl);
switch (quality.getQuality()) {
case REQURL_QUALITY_GOOD:
filterQualityClientsMap.get(RequrlQuality.REQURL_QUALITY_GOOD).add(client);
break;
case REQURL_QUALITY_NORNAL:
filterQualityClientsMap.get(RequrlQuality.REQURL_QUALITY_NORNAL).add(client);
break;
case REQURL_QUALITY_BAD:
filterQualityClientsMap.get(RequrlQuality.REQURL_QUALITY_BAD).add(client);
break;
default:
// never be here
break;
}
}
}
}
List<Client> filterQualityClients = new ArrayList<Client>();
filterQualityClients.addAll(filterQualityClientsMap.get(RequrlQuality.REQURL_QUALITY_GOOD));
if (filterQualityClients.size() < least) {
filterQualityClients.addAll(
filterQualityClientsMap.get(RequrlQuality.REQURL_QUALITY_NORNAL));
}
return filterQualityClients;
}
return clientList;
}
public boolean isEnableRequestQualityRoute() {
return configManager.getBooleanValue(KEY_REQUEST_QUALITY_AUTO, false);
}
public static class Quality {
private RequrlQuality quality = RequrlQuality.REQURL_QUALITY_GOOD;
private AtomicInteger failed = new AtomicInteger();
private AtomicInteger total = new AtomicInteger();
public Quality() {}
public Quality(int total, int failed) {
this.total.set(total);
this.failed.set(failed);
}
public AtomicInteger getFailed() {
return failed;
}
public int getFailedValue() {
return failed.get();
}
public void setFailed(int failed) {
this.failed.set(failed);
}
public AtomicInteger getTotal() {
return total;
}
public int getTotalValue() {
return total.get();
}
public void setTotal(int total) {
this.total.set(total);
}
public float getFailedPercent() {
if (total.get() > 0) {
return failed.get() * 100 / total.get();
} else {
return 0;
}
}
public void clear() {
total.set(0);
failed.set(0);
quality = RequrlQuality.REQURL_QUALITY_GOOD;
}
public RequrlQuality getQuality() {
if (getTotalValue() > configManager.getIntValue(KEY_REQUEST_QUALITY_THRESHOLD_TOTAL, 20)) {
float failedRate = getFailedPercent();
if (failedRate < configManager.getFloatValue(KEY_REQUEST_QUALITY_FAILED_PERCENT_GOOD, 1f)) {
quality = RequrlQuality.REQURL_QUALITY_GOOD;
} else if (failedRate
>= configManager.getFloatValue(KEY_REQUEST_QUALITY_FAILED_PERCENT_GOOD, 1f)
&& failedRate
< configManager.getFloatValue(KEY_REQUEST_QUALITY_FAILED_PERCENT_NORMAL, 5f)) {
quality = RequrlQuality.REQURL_QUALITY_NORNAL;
} else if (failedRate
>= configManager.getFloatValue(KEY_REQUEST_QUALITY_FAILED_PERCENT_NORMAL, 5f)) {
quality = RequrlQuality.REQURL_QUALITY_BAD;
}
}
return quality;
}
public int getQualityValue() {
return getQuality().getValue();
}
}
private enum RequrlQuality {
REQURL_QUALITY_GOOD(0),
REQURL_QUALITY_NORNAL(1),
REQURL_QUALITY_BAD(2);
private int value;
private RequrlQuality(int value) {
this.value = value;
}
public int getValue() {
return value;
}
}
public static void main(String[] args) {
Quality quality = new Quality(105, 1);
System.out.println(quality.getQualityValue());
final ConcurrentHashMap<String, ConcurrentHashMap<String, Quality>> addrReqUrlQualities =
new ConcurrentHashMap<String, ConcurrentHashMap<String, Quality>>();
new Thread() {
@Override
public void run() {
RequestQualityManager.INSTANCE.setAddrReqUrlQualities(addrReqUrlQualities);
}
}.start();
try {
Thread.sleep(3000);
} catch (InterruptedException e) {
logger.warn("[main] thread interupt", e);
}
System.out.println(RequestQualityManager.INSTANCE.getAddrReqUrlQualities());
}
}
public class AnnotationBean
implements DisposableBean,
BeanFactoryPostProcessor,
BeanPostProcessor,
ApplicationContextAware {
private static final Logger logger = LoggerLoader.getLogger(AnnotationBean.class);
private String annotationPackage =
ConfigManagerLoader.getConfigManager()
.getStringValue("pigeon.provider.interface.packages", "com.dianping");
private String[] annotationPackages = new String[] {"com.dianping"};
private final ConcurrentMap<String, InvokerConfig<?>> invokerConfigs =
new ConcurrentHashMap<String, InvokerConfig<?>>();
public String getPackage() {
return annotationPackage;
}
public void setPackage(String annotationPackage) {
this.annotationPackage = annotationPackage;
this.annotationPackages =
(annotationPackage == null || annotationPackage.length() == 0)
? null
: Constants.COMMA_SPLIT_PATTERN.split(annotationPackage);
}
private ApplicationContext applicationContext;
public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
this.applicationContext = applicationContext;
}
public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory)
throws BeansException {
if (annotationPackage == null || annotationPackage.length() == 0) {
return;
}
if (beanFactory instanceof BeanDefinitionRegistry) {
try {
// init scanner
Class<?> scannerClass =
ClassUtils.loadClass(
"org.springframework.context.annotation.ClassPathBeanDefinitionScanner");
Object scanner =
scannerClass
.getConstructor(new Class<?>[] {BeanDefinitionRegistry.class, boolean.class})
.newInstance(new Object[] {(BeanDefinitionRegistry) beanFactory, true});
// add filter
Class<?> filterClass =
ClassUtils.loadClass("org.springframework.core.type.filter.AnnotationTypeFilter");
Object filter = filterClass.getConstructor(Class.class).newInstance(Service.class);
Method addIncludeFilter =
scannerClass.getMethod(
"addIncludeFilter",
ClassUtils.loadClass("org.springframework.core.type.filter.TypeFilter"));
addIncludeFilter.invoke(scanner, filter);
// scan packages
String[] packages = Constants.COMMA_SPLIT_PATTERN.split(annotationPackage);
Method scan = scannerClass.getMethod("scan", new Class<?>[] {String[].class});
scan.invoke(scanner, new Object[] {packages});
} catch (Throwable e) {
// spring 2.0
}
}
}
public int getDefaultPort(int port) {
if (port == 4040) {
try {
String app = ConfigManagerLoader.getConfigManager().getAppName();
if (StringUtils.isNotBlank(app)) {
return LangUtils.hash(app, 6000, 2000);
}
} catch (Throwable t) {
}
}
return port;
}
public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
if (!isMatchPackage(bean)) {
return bean;
}
Class<?> beanClass = bean.getClass();
int idxCglib =
beanClass.getName().contains("$$EnhancerByCGLIB")
? beanClass.getName().indexOf("$$EnhancerByCGLIB")
: beanClass.getName().indexOf("$$EnhancerBySpringCGLIB");
if (idxCglib != -1) {
try {
beanClass = ClassUtils.loadClass(beanClass.getName().substring(0, idxCglib));
} catch (ClassNotFoundException e) {
throw new IllegalStateException(
"Failed to export remote service class " + beanClass.getName(), e);
}
}
Service service = beanClass.getAnnotation(Service.class);
if (service != null) {
Class serviceInterface = service.interfaceClass();
if (void.class.equals(service.interfaceClass())) {
serviceInterface = ServiceConfigUtils.getServiceInterface(beanClass);
}
if (serviceInterface == null) {
serviceInterface = beanClass;
}
ProviderConfig<Object> providerConfig = new ProviderConfig<Object>(serviceInterface, bean);
providerConfig.setService(bean);
providerConfig.setUrl(service.url());
providerConfig.setVersion(service.version());
providerConfig.setSharedPool(service.useSharedPool());
providerConfig.setActives(service.actives());
ServerConfig serverConfig = new ServerConfig();
serverConfig.setPort(getDefaultPort(service.port()));
serverConfig.setGroup(service.group());
serverConfig.setAutoSelectPort(service.autoSelectPort());
providerConfig.setServerConfig(serverConfig);
ServiceFactory.addService(providerConfig);
}
postProcessBeforeInitialization(bean, beanName);
return bean;
}
public Object postProcessBeforeInitialization(Object bean, String beanName)
throws BeansException {
if (!isMatchPackage(bean)) {
return bean;
}
Method[] methods = bean.getClass().getMethods();
for (Method method : methods) {
String name = method.getName();
if (name.length() > 3
&& name.startsWith("set")
&& method.getParameterTypes().length == 1
&& Modifier.isPublic(method.getModifiers())
&& !Modifier.isStatic(method.getModifiers())) {
try {
Reference reference = method.getAnnotation(Reference.class);
if (reference != null) {
Object value = refer(reference, method.getParameterTypes()[0]);
if (value != null) {
method.invoke(bean, new Object[] {});
}
}
} catch (Throwable e) {
logger.error(
"Failed to init remote service reference at method "
+ name
+ " in class "
+ bean.getClass().getName()
+ ", cause: "
+ e.getMessage(),
e);
}
}
}
Class<?> superClass = bean.getClass().getSuperclass();
while (superClass != null && isMatchPackage(superClass)) {
referFields(bean, superClass.getDeclaredFields());
superClass = superClass.getSuperclass();
}
referFields(bean, bean.getClass().getDeclaredFields());
return bean;
}
private void referFields(Object bean, Field[] fields) {
for (Field field : fields) {
try {
if (!field.isAccessible()) {
field.setAccessible(true);
}
Reference reference = field.getAnnotation(Reference.class);
if (reference != null) {
Object value = refer(reference, field.getType());
if (value != null) {
field.set(bean, value);
}
}
} catch (Throwable e) {
logger.error(
"Failed to init remote service reference at field "
+ field.getName()
+ " in class "
+ bean.getClass().getName()
+ ", cause: "
+ e.getMessage(),
e);
}
}
}
private Object refer(
Reference reference, Class<?> referenceClass) { // method.getParameterTypes()[0]
String interfaceName;
if (!void.class.equals(reference.interfaceClass())) {
interfaceName = reference.interfaceClass().getName();
} else if (referenceClass.isInterface()) {
interfaceName = referenceClass.getName();
} else {
throw new IllegalStateException(
"The @Reference undefined interfaceClass or interfaceName, and the property type "
+ referenceClass.getName()
+ " is not a interface.");
}
String callbackClassName = reference.callback();
InvocationCallback callback = null;
if (StringUtils.isNotBlank(callbackClassName)) {
Class<?> clazz;
try {
clazz = ClassUtils.loadClass(callbackClassName);
} catch (ClassNotFoundException e) {
throw new IllegalStateException(
"The @Reference undefined callback "
+ callbackClassName
+ ", is not a ServiceCallback interface.");
}
if (!InvocationCallback.class.isAssignableFrom(clazz)) {
throw new IllegalStateException(
"The @Reference undefined callback "
+ callbackClassName
+ ", is not a ServiceCallback interface.");
}
try {
callback = (InvocationCallback) clazz.newInstance();
} catch (InstantiationException e) {
throw new IllegalStateException(
"The @Reference undefined callback "
+ callbackClassName
+ ", is not a ServiceCallback interface.");
} catch (IllegalAccessException e) {
throw new IllegalStateException(
"The @Reference undefined callback "
+ callbackClassName
+ ", is not a ServiceCallback interface.");
}
}
String key =
reference.group()
+ "/"
+ reference.url()
+ "@"
+ interfaceName
+ ":"
+ reference.version()
+ ":"
+ reference.serialize()
+ ":"
+ reference.protocol()
+ ":"
+ reference.timeout()
+ ":"
+ reference.callType();
InvokerConfig<?> invokerConfig = invokerConfigs.get(key);
if (invokerConfig == null) {
invokerConfig =
new InvokerConfig(
referenceClass,
reference.url(),
reference.timeout(),
reference.callType(),
reference.serialize(),
callback,
reference.group(),
false,
reference.loadbalance(),
reference.cluster(),
reference.retries(),
reference.timeoutRetry(),
reference.vip(),
reference.version(),
reference.protocol());
invokerConfig.setSecret(reference.secret());
invokerConfigs.putIfAbsent(key, invokerConfig);
invokerConfig = invokerConfigs.get(key);
}
return ServiceFactory.getService(invokerConfig);
}
private boolean isMatchPackage(Object bean) {
if (annotationPackages == null || annotationPackages.length == 0) {
return true;
}
String beanClassName = bean.getClass().getName();
for (String pkg : annotationPackages) {
if (beanClassName.startsWith(pkg)) {
return true;
}
}
return false;
}
private boolean isMatchPackage(Class type) {
String beanClassName = type.getName();
for (String pkg : annotationPackages) {
if (beanClassName.startsWith(pkg)) {
return true;
}
}
return false;
}
@Override
public void destroy() throws Exception {}
}
public class NettyClient extends AbstractClient {
private static final Logger logger = LoggerLoader.getLogger(NettyClient.class);
private ClientBootstrap bootstrap;
private Channel channel;
private String host;
private int port = ServerConfig.DEFAULT_PORT;
private String address;
private volatile boolean connected = false;
private volatile boolean closed = false;
private volatile boolean active = true;
private ConnectInfo connectInfo;
public static final int CLIENT_CONNECTIONS = Runtime.getRuntime().availableProcessors();
private static ConfigManager configManager = ConfigManagerLoader.getConfigManager();
private static ExecutorService bossExecutor =
Executors.newCachedThreadPool(new DefaultThreadFactory("Pigeon-Netty-Client-Boss"));
private static ExecutorService workExecutor =
Executors.newCachedThreadPool(new DefaultThreadFactory("Pigeon-Netty-Client-Worker"));
private static final int bossCount =
configManager.getIntValue("pigeon.invoker.netty.bosscount", 1);
private static final int workerCount =
configManager.getIntValue(
"pigeon.invoker.netty.workercount", Runtime.getRuntime().availableProcessors() * 2);
private static ChannelFactory channelFactory =
new NioClientSocketChannelFactory(bossExecutor, workExecutor, bossCount, workerCount);
private static final int connectTimeout =
configManager.getIntValue(Constants.KEY_CONNECT_TIMEOUT, Constants.DEFAULT_CONNECT_TIMEOUT);
public int getWriteBufferHighWater() {
return configManager.getIntValue(
Constants.KEY_WRITE_BUFFER_HIGH_WATER, Constants.DEFAULT_WRITE_BUFFER_HIGH_WATER);
}
public int getWriteBufferLowWater() {
return configManager.getIntValue(
Constants.KEY_WRITE_BUFFER_LOW_WATER, Constants.DEFAULT_WRITE_BUFFER_LOW_WATER);
}
public NettyClient(ConnectInfo connectInfo) {
this.host = connectInfo.getHost();
this.port = connectInfo.getPort();
this.connectInfo = connectInfo;
this.address = host + ":" + port;
this.bootstrap = new ClientBootstrap(channelFactory);
this.bootstrap.setPipelineFactory(new NettyClientPipelineFactory(this));
this.bootstrap.setOption("tcpNoDelay", true);
this.bootstrap.setOption("keepAlive", true);
this.bootstrap.setOption("reuseAddress", true);
this.bootstrap.setOption("connectTimeoutMillis", connectTimeout);
this.bootstrap.setOption("writeBufferHighWaterMark", getWriteBufferHighWater());
this.bootstrap.setOption("writeBufferLowWaterMark", getWriteBufferLowWater());
}
public synchronized void connect() {
if (this.connected) {
return;
}
logger.info("client is connecting to " + this.host + ":" + this.port);
ChannelFuture future = null;
try {
future = bootstrap.connect(new InetSocketAddress(host, port));
if (future.awaitUninterruptibly(connectTimeout, TimeUnit.MILLISECONDS)) {
if (future.isSuccess()) {
Channel newChannel = future.getChannel();
try {
// 关闭旧的连接
Channel oldChannel = this.channel;
if (oldChannel != null) {
logger.info("close old netty channel " + oldChannel);
try {
oldChannel.close();
} catch (Throwable t) {
}
}
} finally {
this.channel = newChannel;
}
logger.info("client is connected to " + this.host + ":" + this.port);
this.connected = true;
} else {
logger.info("client is not connected to " + this.host + ":" + this.port);
}
} else {
logger.info("timeout while connecting to " + this.host + ":" + this.port);
}
} catch (Throwable e) {
logger.info("error while connecting to " + this.host + ":" + this.port, e);
}
}
@Override
public InvocationResponse doWrite(InvocationRequest request, Callback callback)
throws NetworkException {
Object[] msg = new Object[] {request, callback};
ChannelFuture future = null;
if (channel == null) {
logger.error("channel is null ^^^^^^^^^^^^^^");
} else {
try {
future = channel.write(msg);
} catch (Exception e) {
throw new NetworkException("remote call failed:" + request, e);
}
if (request.getMessageType() == Constants.MESSAGE_TYPE_SERVICE
|| request.getMessageType() == Constants.MESSAGE_TYPE_HEART) {
future.addListener(new MsgWriteListener(request));
}
}
return null;
}
public void connectionException(Object attachment, Throwable e) {
this.connected = false;
connectionException(this, attachment, e);
}
private void connectionException(Client client, Object attachment, Throwable e) {
logger.info("exception while connecting to " + client, e);
if (attachment == null) {
return;
}
Object[] msg = (Object[]) attachment;
if (msg[0] instanceof InvokerContext) {
InvokerContext invokerContext = (InvokerContext) msg[0];
InvocationRequest request = invokerContext.getRequest();
if (request.getMessageType() == Constants.MESSAGE_TYPE_SERVICE && msg[1] != null) {
try {
Callback callback = (Callback) msg[1];
if (client != null) {
client.write(request, callback);
} else {
logger.error("no client found with service:" + request.getServiceName());
}
} catch (Throwable ex) {
logger.error("", ex);
}
logger.error("", e);
}
}
}
/** @return the connected */
public boolean isConnected() {
return connected;
}
public boolean isActive() {
return active && HeartBeatListener.isActiveAddress(address);
}
public void setActive(boolean active) {
this.active = active;
}
@Override
public boolean isWritable() {
return this.channel.isWritable();
}
/** @return the host */
public String getHost() {
return host;
}
public int getPort() {
return this.port;
}
/** @return the address */
public String getAddress() {
return address;
}
public boolean equals(Object obj) {
if (obj instanceof NettyClient) {
NettyClient nc = (NettyClient) obj;
return this.address.equals(nc.getAddress());
} else {
return super.equals(obj);
}
}
@Override
public int hashCode() {
return address.hashCode();
}
@Override
public void close() {
logger.info("close client:" + this.host + ":" + this.port);
closed = true;
channel.close();
}
@Override
public String toString() {
return this.getAddress() + ", connected:" + this.isConnected() + ", active:" + this.isActive();
}
public class MsgWriteListener implements ChannelFutureListener {
private InvocationRequest request;
public MsgWriteListener(InvocationRequest request) {
this.request = request;
}
public void operationComplete(ChannelFuture future) throws Exception {
if (future.isSuccess()) {
return;
}
if (request.getMessageType() != Constants.MESSAGE_TYPE_HEART) {
connected = false;
}
InvocationResponse response = ProviderUtils.createFailResponse(request, future.getCause());
processResponse(response);
}
}
@Override
public ConnectInfo getConnectInfo() {
return connectInfo;
}
@Override
public boolean isDisposable() {
return false;
}
@Override
public void dispose() {}
@Override
public String getProtocol() {
return Constants.PROTOCOL_DEFAULT;
}
}
/** @author qi.yin 2016/09/23 上午10:31. */
public class DefaultNettyChannel implements NettyChannel {
private static final Logger logger = LoggerLoader.getLogger(NettyChannel.class);
private ReentrantLock connectLock = new ReentrantLock();
private int timeout;
private volatile Channel channel;
private ClientBootstrap bootstrap;
private InetSocketAddress localAddress;
private InetSocketAddress remoteAddress;
private String remoteAddressString;
public DefaultNettyChannel(
ClientBootstrap bootstrap, String remoteHost, int remotePort, int timeout) {
this.bootstrap = bootstrap;
this.remoteAddress = new InetSocketAddress(remoteHost, remotePort);
this.remoteAddressString = NetUtils.toAddress(remoteHost, remotePort);
this.timeout = timeout;
}
@Override
public void connect() throws NetworkException {
connectLock.lock();
try {
if (isAvaliable()) {
logger.info("[connect] is connected to remote " + remoteAddress + ".");
return;
}
ChannelFuture future = bootstrap.connect(remoteAddress);
try {
if (future.awaitUninterruptibly(timeout, TimeUnit.MILLISECONDS)) {
if (future.isSuccess()) {
disConnect();
this.channel = future.getChannel();
localAddress = (InetSocketAddress) this.channel.getLocalAddress();
} else {
logger.info("[connect] connected to remote " + remoteAddress + " failed.");
throw new NetworkException("connected to remote " + remoteAddress + " failed.");
}
} else {
logger.info("[connect] timeout connecting to remote " + remoteAddress + ".");
throw new NetworkException("timeout connecting to remote " + remoteAddress + ".");
}
} catch (Throwable e) {
logger.info("[connect] error connecting to remote " + remoteAddress + ".", e);
throw new NetworkException("error connecting to remote " + remoteAddress + ".", e);
} finally {
if (!isConnected()) {
future.cancel();
}
}
} finally {
connectLock.unlock();
}
}
@Override
public void disConnect() {
connectLock.lock();
try {
if (this.channel != null) {
this.channel.close();
}
} catch (Throwable e) {
logger.error("[disConnect] error disConnecting channel. ", e);
} finally {
connectLock.unlock();
}
}
@Override
public ChannelFuture write0(Object message) throws NetworkException {
if (!isAvaliable()) {
throw new NetworkException("[write0] channel is null or channel is close.");
}
return channel.write(message);
}
@Override
public void write(Object message) throws NetworkException {
write0(message);
}
private boolean isConnected() {
if (this.channel != null) {
return this.channel.isConnected();
}
return false;
}
@Override
public boolean isAvaliable() {
return channel != null && channel.isConnected();
}
public boolean isWritable() {
return channel.isWritable();
}
@Override
public InetSocketAddress getLocalAddress() {
return localAddress;
}
@Override
public InetSocketAddress getRemoteAddress() {
return remoteAddress;
}
@Override
public String getRemoteAddressString() {
return this.remoteAddressString;
}
public int getTimeout() {
return timeout;
}
public String toString() {
return "NettyChannel[avaliable = "
+ isAvaliable()
+ "localAddress="
+ localAddress.toString()
+ "remoteAddress= "
+ remoteAddress.toString()
+ "]";
}
}
