From 73199eab12518a5c4921263e5d050442017a651d Mon Sep 17 00:00:00 2001
From: mjkhan21 <mjkhan21@xit.co.kr>
Date: Fri, 30 Jun 2023 17:33:45 +0900
Subject: [PATCH] =?UTF-8?q?=EC=99=B8=EB=B6=80=20static=20resource=20?=
 =?UTF-8?q?=EC=84=9C=EB=B9=84=EC=8A=A4=20=EC=B6=94=EA=B0=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 .../cokr/xit/foundation/boot/MvcConfig.java   | 16 +++++-
 .../xit/foundation/boot/ServletConfig.java    | 26 +++++----
 .../foundation/boot/StaticResourceConfig.java | 55 +++++++++++++++++++
 3 files changed, 84 insertions(+), 13 deletions(-)
 create mode 100644 src/main/java/cokr/xit/foundation/boot/StaticResourceConfig.java

diff --git a/src/main/java/cokr/xit/foundation/boot/MvcConfig.java b/src/main/java/cokr/xit/foundation/boot/MvcConfig.java
index 72c4dda..378728e 100644
--- a/src/main/java/cokr/xit/foundation/boot/MvcConfig.java
+++ b/src/main/java/cokr/xit/foundation/boot/MvcConfig.java
@@ -1,6 +1,9 @@
 package cokr.xit.foundation.boot;
 
+import javax.annotation.Resource;
+
 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.web.multipart.commons.CommonsMultipartResolver;
@@ -24,6 +27,8 @@ import cokr.xit.foundation.web.AccessInitializer;
 @Configuration
 public class MvcConfig implements WebMvcConfigurer {
 	protected static String[] URL_PATTERNS = {"/", "/**/*.do"};
+	@Resource(name = "staticResource")
+	private StaticResourceConfig staticResource;
 
 	/**AccessInitializer를 반환한다.
 	 * @return AccessInitializer
@@ -33,6 +38,9 @@ public class MvcConfig implements WebMvcConfigurer {
 		return new AccessInitializer();
 	}
 
+	@Value("${spring.web.resources.static-locations}")
+	private String staticLocations;
+
 	/**정적 파일 자원 접근에 대한 설정을 추가한다.
 	 * <ul><li>url: /resources/** </li>
 	 *     <li>위치: /resources/</li>
@@ -40,9 +48,11 @@ public class MvcConfig implements WebMvcConfigurer {
 	 */
 	@Override
 	public void addResourceHandlers(ResourceHandlerRegistry registry) {
-		registry
-			.addResourceHandler("/resources/**", "/files/**")
-			.addResourceLocations("/resources/", "/files/");
+		staticResource.getMappings().forEach((k, v) ->
+			registry
+				.addResourceHandler(k)
+				.addResourceLocations(v)
+		);
 	}
 
 	/**AccessInitializer를 interceptor로 추가한다.
diff --git a/src/main/java/cokr/xit/foundation/boot/ServletConfig.java b/src/main/java/cokr/xit/foundation/boot/ServletConfig.java
index 4ea9d4d..0d20766 100644
--- a/src/main/java/cokr/xit/foundation/boot/ServletConfig.java
+++ b/src/main/java/cokr/xit/foundation/boot/ServletConfig.java
@@ -1,6 +1,8 @@
 package cokr.xit.foundation.boot;
 
-import java.util.HashMap;
+import java.util.Map;
+
+import javax.annotation.Resource;
 
 import org.apache.catalina.servlets.DefaultServlet;
 import org.springframework.boot.web.servlet.FilterRegistrationBean;
@@ -17,6 +19,8 @@ import cokr.xit.foundation.web.AccessFilter;
 @Configuration
 public class ServletConfig {
 	protected static String[] URL_PATTERNS = {"/", "*.do"};
+	@Resource(name = "staticResource")
+	private StaticResourceConfig staticResource;
 
 	/**CharacterEncodingFilter를 등록한다.
 	 * @return FilterRegistrationBean
@@ -47,18 +51,20 @@ public class ServletConfig {
 	 */
 	@Bean
     public ServletRegistrationBean<DefaultServlet> defaultServlet() {
-        ServletRegistrationBean<DefaultServlet> bean = new ServletRegistrationBean<>(
-        	new DefaultServlet(),
-        	"/resources/*",
-        	"/files/*"
+		String[] urls = staticResource.getURLs(entry -> !entry.getValue().startsWith("file:"));
+		for (int i = 0; i <urls.length; ++i)
+			urls[i] = urls[i].replace("/**", "/*");
+
+		ServletRegistrationBean<DefaultServlet> bean = new ServletRegistrationBean<>(
+			new DefaultServlet(),
+        	urls
         );
         bean.setLoadOnStartup(1);
+        bean.setInitParameters(Map.of(
+        	"debug", "0",
+        	"listings", "false"
+        ));
 
-        HashMap<String, String> params = new HashMap<>();
-        params.put("debug", "0");
-        params.put("listings", "false");
-
-        bean.setInitParameters(params);
         return bean;
     }
 }
\ No newline at end of file
diff --git a/src/main/java/cokr/xit/foundation/boot/StaticResourceConfig.java b/src/main/java/cokr/xit/foundation/boot/StaticResourceConfig.java
new file mode 100644
index 0000000..2ec3a37
--- /dev/null
+++ b/src/main/java/cokr/xit/foundation/boot/StaticResourceConfig.java
@@ -0,0 +1,55 @@
+package cokr.xit.foundation.boot;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.function.Predicate;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.annotation.Configuration;
+
+import cokr.xit.foundation.Assert;
+import cokr.xit.foundation.data.StringMap;
+
+@Configuration("staticResource")
+public class StaticResourceConfig {
+	@Value("${spring.mvc.static-path-pattern}")
+	private String staticURLs;
+	@Value("${spring.web.resources.static-locations}")
+	private String staticLocations;
+
+	public Map<String, String> getMappings() {
+		if (Assert.isEmpty(staticURLs) && Assert.isEmpty(staticLocations))
+			return Collections.emptyMap();
+
+		List<String>
+			urls = Arrays.asList(staticURLs.split(",")),
+			locations = Arrays.asList(staticLocations.split(","));
+		if (urls.size() != locations.size())
+			throw new RuntimeException("URLs and locations do not match in size for static resources");
+
+		StringMap<String> resMap = new StringMap<>();
+		for (int i = 0; i < urls.size(); ++i) {
+			String url = urls.get(i),
+				   location = locations.get(i);
+			resMap.put(url.trim(), location.trim());
+		}
+
+		return resMap;
+	}
+
+	public String[] getURLs(Predicate<Map.Entry<String, String>> filter) {
+		Predicate<Map.Entry<String, String>> test = filter != null ? filter : entry -> true;
+		List<String> urls = getMappings().entrySet().stream()
+			.filter(test)
+			.map(entry -> entry.getKey())
+			.toList();
+		return urls.toArray(new String[urls.size()]);
+	}
+
+	public String[] getLocations() {
+		List<String> locations = getMappings().values().stream().toList();
+		return locations.toArray(new String[locations.size()]);
+	}
+}
\ No newline at end of file