XD-3445 Fix Kafka Binder

- add autoconfiguration support and missing configuration properties
- add version in pom.xml
- fix dependency on spring-cloud-stream-binder-test

pom.xml

@@ -83,6 +83,11 @@
 				<artifactId>spring-cloud-stream-binder-rabbit</artifactId>
 				<version>${project.version}</version>
 			</dependency>
+			<dependency>
+				<groupId>org.springframework.cloud</groupId>
+				<artifactId>spring-cloud-stream-binder-kafka</artifactId>
+				<version>${project.version}</version>
+			</dependency>
 			<dependency>
 				<groupId>org.springframework.cloud</groupId>
 				<artifactId>spring-cloud-stream-binder-test</artifactId>

spring-cloud-stream-binders/spring-cloud-stream-binder-kafka/pom.xml

@@ -43,6 +43,7 @@
 		<dependency>
 			<groupId>org.springframework.cloud</groupId>
 			<artifactId>spring-cloud-stream-binder-test</artifactId>
+			<scope>test</scope>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework.integration</groupId>

spring-cloud-stream-binders/spring-cloud-stream-binder-kafka/src/main/java/org/springframework/cloud/stream/binder/kafka/config/KafkaServiceAutoConfiguration.java

@@ -0,0 +1,35 @@
+/*
+ * 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.binder.kafka.config;
+
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.boot.autoconfigure.test.ImportAutoConfiguration;
+import org.springframework.cloud.stream.binder.Binder;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.PropertySource;
+
+/**
+ * Bind to Kafka services.
+ *
+ * @author Marius Bogoevici
+ */
+@Configuration
+@ConditionalOnMissingBean(Binder.class)
+@ImportAutoConfiguration(KafkaMessageChannelBinderConfiguration.class)
+@PropertySource("classpath:/META-INF/spring-cloud-stream/kafka-binder.properties")
+public class KafkaServiceAutoConfiguration {
+}

spring-cloud-stream-binders/spring-cloud-stream-binder-kafka/src/main/java/org/springframework/cloud/stream/binder/kafka/package-info.java

@@ -0,0 +1,20 @@
+/*
+ * 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.
+ */
+
+/**
+ * This package contains an implementation of the {@link org.springframework.cloud.stream.binder.Binder} for Kafka.
+ */
+package org.springframework.cloud.stream.binder.kafka;

spring-cloud-stream-binders/spring-cloud-stream-binder-kafka/src/main/resources/META-INF/spring-cloud-stream/kafka-binder.properties

@@ -0,0 +1,23 @@
+spring.cloud.stream.binder.kafka.brokers=localhost:9092
+spring.cloud.stream.binder.kafka.zkAddress=localhost:2181
+spring.cloud.stream.binder.kafka.mode=embeddedHeaders
+spring.cloud.stream.binder.kafka.offsetStoreTopic=SpringXdOffsets
+spring.cloud.stream.binder.kafka.offsetStoreSegmentSize=25000000
+spring.cloud.stream.binder.kafka.offsetStoreRetentionTime=60000
+spring.cloud.stream.binder.kafka.offsetStoreRequiredAcks=1
+spring.cloud.stream.binder.kafka.offsetStoreMaxFetchSize=1048576
+spring.cloud.stream.binder.kafka.offsetStoreBatchBytes=16384
+spring.cloud.stream.binder.kafka.offsetStoreBatchTime=1000
+spring.cloud.stream.binder.kafka.offsetUpdateTimeWindow=10000
+spring.cloud.stream.binder.kafka.offsetUpdateCount=0
+spring.cloud.stream.binder.kafka.offsetUpdateShutdownTimeout=2000
+spring.cloud.stream.binder.kafka.default.batchSize=16384
+spring.cloud.stream.binder.kafka.default.batchTimeout=0
+spring.cloud.stream.binder.kafka.default.requiredAcks=1
+spring.cloud.stream.binder.kafka.default.replicationFactor=1
+spring.cloud.stream.binder.kafka.default.concurrency=1
+spring.cloud.stream.binder.kafka.default.compressionCodec=none
+spring.cloud.stream.binder.kafka.default.autoCommitEnabled=true
+spring.cloud.stream.binder.kafka.default.fetchSize=1048576
+spring.cloud.stream.binder.kafka.default.minPartitionCount=1
+spring.cloud.stream.binder.kafka.default.queueSize=8192

spring-cloud-stream-binders/spring-cloud-stream-binder-kafka/src/main/resources/META-INF/spring.factories

@@ -0,0 +1,2 @@
+org.springframework.boot.autoconfigure.EnableAutoConfiguration:\
+org.springframework.cloud.stream.binder.kafka.config.KafkaServiceAutoConfiguration