Polish alibaba/spring-cloud-alibaba/#1283 : Renaming spring-cloud-starter-alibaba to be spring-cloud-alibaba-starters

spring-cloud-alibaba-starters/spring-cloud-starter-bus-rocketmq/pom.xml

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+
+    <parent>
+        <groupId>com.alibaba.cloud</groupId>
+        <artifactId>spring-cloud-alibaba-starters</artifactId>
+        <version>2.2.1.BUILD-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>spring-cloud-starter-bus-rocketmq</artifactId>
+    <name>Spring Cloud Alibaba Bus RocketMQ</name>
+
+    <dependencies>
+
+        <!-- Spring Cloud Stream RocketMQ -->
+        <dependency>
+            <groupId>com.alibaba.cloud</groupId>
+            <artifactId>spring-cloud-starter-stream-rocketmq</artifactId>
+        </dependency>
+
+        <!-- Spring Cloud Bus -->
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-bus</artifactId>
+        </dependency>
+
+    </dependencies>
+
+</project>

spring-cloud-alibaba-starters/spring-cloud-starter-bus-rocketmq/src/main/java/com/alibaba/cloud/bus/rocketmq/env/RocketMQBusEnvironmentPostProcessor.java

@@ -0,0 +1,117 @@
+/*
+ * 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
+ *
+ *      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,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.alibaba.cloud.bus.rocketmq.env;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.env.EnvironmentPostProcessor;
+import org.springframework.cloud.bus.BusEnvironmentPostProcessor;
+import org.springframework.core.Ordered;
+import org.springframework.core.env.ConfigurableEnvironment;
+import org.springframework.core.env.MapPropertySource;
+import org.springframework.core.env.MutablePropertySources;
+import org.springframework.core.env.PropertySource;
+
+import static org.springframework.cloud.bus.SpringCloudBusClient.INPUT;
+
+/**
+ * The lowest precedence {@link EnvironmentPostProcessor} configures default RocketMQ Bus
+ * Properties that will be appended into {@link SpringApplication#defaultProperties}.
+ *
+ * @author <a href="mailto:mercyblitz@gmail.com">Mercy</a>
+ * @since 0.2.1
+ * @see BusEnvironmentPostProcessor
+ */
+public class RocketMQBusEnvironmentPostProcessor
+		implements EnvironmentPostProcessor, Ordered {
+
+	/**
+	 * The name of {@link PropertySource} of {@link SpringApplication#defaultProperties}.
+	 */
+	private static final String PROPERTY_SOURCE_NAME = "defaultProperties";
+
+	@Override
+	public void postProcessEnvironment(ConfigurableEnvironment environment,
+			SpringApplication application) {
+
+		addDefaultPropertySource(environment);
+
+	}
+
+	private void addDefaultPropertySource(ConfigurableEnvironment environment) {
+
+		Map<String, Object> map = new HashMap<String, Object>();
+
+		configureDefaultProperties(map);
+
+		addOrReplace(environment.getPropertySources(), map);
+	}
+
+	private void configureDefaultProperties(Map<String, Object> source) {
+		// Required Properties
+		String groupBindingPropertyName = createBindingPropertyName(INPUT, "group");
+		String broadcastingPropertyName = createRocketMQPropertyName(INPUT,
+				"broadcasting");
+		source.put(groupBindingPropertyName, "rocketmq-bus-group");
+		source.put(broadcastingPropertyName, "true");
+	}
+
+	private String createRocketMQPropertyName(String channel, String propertyName) {
+		return "spring.cloud.stream.rocketmq.bindings." + INPUT + ".consumer."
+				+ propertyName;
+	}
+
+	private String createBindingPropertyName(String channel, String propertyName) {
+		return "spring.cloud.stream.bindings." + channel + "." + propertyName;
+	}
+
+	/**
+	 * Copy from.
+	 * {@link BusEnvironmentPostProcessor#addOrReplace(MutablePropertySources, Map)}
+	 * @param propertySources {@link MutablePropertySources}
+	 * @param map Default RocketMQ Bus Properties
+	 */
+	private void addOrReplace(MutablePropertySources propertySources,
+			Map<String, Object> map) {
+		MapPropertySource target = null;
+		if (propertySources.contains(PROPERTY_SOURCE_NAME)) {
+			PropertySource<?> source = propertySources.get(PROPERTY_SOURCE_NAME);
+			if (source instanceof MapPropertySource) {
+				target = (MapPropertySource) source;
+				for (String key : map.keySet()) {
+					if (!target.containsProperty(key)) {
+						target.getSource().put(key, map.get(key));
+					}
+				}
+			}
+		}
+		if (target == null) {
+			target = new MapPropertySource(PROPERTY_SOURCE_NAME, map);
+		}
+		if (!propertySources.contains(PROPERTY_SOURCE_NAME)) {
+			propertySources.addLast(target);
+		}
+	}
+
+	@Override
+	public int getOrder() {
+		return LOWEST_PRECEDENCE;
+	}
+
+}

spring-cloud-alibaba-starters/spring-cloud-starter-bus-rocketmq/src/main/resources/META-INF/spring.factories

@@ -0,0 +1,3 @@
+# EnvironmentPostProcessor
+org.springframework.boot.env.EnvironmentPostProcessor=\
+com.alibaba.cloud.bus.rocketmq.env.RocketMQBusEnvironmentPostProcessor