Simplify project structure

- harmonize module and directory names
- optimize Gradle settings
- remove unused Grails sample

Resolves: #1447

spring-session-samples/spring-session-sample-javaconfig-custom-cookie/src/main/java/sample/Config.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright 2014-2017 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 sample;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Import;
+import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
+import org.springframework.session.data.redis.config.annotation.web.http.EnableRedisHttpSession;
+import org.springframework.session.web.http.CookieSerializer;
+import org.springframework.session.web.http.DefaultCookieSerializer;
+
+@Import(EmbeddedRedisConfig.class)
+@EnableRedisHttpSession
+public class Config {
+
+	@Bean
+	public LettuceConnectionFactory connectionFactory() {
+		return new LettuceConnectionFactory();
+	}
+
+	// tag::cookie-serializer[]
+	@Bean
+	public CookieSerializer cookieSerializer() {
+		DefaultCookieSerializer serializer = new DefaultCookieSerializer();
+		serializer.setCookieName("JSESSIONID"); // <1>
+		serializer.setCookiePath("/"); // <2>
+		serializer.setDomainNamePattern("^.+?\\.(\\w+\\.[a-z]+)$"); // <3>
+		return serializer;
+	}
+	// end::cookie-serializer[]
+}

spring-session-samples/spring-session-sample-javaconfig-custom-cookie/src/main/java/sample/EmbeddedRedisConfig.java

@@ -0,0 +1,48 @@
+/*
+ * Copyright 2014-2019 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 sample;
+
+import org.testcontainers.containers.GenericContainer;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Primary;
+import org.springframework.context.annotation.Profile;
+import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
+
+@Configuration
+@Profile("embedded-redis")
+public class EmbeddedRedisConfig {
+
+	private static final String DOCKER_IMAGE = "redis:5.0.5";
+
+	@Bean
+	public GenericContainer redisContainer() {
+		GenericContainer redisContainer = new GenericContainer(DOCKER_IMAGE)
+				.withExposedPorts(6379);
+		redisContainer.start();
+		return redisContainer;
+	}
+
+	@Bean
+	@Primary
+	public LettuceConnectionFactory redisConnectionFactory() {
+		return new LettuceConnectionFactory(redisContainer().getContainerIpAddress(),
+				redisContainer().getFirstMappedPort());
+	}
+
+}

spring-session-samples/spring-session-sample-javaconfig-custom-cookie/src/main/java/sample/Initializer.java

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2014-2016 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 sample;
+
+import org.springframework.session.web.context.AbstractHttpSessionApplicationInitializer;
+
+// tag::class[]
+public class Initializer extends AbstractHttpSessionApplicationInitializer { // <1>
+
+	public Initializer() {
+		super(Config.class); // <2>
+	}
+}
+// end::class[]

spring-session-samples/spring-session-sample-javaconfig-custom-cookie/src/main/java/sample/SessionServlet.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2014-2016 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 sample;
+
+import java.io.IOException;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+// tag::class[]
+@WebServlet("/session")
+public class SessionServlet extends HttpServlet {
+
+	@Override
+	protected void doPost(HttpServletRequest req, HttpServletResponse resp)
+			throws ServletException, IOException {
+		String attributeName = req.getParameter("attributeName");
+		String attributeValue = req.getParameter("attributeValue");
+		req.getSession().setAttribute(attributeName, attributeValue);
+		resp.sendRedirect(req.getContextPath() + "/");
+	}
+
+	private static final long serialVersionUID = 2878267318695777395L;
+}
+// tag::end[]