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Frontend customization #7

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Frontend customization #7

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32 changes: 22 additions & 10 deletions frontend/src/main/java/gov/nih/ncats/gsrsfrontend/config/MvcConfiguration.java
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Original file line number Diff line number Diff line change
@@ -1,7 +1,9 @@
package gov.nih.ncats.gsrsfrontend.config;

import java.io.IOException;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.FileSystemResource;
import org.springframework.core.io.Resource;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
Expand All @@ -10,30 +12,40 @@
import org.springframework.web.servlet.resource.PathResourceResolver;
import org.springframework.beans.factory.annotation.Value;

import java.io.IOException;

@Configuration
public class MvcConfiguration implements WebMvcConfigurer {
@Value("${route.prefix:ginas/app/beta/}")
private String prefix = "ginas/app/beta/";


//This is so all the front end refresh/ non-existing files default back to index.html
@Value("${gsrs.frontend.config.dir:classpath:/static/assets/data}")
private String frontendConfigDir = "classpath:/static/assets/data";

private final Resource indexPage = new ClassPathResource("/static/index.html");

@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/**")
registry.addResourceHandler("/**")
.addResourceLocations("classpath:/static/")
.resourceChain(true)
.addResolver(new PathResourceResolver() {
@Override
protected Resource getResource(String resourcePath, Resource location) throws IOException {
if(resourcePath.startsWith(prefix)){
resourcePath = resourcePath.substring(prefix.length());
resourcePath = resourcePath.substring(prefix.length());
}
Resource requestedResource;
if (!frontendConfigDir.startsWith("classpath:/")) {
if (resourcePath.startsWith("assets/data/")
|| resourcePath.startsWith("assets/images/")
|| resourcePath.endsWith("styles.custom.css")) {
requestedResource = new FileSystemResource(frontendConfigDir + "/" + resourcePath.substring(resourcePath.lastIndexOf("/")+1));
if (requestedResource.exists() && requestedResource.isReadable()) {
return requestedResource;
}
}
}
Resource requestedResource = location.createRelative(resourcePath);

return (requestedResource.exists() && requestedResource.isReadable()) ? requestedResource
: new ClassPathResource("/static/index.html");
requestedResource = location.createRelative(resourcePath);
return (requestedResource.exists() && requestedResource.isReadable()) ? requestedResource : indexPage;
}
});
}
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