Code style

spring-cloud-alibaba-examples/rocketmq-example/rocketmq-produce-example/src/main/java/com/alibaba/cloud/examples/TransactionListenerImpl.java

@@ -16,11 +16,11 @@
 
 package com.alibaba.cloud.examples;
 
-
 import org.apache.rocketmq.client.producer.LocalTransactionState;
 import org.apache.rocketmq.client.producer.TransactionListener;
 import org.apache.rocketmq.common.message.Message;
 import org.apache.rocketmq.common.message.MessageExt;
+
 import org.springframework.stereotype.Component;
 
 /**
@@ -30,22 +30,18 @@ import org.springframework.stereotype.Component;
 public class TransactionListenerImpl implements TransactionListener {
 
 	@Override
-	public LocalTransactionState executeLocalTransaction(Message msg,
-														 Object arg) {
+	public LocalTransactionState executeLocalTransaction(Message msg, Object arg) {
 		Object num = msg.getProperty("test");
 
 		if ("1".equals(num)) {
-			System.out.println(
-					"executer: " + new String(msg.getBody()) + " unknown");
+			System.out.println("executer: " + new String(msg.getBody()) + " unknown");
 			return LocalTransactionState.UNKNOW;
 		}
 		else if ("2".equals(num)) {
-			System.out.println(
-					"executer: " + new String(msg.getBody()) + " rollback");
+			System.out.println("executer: " + new String(msg.getBody()) + " rollback");
 			return LocalTransactionState.ROLLBACK_MESSAGE;
 		}
-		System.out.println(
-				"executer: " + new String(msg.getBody()) + " commit");
+		System.out.println("executer: " + new String(msg.getBody()) + " commit");
 		return LocalTransactionState.COMMIT_MESSAGE;
 	}
 

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/RocketMQMessageChannelBinder.java

@@ -1,11 +1,11 @@
 /*
- * Copyright (C) 2018 the original author or authors.
+ * Copyright 2013-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -60,6 +60,7 @@ public class RocketMQMessageChannelBinder extends
 		ExtendedPropertiesBinder<MessageChannel, RocketMQConsumerProperties, RocketMQProducerProperties> {
 
 	private final RocketMQExtendedBindingProperties extendedBindingProperties;
+
 	private final RocketMQBinderConfigurationProperties binderConfigurationProperties;
 
 	public RocketMQMessageChannelBinder(
@@ -175,7 +176,6 @@ public class RocketMQMessageChannelBinder extends
 	/**
 	 * Binders can return an {@link ErrorMessageStrategy} for building error messages;
 	 * binder implementations typically might add extra headers to the error message.
-	 *
 	 * @return the implementation - may be null.
 	 */
 	@Override
@@ -203,4 +203,5 @@ public class RocketMQMessageChannelBinder extends
 	public Class<? extends BinderSpecificPropertiesProvider> getExtendedPropertiesEntryClass() {
 		return this.extendedBindingProperties.getExtendedPropertiesEntryClass();
 	}
+
 }

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/autoconfigurate/RocketMQBinderAutoConfiguration.java

@@ -34,7 +34,8 @@ import org.springframework.context.annotation.Configuration;
 import org.springframework.messaging.converter.CompositeMessageConverter;
 
 /**
- * issue:https://github.com/alibaba/spring-cloud-alibaba/issues/1681
+ * issue:https://github.com/alibaba/spring-cloud-alibaba/issues/1681 .
+ *
  * @author Timur Valiev
  * @author <a href="mailto:fangjian0423@gmail.com">Jim</a>
  */
@@ -45,6 +46,7 @@ public class RocketMQBinderAutoConfiguration {
 
 	@Autowired
 	private RocketMQExtendedBindingProperties extendedBindingProperties;
+
 	@Autowired
 	private RocketMQBinderConfigurationProperties rocketBinderConfigurationProperties;
 

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/contants/RocketMQConst.java

@@ -1,11 +1,11 @@
 /*
- * Copyright (C) 2018 the original author or authors.
+ * Copyright 2013-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -31,9 +31,11 @@ public class RocketMQConst extends MessageConst {
 	/**
 	 * Default group for SCS RocketMQ Binder.
 	 */
-	public static final String DEFAULT_GROUP =  "binder_default_group_name";
-
+	public static final String DEFAULT_GROUP = "binder_default_group_name";
 
+	/**
+	 * user args for SCS RocketMQ Binder.
+	 */
 	public static final String USER_TRANSACTIONAL_ARGS = "TRANSACTIONAL_ARGS";
 
 	/**
@@ -41,19 +43,34 @@ public class RocketMQConst extends MessageConst {
 	 * and parameters are passed through HEADERS.
 	 */
 	public static class Headers {
+
+		/**
+		 * keys for SCS RocketMQ Headers.
+		 */
 		public static final String KEYS = MessageConst.PROPERTY_KEYS;
+
+		/**
+		 * tags for SCS RocketMQ Headers.
+		 */
 		public static final String TAGS = MessageConst.PROPERTY_TAGS;
+
+		/**
+		 * topic for SCS RocketMQ Headers.
+		 */
 		public static final String TOPIC = "MQ_TOPIC";
+
 		/**
 		 * The ID of the message.
 		 */
 		public static final String MESSAGE_ID = "MQ_MESSAGE_ID";
+
 		/**
 		 * The timestamp that the message producer invokes the message sending API.
 		 */
 		public static final String BORN_TIMESTAMP = "MQ_BORN_TIMESTAMP";
+
 		/**
-		 * The IP and port number of the message producer
+		 * The IP and port number of the message producer.
 		 */
 		public static final String BORN_HOST = "MQ_BORN_HOST";
 
@@ -61,19 +78,23 @@ public class RocketMQConst extends MessageConst {
 		 * Message flag, MQ is not processed and is available for use by applications.
 		 */
 		public static final String FLAG = "MQ_FLAG";
+
 		/**
-		 * Message consumption queue ID
+		 * Message consumption queue ID.
 		 */
 		public static final String QUEUE_ID = "MQ_QUEUE_ID";
+
 		/**
 		 * Message system Flag, such as whether or not to compress, whether or not to
 		 * transactional messages.
 		 */
 		public static final String SYS_FLAG = "MQ_SYS_FLAG";
+
 		/**
 		 * The transaction ID of the transaction message.
 		 */
 		public static final String TRANSACTION_ID = "MQ_TRANSACTION_ID";
+
 	}
 
 }

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/convert/RocketMQMessageConverter.java

@@ -1,11 +1,11 @@
 /*
- * Copyright (C) 2018 the original author or authors.
+ * Copyright 2013-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -27,14 +27,19 @@ import org.springframework.messaging.converter.StringMessageConverter;
 import org.springframework.util.ClassUtils;
 
 /**
- * The default message converter of rocketMq,its bean name is {@link #DEFAULT_NAME}
+ * The default message converter of rocketMq,its bean name is {@link #DEFAULT_NAME} .
+ *
  * @author zkzlx
  */
 public class RocketMQMessageConverter {
 
+	/**
+	 * rocketMQMessageConverter.
+	 */
 	public static final String DEFAULT_NAME = "rocketMQMessageConverter";
 
 	private static final boolean JACKSON_PRESENT;
+
 	private static final boolean FASTJSON_PRESENT;
 
 	static {
@@ -81,4 +86,5 @@ public class RocketMQMessageConverter {
 	public void setMessageConverter(CompositeMessageConverter messageConverter) {
 		this.messageConverter = messageConverter;
 	}
-}
+
+}

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/custom/RocketMQBeanContainerCache.java

@@ -1,11 +1,11 @@
 /*
- * Copyright (C) 2018 the original author or authors.
+ * Copyright 2013-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -32,12 +32,15 @@ import org.springframework.messaging.converter.CompositeMessageConverter;
 import org.springframework.util.StringUtils;
 
 /**
- * Gets the beans configured in the configuration file
+ * Gets the beans configured in the configuration file.
  *
  * @author junboXiang
  */
 public final class RocketMQBeanContainerCache {
 
+	private RocketMQBeanContainerCache() {
+	}
+
 	private static final Class<?>[] CLASSES = new Class[] {
 			CompositeMessageConverter.class, AllocateMessageQueueStrategy.class,
 			MessageQueueSelector.class, MessageListener.class, TransactionListener.class,

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/custom/RocketMQConfigBeanPostProcessor.java

@@ -1,11 +1,11 @@
 /*
- * Copyright (C) 2018 the original author or authors.
+ * Copyright 2013-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -22,7 +22,7 @@ import org.springframework.beans.BeansException;
 import org.springframework.beans.factory.config.BeanPostProcessor;
 
 /**
- * find RocketMQ bean by annotations
+ * find RocketMQ bean by annotations.
  *
  * @author junboXiang
  *

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/extend/ErrorAcknowledgeHandler.java

@@ -1,11 +1,11 @@
 /*
- * Copyright (C) 2018 the original author or authors.
+ * Copyright 2013-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -27,7 +27,7 @@ public interface ErrorAcknowledgeHandler {
 	/**
 	 * Ack state handling, including receive, reject, and retry, when a consumption
 	 * exception occurs.
-	 * @param message
+	 * @param message message
 	 * @return see {@link Status}
 	 */
 	Status handler(Message<?> message);

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/integration/inbound/RocketMQConsumerFactory.java

@@ -41,6 +41,9 @@ import org.springframework.util.StringUtils;
  */
 public final class RocketMQConsumerFactory {
 
+	private RocketMQConsumerFactory() {
+	}
+
 	private final static Logger log = LoggerFactory
 			.getLogger(RocketMQConsumerFactory.class);
 
@@ -91,7 +94,8 @@ public final class RocketMQConsumerFactory {
 
 	/**
 	 * todo Compatible with versions less than 4.6 ?
-	 * @return
+	 * @param extendedConsumerProperties extendedConsumerProperties
+	 * @return DefaultLitePullConsumer
 	 */
 	public static DefaultLitePullConsumer initPullConsumer(
 			ExtendedConsumerProperties<RocketMQConsumerProperties> extendedConsumerProperties) {

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/integration/inbound/RocketMQInboundChannelAdapter.java

@@ -48,7 +48,6 @@ import org.springframework.util.Assert;
 import org.springframework.util.CollectionUtils;
 
 /**
- * TODO Describe what it does
  * @author <a href="mailto:fangjian0423@gmail.com">Jim</a>
  */
 public class RocketMQInboundChannelAdapter extends MessageProducerSupport
@@ -58,10 +57,13 @@ public class RocketMQInboundChannelAdapter extends MessageProducerSupport
 			.getLogger(RocketMQInboundChannelAdapter.class);
 
 	private RetryTemplate retryTemplate;
+
 	private RecoveryCallback<Object> recoveryCallback;
+
 	private DefaultMQPushConsumer pushConsumer;
 
 	private final String topic;
+
 	private final ExtendedConsumerProperties<RocketMQConsumerProperties> extendedConsumerProperties;
 
 	public RocketMQInboundChannelAdapter(String topic,
@@ -146,11 +148,11 @@ public class RocketMQInboundChannelAdapter extends MessageProducerSupport
 	 * The actual execution of a user-defined input consumption service method.
 	 * @param messageExtList rocket mq message list
 	 * @param failSupplier {@link ConsumeConcurrentlyStatus} or
-	 *     {@link ConsumeOrderlyStatus}
+	 * {@link ConsumeOrderlyStatus}
 	 * @param sucSupplier {@link ConsumeConcurrentlyStatus} or
-	 *     {@link ConsumeOrderlyStatus}
-	 * @param <R>
-	 * @return
+	 * {@link ConsumeOrderlyStatus}
+	 * @param <R> object
+	 * @return R
 	 */
 	private <R> R consumeMessage(List<MessageExt> messageExtList,
 			Supplier<R> failSupplier, Supplier<R> sucSupplier) {

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/integration/inbound/pull/DefaultErrorAcknowledgeHandler.java

@@ -1,11 +1,11 @@
 /*
- * Copyright (C) 2018 the original author or authors.
+ * Copyright 2013-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -29,15 +29,16 @@ import org.springframework.messaging.Message;
  * @author zkzlx
  */
 public class DefaultErrorAcknowledgeHandler implements ErrorAcknowledgeHandler {
+
 	/**
 	 * Ack state handling, including receive, reject, and retry, when a consumption
 	 * exception occurs.
-	 *
-	 * @param message
+	 * @param message message
 	 * @return see {@link Status}
 	 */
 	@Override
 	public Status handler(Message<?> message) {
 		return Status.REQUEUE;
 	}
+
 }

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/integration/inbound/pull/RocketMQAckCallback.java

@@ -1,11 +1,11 @@
 /*
- * Copyright (C) 2018 the original author or authors.
+ * Copyright 2013-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -31,16 +31,23 @@ import org.springframework.util.Assert;
 
 /**
  * A pollable {@link org.springframework.integration.core.MessageSource} for RocketMQ.
+ *
  * @author zkzlx
  */
 public class RocketMQAckCallback implements AcknowledgmentCallback {
+
 	private final static Logger log = LoggerFactory.getLogger(RocketMQAckCallback.class);
 
 	private boolean acknowledged;
+
 	private boolean autoAckEnabled = true;
+
 	private MessageExt messageExt;
+
 	private AssignedMessageQueue assignedMessageQueue;
+
 	private DefaultLitePullConsumer consumer;
+
 	private final MessageQueue messageQueue;
 
 	public RocketMQAckCallback(DefaultLitePullConsumer consumer,
@@ -109,4 +116,4 @@ public class RocketMQAckCallback implements AcknowledgmentCallback {
 		}
 	}
 
-}
+}

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/integration/inbound/pull/RocketMQMessageSource.java

@@ -56,14 +56,18 @@ public class RocketMQMessageSource extends AbstractMessageSource<Object>
 			.getLogger(RocketMQMessageSource.class);
 
 	private DefaultLitePullConsumer consumer;
+
 	private AssignedMessageQueue assignedMessageQueue;
+
 	private volatile boolean running;
 
 	private final String topic;
+
 	private final MessageSelector messageSelector;
+
 	private final ExtendedConsumerProperties<RocketMQConsumerProperties> extendedConsumerProperties;
 
-	private volatile Iterator<MessageExt> messageExtIterator=null;
+	private volatile Iterator<MessageExt> messageExtIterator = null;
 
 	public RocketMQMessageSource(String name,
 			ExtendedConsumerProperties<RocketMQConsumerProperties> extendedConsumerProperties) {
@@ -85,7 +89,7 @@ public class RocketMQMessageSource extends AbstractMessageSource<Object>
 			this.consumer = RocketMQConsumerFactory
 					.initPullConsumer(extendedConsumerProperties);
 			// This parameter must be 1, otherwise doReceive cannot be handled singly.
-//			this.consumer.setPullBatchSize(1);
+			// this.consumer.setPullBatchSize(1);
 			this.consumer.subscribe(topic, messageSelector);
 			this.consumer.setAutoCommit(false);
 			this.assignedMessageQueue = acquireAssignedMessageQueue(this.consumer);
@@ -135,18 +139,18 @@ public class RocketMQMessageSource extends AbstractMessageSource<Object>
 
 	@Override
 	protected synchronized Object doReceive() {
-		if(messageExtIterator == null){
+		if (messageExtIterator == null) {
 			List<MessageExt> messageExtList = consumer.poll();
 			if (CollectionUtils.isEmpty(messageExtList) || messageExtList.size() > 1) {
 				return null;
 			}
 			messageExtIterator = messageExtList.iterator();
 		}
-		MessageExt messageExt=messageExtIterator.next();
-		if(!messageExtIterator.hasNext()){
+		MessageExt messageExt = messageExtIterator.next();
+		if (!messageExtIterator.hasNext()) {
 			messageExtIterator = null;
 		}
-		if(null == messageExt){
+		if (null == messageExt) {
 			return null;
 		}
 		MessageQueue messageQueue = null;
@@ -156,8 +160,9 @@ public class RocketMQMessageSource extends AbstractMessageSource<Object>
 				break;
 			}
 		}
-		if(messageQueue == null){
-			throw new IllegalArgumentException("The message queue is not in assigned list");
+		if (messageQueue == null) {
+			throw new IllegalArgumentException(
+					"The message queue is not in assigned list");
 		}
 		Message message = RocketMQMessageConverterSupport
 				.convertMessage2Spring(messageExt);

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/integration/outbound/RocketMQProduceFactory.java

@@ -39,18 +39,23 @@ import org.springframework.util.Assert;
 import org.springframework.util.StringUtils;
 
 /**
- * Extended function related to producer . eg:initial
+ * Extended function related to producer . eg:initial .
  *
  * @author zkzlx
  */
 public final class RocketMQProduceFactory {
 
+	private RocketMQProduceFactory() {
+	}
+
 	private final static Logger log = LoggerFactory
 			.getLogger(RocketMQProduceFactory.class);
 
 	/**
 	 * init for the producer,including convert producer params.
-	 * @return
+	 * @param topic topic
+	 * @param producerProperties producerProperties
+	 * @return DefaultMQProducer
 	 */
 	public static DefaultMQProducer initRocketMQProducer(String topic,
 			RocketMQProducerProperties producerProperties) {

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/integration/outbound/RocketMQProducerMessageHandler.java

@@ -1,11 +1,11 @@
 /*
- * Copyright (C) 2018 the original author or authors.
+ * Copyright 2013-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -61,16 +61,23 @@ public class RocketMQProducerMessageHandler extends AbstractMessageHandler
 			.getLogger(RocketMQProducerMessageHandler.class);
 
 	private volatile boolean running = false;
+
 	private volatile boolean isTrans = false;
 
 	private ErrorMessageStrategy errorMessageStrategy;
+
 	private MessageChannel sendFailureChannel;
+
 	private MessageConverterConfigurer.PartitioningInterceptor partitioningInterceptor;
+
 	private DefaultMQProducer defaultMQProducer;
+
 	private MessageQueueSelector messageQueueSelector;
 
 	private final ProducerDestination destination;
+
 	private final ExtendedProducerProperties<RocketMQProducerProperties> extendedProducerProperties;
+
 	private final RocketMQProducerProperties mqProducerProperties;
 
 	public RocketMQProducerMessageHandler(ProducerDestination destination,
@@ -93,10 +100,8 @@ public class RocketMQProducerMessageHandler extends AbstractMessageHandler
 		// Use the default if the partition is on and no customization is available.
 		this.messageQueueSelector = RocketMQBeanContainerCache.getBean(
 				mqProducerProperties.getMessageQueueSelector(),
-				MessageQueueSelector.class,
-				extendedProducerProperties.isPartitioned()
-						? new PartitionMessageQueueSelector()
-						: null);
+				MessageQueueSelector.class, extendedProducerProperties.isPartitioned()
+						? new PartitionMessageQueueSelector() : null);
 	}
 
 	@Override
@@ -226,9 +231,9 @@ public class RocketMQProducerMessageHandler extends AbstractMessageHandler
 	}
 
 	/**
-	 * https://github.com/alibaba/spring-cloud-alibaba/issues/1408
-	 * @param message
-	 * @return
+	 * https://github.com/alibaba/spring-cloud-alibaba/issues/1408 .
+	 * @param message message
+	 * @return SendCallback
 	 */
 	private SendCallback getSendCallback(Message<?> message) {
 		SendCallback sendCallback = RocketMQBeanContainerCache
@@ -283,4 +288,5 @@ public class RocketMQProducerMessageHandler extends AbstractMessageHandler
 		this.partitioningInterceptor = partitioningInterceptor;
 		return this;
 	}
+
 }

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/metrics/Instrumentation.java

@@ -28,6 +28,7 @@ import org.springframework.context.Lifecycle;
 public class Instrumentation {
 
 	private final String name;
+
 	private Lifecycle actuator;
 
 	protected final AtomicBoolean started = new AtomicBoolean(false);
@@ -88,4 +89,17 @@ public class Instrumentation {
 	public int hashCode() {
 		return Objects.hash(getName(), getActuator());
 	}
+
+	@Override
+	public boolean equals(Object o) {
+		if (this == o) {
+			return true;
+		}
+		if (o == null || getClass() != o.getClass()) {
+			return false;
+		}
+		Instrumentation that = (Instrumentation) o;
+		return name.equals(that.name) && actuator.equals(that.actuator);
+	}
+
 }

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/metrics/InstrumentationManager.java

@@ -26,6 +26,9 @@ import java.util.Map;
  */
 public final class InstrumentationManager {
 
+	private InstrumentationManager() {
+	}
+
 	private static final Map<Integer, Instrumentation> HEALTH_INSTRUMENTATIONS = new HashMap<>();
 
 	public static Collection<Instrumentation> getHealthInstrumentations() {

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/properties/RocketMQBinderConfigurationProperties.java

@@ -1,11 +1,11 @@
 /*
- * Copyright (C) 2018 the original author or authors.
+ * Copyright 2013-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -20,6 +20,7 @@ import org.springframework.boot.context.properties.ConfigurationProperties;
 
 /**
  * binding rocketMq properties.
+ *
  * @author <a href="mailto:fangjian0423@gmail.com">Jim</a>
  */
 @ConfigurationProperties(prefix = "spring.cloud.stream.rocketmq.binder")

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/properties/RocketMQCommonProperties.java

@@ -1,11 +1,11 @@
 /*
- * Copyright (C) 2018 the original author or authors.
+ * Copyright 2013-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -26,6 +26,7 @@ import org.apache.rocketmq.remoting.netty.TlsSystemConfig;
  * @author zkzlx
  */
 public class RocketMQCommonProperties implements Serializable {
+
 	private static final long serialVersionUID = -6724870154343284715L;
 
 	private boolean enabled = true;
@@ -41,38 +42,36 @@ public class RocketMQCommonProperties implements Serializable {
 	 * The property of "secret-key".
 	 */
 	private String secretKey;
+
 	/**
 	 * Consumers of the same role is required to have exactly same subscriptions and
 	 * consumerGroup to correctly achieve load balance. It's required and needs to be
-	 * globally unique.
-	 * </p>
-	 * Producer group conceptually aggregates all producer instances of exactly same role,
-	 * which is particularly important when transactional messages are involved.
-	 * </p>
-	 * <p>
-	 * For non-transactional messages, it does not matter as long as it's unique per
-	 * process.
-	 * </p>
-	 * <p>
-	 * See <a href="http://rocketmq.apache.org/docs/core-concept/">here</a> for further
-	 * discussion.
+	 * globally unique. Producer group conceptually aggregates all producer instances of
+	 * exactly same role, which is particularly important when transactional messages are
+	 * involved. For non-transactional messages, it does not matter as long as it's unique
+	 * per process. See <a href="http://rocketmq.apache.org/docs/core-concept/">here</a>
+	 * for further discussion.
 	 */
 	private String group;
 
 	private String namespace;
+
 	private String accessChannel = AccessChannel.LOCAL.name();
+
 	/**
 	 * Pulling topic information interval from the named server.
 	 * see{@link MQClientInstance#startScheduledTask()},eg:ScheduledTask
 	 * updateTopicRouteInfoFromNameServer.
 	 */
 	private int pollNameServerInterval = 1000 * 30;
+
 	/**
 	 * Heartbeat interval in microseconds with message broker.
 	 * see{@link MQClientInstance#startScheduledTask()},eg:ScheduledTask
 	 * sendHeartbeatToAllBroker .
 	 */
 	private int heartbeatBrokerInterval = 1000 * 30;
+
 	/**
 	 * Offset persistent interval for consumer.
 	 * see{@link MQClientInstance#startScheduledTask()},eg:ScheduledTask
@@ -85,6 +84,7 @@ public class RocketMQCommonProperties implements Serializable {
 	private boolean useTLS = TlsSystemConfig.tlsEnable;
 
 	private boolean enableMsgTrace = true;
+
 	private String customizedTraceTopic;
 
 	public boolean getEnabled() {
@@ -198,4 +198,5 @@ public class RocketMQCommonProperties implements Serializable {
 	public void setCustomizedTraceTopic(String customizedTraceTopic) {
 		this.customizedTraceTopic = customizedTraceTopic;
 	}
+
 }

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/properties/RocketMQConsumerProperties.java

@@ -1,11 +1,11 @@
 /*
- * Copyright (C) 2018 the original author or authors.
+ * Copyright 2013-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -37,8 +37,6 @@ public class RocketMQConsumerProperties extends RocketMQCommonProperties {
 
 	/**
 	 * Message model defines the way how messages are delivered to each consumer clients.
-	 * </p>
-	 *
 	 * This field defaults to clustering.
 	 */
 	private String messageModel = MessageModel.CLUSTERING.getModeCN();
@@ -60,13 +58,12 @@ public class RocketMQConsumerProperties extends RocketMQCommonProperties {
 	private String subscription;
 
 	/**
-	 * Delay some time when exception occur
+	 * Delay some time when exception occur .
 	 */
 	private long pullTimeDelayMillsWhenException = 1000;
 
 	/**
 	 * Consuming point on consumer booting.
-	 * </p>
 	 *
 	 * There are three consuming points:
 	 * <ul>
@@ -90,6 +87,7 @@ public class RocketMQConsumerProperties extends RocketMQCommonProperties {
 	 * </ul>
 	 */
 	private ConsumeFromWhere consumeFromWhere = ConsumeFromWhere.CONSUME_FROM_LAST_OFFSET;
+
 	/**
 	 * Backtracking consumption time with second precision. Time format is
 	 * 20131223171201<br>
@@ -102,13 +100,14 @@ public class RocketMQConsumerProperties extends RocketMQCommonProperties {
 	/**
 	 * Flow control threshold on queue level, each message queue will cache at most 1000
 	 * messages by default, Consider the {@link #pullBatchSize}, the instantaneous value
-	 * may exceed the limit
+	 * may exceed the limit .
 	 */
 	private int pullThresholdForQueue = 1000;
+
 	/**
 	 * Limit the cached message size on queue level, each message queue will cache at most
 	 * 100 MiB messages by default, Consider the {@link #pullBatchSize}, the instantaneous
-	 * value may exceed the limit
+	 * value may exceed the limit .
 	 *
 	 * <p>
 	 * The size of a message only measured by message body, so it's not accurate
@@ -126,6 +125,7 @@ public class RocketMQConsumerProperties extends RocketMQCommonProperties {
 	private int consumeMaxSpan = 2000;
 
 	private Push push = new Push();
+
 	private Pull pull = new Pull();
 
 	public String getMessageModel() {
@@ -238,6 +238,7 @@ public class RocketMQConsumerProperties extends RocketMQCommonProperties {
 	}
 
 	public static class Push implements Serializable {
+
 		private static final long serialVersionUID = -7398468554978817630L;
 
 		/**
@@ -245,6 +246,7 @@ public class RocketMQConsumerProperties extends RocketMQCommonProperties {
 		 * false, using {@link MessageListenerConcurrently}.
 		 */
 		private boolean orderly = false;
+
 		/**
 		 * Suspending pulling time for cases requiring slow pulling like flow-control
 		 * scenario. see{@link ConsumeMessageOrderlyService#processConsumeResult}.
@@ -254,10 +256,9 @@ public class RocketMQConsumerProperties extends RocketMQCommonProperties {
 
 		/**
 		 * https://github.com/alibaba/spring-cloud-alibaba/issues/1866 Max re-consume
-		 * times. -1 means 16 times.
-		 * </p>
-		 * If messages are re-consumed more than {@link #maxReconsumeTimes} before
-		 * success, it's be directed to a deletion queue waiting.
+		 * times. -1 means 16 times. If messages are re-consumed more than
+		 * {@link #maxReconsumeTimes} before success, it's be directed to a deletion queue
+		 * waiting.
 		 */
 		private int maxReconsumeTimes;
 
@@ -285,21 +286,21 @@ public class RocketMQConsumerProperties extends RocketMQCommonProperties {
 		 * MiB(Unlimited)
 		 * <p>
 		 * The value of {@code pullThresholdSizeForQueue} will be overwrote and calculated
-		 * based on {@code pullThresholdSizeForTopic} if it is't unlimited
+		 * based on {@code pullThresholdSizeForTopic} if it is't unlimited .
 		 * <p>
 		 * For example, if the value of pullThresholdSizeForTopic is 1000 MiB and 10
 		 * message queues are assigned to this consumer, then pullThresholdSizeForQueue
-		 * will be set to 100 MiB
+		 * will be set to 100 MiB .
 		 */
 		private int pullThresholdSizeForTopic = -1;
 
 		/**
-		 * Message pull Interval
+		 * Message pull Interval.
 		 */
 		private long pullInterval = 0;
 
 		/**
-		 * Batch consumption size
+		 * Batch consumption size.
 		 */
 		private int consumeMessageBatchMaxSize = 1;
 
@@ -366,15 +367,18 @@ public class RocketMQConsumerProperties extends RocketMQCommonProperties {
 		public void setConsumeMessageBatchMaxSize(int consumeMessageBatchMaxSize) {
 			this.consumeMessageBatchMaxSize = consumeMessageBatchMaxSize;
 		}
+
 	}
 
 	public static class Pull implements Serializable {
+
 		/**
-		 * The poll timeout in milliseconds
+		 * The poll timeout in milliseconds.
 		 */
 		private long pollTimeoutMillis = 1000 * 5;
+
 		/**
-		 * Pull thread number
+		 * Pull thread number.
 		 */
 		private int pullThreadNums = 20;
 
@@ -385,13 +389,13 @@ public class RocketMQConsumerProperties extends RocketMQCommonProperties {
 
 		/**
 		 * Long polling mode, the Consumer connection timeout(must greater than
-		 * brokerSuspendMaxTimeMillis), it is not recommended to modify
+		 * brokerSuspendMaxTimeMillis), it is not recommended to modify.
 		 */
 		private long consumerTimeoutMillisWhenSuspend = 1000 * 30;
 
 		/**
 		 * Ack state handling, including receive, reject, and retry, when a consumption
-		 * exception occurs. see {@link }
+		 * exception occurs.
 		 */
 		private String errAcknowledge;
 
@@ -446,6 +450,7 @@ public class RocketMQConsumerProperties extends RocketMQCommonProperties {
 		public void setPullThresholdForAll(long pullThresholdForAll) {
 			this.pullThresholdForAll = pullThresholdForAll;
 		}
+
 	}
 
 }

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/properties/RocketMQExtendedBindingProperties.java

@@ -1,11 +1,11 @@
 /*
- * Copyright (C) 2018 the original author or authors.
+ * Copyright 2013-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/properties/RocketMQProducerProperties.java

@@ -1,11 +1,11 @@
 /*
- * Copyright (C) 2018 the original author or authors.
+ * Copyright 2013-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -37,7 +37,6 @@ public class RocketMQProducerProperties extends RocketMQCommonProperties {
 	/**
 	 * Maximum number of retry to perform internally before claiming sending failure in
 	 * synchronous mode.
-	 * </p>
 	 *
 	 * This may potentially cause message duplication which is up to application
 	 * developers to resolve.
@@ -47,7 +46,6 @@ public class RocketMQProducerProperties extends RocketMQCommonProperties {
 	/**
 	 * Maximum number of retry to perform internally before claiming sending failure in
 	 * asynchronous mode.
-	 * </p>
 	 *
 	 * This may potentially cause message duplication which is up to application
 	 * developers to resolve.
@@ -203,19 +201,41 @@ public class RocketMQProducerProperties extends RocketMQCommonProperties {
 	}
 
 	public enum ProducerType {
-		Normal, Trans;
+
+		/**
+		 * Is not a transaction.
+		 */
+		Normal,
+		/**
+		 * a transaction.
+		 */
+		Trans;
 
 		public boolean equalsName(String name) {
 			return this.name().equalsIgnoreCase(name);
 		}
+
 	}
 
 	public enum SendType {
-		OneWay, Async, Sync,;
+
+		/**
+		 * one way.
+		 */
+		OneWay,
+		/**
+		 * Asynchronization Model.
+		 */
+		Async,
+		/**
+		 * synchronization.
+		 */
+		Sync,;
 
 		public boolean equalsName(String name) {
 			return this.name().equalsIgnoreCase(name);
 		}
+
 	}
 
 }

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/properties/RocketMQSpecificPropertiesProvider.java

@@ -1,11 +1,11 @@
 /*
- * Copyright (C) 2018 the original author or authors.
+ * Copyright 2013-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/support/RocketMQMessageConverterSupport.java

@@ -1,11 +1,11 @@
 /*
- * Copyright (C) 2018 the original author or authors.
+ * Copyright 2013-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -36,10 +36,12 @@ import org.springframework.util.MimeTypeUtils;
 import org.springframework.util.StringUtils;
 
 /**
- *
  * @author zkzlx
  */
-public class RocketMQMessageConverterSupport {
+public final class RocketMQMessageConverterSupport {
+
+	private RocketMQMessageConverterSupport() {
+	}
 
 	private static final CompositeMessageConverter MESSAGE_CONVERTER = RocketMQBeanContainerCache
 			.getBean(RocketMQMessageConverter.DEFAULT_NAME,

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/main/java/com/alibaba/cloud/stream/binder/rocketmq/utils/RocketMQUtils.java

@@ -1,11 +1,11 @@
 /*
- * Copyright (C) 2018 the original author or authors.
+ * Copyright 2013-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *      https://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -28,11 +28,12 @@ import org.apache.rocketmq.remoting.RPCHook;
 import org.springframework.util.StringUtils;
 
 /**
- * TODO Describe what it does
- *
  * @author <a href="mailto:fangjian0423@gmail.com">Jim</a>
  */
-public class RocketMQUtils {
+public final class RocketMQUtils {
+
+	private RocketMQUtils() {
+	}
 
 	public static <T extends RocketMQCommonProperties> T mergeRocketMQProperties(
 			RocketMQBinderConfigurationProperties binderConfigurationProperties,

spring-cloud-alibaba-starters/spring-cloud-starter-stream-rocketmq/src/test/java/com/alibaba/cloud/stream/binder/rocketmq/RocketMQAutoConfigurationTests.java

@@ -16,8 +16,6 @@
 
 package com.alibaba.cloud.stream.binder.rocketmq;
 
-import java.util.Arrays;
-
 import com.alibaba.cloud.stream.binder.rocketmq.autoconfigurate.RocketMQBinderAutoConfiguration;
 import com.alibaba.cloud.stream.binder.rocketmq.properties.RocketMQBinderConfigurationProperties;
 import com.alibaba.cloud.stream.binder.rocketmq.properties.RocketMQExtendedBindingProperties;
@@ -61,13 +59,12 @@ public class RocketMQAutoConfigurationTests {
 					.isEqualTo("127.0.0.1:9876,127.0.0.1:9877");
 			RocketMQExtendedBindingProperties bindingProperties = context
 					.getBean(RocketMQExtendedBindingProperties.class);
-			assertThat(
-					bindingProperties.getExtendedConsumerProperties("input2").getSubscription())
-							.isEqualTo("tag1");
-			assertThat(bindingProperties.getExtendedConsumerProperties("input2").getPush().getOrderly()
-					).isFalse();
-			assertThat(bindingProperties.getExtendedConsumerProperties("input1")
-					.getPush().getOrderly()).isTrue();
+			assertThat(bindingProperties.getExtendedConsumerProperties("input2")
+					.getSubscription()).isEqualTo("tag1");
+			assertThat(bindingProperties.getExtendedConsumerProperties("input2").getPush()
+					.getOrderly()).isFalse();
+			assertThat(bindingProperties.getExtendedConsumerProperties("input1").getPush()
+					.getOrderly()).isTrue();
 		});
 	}