로깅 개선 및 EAI 배치 가상 연동 작업 완료

src/main/java/com/eactive/ext/kjb/eai/EaiBatchMessage.java

@@ -0,0 +1,112 @@
+package com.eactive.ext.kjb.eai;
+
+import lombok.Getter;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.StringUtils;
+
+import java.nio.ByteBuffer;
+
+@Slf4j
+public class EaiBatchMessage {
+    @Getter
+    private String interfaceId = "";
+
+    @Getter
+    private String baseDate = "";
+
+    @Getter
+    private String count = "";
+
+    @Getter
+    private String resultCode = "";
+
+    @Getter
+    private String filename = "";
+
+
+    private String rawMessage = "";
+
+    private boolean isReadOnly = false;
+
+
+    private EaiBatchMessage() {}
+
+
+    public static EaiBatchMessage createRequest(String interfaceId, String filename) {
+        EaiBatchMessage message = new EaiBatchMessage();
+        message.interfaceId = interfaceId;
+        message.filename = filename;
+
+        return message;
+    }
+
+    public static EaiBatchMessage fromResponse(String rawMessage) {
+        EaiBatchMessage message = new EaiBatchMessage();
+        message.rawMessage = rawMessage;
+        message.isReadOnly = true;
+
+        if (rawMessage.length() >= 40) {
+            message.interfaceId = rawMessage.substring(0, 20).trim();
+            message.baseDate = rawMessage.substring(20, 28).trim();
+            message.count = rawMessage.substring(28, 38).trim();
+            message.resultCode = rawMessage.substring(38, 39).trim();
+            // filename 은 @@가 발견되면 이전 까지 trim / 발견되지 않으면 나머지 전체 그리고 trim
+            int endIdx = rawMessage.indexOf("@@", 39);
+            if (endIdx == -1) {
+                message.filename = rawMessage.substring(39).trim();
+            } else {
+                message.filename = rawMessage.substring(39, endIdx).trim();
+            }
+        }
+
+        if (StringUtils.isEmpty(message.interfaceId)) {
+            log.error("Invalid EAI Batch response message: interfaceId is empty. rawMessage={}", rawMessage);
+            throw new IllegalArgumentException("Invalid EAI Batch response message: interfaceId is empty");
+        }
+
+        return message;
+    }
+
+
+    @Override
+    public String toString() {
+        if (isReadOnly) {
+            return rawMessage;
+        } else {
+            ByteBuffer buffer = ByteBuffer.allocate(1024);
+            // 0~19 : 인터페이스ID (20)
+            buffer.put(fixedString(interfaceId, 20));
+            // 19-8: 기준일자 (8)
+            buffer.put(fixedString(baseDate, 8));
+            // 27-10 : 건수 (10)
+            buffer.put(fixedString(count, 10));
+            // 37-1 : 결과코드 (1)
+            buffer.put(fixedString(resultCode, 1));
+            // 38-100 : 파일명 (100)
+            buffer.put(fixedString(filename, 100));
+
+            // 종료 구분자 (2)
+            buffer.put("@@".getBytes());
+
+
+            return new String(buffer.array()).trim();
+        }
+    }
+
+    private byte[] fixedString(String str, int length) {
+        if (str == null) {
+            str = "";
+        }
+        byte[] strBytes = str.getBytes();
+        byte[] result = new byte[length];
+
+        int copyLength = Math.min(strBytes.length, length);
+        System.arraycopy(strBytes, 0, result, 0, copyLength);
+
+        for (int i = copyLength; i < length; i++) {
+            result[i] = ' ';
+        }
+
+        return result;
+    }
+}

src/main/java/com/eactive/ext/kjb/eai/KjbEaiBatchModule.java

@@ -0,0 +1,57 @@
+package com.eactive.ext.kjb.eai;
+
+import com.eactive.ext.kjb.common.KjbProperty;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.hc.client5.http.classic.methods.HttpGet;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.core5.http.io.entity.EntityUtils;
+
+import javax.validation.constraints.NotNull;
+import java.io.IOException;
+
+@Slf4j
+public class KjbEaiBatchModule {
+    private final KjbProperty property;
+    private final CloseableHttpClient httpClient;
+
+
+    public KjbEaiBatchModule(@NotNull KjbProperty property) {
+        if (property == null) {
+            throw new IllegalArgumentException("KjbProperty cannot be null");
+        }
+
+        this.property = property;
+
+        if (StringUtils.isNotEmpty(property.getEaiBatchUrl())) {
+            this.httpClient = HttpClients.createDefault();
+        } else {
+            this.httpClient = null;
+            log.warn("EAI_BATCH_URL 가 설정되지 않음. 실제 EAI 배치 연동 없이 동작함");
+        }
+    }
+
+    public EaiBatchMessage call(String interfaceId, String filename) throws IOException {
+        EaiBatchMessage reqMessage = EaiBatchMessage.createRequest(interfaceId, filename);
+        log.debug("EAI 배치 호출: {}", reqMessage);
+
+        if (this.httpClient != null) {
+            String url = property.getEaiBatchUrl() + "?eaibatMsg=" + reqMessage.toString();
+            final HttpGet httpGet = new HttpGet(url);
+
+            String message = httpClient.execute(httpGet, response -> EntityUtils.toString(response.getEntity(), "EUC-KR"));
+
+            EaiBatchMessage resMessage = EaiBatchMessage.fromResponse(message);
+            log.debug("EAI 배치 응답: {}", resMessage);
+            return resMessage;
+        } else {
+            log.info("EAI_BATCH_URL 이 설정되지 않아 실제 호출하지 않음. 요청 메시지: {}", reqMessage);
+
+            // 정상응답 리턴
+            EaiBatchMessage resMessage = EaiBatchMessage.fromResponse(String.format("%-20s%-8s%-10s%-1s%s@@", interfaceId, "", "0000000000", "1", "S:" + filename));
+            log.debug("EAI 배치 응답(모의): {}", resMessage);
+            return resMessage;
+        }
+    }
+}