DJBErpNsmapiAccessTokenService 토큰 만료시간 및 HTTP 클라이언트 재사용 수정

- 하드코딩된 30초 만료를 제거하고 oAuthCredentialVo.getIntervalSec() 기준으로
  복원 (미설정 시 24시간 폴백), 스케줄러 주기와 불일치하던 문제 해결
- execute() 호출마다 PoolingHttpClientConnectionManager/CloseableHttpClient를
  새로 만들고 즉시 닫던 것을, mTLS 여부+clientId 조합별로 1회만 생성해 재사용하도록
  변경. 이 서비스는 HttpClientAccessTokenServiceFactoryByDB에 싱글턴으로 캐시되어
  재사용되므로 인스턴스 필드로 안전하게 캐시 가능

src/main/java/com/eactive/eai/custom/authoutbound/client/impl/DJBErpNsmapiAccessTokenService.java

@@ -10,6 +10,7 @@ import java.security.UnrecoverableKeyException;
 import java.security.cert.CertificateException;
 import java.util.Date;
 import java.util.Properties;
+import java.util.concurrent.ConcurrentHashMap;
 
 import javax.net.ssl.SSLContext;
 
@@ -62,6 +63,13 @@ public class DJBErpNsmapiAccessTokenService implements HttpClientAccessTokenServ
 
 	private static boolean testMode = TestModeChecker.isTestMode();
 
+	/**
+	 * mTLS 여부/clientId 조합별로 CloseableHttpClient(및 내부 PoolingHttpClientConnectionManager)를
+	 * 1회만 생성해 재사용한다. 이 서비스 인스턴스는 HttpClientAccessTokenServiceFactoryByDB에
+	 * className 기준으로 캐시되어 재사용되므로, 이 필드도 인스턴스 생명주기 동안 안전하게 재사용된다.
+	 */
+	private final ConcurrentHashMap<String, CloseableHttpClient> httpClientCache = new ConcurrentHashMap<>();
+
 	/**
 	 * 1. 기능 : 법인검증 토큰 발급에 사용 2. 처리 개요 : - 속성 정보를 설정 하고 토큰 발급 URL 호출 한다. 3. 주의사항
 	 *  - JSON 방식
@@ -121,80 +129,11 @@ public class DJBErpNsmapiAccessTokenService implements HttpClientAccessTokenServ
 			logger.info("adapterGroupName. : {}, useMtls. : {}, clientId : {}", name, useMtls, clientId);
 		}
 
-		int maxTotalConnections = HttpClientAdapterServiceKey.DEFAULT_MAX_TOTAL_CONNECTIONS;
+		// mTLS 여부(및 clientId)별로 CloseableHttpClient를 재사용한다. 매 호출마다 새로 만들면
-		int maxHostConnections = HttpClientAdapterServiceKey.DEFAULT_MAX_CONNECTION_PER_HOST;
+		// PoolingHttpClientConnectionManager를 쓰는 의미가 없어지고 SSL 핸드셰이크 비용만 반복된다.
-
+		String httpClientCacheKey = useMtls ? "mtls:" + clientId : "default";
-		HttpOutTlsInfoVO mtlsInfo = null;
+		CloseableHttpClient httpClient = httpClientCache.computeIfAbsent(httpClientCacheKey,
-		SSLContext sslContext = null;
+				key -> buildHttpClient(useMtls, clientId, name));
-		PoolingHttpClientConnectionManagerBuilder cmBuilder = PoolingHttpClientConnectionManagerBuilder.create();
-		PoolingHttpClientConnectionManager connectionManager = null;
-
-		try {
-			if (useMtls) {
-				HttpOutTlsInfoManager tlsManager = HttpOutTlsInfoManager.getInstance();
-				if (StringUtils.isNotEmpty(clientId)) {
-					mtlsInfo = tlsManager.getHttpOutTlsInfo(clientId);
-				}
-			}
-
-			if (useMtls && mtlsInfo != null) {
-				String storeType = mtlsInfo.getStoreType();
-				String keyStoreInfo = mtlsInfo.getKeystoreInfo();
-				String keyStorePassword = mtlsInfo.getKeystorePassword();
-				String trustStoreInfo = mtlsInfo.getTruststoreInfo();
-				String trustStorePassword = mtlsInfo.getTruststorePassword();
-
-				String[] tlsVersions = null;
-				String[] cipherSuites = null;
-
-				if (StringUtils.isAnyEmpty(keyStoreInfo, keyStorePassword)) {
-					throw new Exception("mTLS keyStore config error");
-				}
-
-				boolean skipTrust = false;
-				if (StringUtils.isAnyEmpty(trustStoreInfo, trustStorePassword)) {
-					if (logger.isWarn())
-						logger.warn("Skip trustStore validation adapterGroupName : " + name);
-					skipTrust = true;
-				}
-
-				sslContext = HttpClient5SSLContextFactory.createMTLSContextFromContent(storeType, keyStoreInfo,
-						keyStorePassword, trustStoreInfo, trustStorePassword, skipTrust, tlsVersions, cipherSuites);
-
-				SSLConnectionSocketFactory sslSocketFactory = null;
-				if (testMode) {
-					sslSocketFactory = new SSLConnectionSocketFactory(sslContext, NoopHostnameVerifier.INSTANCE);
-				} else {
-					sslSocketFactory = new SSLConnectionSocketFactory(sslContext);
-				}
-				cmBuilder.setSSLSocketFactory(sslSocketFactory);
-			} else {
-				sslContext = SSLContextBuilder.create().loadTrustMaterial(new TrustAllStrategy()).build();
-				SSLConnectionSocketFactory sslSocketFactory = null;
-		        if(testMode) {
-		        	// Hostname verifier 비활성화 (테스트용)
-					sslSocketFactory = new SSLConnectionSocketFactory(
-					    sslContext
-					    , NoopHostnameVerifier.INSTANCE 
-					);
-		        }
-		        else {
-		        	sslSocketFactory = new SSLConnectionSocketFactory(
-						    sslContext						  
-						);
-		        }
-		        cmBuilder.setSSLSocketFactory(sslSocketFactory);
-			}
-		} catch (KeyManagementException | NoSuchAlgorithmException | KeyStoreException | CertificateException
-				| IOException | UnrecoverableKeyException e) {
-			throw new RuntimeException(e);
-		} catch (Exception e) {
-			throw new RuntimeException(e);
-		}
-
-		connectionManager = cmBuilder.build();
-		connectionManager.setMaxTotal(maxTotalConnections);
-		connectionManager.setDefaultMaxPerRoute(maxHostConnections);
 
 		//json body setting
 //		Map<String,Object> jsonMap = new HashMap<>();
@@ -203,7 +142,7 @@ public class DJBErpNsmapiAccessTokenService implements HttpClientAccessTokenServ
 //		ObjectMapper objMapper = new ObjectMapper();
 //		String authJsonBody = objMapper.writeValueAsString(jsonMap);
 
-		try (CloseableHttpClient httpClient = HttpClients.custom().setConnectionManager(connectionManager).build();) {
+		{
 			HttpPost httpPost = new HttpPost(uri);
 //			httpPost.setEntity(new StringEntity(authJsonBody));
 			httpPost.setHeader("Content-Type", contentType+" charset=" + encode);
@@ -266,10 +205,13 @@ public class DJBErpNsmapiAccessTokenService implements HttpClientAccessTokenServ
 						JsonNode data = responseJSON.path("data");
 						if(data.has("access_token")) {
 							String token = data.path("access_token").asText();
+							long intervalSec = oAuthCredentialVo.getIntervalSec() > 0
+									? oAuthCredentialVo.getIntervalSec()
+									: 24 * 60 * 60;
 							accessToken = new OAuth2AccessTokenVO();
 							accessToken.setAccessToken(token);
-							accessToken.setExpiration(new Date(currentTime + 30_000L));
+							accessToken.setExpiration(new Date(currentTime + intervalSec * 1000L));
-							logger.info("oauthToken =" + accessToken.toString());
+							logger.debug("oauthToken =" + accessToken.toString());
 							return accessToken;
 						} else {
 							throw new Exception("oauth token return null");
@@ -277,8 +219,6 @@ public class DJBErpNsmapiAccessTokenService implements HttpClientAccessTokenServ
 					} else {
 						throw new Exception("oauth token return null");
 					}
-//					accessToken.setExpiration(new Date(currentTime + oAuthCredentialVo.getIntervalSec() * 1000L));
-					
 				} else {
 					throw new Exception("oauth token return null");
 				}
@@ -289,6 +229,94 @@ public class DJBErpNsmapiAccessTokenService implements HttpClientAccessTokenServ
 		}
 	}
 
+	/**
+	 * mTLS 여부/clientId 조합에 맞는 SSLContext로 PoolingHttpClientConnectionManager와
+	 * CloseableHttpClient를 생성한다. httpClientCache에 의해 조합당 1회만 호출되며, 반환된
+	 * CloseableHttpClient는 재사용을 위해 닫지 않는다(닫으면 커넥션 풀이 함께 종료된다).
+	 */
+	private CloseableHttpClient buildHttpClient(boolean useMtls, String clientId, String adapterGroupName) {
+		int maxTotalConnections = HttpClientAdapterServiceKey.DEFAULT_MAX_TOTAL_CONNECTIONS;
+		int maxHostConnections = HttpClientAdapterServiceKey.DEFAULT_MAX_CONNECTION_PER_HOST;
+
+		HttpOutTlsInfoVO mtlsInfo = null;
+		SSLContext sslContext = null;
+		PoolingHttpClientConnectionManagerBuilder cmBuilder = PoolingHttpClientConnectionManagerBuilder.create();
+
+		try {
+			if (useMtls) {
+				HttpOutTlsInfoManager tlsManager = HttpOutTlsInfoManager.getInstance();
+				if (StringUtils.isNotEmpty(clientId)) {
+					mtlsInfo = tlsManager.getHttpOutTlsInfo(clientId);
+				}
+			}
+
+			if (useMtls && mtlsInfo != null) {
+				String storeType = mtlsInfo.getStoreType();
+				String keyStoreInfo = mtlsInfo.getKeystoreInfo();
+				String keyStorePassword = mtlsInfo.getKeystorePassword();
+				String trustStoreInfo = mtlsInfo.getTruststoreInfo();
+				String trustStorePassword = mtlsInfo.getTruststorePassword();
+
+				String[] tlsVersions = null;
+				String[] cipherSuites = null;
+
+				if (StringUtils.isAnyEmpty(keyStoreInfo, keyStorePassword)) {
+					throw new Exception("mTLS keyStore config error");
+				}
+
+				boolean skipTrust = false;
+				if (StringUtils.isAnyEmpty(trustStoreInfo, trustStorePassword)) {
+					if (logger.isWarn())
+						logger.warn("Skip trustStore validation adapterGroupName : " + adapterGroupName);
+					skipTrust = true;
+				}
+
+				sslContext = HttpClient5SSLContextFactory.createMTLSContextFromContent(storeType, keyStoreInfo,
+						keyStorePassword, trustStoreInfo, trustStorePassword, skipTrust, tlsVersions, cipherSuites);
+
+				SSLConnectionSocketFactory sslSocketFactory = null;
+				if (testMode) {
+					sslSocketFactory = new SSLConnectionSocketFactory(sslContext, NoopHostnameVerifier.INSTANCE);
+				} else {
+					sslSocketFactory = new SSLConnectionSocketFactory(sslContext);
+				}
+				cmBuilder.setSSLSocketFactory(sslSocketFactory);
+			} else {
+				sslContext = SSLContextBuilder.create().loadTrustMaterial(new TrustAllStrategy()).build();
+				SSLConnectionSocketFactory sslSocketFactory = null;
+		        if(testMode) {
+		        	// Hostname verifier 비활성화 (테스트용)
+					sslSocketFactory = new SSLConnectionSocketFactory(
+					    sslContext
+					    , NoopHostnameVerifier.INSTANCE
+					);
+		        }
+		        else {
+		        	sslSocketFactory = new SSLConnectionSocketFactory(
+						    sslContext
+						);
+		        }
+		        cmBuilder.setSSLSocketFactory(sslSocketFactory);
+			}
+		} catch (KeyManagementException | NoSuchAlgorithmException | KeyStoreException | CertificateException
+				| IOException | UnrecoverableKeyException e) {
+			throw new RuntimeException(e);
+		} catch (Exception e) {
+			throw new RuntimeException(e);
+		}
+
+		PoolingHttpClientConnectionManager connectionManager = cmBuilder.build();
+		connectionManager.setMaxTotal(maxTotalConnections);
+		connectionManager.setDefaultMaxPerRoute(maxHostConnections);
+
+		if (logger.isInfo()) {
+			logger.info("DJBErpNsmapiAccessTokenService] HttpClient(재사용) 생성. adapterGroupName={}, useMtls={}, clientId={}",
+					adapterGroupName, useMtls, clientId);
+		}
+
+		return HttpClients.custom().setConnectionManager(connectionManager).build();
+	}
+
 	/**
 	 * URL에 경로를 추가합니다. 중복되는 슬래시를 방지합니다.
 	 *