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GH-5076: Introduce tools/server-spring6
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‎tools/pom.xml‎

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<module>federation</module>
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<module>server</module>
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<module>server-spring</module>
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<module>server-spring6</module>
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<module>workbench</module>
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<module>runtime</module>
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<module>runtime-osgi</module>

‎tools/server-spring/pom.xml‎

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<version>5.3.0-SNAPSHOT</version>
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</parent>
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<artifactId>rdf4j-http-server-spring</artifactId>
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<name>RDF4J: HTTP server - core</name>
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<name>RDF4J: HTTP server - core (Spring 5)</name>
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<description>HTTP server implementing a REST-style protocol</description>
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<dependencies>
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<dependency>

‎tools/server-spring6/pom.xml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>org.eclipse.rdf4j</groupId>
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<artifactId>rdf4j-tools</artifactId>
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<version>5.3.0-SNAPSHOT</version>
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</parent>
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<artifactId>rdf4j-http-server-spring6</artifactId>
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<name>RDF4J: HTTP server - core (Spring 6)</name>
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<description>HTTP server implementing a REST-style protocol</description>
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<dependencies>
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<dependency>
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<groupId>${project.groupId}</groupId>
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<artifactId>rdf4j-client</artifactId>
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<version>${project.version}</version>
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<type>pom</type>
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</dependency>
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<dependency>
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<groupId>${project.groupId}</groupId>
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<artifactId>rdf4j-storage</artifactId>
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<version>${project.version}</version>
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<type>pom</type>
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</dependency>
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<dependency>
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<groupId>${project.groupId}</groupId>
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<artifactId>rdf4j-config</artifactId>
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<version>${project.version}</version>
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</dependency>
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<dependency>
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<groupId>${project.groupId}</groupId>
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<artifactId>rdf4j-rio-rdfjson</artifactId>
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<version>${project.version}</version>
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</dependency>
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<dependency>
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<groupId>javax.servlet</groupId>
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<artifactId>javax.servlet-api</artifactId>
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<scope>provided</scope>
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</dependency>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-aop</artifactId>
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<scope>runtime</scope>
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</dependency>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-webmvc</artifactId>
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</dependency>
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-api</artifactId>
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</dependency>
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<dependency>
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<groupId>com.google.guava</groupId>
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<artifactId>guava</artifactId>
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</dependency>
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<dependency>
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<groupId>org.mockito</groupId>
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<artifactId>mockito-core</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-test</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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</project>

‎tools/server-spring6/src/main/java/org/eclipse/rdf4j/common/webapp/CommonValuesHandlerInterceptor.java‎

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/*******************************************************************************
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* Copyright (c) 2015 Eclipse RDF4J contributors, Aduna, and others.
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*
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Distribution License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/org/documents/edl-v10.php.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*******************************************************************************/
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package org.eclipse.rdf4j.common.webapp;
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import java.util.Calendar;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import org.springframework.web.servlet.HandlerInterceptor;
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import org.springframework.web.servlet.ModelAndView;
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/**
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* Interceptor that inserts some commonly used values into the model. The inserted values are: - path, equal to
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* request.getContextPath() (e.g. /context) - basePath, equal to the fully qualified context path (e.g.
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* http://www.example.com/context/) - currentYear, equal to the current year
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*
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* @author Herko ter Horst
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*/
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public class CommonValuesHandlerInterceptor implements HandlerInterceptor {
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@Override
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public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler,
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Exception ex) {
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// nop
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}
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@Override
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public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView mav) {
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mav.addObject("path", request.getContextPath());
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mav.addObject("basePath", request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort()
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+ request.getContextPath() + "/");
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mav.addObject("currentYear", Calendar.getInstance().get(Calendar.YEAR));
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}
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@Override
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public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
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throws Exception {
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return true;
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}
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}

‎tools/server-spring6/src/main/java/org/eclipse/rdf4j/common/webapp/Message.java‎

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/*******************************************************************************
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* Copyright (c) 2015 Eclipse RDF4J contributors, Aduna, and others.
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*
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Distribution License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/org/documents/edl-v10.php.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*******************************************************************************/
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package org.eclipse.rdf4j.common.webapp;
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/**
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* @author Herko ter Horst
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*/
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public class Message {
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public static final String ATTRIBUTE_KEY = "message";
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public enum Type {
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ERROR,
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WARN,
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INFO
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}
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private final Type type;
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private final String i18n;
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public Message(Type type, String i18n) {
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this.type = type;
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this.i18n = i18n;
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}
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/**
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* @return Returns the type.
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*/
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public Type getType() {
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return type;
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}
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/**
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* @return Returns the i18n.
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*/
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public String getI18n() {
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return i18n;
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}
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}

‎tools/server-spring6/src/main/java/org/eclipse/rdf4j/common/webapp/MessageHandlerInterceptor.java‎

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/*******************************************************************************
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* Copyright (c) 2015 Eclipse RDF4J contributors, Aduna, and others.
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*
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Distribution License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/org/documents/edl-v10.php.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*******************************************************************************/
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package org.eclipse.rdf4j.common.webapp;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import javax.servlet.http.HttpSession;
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import org.springframework.web.servlet.HandlerInterceptor;
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import org.springframework.web.servlet.ModelAndView;
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import org.springframework.web.servlet.view.RedirectView;
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/**
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* Interceptor that inserts some commonly used values into the model. The inserted values are: - path, equal to
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* request.getContextPath() (e.g. /context) - basePath, equal to the fully qualified context path (e.g.
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* http://www.example.com/context/) - currentYear, equal to the current year
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*
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* @author Herko ter Horst
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*/
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public class MessageHandlerInterceptor implements HandlerInterceptor {
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@Override
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public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler,
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Exception ex) {
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// nop
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}
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@Override
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public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView mav) {
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HttpSession session = request.getSession();
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if (session != null) {
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Message message = (Message) session.getAttribute(Message.ATTRIBUTE_KEY);
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if (message != null && !mav.getModelMap().containsKey(Message.ATTRIBUTE_KEY)) {
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mav.addObject(Message.ATTRIBUTE_KEY, message);
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}
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boolean shouldRemove = true;
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if (mav.hasView() && mav.getView() instanceof RedirectView) {
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shouldRemove = false;
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}
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if (mav.getViewName() != null && mav.getViewName().startsWith("redirect:")) {
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shouldRemove = false;
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}
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if (shouldRemove) {
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session.removeAttribute(Message.ATTRIBUTE_KEY);
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}
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}
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}
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@Override
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public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
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throws Exception {
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return true;
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}
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}

‎tools/server-spring6/src/main/java/org/eclipse/rdf4j/common/webapp/filters/PathFilter.java‎

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/*******************************************************************************
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* Copyright (c) 2015 Eclipse RDF4J contributors, Aduna, and others.
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*
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Distribution License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/org/documents/edl-v10.php.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*******************************************************************************/
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package org.eclipse.rdf4j.common.webapp.filters;
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import java.io.CharArrayWriter;
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import java.io.IOException;
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import java.io.PrintWriter;
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import javax.servlet.Filter;
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import javax.servlet.FilterChain;
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import javax.servlet.FilterConfig;
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import javax.servlet.ServletException;
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import javax.servlet.ServletRequest;
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import javax.servlet.ServletResponse;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import javax.servlet.http.HttpServletResponseWrapper;
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/**
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* @author Herko ter Horst
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*/
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public class PathFilter implements Filter {
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@Override
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public void init(FilterConfig filterConf) throws ServletException {
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// do nothing
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}
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@Override
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public void destroy() {
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// do nothing
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}
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@Override
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public void doFilter(ServletRequest req, ServletResponse res, FilterChain filterChain)
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throws IOException, ServletException {
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if (req instanceof HttpServletRequest) {
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HttpServletRequest request = (HttpServletRequest) req;
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HttpServletResponse response = (HttpServletResponse) res;
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String path = request.getContextPath();
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PrintWriter out = response.getWriter();
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CharResponseWrapper wrapper = new CharResponseWrapper((HttpServletResponse) response);
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filterChain.doFilter(request, wrapper);
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CharArrayWriter caw = new CharArrayWriter();
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caw.write(wrapper.toString().replace("${path}", path));
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String result = caw.toString();
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response.setContentLength(result.length());
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out.write(result);
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}
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}
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private static class CharResponseWrapper extends HttpServletResponseWrapper {
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private final CharArrayWriter output;
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@Override
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public String toString() {
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return output.toString();
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}
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public CharResponseWrapper(HttpServletResponse response) {
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super(response);
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output = new CharArrayWriter();
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}
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@Override
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public PrintWriter getWriter() {
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return new PrintWriter(output);
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}
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}
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}

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