com.k2.core.DispatcherServletConfiguration Maven / Gradle / Ivy
/* vim: set et ts=2 sw=2 cindent fo=qroca: */
package com.k2.core;
import org.springframework.web.servlet.config.annotation
.ResourceHandlerRegistration;
import org.springframework.web.servlet.config.annotation
.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation
.WebMvcConfigurationSupport;
import org.springframework.web.servlet.mvc.method.annotation
.RequestMappingHandlerAdapter;
import org.springframework.web.servlet.mvc.method.annotation
.RequestMappingHandlerMapping;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.support
.PropertySourcesPlaceholderConfigurer;
import org.springframework.http.converter.HttpMessageConverter;
/** Custom configuration for the dispatcher servlet application context
*
* K2 uses this configuration to initialize the dispatcher servlet if the
* application runs in a web environment.
*
* @see com.k2.core.Application#setWebEnvironment(boolean)
*/
@Configuration
public class DispatcherServletConfiguration extends WebMvcConfigurationSupport {
/** Whether the application is loaded in debug modue or not.
*
* Injected by spring.
*
* NOTE: Avoid @Value in attributes as plage in your code. I could not
* find another way, given that this is used in an overriden operation from
* WebMvcConfigurationSupport.
*/
@Value(value = "${debug:false}") private boolean debug;
/** The module definition that owns the DispatcherServlet of this
* configuration.
*
* Injected by spring, never null after wired.
*
* NOTE: Avoid Autowired in attributes as plague in your code. I could not
* find another way, given that this is used in an overriden operation from
* WebMvcConfigurationSupport.
*/
@Autowired private ModuleDefinition moduleDefinition;
/** Defines a handler mapping to look for handlers in the current
* application context and its parent.
*
* @return a properly configured handler mapping. Never returns null.
*/
@Override
protected RequestMappingHandlerMapping createRequestMappingHandlerMapping() {
RequestMappingHandlerMapping result = new RequestMappingHandlerMapping();
result.setDetectHandlerMethodsInAncestorContexts(true);
return result;
}
/** A handler adapter bean that can be configured with the message converters
* found in the application context hierarchy.
*
* If there is at least one message converter up in the application context
* hierarchy, this bean will override the default message converters for the
* handler adapter.
*
* @param converters a list of message converters. If empty, the handler
* adapter uses the default converters (see WebMvcConfigurationSupport).
*
* @return a RequestMappingHandlerAdapter configured with any message
* converter found in the application context. Never returns null.
*/
@Bean
public RequestMappingHandlerAdapter requestMappingHandlerAdapter(
final List> converters) {
RequestMappingHandlerAdapter adapter;
adapter = super.requestMappingHandlerAdapter();
if (!converters.isEmpty()) {
adapter.setMessageConverters(converters);
}
return adapter;
}
/** Registers handlers that serve the module static content.
*/
@Override
protected void addResourceHandlers(final ResourceHandlerRegistry registry) {
ResourceHandlerRegistration reg;
reg = registry.addResourceHandler("/static/**");
if (debug && moduleDefinition.getRelativePath() != null) {
reg.addResourceLocations("file:" + moduleDefinition.getRelativePath()
+ "/" + moduleDefinition.getStaticPath());
}
reg.addResourceLocations("classpath:" + moduleDefinition.getStaticPath());
}
/** Bean to resolve @Value from k2 environment.
*
* @return a place holder configurer, to resolve @Value. Never returns null.
*/
@Bean
public static PropertySourcesPlaceholderConfigurer propertyConfigIn() {
return new PropertySourcesPlaceholderConfigurer();
}
}