XD-3270 initial ModuleRegistry port and refactor

spring-cloud-stream-module-launcher/pom.xml

@@ -20,6 +20,10 @@
 	</properties>
 
 	<dependencies>
+		<dependency>
+			<groupId>org.springframework</groupId>
+			<artifactId>spring-core</artifactId>
+		</dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-loader</artifactId>

spring-cloud-stream-module-launcher/src/main/java/org/springframework/cloud/stream/module/resolver/ModuleResolver.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2015 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
+ *
+ * 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 org.springframework.cloud.stream.module.resolver;
+
+import org.springframework.core.io.Resource;
+
+/**
+ * Interface used to retrieve a Module uber-jar from a remote or local repository.
+ * @author David Turanski
+ */
+public interface ModuleResolver {
+	/**
+	 * Retrieve a resource given its coordinates.
+	 * @param groupId the groupId
+	 * @param artifactId the artifactId
+	 * @param version the version
+	 * @return the resource
+	 */
+	public Resource resolve(String groupId, String artifactId, String version);
+}

spring-cloud-stream-module-launcher/src/main/java/org/springframework/cloud/stream/module/resolver/package-info.java

@@ -0,0 +1,5 @@
+/**
+ * Root package of the Module support.
+ */
+
+package org.springframework.cloud.stream.module.resolver;