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com.jeesuite.kafka.spring.TopicConsumerSpringProvider Maven / Gradle / Ivy
package com.jeesuite.kafka.spring;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Properties;
import java.util.concurrent.atomic.AtomicInteger;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.Validate;
import org.apache.kafka.common.serialization.StringDeserializer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.core.Ordered;
import org.springframework.core.PriorityOrdered;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.core.io.support.ResourcePatternResolver;
import org.springframework.core.type.classreading.CachingMetadataReaderFactory;
import org.springframework.core.type.classreading.MetadataReader;
import org.springframework.core.type.classreading.MetadataReaderFactory;
import org.springframework.util.ClassUtils;
import com.jeesuite.common.util.NodeNameHolder;
import com.jeesuite.common.util.ResourceUtils;
import com.jeesuite.kafka.annotation.ConsumerHandler;
import com.jeesuite.kafka.consumer.ConsumerContext;
import com.jeesuite.kafka.consumer.NewApiTopicConsumer;
import com.jeesuite.kafka.consumer.OldApiTopicConsumer;
import com.jeesuite.kafka.consumer.TopicConsumer;
import com.jeesuite.kafka.handler.MessageHandler;
import com.jeesuite.kafka.handler.OffsetLogHanlder;
import com.jeesuite.kafka.serializer.KyroMessageDeserializer;
import com.jeesuite.kafka.utils.KafkaConst;
/**
* 消息订阅者集成spring封装对象
* @description vakin
* @date 2016年6月25日
*/
public class TopicConsumerSpringProvider implements InitializingBean, DisposableBean,ApplicationContextAware,PriorityOrdered {
private final static Logger logger = LoggerFactory.getLogger(TopicConsumerSpringProvider.class);
private ApplicationContext context;
private TopicConsumer consumer;
/**
* 配置
*/
private Properties configs;
//是否独立进程
private boolean independent;
private boolean useNewAPI = false;
private String scanPackages;
private Map topicHandlers = new HashMap<>();
private int processThreads = 200;
private String groupId;
private String consumerId;
//标记状态（0：未运行，1：启动中，2：运行中，3：停止中，4：重启中）
private AtomicInteger status = new AtomicInteger(0);
//环境路由
private String routeEnv;
private OffsetLogHanlder offsetLogHanlder;
@Override
public void afterPropertiesSet() throws Exception {
if(StringUtils.isNotBlank(scanPackages)){
String[] packages = org.springframework.util.StringUtils.tokenizeToStringArray(this.scanPackages, ConfigurableApplicationContext.CONFIG_LOCATION_DELIMITERS);
scanAndRegisterAnnotationTopics(packages);
}
Validate.isTrue(topicHandlers != null && topicHandlers.size() > 0, "at latest one topic");
//当前状态
if(status.get() > 0)return;
routeEnv = StringUtils.trimToNull(ResourceUtils.get(KafkaConst.PROP_ENV_ROUTE));
if(routeEnv != null){
logger.info("current route Env value is:",routeEnv);
Map newTopicHandlers = new HashMap<>();
for (String origTopicName : topicHandlers.keySet()) {
newTopicHandlers.put(routeEnv + "." + origTopicName, topicHandlers.get(origTopicName));
}
topicHandlers = newTopicHandlers;
}
//make sure that rebalance.max.retries * rebalance.backoff.ms > zookeeper.session.timeout.ms.
configs.put("rebalance.max.retries", "5");
configs.put("rebalance.backoff.ms", "1205");
configs.put("zookeeper.session.timeout.ms", "6000");
configs.put("key.deserializer",StringDeserializer.class.getName());
if(!configs.containsKey("value.deserializer")){
configs.put("value.deserializer", KyroMessageDeserializer.class.getName());
}
if(useNewAPI){
if("smallest".equals(configs.getProperty("auto.offset.reset"))){
configs.put("auto.offset.reset", "earliest");
}else if("largest".equals(configs.getProperty("auto.offset.reset"))){
configs.put("auto.offset.reset", "latest");
}
}else{
//强制自动提交
configs.put("enable.auto.commit", "true");
}
//同步节点信息
groupId = configs.get(org.apache.kafka.clients.consumer.ConsumerConfig.GROUP_ID_CONFIG).toString();
logger.info("\n===============KAFKA Consumer group[{}] begin start=================\n",groupId);
consumerId = NodeNameHolder.getNodeId();
//
configs.put("consumer.id", consumerId);
//kafka 内部处理 consumerId ＝ groupId + "_" + consumerId
consumerId = groupId + "_" + consumerId;
//
if(!configs.containsKey("client.id")){
configs.put("client.id", consumerId);
}
//
start();
logger.info("\n===============KAFKA Consumer group[{}],consumerId[{}] start finished!!=================\n",groupId,consumerId);
}
/**
* 启动
*/
private void start() {
if (independent) {
logger.info("KAFKA 启动模式[independent]");
new Thread(new Runnable() {
@Override
public void run() {
registerKafkaSubscriber();
}
}).start();
} else {
registerKafkaSubscriber();
}
}
/**
*
*/
@SuppressWarnings("rawtypes")
private void registerKafkaSubscriber() {
//状态：启动中
status.set(1);
Validate.notEmpty(this.configs, "configs is required");
Validate.notEmpty(this.configs.getProperty("group.id"), "kafka configs[group.id] is required");
Validate.notEmpty(this.configs.getProperty("bootstrap.servers"), "kafka configs[bootstrap.servers] is required");
StringBuffer sb = new StringBuffer();
Iterator itr = this.configs.entrySet().iterator();
while (itr.hasNext()) {
Entry e = (Entry) itr.next();
sb.append(e.getKey()).append(" = ").append(e.getValue()).append("\n");
}
logger.info("\n============kafka.Consumer.Config============\n" + sb.toString() + "\n");
ConsumerContext consumerContext = new ConsumerContext(configs, groupId, consumerId, topicHandlers, processThreads);
if(useNewAPI){
consumer = new NewApiTopicConsumer(consumerContext);
}else{
consumer = new OldApiTopicConsumer(consumerContext);
}
consumerContext.setOffsetLogHanlder(offsetLogHanlder);
consumer.start();
//状态：运行中
status.set(2);
}
/**
* kafka 配置
*
* @param configs kafka 配置
*/
public void setConfigs(Properties configs) {
this.configs = configs;
}
public void setTopicHandlers(Map topicHandlers) {
this.topicHandlers = topicHandlers;
}
public void setIndependent(boolean independent) {
this.independent = independent;
}
public void setProcessThreads(int processThreads) {
this.processThreads = processThreads;
}
public void setUseNewAPI(boolean useNewAPI) {
this.useNewAPI = useNewAPI;
}
public void setOffsetLogHanlder(OffsetLogHanlder offsetLogHanlder) {
this.offsetLogHanlder = offsetLogHanlder;
}
public void setScanPackages(String scanPackages) {
this.scanPackages = scanPackages;
}
@Override
public void destroy() throws Exception {
consumer.close();
}
private void scanAndRegisterAnnotationTopics(String[] scanBasePackages){
String RESOURCE_PATTERN = "/**/*.class";
ResourcePatternResolver resourcePatternResolver = new PathMatchingResourcePatternResolver();
for (String scanBasePackage : scanBasePackages) {
logger.info(">>begin scan package [{}] with Annotation[ConsumerHandler] MessageHanlder ",scanBasePackage);
try {
String pattern = ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX + ClassUtils.convertClassNameToResourcePath(scanBasePackage)
+ RESOURCE_PATTERN;
org.springframework.core.io.Resource[] resources = resourcePatternResolver.getResources(pattern);
MetadataReaderFactory readerFactory = new CachingMetadataReaderFactory(resourcePatternResolver);
for (org.springframework.core.io.Resource resource : resources) {
if (resource.isReadable()) {
MetadataReader reader = readerFactory.getMetadataReader(resource);
String className = reader.getClassMetadata().getClassName();
Class clazz = Class.forName(className);
if(clazz.isAnnotationPresent(ConsumerHandler.class)){
ConsumerHandler annotation = clazz.getAnnotation(ConsumerHandler.class);
MessageHandler hander = (MessageHandler) context.getBean(clazz);
if(!topicHandlers.containsKey(annotation.topic())){
topicHandlers.put(annotation.topic(), hander);
logger.info("register new MessageHandler:{}-{}",annotation.topic(),clazz.getName());
}
}
}
}
logger.info("<
