Simplify project structure

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

Resolves: #1447

spring-session-samples/spring-session-sample-xml-jdbc/src/main/java/sample/SessionServlet.java

@@ -0,0 +1,40 @@
+/*
+ * 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.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+// tag::class[]
+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;
+}
+
+// end::class[]

spring-session-samples/spring-session-sample-xml-jdbc/src/main/resources/logback.xml

@@ -0,0 +1,14 @@
+<configuration>
+	<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+	<encoder>
+		<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
+	</encoder>
+	</appender>
+
+	<!-- <logger name="org.springframework.security" level="DEBUG"/> -->
+
+	<root level="INFO">
+	<appender-ref ref="STDOUT" />
+	</root>
+
+</configuration>

spring-session-samples/spring-session-sample-xml-jdbc/src/main/webapp/WEB-INF/spring/session.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xmlns:context="http://www.springframework.org/schema/context"
+	xmlns:jdbc="http://www.springframework.org/schema/jdbc"
+	xsi:schemaLocation="http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd
+		http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd
+		http://www.springframework.org/schema/jdbc https://www.springframework.org/schema/jdbc/spring-jdbc.xsd">
+
+	<!-- tag::beans[] -->
+
+	<!--1-->
+	<context:annotation-config/>
+	<bean class="org.springframework.session.jdbc.config.annotation.web.http.JdbcHttpSessionConfiguration"/>
+
+	<!--2-->
+	<jdbc:embedded-database id="dataSource" database-name="testdb" type="H2">
+		<jdbc:script location="classpath:org/springframework/session/jdbc/schema-h2.sql"/>
+	</jdbc:embedded-database>
+
+	<!--3-->
+	<bean class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
+		<constructor-arg ref="dataSource"/>
+	</bean>
+	<!-- end::beans[] -->
+</beans>

spring-session-samples/spring-session-sample-xml-jdbc/src/main/webapp/WEB-INF/web.xml

@@ -0,0 +1,67 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"
+		xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+		xsi:schemaLocation="http://java.sun.com/xml/ns/javaee https://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
+	<!--
+	- Location of the XML file that defines the root application context
+	- Applied by ContextLoaderListener.
+	-->
+	<!-- tag::context-param[] -->
+	<context-param>
+		<param-name>contextConfigLocation</param-name>
+		<param-value>
+			/WEB-INF/spring/session.xml
+		</param-value>
+	</context-param>
+	<!-- end::context-param[] -->
+
+	<!-- tag::springSessionRepositoryFilter[] -->
+	<filter>
+		<filter-name>springSessionRepositoryFilter</filter-name>
+		<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
+	</filter>
+	<filter-mapping>
+		<filter-name>springSessionRepositoryFilter</filter-name>
+		<url-pattern>/*</url-pattern>
+		<dispatcher>REQUEST</dispatcher>
+		<dispatcher>ERROR</dispatcher>
+	</filter-mapping>
+	<!-- end::springSessionRepositoryFilter[] -->
+
+	<!--
+	- Loads the root application context of this web app at startup.
+	- The application context is then available via
+	- WebApplicationContextUtils.getWebApplicationContext(servletContext).
+	-->
+	<!-- tag::listeners[] -->
+	<listener>
+		<listener-class>
+			org.springframework.web.context.ContextLoaderListener
+		</listener-class>
+	</listener>
+	<!-- end::listeners[] -->
+
+	<servlet>
+		<servlet-name>session</servlet-name>
+		<servlet-class>sample.SessionServlet</servlet-class>
+	</servlet>
+
+	<servlet-mapping>
+		<servlet-name>session</servlet-name>
+		<url-pattern>/session</url-pattern>
+	</servlet-mapping>
+
+	<servlet>
+		<servlet-name>h2Console</servlet-name>
+		<servlet-class>org.h2.server.web.WebServlet</servlet-class>
+	</servlet>
+
+	<servlet-mapping>
+		<servlet-name>h2Console</servlet-name>
+		<url-pattern>/h2-console/*</url-pattern>
+	</servlet-mapping>
+
+	<welcome-file-list>
+		<welcome-file>index.jsp</welcome-file>
+	</welcome-file-list>
+</web-app>

spring-session-samples/spring-session-sample-xml-jdbc/src/main/webapp/index.jsp

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+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+<%@ taglib prefix="wj" uri="http://www.webjars.org/tags" %>
+<!DOCTYPE html>
+<html lang="en">
+<head>
+	<title>Session Attributes</title>
+	<wj:locate path="bootstrap.min.css" relativeTo="META-INF/resources" var="bootstrapCssLocation"/>
+	<link rel="stylesheet" href="<c:url value="${bootstrapCssLocation}"/>">
+	<style type="text/css">
+		body {
+			padding: 1em;
+		}
+	</style>
+</head>
+<body>
+	<div class="container">
+		<h1>Description</h1>
+		<p>This application demonstrates how to use a relational database to back your session. Notice that there is no JSESSIONID cookie. We are also able to customize the way of identifying what the requested session id is.</p>
+
+		<h1>Try it</h1>
+
+		<form class="form-inline" role="form" action="./session" method="post">
+			<label for="attributeName">Attribute Name</label>
+			<input id="attributeName" type="text" name="attributeName"/>
+			<label for="attributeValue">Attribute Value</label>
+			<input id="attributeValue" type="text" name="attributeValue"/>
+			<input type="submit" value="Set Attribute"/>
+		</form>
+
+		<hr/>
+
+		<table class="table table-striped">
+			<thead>
+			<tr>
+				<th>Attribute Name</th>
+				<th>Attribute Value</th>
+			</tr>
+			</thead>
+			<tbody>
+			<c:forEach items="${sessionScope}" var="attr">
+				<tr>
+					<td><c:out value="${attr.key}"/></td>
+					<td><c:out value="${attr.value}"/></td>
+				</tr>
+			</c:forEach>
+			</tbody>
+		</table>
+	</div>
+</body>
+</html>