From 3b636a85e68a2f8986047bc3d2689fb772b429c8 Mon Sep 17 00:00:00 2001
From: teddy <teddy.kim.kim@tf.dabeeo.com>
Date: Fri, 30 Jan 2026 14:18:57 +0900
Subject: [PATCH] =?UTF-8?q?wmts=20=EC=88=98=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../cd/kamcoback/layer/dto/WmsLayerInfo.java  | 157 +--------
 .../cd/kamcoback/layer/dto/WmtsLayerInfo.java | 329 +++---------------
 .../kamcoback/layer/service/WmtsService.java  | 132 +++----
 3 files changed, 109 insertions(+), 509 deletions(-)

diff --git a/src/main/java/com/kamco/cd/kamcoback/layer/dto/WmsLayerInfo.java b/src/main/java/com/kamco/cd/kamcoback/layer/dto/WmsLayerInfo.java
index 5fbf0647..03fa3a44 100755
--- a/src/main/java/com/kamco/cd/kamcoback/layer/dto/WmsLayerInfo.java
+++ b/src/main/java/com/kamco/cd/kamcoback/layer/dto/WmsLayerInfo.java
@@ -2,171 +2,46 @@ package com.kamco.cd.kamcoback.layer.dto;
 
 import java.util.ArrayList;
 import java.util.List;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
 
 /** WMS 레이어 정보를 담는 DTO 클래스 */
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
 public class WmsLayerInfo {
+
   private String name;
   private String title;
   private String abstractText;
-  private List<String> keywords;
+
+  private List<String> keywords = new ArrayList<>();
   private BoundingBox boundingBox;
-  private List<String> crs; // 지원하는 좌표계 목록
 
-  @Override
-  public String toString() {
-    return "WmsLayerInfo{"
-        + "name='"
-        + name
-        + '\''
-        + ", title='"
-        + title
-        + '\''
-        + ", abstractText='"
-        + abstractText
-        + '\''
-        + ", keywords="
-        + keywords
-        + ", boundingBox="
-        + boundingBox
-        + ", crs="
-        + crs
-        + '}';
-  }
+  /** 지원하는 좌표계 목록 */
+  private List<String> crs = new ArrayList<>();
 
-  public WmsLayerInfo() {
-    this.keywords = new ArrayList<>();
-    this.crs = new ArrayList<>();
-  }
-
-  // Getters and Setters
-  public String getName() {
-    return name;
-  }
-
-  public void setName(String name) {
-    this.name = name;
-  }
-
-  public String getTitle() {
-    return title;
-  }
-
-  public void setTitle(String title) {
-    this.title = title;
-  }
-
-  public String getAbstractText() {
-    return abstractText;
-  }
-
-  public void setAbstractText(String abstractText) {
-    this.abstractText = abstractText;
-  }
-
-  public List<String> getKeywords() {
-    return keywords;
-  }
-
-  public void setKeywords(List<String> keywords) {
-    this.keywords = keywords;
-  }
+  /* ===== convenience methods ===== */
 
   public void addKeyword(String keyword) {
     this.keywords.add(keyword);
   }
 
-  public BoundingBox getBoundingBox() {
-    return boundingBox;
-  }
-
-  public void setBoundingBox(BoundingBox boundingBox) {
-    this.boundingBox = boundingBox;
-  }
-
-  public List<String> getCrs() {
-    return crs;
-  }
-
-  public void setCrs(List<String> crs) {
-    this.crs = crs;
-  }
-
   public void addCrs(String crsValue) {
     this.crs.add(crsValue);
   }
 
   /** BoundingBox 정보를 담는 내부 클래스 */
+  @Data
+  @NoArgsConstructor
+  @AllArgsConstructor
   public static class BoundingBox {
+
     private String crs;
     private double minX;
     private double minY;
     private double maxX;
     private double maxY;
-
-    public BoundingBox(String crs, double minX, double minY, double maxX, double maxY) {
-      this.crs = crs;
-      this.minX = minX;
-      this.minY = minY;
-      this.maxX = maxX;
-      this.maxY = maxY;
-    }
-
-    // Getters and Setters
-    public String getCrs() {
-      return crs;
-    }
-
-    public void setCrs(String crs) {
-      this.crs = crs;
-    }
-
-    public double getMinX() {
-      return minX;
-    }
-
-    public void setMinX(double minX) {
-      this.minX = minX;
-    }
-
-    public double getMinY() {
-      return minY;
-    }
-
-    public void setMinY(double minY) {
-      this.minY = minY;
-    }
-
-    public double getMaxX() {
-      return maxX;
-    }
-
-    public void setMaxX(double maxX) {
-      this.maxX = maxX;
-    }
-
-    public double getMaxY() {
-      return maxY;
-    }
-
-    public void setMaxY(double maxY) {
-      this.maxY = maxY;
-    }
-
-    @Override
-    public String toString() {
-      return "BoundingBox{"
-          + "crs='"
-          + crs
-          + '\''
-          + ", minX="
-          + minX
-          + ", minY="
-          + minY
-          + ", maxX="
-          + maxX
-          + ", maxY="
-          + maxY
-          + '}';
-    }
   }
 }
diff --git a/src/main/java/com/kamco/cd/kamcoback/layer/dto/WmtsLayerInfo.java b/src/main/java/com/kamco/cd/kamcoback/layer/dto/WmtsLayerInfo.java
index a4f30c41..53e5c216 100755
--- a/src/main/java/com/kamco/cd/kamcoback/layer/dto/WmtsLayerInfo.java
+++ b/src/main/java/com/kamco/cd/kamcoback/layer/dto/WmtsLayerInfo.java
@@ -2,84 +2,40 @@ package com.kamco.cd.kamcoback.layer.dto;
 
 import java.util.ArrayList;
 import java.util.List;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
 
 /** WMTS 레이어 정보를 담는 DTO 클래스 */
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
 public class WmtsLayerInfo {
 
-  public String identifier;
-  public String title;
-  public String abstractText;
-  public List<String> keywords = new ArrayList<>();
-  public BoundingBox boundingBox;
-  public List<String> formats = new ArrayList<>();
-  public List<TileMatrixSetLink> tileMatrixSetLinks = new ArrayList<>();
-  public List<ResourceUrl> resourceUrls = new ArrayList<>();
-  public List<Style> styles = new ArrayList<>();
-  // add
-  public List<String> matrixIds = new ArrayList<>(); // 20250130
-  public String workspace; // 20250130
+  private String identifier;
+  private String title;
+  private String abstractText;
+
+  private List<String> keywords = new ArrayList<>();
+  private BoundingBox boundingBox;
+
+  private List<String> formats = new ArrayList<>();
+  private List<TileMatrixSetLink> tileMatrixSetLinks = new ArrayList<>();
+  private List<ResourceUrl> resourceUrls = new ArrayList<>();
+  private List<Style> styles = new ArrayList<>();
+
+  // add (2025-01-30)
+  private List<String> matrixIds = new ArrayList<>();
+  private String workspace;
+
+  /* ===== convenience methods ===== */
 
   public void addMatrixId(String matrixId) {
     this.matrixIds.add(matrixId);
   }
 
-  public List<String> getMatrixIds() {
-    return matrixIds;
-  }
-
-  public void setWorkspace(String workspace) {
-    this.workspace = workspace;
-  }
-
-  public String getWorkspace() {
-    return workspace;
-  }
-
-  public void setIdentifier(String identifier) {
-    this.identifier = identifier;
-  }
-
-  public void setTitle(String title) {
-    this.title = title;
-  }
-
-  public void setAbstractText(String abstractText) {
-    this.abstractText = abstractText;
-  }
-
-  public void setBoundingBox(BoundingBox boundingBox) {
-    this.boundingBox = boundingBox;
-  }
-
-  @Override
-  public String toString() {
-    return "WmtsLayerInfo{"
-        + "identifier='"
-        + identifier
-        + '\''
-        + ", title='"
-        + title
-        + '\''
-        + ", abstractText='"
-        + abstractText
-        + '\''
-        + ", keywords="
-        + keywords
-        + ", boundingBox="
-        + boundingBox
-        + ", formats="
-        + formats
-        + ", tileMatrixSetLinks="
-        + tileMatrixSetLinks
-        + ", resourceUrls="
-        + resourceUrls
-        + ", styles="
-        + styles
-        + '}';
-  }
-
-  public void addKeyword(String keywowrd) {
-    this.keywords.add(keywowrd);
+  public void addKeyword(String keyword) {
+    this.keywords.add(keyword);
   }
 
   public void addFormat(String format) {
@@ -99,246 +55,47 @@ public class WmtsLayerInfo {
   }
 
   /** BoundingBox 정보를 담는 내부 클래스 */
+  @Data
+  @NoArgsConstructor
+  @AllArgsConstructor
   public static class BoundingBox {
-
-    public String crs;
-    public double lowerCornerX;
-    public double lowerCornerY;
-    public double upperCornerX;
-    public double upperCornerY;
-
-    public BoundingBox() {}
-
-    public BoundingBox(
-        String crs,
-        double lowerCornerX,
-        double lowerCornerY,
-        double upperCornerX,
-        double upperCornerY) {
-      this.crs = crs;
-      this.lowerCornerX = lowerCornerX;
-      this.lowerCornerY = lowerCornerY;
-      this.upperCornerX = upperCornerX;
-      this.upperCornerY = upperCornerY;
-    }
-
-    // Getters and Setters
-    public String getCrs() {
-      return crs;
-    }
-
-    public void setCrs(String crs) {
-      this.crs = crs;
-    }
-
-    public double getLowerCornerX() {
-      return lowerCornerX;
-    }
-
-    public void setLowerCornerX(double lowerCornerX) {
-      this.lowerCornerX = lowerCornerX;
-    }
-
-    public double getLowerCornerY() {
-      return lowerCornerY;
-    }
-
-    public void setLowerCornerY(double lowerCornerY) {
-      this.lowerCornerY = lowerCornerY;
-    }
-
-    public double getUpperCornerX() {
-      return upperCornerX;
-    }
-
-    public void setUpperCornerX(double upperCornerX) {
-      this.upperCornerX = upperCornerX;
-    }
-
-    public double getUpperCornerY() {
-      return upperCornerY;
-    }
-
-    public void setUpperCornerY(double upperCornerY) {
-      this.upperCornerY = upperCornerY;
-    }
-
-    @Override
-    public String toString() {
-      return "BoundingBox{"
-          + "crs='"
-          + crs
-          + '\''
-          + ", lowerCorner=["
-          + lowerCornerX
-          + ", "
-          + lowerCornerY
-          + ']'
-          + ", upperCorner=["
-          + upperCornerX
-          + ", "
-          + upperCornerY
-          + ']'
-          + '}';
-    }
+    private String crs;
+    private double lowerCornerX;
+    private double lowerCornerY;
+    private double upperCornerX;
+    private double upperCornerY;
   }
 
   /** ResourceURL 정보를 담는 내부 클래스 (타일 URL 템플릿) */
+  @Data
+  @NoArgsConstructor
+  @AllArgsConstructor
   public static class ResourceUrl {
-
     private String format;
     private String resourceType;
     private String template;
-
-    public ResourceUrl() {}
-
-    public ResourceUrl(String format, String resourceType, String template) {
-      this.format = format;
-      this.resourceType = resourceType;
-      this.template = template;
-    }
-
-    // Getters and Setters
-    public String getFormat() {
-      return format;
-    }
-
-    public void setFormat(String format) {
-      this.format = format;
-    }
-
-    public String getResourceType() {
-      return resourceType;
-    }
-
-    public void setResourceType(String resourceType) {
-      this.resourceType = resourceType;
-    }
-
-    public String getTemplate() {
-      return template;
-    }
-
-    public void setTemplate(String template) {
-      this.template = template;
-    }
-
-    @Override
-    public String toString() {
-      return "ResourceUrl{"
-          + "format='"
-          + format
-          + '\''
-          + ", resourceType='"
-          + resourceType
-          + '\''
-          + ", template='"
-          + template
-          + '\''
-          + '}';
-    }
   }
 
   /** Style 정보를 담는 내부 클래스 */
+  @Data
+  @NoArgsConstructor
+  @AllArgsConstructor
   public static class Style {
-
     private String identifier;
     private String title;
     private boolean isDefault;
-
-    public Style() {}
-
-    public Style(String identifier, String title, boolean isDefault) {
-      this.identifier = identifier;
-      this.title = title;
-      this.isDefault = isDefault;
-    }
-
-    // Getters and Setters
-    public String getIdentifier() {
-      return identifier;
-    }
-
-    public void setIdentifier(String identifier) {
-      this.identifier = identifier;
-    }
-
-    public String getTitle() {
-      return title;
-    }
-
-    public void setTitle(String title) {
-      this.title = title;
-    }
-
-    public boolean isDefault() {
-      return isDefault;
-    }
-
-    public void setDefault(boolean isDefault) {
-      this.isDefault = isDefault;
-    }
-
-    @Override
-    public String toString() {
-      return "Style{"
-          + "identifier='"
-          + identifier
-          + '\''
-          + ", title='"
-          + title
-          + '\''
-          + ", isDefault="
-          + isDefault
-          + '}';
-    }
   }
 
   /** TileMatrixSetLink 정보를 담는 내부 클래스 */
+  @Data
+  @NoArgsConstructor
+  @AllArgsConstructor
   public static class TileMatrixSetLink {
-
     private String tileMatrixSet;
-    private List<String> zoomLevels;
-
-    public TileMatrixSetLink() {
-      this.zoomLevels = new ArrayList<>();
-    }
-
-    public TileMatrixSetLink(String tileMatrixSet, List<String> zoomLevels) {
-      this.tileMatrixSet = tileMatrixSet;
-      this.zoomLevels = zoomLevels != null ? zoomLevels : new ArrayList<>();
-    }
-
-    // Getters and Setters
-    public String getTileMatrixSet() {
-      return tileMatrixSet;
-    }
-
-    public void setTileMatrixSet(String tileMatrixSet) {
-      this.tileMatrixSet = tileMatrixSet;
-    }
-
-    public List<String> getZoomLevels() {
-      return zoomLevels;
-    }
-
-    public void setZoomLevels(List<String> zoomLevels) {
-      this.zoomLevels = zoomLevels;
-    }
+    private List<String> zoomLevels = new ArrayList<>();
 
     public void addZoomLevel(String zoomLevel) {
       this.zoomLevels.add(zoomLevel);
     }
-
-    @Override
-    public String toString() {
-      return "TileMatrixSetLink{"
-          + "tileMatrixSet='"
-          + tileMatrixSet
-          + '\''
-          + ", zoomLevels="
-          + zoomLevels
-          + '}';
-    }
   }
 }
diff --git a/src/main/java/com/kamco/cd/kamcoback/layer/service/WmtsService.java b/src/main/java/com/kamco/cd/kamcoback/layer/service/WmtsService.java
index 95861f35..6bf9f081 100644
--- a/src/main/java/com/kamco/cd/kamcoback/layer/service/WmtsService.java
+++ b/src/main/java/com/kamco/cd/kamcoback/layer/service/WmtsService.java
@@ -41,7 +41,7 @@ public class WmtsService {
     List<String> titles = new ArrayList<>();
 
     for (WmtsLayerInfo layer : layers) {
-      titles.add(layer.title);
+      titles.add(layer.getTitle()); // ✅ getter로 변경
     }
     return titles;
   }
@@ -60,9 +60,9 @@ public class WmtsService {
   public List<WmtsLayerInfo> getAllLayers(String geoserverUrl, String workspace) {
     List<WmtsLayerInfo> layers = new ArrayList<>();
     try {
-      // 1. XML 문서 로드 및 파싱
       String capabilitiesUrl =
           geoserverUrl + WMTS_GEOSERVER_URL + workspace + WMTS_CAPABILITIES_URL;
+
       DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
       factory.setNamespaceAware(true);
       DocumentBuilder builder = factory.newDocumentBuilder();
@@ -71,12 +71,10 @@ public class WmtsService {
       XPathFactory xPathFactory = XPathFactory.newInstance();
       XPath xpath = xPathFactory.newXPath();
 
-      // 2. 모든 Layer 노드 검색
       String expression = "//*[local-name()='Layer']";
       NodeList layerNodes =
           (NodeList) xpath.compile(expression).evaluate(doc, XPathConstants.NODESET);
 
-      // 3. 모든 레이어를 파싱하여 리스트에 추가
       for (int i = 0; i < layerNodes.getLength(); i++) {
         Node layerNode = layerNodes.item(i);
         String title = getChildValue(layerNode, "Title");
@@ -96,28 +94,25 @@ public class WmtsService {
   }
 
   /**
-   * WMTS Capabilities URL에서 특정 타이틀의 레이어 정보를 가져옵니다. // * @param capabilitiesUrl 예:
-   * http://localhost:8080/geoserver/gwc/service/wmts?REQUEST=GetCapabilities
+   * WMTS Capabilities URL에서 특정 타이틀의 레이어 정보를 가져옵니다.
    *
    * @param geoserverUrl 예: http://localhost:8080
-   * @param targetTitle 찾고자 하는 레이어의 Title (예: "My Maps")
+   * @param targetTitle 찾고자 하는 레이어의 Title
    */
   public WmtsLayerInfo getLayerInfoByTitle(
       String geoserverUrl, String workspace, String targetTitle) {
     try {
-      // 1. XML 문서 로드 및 파싱
       String capabilitiesUrl =
           geoserverUrl + WMTS_GEOSERVER_URL + workspace + WMTS_CAPABILITIES_URL;
+
       DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
-      factory.setNamespaceAware(true); // 네임스페이스 인식
+      factory.setNamespaceAware(true);
       DocumentBuilder builder = factory.newDocumentBuilder();
       Document doc = builder.parse(new URL(capabilitiesUrl).openStream());
 
       XPathFactory xPathFactory = XPathFactory.newInstance();
       XPath xpath = xPathFactory.newXPath();
 
-      // 2. 모든 Layer 노드 검색 (네임스페이스 무시하고 local-name으로 검색)
-      // GeoServer WMTS에서 Layer는 <Contents> -> <Layer> 구조임
       String expression = "//*[local-name()='Layer']";
       NodeList layerNodes =
           (NodeList) xpath.compile(expression).evaluate(doc, XPathConstants.NODESET);
@@ -125,10 +120,7 @@ public class WmtsService {
       for (int i = 0; i < layerNodes.getLength(); i++) {
         Node layerNode = layerNodes.item(i);
 
-        // 3. Title 확인
         String title = getChildValue(layerNode, "Title");
-
-        // 타이틀이 일치하면 객체 매핑 시작
         if (title != null && title.trim().equals(targetTitle)) {
           return parseLayerNode(workspace, layerNode, title);
         }
@@ -139,38 +131,38 @@ public class WmtsService {
       throw new RuntimeException("WMTS 정보 조회 중 오류 발생: " + e.getMessage());
     }
 
-    return null; // 찾지 못한 경우
+    return null;
   }
 
-  // 레이어 노드를 Java 객체로 변환 20250130
+  // 레이어 노드를 Java 객체로 변환 (2025-01-30)
   private WmtsLayerInfo parseLayerNode(String workspace, Node layerNode, String title) {
     WmtsLayerInfo info = new WmtsLayerInfo();
-    info.workspace = workspace; // 20250130
-    info.title = title;
-    info.identifier = getChildValue(layerNode, "Identifier");
-    info.abstractText = getChildValue(layerNode, "Abstract");
+
+    info.setWorkspace(workspace); // 20250130
+    info.setTitle(title);
+    info.setIdentifier(getChildValue(layerNode, "Identifier"));
+    info.setAbstractText(getChildValue(layerNode, "Abstract"));
 
     // Keywords 파싱
-    // 구조: <ows:Keywords><ows:Keyword>...</ows:Keyword></ows:Keywords>
-    info.keywords = getChildValues(layerNode, "Keywords", "Keyword");
+    info.setKeywords(getChildValues(layerNode, "Keywords", "Keyword"));
 
     // BoundingBox 파싱 (WGS84BoundingBox 기준)
-    info.boundingBox = parseBoundingBox(layerNode);
+    info.setBoundingBox(parseBoundingBox(layerNode));
 
     // Formats 파싱
-    info.formats = getChildValuesDirect(layerNode, "Format");
+    info.setFormats(getChildValuesDirect(layerNode, "Format"));
 
     // TileMatrixSetLink 파싱 (TileMatrixSet + Zoom Levels)
-    info.tileMatrixSetLinks = parseTileMatrixSetLinks(layerNode);
+    info.setTileMatrixSetLinks(parseTileMatrixSetLinks(layerNode));
 
-    // TileMatrixSetLimits에서 줌 레벨 추출 (개별 zoom 리스트)
-    info.matrixIds = parseMatrixIds(layerNode); // 20260130
+    // TileMatrixSetLimits에서 줌 레벨 추출
+    info.setMatrixIds(parseMatrixIds(layerNode)); // 20260130
 
     // ResourceURL 파싱
-    info.resourceUrls = parseResourceUrls(layerNode);
+    info.setResourceUrls(parseResourceUrls(layerNode));
 
     // Styles 파싱
-    info.styles = parseStyles(layerNode);
+    info.setStyles(parseStyles(layerNode));
 
     return info;
   }
@@ -178,38 +170,40 @@ public class WmtsService {
   // --- Helper Methods ---
 
   private WmtsLayerInfo.BoundingBox parseBoundingBox(Node layerNode) {
-    // 보통 <ows:WGS84BoundingBox>를 찾음
     Node bboxNode = findChildNode(layerNode, "WGS84BoundingBox");
     if (bboxNode == null) bboxNode = findChildNode(layerNode, "BoundingBox");
 
-    if (bboxNode != null) {
-      WmtsLayerInfo.BoundingBox bbox = new WmtsLayerInfo.BoundingBox();
-      bbox.crs = getAttributeValue(bboxNode, "crs"); // WGS84는 보통 CRS 속성이 없을 수 있음(Default EPSG:4326)
+    if (bboxNode == null) return null;
 
-      String lowerCorner = getChildValue(bboxNode, "LowerCorner");
-      String upperCorner = getChildValue(bboxNode, "UpperCorner");
+    WmtsLayerInfo.BoundingBox bbox = new WmtsLayerInfo.BoundingBox();
 
-      if (lowerCorner != null) {
-        String[] coords = lowerCorner.split(" ");
-        bbox.lowerCornerX = Double.parseDouble(coords[0]);
-        bbox.lowerCornerY = Double.parseDouble(coords[1]);
-      }
-      if (upperCorner != null) {
-        String[] coords = upperCorner.split(" ");
-        bbox.upperCornerX = Double.parseDouble(coords[0]);
-        bbox.upperCornerY = Double.parseDouble(coords[1]);
-      }
-      return bbox;
+    bbox.setCrs(getAttributeValue(bboxNode, "crs"));
+
+    String lowerCorner = getChildValue(bboxNode, "LowerCorner");
+    String upperCorner = getChildValue(bboxNode, "UpperCorner");
+
+    if (lowerCorner != null) {
+      String[] coords = lowerCorner.trim().split("\\s+");
+      bbox.setLowerCornerX(Double.parseDouble(coords[0]));
+      bbox.setLowerCornerY(Double.parseDouble(coords[1]));
     }
-    return null;
+
+    if (upperCorner != null) {
+      String[] coords = upperCorner.trim().split("\\s+");
+      bbox.setUpperCornerX(Double.parseDouble(coords[0]));
+      bbox.setUpperCornerY(Double.parseDouble(coords[1]));
+    }
+
+    return bbox;
   }
 
   private List<WmtsLayerInfo.ResourceUrl> parseResourceUrls(Node layerNode) {
     List<WmtsLayerInfo.ResourceUrl> list = new ArrayList<>();
     NodeList children = layerNode.getChildNodes();
+
     for (int i = 0; i < children.getLength(); i++) {
       Node node = children.item(i);
-      if (node.getNodeName().contains("ResourceURL")) { // local-name check simplification
+      if (node.getNodeName().contains("ResourceURL")) {
         WmtsLayerInfo.ResourceUrl url = new WmtsLayerInfo.ResourceUrl();
         url.setFormat(getAttributeValue(node, "format"));
         url.setResourceType(getAttributeValue(node, "resourceType"));
@@ -223,6 +217,7 @@ public class WmtsService {
   private List<WmtsLayerInfo.Style> parseStyles(Node layerNode) {
     List<WmtsLayerInfo.Style> styles = new ArrayList<>();
     NodeList children = layerNode.getChildNodes();
+
     for (int i = 0; i < children.getLength(); i++) {
       Node node = children.item(i);
       if (node.getNodeName().endsWith("Style")) {
@@ -236,34 +231,23 @@ public class WmtsService {
     return styles;
   }
 
-  /**
-   * TileMatrixSetLimits에서 줌 레벨을 추출합니다. 예: "EPSG:4326:0" → "0", "EPSG:4326:1" → "1"
-   *
-   * @param layerNode Layer 노드
-   * @return 줌 레벨 문자열 리스트
-   */
+  /** TileMatrixSetLimits에서 줌 레벨을 추출합니다. 예: "EPSG:4326:0" → "0" */
   private List<String> parseMatrixIds(Node layerNode) {
     List<String> matrixIds = new ArrayList<>();
     NodeList children = layerNode.getChildNodes();
 
-    // 모든 TileMatrixSetLink 찾기
     for (int i = 0; i < children.getLength(); i++) {
       Node node = children.item(i);
       if (node.getNodeName().contains("TileMatrixSetLink")) {
-        // TileMatrixSetLimits 찾기
         Node limitsNode = findChildNode(node, "TileMatrixSetLimits");
         if (limitsNode != null) {
           NodeList limitsList = limitsNode.getChildNodes();
-          // 각 TileMatrixLimits 처리
           for (int j = 0; j < limitsList.getLength(); j++) {
             Node limitNode = limitsList.item(j);
             if (limitNode.getNodeName().contains("TileMatrixLimits")) {
-              // TileMatrix 또는 Identifier 값 추출
               String identifier = getChildValue(limitNode, "TileMatrix");
-              if (identifier == null) {
-                identifier = getChildValue(limitNode, "Identifier");
-              }
-              // 마지막 콜론 이후 값(줌 레벨) 추출
+              if (identifier == null) identifier = getChildValue(limitNode, "Identifier");
+
               if (identifier != null && identifier.contains(":")) {
                 String[] parts = identifier.split(":");
                 String zoomLevel = parts[parts.length - 1];
@@ -278,25 +262,16 @@ public class WmtsService {
     return matrixIds;
   }
 
-  /**
-   * TileMatrixSetLink 정보를 파싱합니다. 각 TileMatrixSetLink에서 TileMatrixSet 이름과 줌 레벨들을 추출합니다.
-   *
-   * @param layerNode Layer 노드
-   * @return TileMatrixSetLink 객체 리스트
-   */
   private List<WmtsLayerInfo.TileMatrixSetLink> parseTileMatrixSetLinks(Node layerNode) {
     List<WmtsLayerInfo.TileMatrixSetLink> links = new ArrayList<>();
     NodeList children = layerNode.getChildNodes();
 
-    // 모든 TileMatrixSetLink 찾기
     for (int i = 0; i < children.getLength(); i++) {
       Node node = children.item(i);
       if (node.getNodeName().contains("TileMatrixSetLink")) {
 
-        // TileMatrixSet 이름 추출
         String tileMatrixSet = getChildValue(node, "TileMatrixSet");
 
-        // 줌 레벨들 추출
         List<String> zoomLevels = new ArrayList<>();
         Node limitsNode = findChildNode(node, "TileMatrixSetLimits");
         if (limitsNode != null) {
@@ -304,12 +279,9 @@ public class WmtsService {
           for (int j = 0; j < limitsList.getLength(); j++) {
             Node limitNode = limitsList.item(j);
             if (limitNode.getNodeName().contains("TileMatrixLimits")) {
-              // TileMatrix 또는 Identifier 값 추출
               String identifier = getChildValue(limitNode, "TileMatrix");
-              if (identifier == null) {
-                identifier = getChildValue(limitNode, "Identifier");
-              }
-              // 마지막 콜론 이후 값(줌 레벨) 추출
+              if (identifier == null) identifier = getChildValue(limitNode, "Identifier");
+
               if (identifier != null && identifier.contains(":")) {
                 String[] parts = identifier.split(":");
                 String zoomLevel = parts[parts.length - 1];
@@ -319,7 +291,6 @@ public class WmtsService {
           }
         }
 
-        // TileMatrixSetLink 객체 생성 및 추가
         if (tileMatrixSet != null) {
           WmtsLayerInfo.TileMatrixSetLink link =
               new WmtsLayerInfo.TileMatrixSetLink(tileMatrixSet, zoomLevels);
@@ -331,16 +302,15 @@ public class WmtsService {
     return links;
   }
 
-  // 특정 노드 아래의 자식 태그 값 추출 (예: <Title>값)
   private String getChildValue(Node parent, String childName) {
     Node child = findChildNode(parent, childName);
     return (child != null) ? child.getTextContent() : null;
   }
 
-  // 특정 노드 아래의 반복되는 자식 구조 값 추출 (예: Keywords -> Keyword)
   private List<String> getChildValues(Node parent, String wrapperName, String childName) {
     List<String> results = new ArrayList<>();
     Node wrapper = findChildNode(parent, wrapperName);
+
     if (wrapper != null) {
       NodeList children = wrapper.getChildNodes();
       for (int i = 0; i < children.getLength(); i++) {
@@ -353,10 +323,10 @@ public class WmtsService {
     return results;
   }
 
-  // Wrapper 없이 바로 반복되는 값 추출 (예: Format)
   private List<String> getChildValuesDirect(Node parent, String childName) {
     List<String> results = new ArrayList<>();
     NodeList children = parent.getChildNodes();
+
     for (int i = 0; i < children.getLength(); i++) {
       Node node = children.item(i);
       if (node.getNodeName().endsWith(childName)) {
@@ -366,12 +336,10 @@ public class WmtsService {
     return results;
   }
 
-  // 이름으로 자식 노드 찾기 (Local Name 기준)
   private Node findChildNode(Node parent, String localName) {
     NodeList children = parent.getChildNodes();
     for (int i = 0; i < children.getLength(); i++) {
       Node node = children.item(i);
-      // 네임스페이스 접두사(ows:, wmts:)를 무시하고 태그 이름 확인
       if (node.getNodeName().endsWith(":" + localName) || node.getNodeName().equals(localName)) {
         return node;
       }