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/**
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* Copyright (C) 2014 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.remote.config;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.List;
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import javax.servlet.ServletContext;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.DependsOn;
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import org.springframework.context.annotation.Import;
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import org.springframework.format.FormatterRegistry;
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import org.springframework.http.MediaType;
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import org.springframework.web.accept.ContentNegotiationManager;
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import org.springframework.web.context.support.ServletContextResource;
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import org.springframework.web.servlet.ViewResolver;
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import org.springframework.web.servlet.config.annotation.ContentNegotiationConfigurer;
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import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
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import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
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import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
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import org.springframework.web.servlet.view.ContentNegotiatingViewResolver;
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import org.springframework.web.servlet.view.XmlViewResolver;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import eu.etaxonomy.cdm.remote.controller.interceptor.LocaleContextHandlerInterceptor;
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import eu.etaxonomy.cdm.remote.converter.RestrictionConverter;
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import eu.etaxonomy.cdm.remote.view.PatternViewResolver;
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/**
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* This is the main configuration for spring MVC application context.
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*
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*
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* <h3>NOTE:</h3>
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* For a detailed overview on the spring MVC and application context configuration and
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* bootstrapping of this web application see:
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* {@link https://dev.e-taxonomy.eu/redmine/projects/edit/wiki/cdmlib-remote-webappConfigurationAndBootstrapping}
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*
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*
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* @author a.kohlbecker
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* @since Jul 1, 2014
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*/
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// @EnableWebMvc // do not add this since we are overriding WebMvcConfigurationSupport directly
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@Import(value={PreloadedBeans.class}) // can not be replaced by @DependsOn("...") ?
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//@DependsOn("objectMapperConfigurer")
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public abstract class CdmSpringMVCConfig extends WebMvcConfigurationSupport {
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/**
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* turn caching off FOR DEBUGING ONLY !!!!
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*/
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private static final boolean XML_VIEW_CACHING = true;
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public static final Logger logger = LogManager.getLogger(CdmSpringMVCConfig.class);
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@Autowired
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protected ServletContext servletContext;
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@Autowired // is initialized in PreloadedBeans.class
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private ObjectMapper jsonObjectMapper;
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@Autowired // is initialized in PreloadedBeans.class
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private LocaleContextHandlerInterceptor localeContextHandlerInterceptor;
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Collection<Class<? extends Object>> allCdmTypes = null;
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// ========================== JSP =================================
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// public static final String[] WEB_JAR_RESOURCE_PATTERNS = {"css/", "images/", "lib/", "swagger-ui.js"};
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// public static final String WEB_JAR_RESOURCE_LOCATION = "classpath:META-INF/resources/";
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//
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// public static final String WEB_JAR_VIEW_RESOLVER_PREFIX = "/WEB-INF/jsp/";
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// public static final String WEB_JAR_VIEW_RESOLVER_SUFFIX = ".jsp";
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// @Override
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// public void addResourceHandlers(ResourceHandlerRegistry registry) {
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// registry.addResourceHandler(WEB_JAR_RESOURCE_PATTERNS)
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// .addResourceLocations("/")
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// .addResourceLocations(WEB_JAR_RESOURCE_LOCATION).setCachePeriod(0);
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// }
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// @Bean
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// public InternalResourceViewResolver getInternalResourceViewResolverJsp() {
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// InternalResourceViewResolver resolver = new InternalResourceViewResolver();
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// resolver.setOrder(0);
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// resolver.setPrefix(WEB_JAR_VIEW_RESOLVER_PREFIX);
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// resolver.setSuffix(WEB_JAR_VIEW_RESOLVER_SUFFIX);
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// // view names (or name patterns) that can be handled
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// resolver.setViewNames(new String[]{...});
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// return resolver;
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// }
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// ======================================================================
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public CdmSpringMVCConfig() {
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super();
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logger.debug("constructor");
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}
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@Bean
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@DependsOn({ "requestMappingHandlerAdapter" })
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public XmlViewResolver getOaiXmlViewResolver() {
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XmlViewResolver resolver = new XmlViewResolver();
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resolver.setOrder(1);
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resolver.setLocation(new ServletContextResource(servletContext, "/WEB-INF/oai-views.xml"));
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resolver.setCache(XML_VIEW_CACHING);
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return resolver;
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}
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@Bean
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@DependsOn({ "requestMappingHandlerAdapter" })
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public XmlViewResolver kmlXmlViewResolver() {
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XmlViewResolver resolver = new PatternViewResolver();
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resolver.setOrder(1);
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resolver.setLocation(new ServletContextResource(servletContext, "/WEB-INF/kml-views.xml"));
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resolver.setCache(XML_VIEW_CACHING);
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return resolver;
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}
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@Override
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protected void addInterceptors(InterceptorRegistry registry) {
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// TODO does it work?
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registry.addInterceptor(localeContextHandlerInterceptor);
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logger.debug("addInterceptors");
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}
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@Override
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public void addFormatters(FormatterRegistry registry) {
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registry.addConverter(new RestrictionConverter(jsonObjectMapper));
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}
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@Override
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protected void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
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// DefaultServletHandlerConfigurer: delegates unhandled requests by forwarding to
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// the Servlet container's "default" servlet, since the DispatcherServlet is mapped to "/"
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// so static content ad welcome files are handled by the default servlet
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configurer.enable();
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logger.debug("configureDefaultServletHandling");
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}
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@Override
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public void configureContentNegotiation(ContentNegotiationConfigurer configurer) {
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configurer
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.favorPathExtension(true)
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.favorParameter(false)
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.defaultContentType(MediaType.APPLICATION_JSON)
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.mediaType("xml", MediaType.APPLICATION_XML)
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.mediaType("dc", MediaType.APPLICATION_XML)
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.mediaType("rdf", MediaType.APPLICATION_XML)
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.mediaType("rdfxml", MediaType.APPLICATION_XML)
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.mediaType("json", MediaType.APPLICATION_JSON);
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logger.debug("configureContentNegotiation");
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}
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/**
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* Create the CNVR. Specify the view resolvers to use explicitly. Get Spring to inject
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* the ContentNegotiationManager created by the configurer (see previous method).
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*/
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@Bean
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public ViewResolver contentNegotiatingViewResolver(ContentNegotiationManager manager) {
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List<ViewResolver> resolvers = new ArrayList<>();
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resolvers.add(getPatternViewResolver("xml"));
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resolvers.add(getPatternViewResolver("json"));
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resolvers.add(getPatternViewResolver("rdf"));
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ContentNegotiatingViewResolver resolver = new ContentNegotiatingViewResolver();
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resolver.setOrder(2);
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resolver.setContentNegotiationManager(manager);
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resolver.setViewResolvers(resolvers);
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logger.debug("contentNegotiatingViewResolver");
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return resolver;
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}
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private ViewResolver getPatternViewResolver(String type) {
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PatternViewResolver resolver = new PatternViewResolver();
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resolver.setLocation(new ServletContextResource(servletContext, "/WEB-INF/"+ type + "-views.xml"));
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resolver.setCache(XML_VIEW_CACHING);
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return resolver;
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}
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}
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