From 1145c1199d487311639f28af7fbfe13428d218de Mon Sep 17 00:00:00 2001
From: "Harry M. You" <myonghyoyou@gmail.com>
Date: Fri, 5 Dec 2025 11:26:22 +0900
Subject: [PATCH] =?UTF-8?q?Tif,=20Twf,=20GdalInfo=20=ED=8C=8C=EC=9D=BC=20?=
 =?UTF-8?q?=EC=B2=B4=ED=81=AC=20=EA=B3=B5=ED=86=B5=20=EC=B6=94=EA=B0=80?=
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---
 build.gradle                                  | 10 ++
 .../kamcoback/common/utils/FIleChecker.java   | 91 +++++++++++++++++++
 2 files changed, 101 insertions(+)

diff --git a/build.gradle b/build.gradle
index 60e3428d..d6193233 100644
--- a/build.gradle
+++ b/build.gradle
@@ -23,6 +23,7 @@ configurations {
 
 repositories {
   mavenCentral()
+  maven { url "https://repo.osgeo.org/repository/release/" }
 }
 
 dependencies {
@@ -40,6 +41,11 @@ dependencies {
   implementation 'org.locationtech.jts.io:jts-io-common:1.20.0'
   implementation 'org.locationtech.jts:jts-core:1.19.0'
   implementation 'org.hibernate:hibernate-spatial:6.2.7.Final'
+  implementation 'org.geotools:gt-main:30.0'
+  implementation("org.geotools:gt-geotiff:30.0") {
+    exclude group: "javax.media", module: "jai_core"
+  }
+  implementation 'org.geotools:gt-epsg-hsql:30.0'
 
   //  QueryDSL JPA
   implementation 'com.querydsl:querydsl-jpa:5.0.0:jakarta'
@@ -75,6 +81,10 @@ dependencies {
 
 }
 
+configurations.configureEach {
+  exclude group: 'javax.media', module: 'jai_core'
+}
+
 tasks.named('test') {
   useJUnitPlatform()
 }
diff --git a/src/main/java/com/kamco/cd/kamcoback/common/utils/FIleChecker.java b/src/main/java/com/kamco/cd/kamcoback/common/utils/FIleChecker.java
index e36f2edd..065a8770 100644
--- a/src/main/java/com/kamco/cd/kamcoback/common/utils/FIleChecker.java
+++ b/src/main/java/com/kamco/cd/kamcoback/common/utils/FIleChecker.java
@@ -1,14 +1,22 @@
 package com.kamco.cd.kamcoback.common.utils;
 
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
 import java.io.IOException;
 import java.io.InputStream;
+import java.io.InputStreamReader;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
+import java.util.ArrayList;
+import java.util.List;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
+import org.geotools.coverage.grid.GridCoverage2D;
+import org.geotools.gce.geotiff.GeoTiffReader;
 
 public class FIleChecker {
 
@@ -64,4 +72,87 @@ public class FIleChecker {
     return actualHash.equalsIgnoreCase(expectedHash);
   }
 
+
+  public static boolean checkTfw(File file) {
+    if (!file.exists()) {
+      return false;
+    }
+
+    // 1. 파일의 모든 라인을 읽어옴
+    List<Double> lines = new ArrayList<>();
+    try (BufferedReader br = new BufferedReader(new FileReader(file))) {
+      String line;
+      while ((line = br.readLine()) != null) {
+        if (!line.trim().isEmpty()) { // 빈 줄 제외
+          lines.add(Double.parseDouble(line.trim()));
+        }
+      }
+    }catch (IOException ignored) {
+      return false;
+    }
+
+    // 2. 6줄이 맞는지 확인
+    if (lines.size() < 6) {
+      //System.out.println("유효하지 않은 TFW 파일입니다. (데이터 부족)");
+      return false;
+    }
+
+    return true;
+  }
+
+  public static boolean checkGeoTiff(File file) {
+    GeoTiffReader reader = null;
+    try {
+      // 1. 파일 포맷 및 헤더 확인
+      reader = new GeoTiffReader(file);
+
+      // 2. 실제 데이터 로딩 (여기서 파일 깨짐 여부 확인됨)
+      // null을 넣으면 전체 영역을 읽지 않고 메타데이터 위주로 체크하여 빠름
+      GridCoverage2D coverage = reader.read(null);
+
+      if (coverage == null) return false;
+
+      // 3. GIS 필수 정보(좌표계)가 있는지 확인
+      //if (coverage.getCoordinateReferenceSystem() == null) {
+        // GeoTIFF가 아니라 일반 TIFF일 수도 있음(이미지는 정상이지만, 좌표계(CRS) 정보가 없습니다.)
+      //}
+
+      return true;
+
+    } catch (Exception e) {
+      System.err.println("손상된 TIF 파일입니다: " + e.getMessage());
+      return false;
+    } finally {
+      // 리소스 해제 (필수)
+      if (reader != null) reader.dispose();
+    }
+  }
+
+  public static String cmmndGdalInfo(String filePath) {
+
+    String resStr = "";
+    boolean hasDriver = false;
+
+    try {
+      // 리눅스/맥용
+      ProcessBuilder pb = new ProcessBuilder("sh", "-c", "gdalinfo "+filePath+" | grep -i 'Geo'");
+      //윈도우용
+      //ProcessBuilder pb = new ProcessBuilder("cmd.exe", "/c", "gdalinfo " + filePath + " | findstr /i \"Geo\"");
+      Process process = pb.start();
+
+      BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
+      String line;
+
+      while ((line = reader.readLine()) != null) {
+        if (line.contains("Driver: GTiff")) hasDriver = true;
+        //if (line.contains("Size is")) hasSize = true;
+        //if (line.contains("FAILURE:")) hasFailure = true;
+      }
+    } catch (Exception e) {
+      e.printStackTrace();
+    }
+
+    return hasDriver;
+  }
+
 }