Add sample demonstrating the use of Spring Session with Gfsh started Apache Geode servers configured with DataSerialization.
Resolve gh-11.
This commit is contained in:
John Blum
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import org.apache.tools.ant.filters.ReplaceTokens
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apply plugin: 'io.spring.convention.spring-sample-boot'
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dependencies {
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compile project(':spring-session-data-geode')
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compile("org.springframework.boot:spring-boot-starter-thymeleaf") {
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exclude group: "org.springframework.boot", module: "spring-boot-starter-logging"
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}
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compile("org.springframework.boot:spring-boot-starter-web") {
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exclude group: "org.springframework.boot", module: "spring-boot-starter-logging"
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}
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compile "org.springframework.data:spring-data-geode-test"
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compile "org.webjars:bootstrap"
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compile "org.webjars:webjars-locator"
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runtime "org.springframework.shell:spring-shell"
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testCompile("org.springframework.boot:spring-boot-starter-test") {
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exclude group: "org.springframework.boot", module: "spring-boot-starter-logging"
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}
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}
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bootJar {
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mainClassName = 'sample.client.Application'
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}
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processResources {
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filter ReplaceTokens, tokens: [
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'spring.version' : project.property("springVersion"),
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'spring-data.version' : project.property("springDataGeodeVersion"),
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'spring-session.version' : project.property("springSessionVersion"),
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'spring-session-data-geode.version' : project.property("version")
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]
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}
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/*
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* Copyright 2018 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package sample.client;
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import java.io.PrintWriter;
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import java.io.StringWriter;
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import java.util.Collections;
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import java.util.Enumeration;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Optional;
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import java.util.stream.StreamSupport;
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import javax.servlet.http.HttpSession;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.data.gemfire.config.annotation.ClientCacheApplication;
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import org.springframework.data.gemfire.util.CollectionUtils;
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import org.springframework.session.data.gemfire.config.annotation.web.http.EnableGemFireHttpSession;
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import org.springframework.stereotype.Controller;
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import org.springframework.ui.ModelMap;
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import org.springframework.util.StringUtils;
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import org.springframework.web.bind.annotation.ExceptionHandler;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.RequestParam;
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import org.springframework.web.bind.annotation.ResponseBody;
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import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
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import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
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@SuppressWarnings("unused")
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// tag::class[]
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@SpringBootApplication // <1>
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@ClientCacheApplication(subscriptionEnabled = true) // <2>
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@EnableGemFireHttpSession(regionName = "Sessions", poolName = "DEFAULT") // <3>
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@Controller // <4>
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public class Application {
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private static final String INDEX_TEMPLATE_VIEW_NAME = "index";
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private static final String PING_RESPONSE = "PONG";
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private static final String REQUEST_COUNT_ATTRIBUTE_NAME = "requestCount";
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public static void main(String[] args) {
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SpringApplication.run(Application.class, args);
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}
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@Configuration
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static class SpringWebMvcConfiguration { // <5>
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@Bean
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public WebMvcConfigurer webMvcConfig() {
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return new WebMvcConfigurer() {
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@Override
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public void addViewControllers(ViewControllerRegistry registry) {
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registry.addViewController("/").setViewName(INDEX_TEMPLATE_VIEW_NAME);
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}
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};
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}
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}
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@ExceptionHandler // <6>
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public String errorHandler(Throwable error) {
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StringWriter writer = new StringWriter();
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error.printStackTrace(new PrintWriter(writer));
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return writer.toString();
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}
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@GetMapping("/ping")
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@ResponseBody
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public String ping() {
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return PING_RESPONSE;
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}
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@PostMapping("/session")
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public String session(HttpSession session, ModelMap modelMap,
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@RequestParam(name = "attributeName", required = false) String name,
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@RequestParam(name = "attributeValue", required = false) String value) { // <7>
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modelMap.addAttribute("sessionAttributes",
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attributes(setAttribute(updateRequestCount(session), name, value)));
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return INDEX_TEMPLATE_VIEW_NAME;
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}
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// end::class[]
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HttpSession updateRequestCount(HttpSession session) {
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synchronized (session) {
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Integer currentRequestCount = (Integer) session.getAttribute(REQUEST_COUNT_ATTRIBUTE_NAME);
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session.setAttribute(REQUEST_COUNT_ATTRIBUTE_NAME, nullSafeIncrement(currentRequestCount));
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return session;
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}
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}
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Integer nullSafeIncrement(Integer value) {
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return nullSafeIntValue(value) + 1;
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}
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int nullSafeIntValue(Number value) {
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return Optional.ofNullable(value).map(Number::intValue).orElse(0);
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}
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HttpSession setAttribute(HttpSession session, String attributeName, String attributeValue) {
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if (isSet(attributeName, attributeValue)) {
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session.setAttribute(attributeName, attributeValue);
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}
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return session;
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}
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boolean isSet(String... values) {
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boolean set = true;
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for (String value : values) {
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set &= StringUtils.hasText(value);
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}
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return set;
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}
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Map<String, String> attributes(HttpSession session) {
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Map<String, String> sessionAttributes = new HashMap<>();
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StreamSupport.stream(toIterable(session.getAttributeNames()).spliterator(), false)
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.forEach(attributeName -> sessionAttributes.put(attributeName,
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String.valueOf(session.getAttribute(attributeName))));
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return sessionAttributes;
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}
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<T> Iterable<T> toIterable(Enumeration<T> enumeration) {
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return () -> Optional.ofNullable(enumeration)
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.map(CollectionUtils::toIterator)
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.orElseGet(Collections::emptyIterator);
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}
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}
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#tag::shell-script[]
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#!$GEODE_HOME/bin/gfsh
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set variable --name=USER_HOME --value=${SYS_USER_HOME}
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set variable --name=REPO_HOME --value=${USER_HOME}/.m2/repository
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set variable --name=SPRING_VERSION --value=@spring.version@
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set variable --name=SPRING_DATA_VERSION --value=@spring-data.version@
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set variable --name=SPRING_SESSION_VERSION --value=@spring-session.version@
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set variable --name=SPRING_SESSION_DATA_GEODE_VERSION --value=@spring-session-data-geode.version@
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set variable --name=MEMBER_TIMEOUT --value=5000
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set variable --name=CACHE_XML_FILE --value=${USER_HOME}/spring-session-data-geode/samples/boot/gemfire-with-gfsh-servers/src/main/resources/initializer-cache.xml
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#set variable --name=SERVER_CLASSPATH --value=${REPO_HOME}/org/springframework/spring-core/${SPRING_VERSION}/spring-core-${SPRING_VERSION}.jar\
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#:${REPO_HOME}/org/springframework/spring-aop/${SPRING_VERSION}/spring-aop-${SPRING_VERSION}.jar\
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#:${REPO_HOME}/org/springframework/spring-beans/${SPRING_VERSION}/spring-beans-${SPRING_VERSION}.jar\
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#:${REPO_HOME}/org/springframework/spring-context/${SPRING_VERSION}/spring-context-${SPRING_VERSION}.jar\
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#:${REPO_HOME}/org/springframework/spring-context-support/${SPRING_VERSION}/spring-context-support-${SPRING_VERSION}.jar\
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#:${REPO_HOME}/org/springframework/spring-expression/${SPRING_VERSION}/spring-expression-${SPRING_VERSION}.jar\
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#:${REPO_HOME}/org/springframework/spring-jcl/${SPRING_VERSION}/spring-jcl-${SPRING_VERSION}.jar\
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#:${REPO_HOME}/org/springframework/spring-tx/${SPRING_VERSION}/spring-tx-${SPRING_VERSION}.jar\
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#:${REPO_HOME}/org/springframework/data/spring-data-commons/${SPRING_DATA_VERSION}/spring-data-commons-${SPRING_DATA_VERSION}.jar\
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#:${REPO_HOME}/org/springframework/data/spring-data-geode/${SPRING_DATA_VERSION}/spring-data-geode-${SPRING_DATA_VERSION}.jar\
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#:${REPO_HOME}/org/springframework/session/spring-session-core/${SPRING_SESSION_VERSION}/spring-session-core-${SPRING_SESSION_VERSION}.jar\
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#:${REPO_HOME}/org/springframework/session/spring-session-data-geode/${SPRING_SESSION_DATA_GEODE_VERSION}/spring-session-data-geode-${SPRING_SESSION_DATA_GEODE_VERSION}.jar\
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#:${REPO_HOME}/org/slf4j/slf4j-api/1.7.25/slf4j-api-1.7.25.jar
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set variable --name=SERVER_CLASSPATH --value=${REPO_HOME}/org/springframework/spring-core/${SPRING_VERSION}/spring-core-${SPRING_VERSION}.jar:${REPO_HOME}/org/springframework/spring-aop/${SPRING_VERSION}/spring-aop-${SPRING_VERSION}.jar:${REPO_HOME}/org/springframework/spring-beans/${SPRING_VERSION}/spring-beans-${SPRING_VERSION}.jar:${REPO_HOME}/org/springframework/spring-context/${SPRING_VERSION}/spring-context-${SPRING_VERSION}.jar:${REPO_HOME}/org/springframework/spring-context-support/${SPRING_VERSION}/spring-context-support-${SPRING_VERSION}.jar:${REPO_HOME}/org/springframework/spring-expression/${SPRING_VERSION}/spring-expression-${SPRING_VERSION}.jar:${REPO_HOME}/org/springframework/spring-jcl/${SPRING_VERSION}/spring-jcl-${SPRING_VERSION}.jar:${REPO_HOME}/org/springframework/spring-tx/${SPRING_VERSION}/spring-tx-${SPRING_VERSION}.jar:${REPO_HOME}/org/springframework/data/spring-data-commons/${SPRING_DATA_VERSION}/spring-data-commons-${SPRING_DATA_VERSION}.jar:${REPO_HOME}/org/springframework/data/spring-data-geode/${SPRING_DATA_VERSION}/spring-data-geode-${SPRING_DATA_VERSION}.jar:${REPO_HOME}/org/springframework/session/spring-session-core/${SPRING_SESSION_VERSION}/spring-session-core-${SPRING_SESSION_VERSION}.jar:${REPO_HOME}/org/springframework/session/spring-session-data-geode/${SPRING_SESSION_DATA_GEODE_VERSION}/spring-session-data-geode-${SPRING_SESSION_DATA_GEODE_VERSION}.jar:${REPO_HOME}/org/slf4j/slf4j-api/1.7.25/slf4j-api-1.7.25.jar
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start locator --name=Locator1 --log-level=config
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#start locator --name=Locator1 --log-level=config --J=-Dgemfire.member-timeout=${MEMBER_TIMEOUT}
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start server --name=Server1 --log-level=config --cache-xml-file=${CACHE_XML_FILE} --classpath=${SERVER_CLASSPATH}
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#start server --name=Server1 --log-level=config --cache-xml-file=${CACHE_XML_FILE} --classpath=${SERVER_CLASSPATH} --J=-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005 --J=-Dgemfire.member-timeout=${MEMBER_TIMEOUT}
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start server --name=Server2 --server-port=0 --log-level=config --cache-xml-file=${CACHE_XML_FILE} --classpath=${SERVER_CLASSPATH}
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#start server --name=Server2 --server-port=0 --log-level=config --cache-xml-file=${CACHE_XML_FILE} --classpath=${SERVER_CLASSPATH} --J=-Dgemfire.member-timeout=${MEMBER_TIMEOUT}
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create region --name=Sessions --type=PARTITION --skip-if-exists --enable-statistics=true --entry-idle-time-expiration=15 --entry-idle-time-expiration-action=INVALIDATE
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#end::shell-script[]
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#!/bin/bash
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gfsh -e "run --file=${SYS_USER_HOME}/spring-session-data-geode/samples/boot/gemfire-with-gfsh-servers/src/main/resources/geode/bin/start-cluster.gfsh"
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#!$GEODE_HOME/bin/gfsh
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stop server --name=Server2
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stop server --name=Server1
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stop locator --name=Locator1
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#!/bin/bash
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gfsh -e "run --file=${SYS_USER_HOME}/spring-session-data-geode/samples/boot/gemfire-with-gfsh-servers/src/main/resources/geode/bin/stop-cluster.gfsh"
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# tag::queries[]
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SELECT session.id FROM /Sessions session
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SELECT session.getClass().getName() FROM /Sessions session
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SELECT attributes.key, attributes.value FROM /Sessions session, session.attributes attributes
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# end::queries[]
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<?xml version="1.0" encoding="UTF-8"?>
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<!-- tag::cache-xml[] -->
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<cache xmlns="http://geode.apache.org/schema/cache"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://geode.apache.org/schema/cache http://geode.apache.org/schema/cache/cache-1.0.xsd"
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version="1.0">
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<initializer>
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<class-name>
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org.springframework.session.data.gemfire.serialization.data.support.DataSerializableSessionSerializerInitializer
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</class-name>
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</initializer>
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</cache>
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<!-- end::cache-xml[] -->
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<!DOCTYPE html SYSTEM "http://www.thymeleaf.org/dtd/xhtml1-strict-thymeleaf-spring4-3.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org">
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<head>
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<title>Session Attributes</title>
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<link rel="stylesheet" th:href="@{/webjars/bootstrap/css/bootstrap.min.css}" href="/webjars/bootstrap/css/bootstrap.min.css"/>
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<style type="text/css">
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body {
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padding: 1em;
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}
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</style>
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</head>
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<body>
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<div class="container">
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<h1>Description</h1>
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<p>
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This application demonstrates how to use a GemFire instance to back your session. Notice that there
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is no JSESSIONID cookie. We are also able to customize the way of identifying what the requested
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session id is.
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</p>
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<h1>Try it</h1>
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<form class="form-inline" role="form" action="./session" method="post">
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<label for="attributeName">Attribute Name</label>
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<input id="attributeName" type="text" name="attributeName"/>
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<label for="attributeValue">Attribute Value</label>
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<input id="attributeValue" type="text" name="attributeValue"/>
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<input type="submit" value="Set Attribute"/>
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</form>
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<hr/>
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<table class="table table-striped">
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<thead>
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<tr>
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<th>Attribute Name</th>
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<th>Attribute Value</th>
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</tr>
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</thead>
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<tbody>
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<tr th:each="attribute: ${sessionAttributes}">
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<td th:text="${attribute.key}">name</td>
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<td th:text="${attribute.value}">value</td>
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</tr>
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</tbody>
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</table>
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</div>
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</body>
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</html>
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