REFACT :: FilterChainProxy 개선

maeumgagym-infrastructure/src/main/kotlin/com/info/maeumgagym/error/filter/filterchain/ExceptionChainedFilterChainProxy.kt

@@ -1,11 +1,10 @@
 package com.info.maeumgagym.error.filter.filterchain
 
-import com.info.maeumgagym.filter.chained.ChainedFilterChain
 import com.info.maeumgagym.filter.chained.ChainedFilterChainProxy
 
 class ExceptionChainedFilterChainProxy(
-    private val exceptionChainedFilterChain: ExceptionChainedFilterChain
-) : ChainedFilterChainProxy() {
+    exceptionChainedFilterChain: ExceptionChainedFilterChain
+) : ChainedFilterChainProxy<ExceptionChainedFilterChain>() {
 
-    override fun getFilterChain(): ChainedFilterChain = this.exceptionChainedFilterChain
+    override val filterChain: ExceptionChainedFilterChain = exceptionChainedFilterChain
 }

maeumgagym-infrastructure/src/main/kotlin/com/info/maeumgagym/filter/chained/ChainedFilterChainProxy.kt

@@ -1,16 +1,8 @@
 package com.info.maeumgagym.filter.chained
 
-import org.springframework.web.filter.GenericFilterBean
-import javax.servlet.FilterChain
-import javax.servlet.ServletRequest
-import javax.servlet.ServletResponse
+import com.info.maeumgagym.filter.global.GlobalFilterChainProxy
 
-abstract class ChainedFilterChainProxy : GenericFilterBean() {
+abstract class ChainedFilterChainProxy<out T : ChainedFilterChain> : GlobalFilterChainProxy<T>() {
 
-    abstract fun getFilterChain(): ChainedFilterChain
-
-    override fun doFilter(request: ServletRequest, response: ServletResponse, chain: FilterChain) {
-        val filterChain = this.getFilterChain()
-        filterChain.doFilterChained(request, response, chain)
-    }
+    abstract override val filterChain: T
 }

maeumgagym-infrastructure/src/main/kotlin/com/info/maeumgagym/filter/global/GlobalFilterChainProxy.kt

@@ -10,14 +10,16 @@ import javax.servlet.ServletResponse
  *
  * @see GlobalFilterChain
  *
+ * @param T 해당 Proxy 클래스가 대리하고 있는 FilterChain
+ *
  * @author Daybreak312
  * @since 21-03-2024
  */
-abstract class GlobalFilterChainProxy : GenericFilterBean() {
+abstract class GlobalFilterChainProxy<out T : GlobalFilterChain> : GenericFilterBean() {
 
-    protected abstract val filterChain: GlobalFilterChain
+    protected abstract val filterChain: T
 
     override fun doFilter(request: ServletRequest, response: ServletResponse, chain: FilterChain) {
-        filterChain.doFilter(request, response)
+        this.filterChain.doFilter(request, response)
     }
 }