Add checkstyle plugin

src/Server/build.gradle

@@ -13,6 +13,7 @@ apply plugin: 'idea'
 apply plugin: 'org.springframework.boot'
 apply plugin: 'io.spring.dependency-management'
 apply plugin: 'jacoco'
+apply plugin: 'checkstyle'
 
 bootJar {
     baseName = 'gs-rest-service'
@@ -31,6 +32,22 @@ repositories {
 sourceCompatibility = 1.8
 targetCompatibility = 1.8
 
+def configDir = "${project.rootDir}/quality"
+
+checkstyle {
+    toolVersion '7.8.1'
+    configFile file("$configDir/checkstyle/checkstyle.xml")
+    configProperties.checkstyleSuppressionsPath = file("$configDir/checkstyle/suppressions.xml").absolutePath
+}
+
+checkstyleMain {
+    source ='src/main/java'
+}
+
+checkstyleTest {
+    source ='src/test/java'
+}
+
 dependencies {
     compile("org.springframework.boot:spring-boot-starter-web")
     testCompile('org.springframework.boot:spring-boot-starter-test')