some minor cleanup (#649)

* minor cleanup pom

maven.compiler java versions as properties
only specifing spring-data-elasticsearch as dependency
formatting net.java.dev.jna dependency
grouping main/test and logging dependencies
removed unused org.springframework.data.version property

* updated logback conf to this example

* builder patttern code on multiple lines for readablilty

* autowire via constructor into final variable

as of spring-4.3 the @Autowired can be omitted \o/ jaj

* @ContextConfiguration with less config

spring-data-elasticsearch/pom.xml

@@ -11,8 +11,9 @@
 
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<maven.compiler.source>1.8</maven.compiler.source>
+		<maven.compiler.target>1.8</maven.compiler.target>
 		
-        <org.springframework.data.version>1.3.2.RELEASE</org.springframework.data.version>
 		<org.springframework.version>4.2.5.RELEASE</org.springframework.version>
         
 		<junit.version>4.11</junit.version>
@@ -27,6 +28,12 @@
 			<artifactId>spring-core</artifactId>
 			<version>${org.springframework.version}</version>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.data</groupId>
+			<artifactId>spring-data-elasticsearch</artifactId>
+			<version>${elasticsearch.version}</version>
+		</dependency>
+		
 		<dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit-dep</artifactId>
@@ -39,16 +46,13 @@
 			<version>${org.springframework.version}</version>
 			<scope>test</scope>
 		</dependency>
-		<dependency>
+		<dependency> 
-			<groupId>org.springframework.data</groupId>
+			<groupId>net.java.dev.jna</groupId> 
-			<artifactId>spring-data-elasticsearch</artifactId>
-			<version>${elasticsearch.version}</version>
-		</dependency>
-		<dependency> <groupId>net.java.dev.jna</groupId> 
 		    <artifactId>jna</artifactId> 
 		    <version>4.1.0</version> 
 		    <scope>test</scope> 
 		</dependency> 
+		
 		<dependency>
 			<groupId>org.slf4j</groupId>
 			<artifactId>slf4j-api</artifactId>
@@ -81,16 +85,5 @@
 			<version>1.2.13</version>
 		</dependency>
 	</dependencies>
-	<build>
+	
-		<plugins>
+</project>
-			<plugin>
-				<artifactId>maven-compiler-plugin</artifactId>
-				<version>2.3.2</version>
-				<configuration>
-					<source>1.8</source>
-					<target>1.8</target>
-				</configuration>
-			</plugin>
-		</plugins>
-	</build>
-</project>

spring-data-elasticsearch/src/main/java/com/baeldung/spring/data/es/config/Config.java

@@ -32,18 +32,22 @@ public class Config {
     public Client client() {
         try {
             final Path tmpDir = Files.createTempDirectory(Paths.get(System.getProperty("java.io.tmpdir")), "elasticsearch_data");
-
+            logger.debug(tmpDir.toAbsolutePath().toString());
+            
             // @formatter:off
 
             final Settings.Builder elasticsearchSettings =
                     Settings.settingsBuilder().put("http.enabled", "false")
                                               .put("path.data", tmpDir.toAbsolutePath().toString())
                                               .put("path.home", elasticsearchHome);
+            
+            return new NodeBuilder()
+                    .local(true)
+                    .settings(elasticsearchSettings)
+                    .node()
+                    .client();
+            
             // @formatter:on
-
-            logger.debug(tmpDir.toAbsolutePath().toString());
-
-            return new NodeBuilder().local(true).settings(elasticsearchSettings.build()).node().client();
         } catch (final IOException ioex) {
             logger.error("Cannot create temp dir", ioex);
             throw new RuntimeException();

spring-data-elasticsearch/src/main/java/com/baeldung/spring/data/es/service/ArticleServiceImpl.java

@@ -10,10 +10,10 @@ import org.springframework.stereotype.Service;
 @Service
 public class ArticleServiceImpl implements ArticleService {
 
-    private ArticleRepository articleRepository;
+    private final ArticleRepository articleRepository;
-
+    
     @Autowired
-    public void setArticleRepository(ArticleRepository articleRepository) {
+    public ArticleServiceImpl(ArticleRepository articleRepository) {
         this.articleRepository = articleRepository;
     }
 

spring-data-elasticsearch/src/main/resources/logback.xml

@@ -8,10 +8,10 @@
     </appender>
 
     <logger name="org.springframework" level="WARN" />
-    <logger name="com.baeldung.config" level="DEBUG" />
 
-    <!-- in order to debug some marshalling issues, this needs to be TRACE -->
+    <!-- in order to debug some elastic issues, this needs to be DEBUG or INFO -->
-    <logger name="org.springframework.web.servlet.mvc" level="WARN" />
+    <logger name="org.elasticsearch" level="INFO" />
+    <logger name="com.baeldung.spring" level="DEBUG" />
 
     <root level="INFO">
         <appender-ref ref="STDOUT" />

spring-data-elasticsearch/src/test/java/com/baeldung/spring/data/es/ElasticSearchQueryTest.java

@@ -34,7 +34,6 @@ import org.springframework.data.elasticsearch.core.query.NativeSearchQueryBuilde
 import org.springframework.data.elasticsearch.core.query.SearchQuery;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
-import org.springframework.test.context.support.AnnotationConfigContextLoader;
 
 import com.baeldung.spring.data.es.config.Config;
 import com.baeldung.spring.data.es.model.Article;
@@ -42,7 +41,7 @@ import com.baeldung.spring.data.es.model.Author;
 import com.baeldung.spring.data.es.service.ArticleService;
 
 @RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(classes = { Config.class }, loader = AnnotationConfigContextLoader.class)
+@ContextConfiguration(classes = Config.class)
 public class ElasticSearchQueryTest {
 
     @Autowired

spring-data-elasticsearch/src/test/java/com/baeldung/spring/data/es/ElasticSearchTest.java

@@ -21,7 +21,6 @@ import org.springframework.data.elasticsearch.core.query.NativeSearchQueryBuilde
 import org.springframework.data.elasticsearch.core.query.SearchQuery;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
-import org.springframework.test.context.support.AnnotationConfigContextLoader;
 
 import com.baeldung.spring.data.es.config.Config;
 import com.baeldung.spring.data.es.model.Article;
@@ -29,7 +28,7 @@ import com.baeldung.spring.data.es.model.Author;
 import com.baeldung.spring.data.es.service.ArticleService;
 
 @RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(classes = { Config.class }, loader = AnnotationConfigContextLoader.class)
+@ContextConfiguration(classes = Config.class)
 public class ElasticSearchTest {
 
     @Autowired