SVG파일 색상 변경 처리용 컨트롤러 추가

src/main/java/cokr/xit/fims/ResourceController.java

@@ -0,0 +1,132 @@
+package cokr.xit.fims;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.StringWriter;
+import java.net.URISyntaxException;
+import java.net.URLDecoder;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.transform.OutputKeys;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.dom.DOMSource;
+import javax.xml.transform.stream.StreamResult;
+
+import org.springframework.http.HttpHeaders;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.NamedNodeMap;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+import org.xml.sax.SAXException;
+
+import cokr.xit.foundation.Log;
+import cokr.xit.foundation.web.AbstractController;
+
+
+@Controller
+@RequestMapping(name = "리소스 파일 변환 처리 컨트롤러", value = "/mresources")
+public class ResourceController extends AbstractController {
+	
+	@GetMapping(name = "이미지 파일 색상 변경", value = "/image/**")
+	public void modifySvg(HttpServletRequest request, HttpServletResponse response) throws URISyntaxException, IOException, ParserConfigurationException, SAXException {
+        String requestURI = request.getRequestURI().toString();
+
+        String filepath = requestURI.replace("/mresources","/resources");
+        filepath = URLDecoder.decode(filepath);
+        filepath = request.getSession().getServletContext().getRealPath(filepath);
+        filepath = filepath.replace("\\","/");
+        String contextPath = request.getSession().getServletContext().getContextPath();
+        filepath = filepath.replace("webapp"+contextPath+"/resources", "webapp/resources");
+        filepath = "file:///"+filepath;
+
+        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
+        DocumentBuilder documentBuilder = factory.newDocumentBuilder();
+        Document document = documentBuilder.parse(filepath);
+        Element root = document.getDocumentElement();
+        NodeList nodeList = root.getChildNodes();
+
+        try {
+            String modify = request.getParameter("modify");
+            if(modify == null || modify.equals("")){
+
+            } else if(modify.equals("active")){
+               updateTagFillColor(nodeList, "green");
+            } else if(modify.equals("alert")){
+               updateTagFillColor(nodeList, "red");
+            }
+
+            String str4 = DocumentToString(document);
+            byte[] bytes = str4.getBytes();
+
+            response.setHeader(HttpHeaders.ACCEPT_RANGES, "bytes");
+            response.setHeader(HttpHeaders.CONTENT_TYPE, "image/svg+xml");
+            response.setHeader(HttpHeaders.CONNECTION, "keep-alive");
+            response.setHeader(HttpHeaders.ACCESS_CONTROL_ALLOW_CREDENTIALS, "true");
+            response.setHeader("Pragma", "no-cache");
+            response.setHeader(HttpHeaders.CACHE_CONTROL, "no-cache, must-revalidate");
+            response.setDateHeader(HttpHeaders.EXPIRES, 0);
+            response.setHeader(HttpHeaders.CONTENT_LENGTH, Integer.toString(bytes.length));
+            response.setContentType("image/svg+xml");
+
+            OutputStream os = response.getOutputStream();
+            os.write(bytes);
+            os.flush();
+            os.close();
+
+
+        } catch (Exception e){
+
+        }
+
+
+    }
+
+
+
+    public static String DocumentToString( Document doc )
+    {
+        try
+        {
+            StringWriter clsOutput = new StringWriter( );
+            Transformer clsTrans = TransformerFactory.newInstance( ).newTransformer( );
+
+            clsTrans.setOutputProperty( OutputKeys.OMIT_XML_DECLARATION, "no" );
+            clsTrans.setOutputProperty( OutputKeys.METHOD, "xml" );
+            clsTrans.setOutputProperty( OutputKeys.INDENT, "yes" );
+            clsTrans.setOutputProperty( OutputKeys.ENCODING, "UTF-8" );
+
+            clsTrans.transform( new DOMSource( doc ), new StreamResult( clsOutput ) );
+
+            return clsOutput.toString( );
+        }
+        catch( Exception ex )
+        {
+            return "";
+        }
+    }
+
+    private void updateTagFillColor(NodeList nodeList, String newFillColor) {
+
+        for (int i = 0; i < nodeList.getLength(); i++) {
+            Node node = nodeList.item(i);
+            NamedNodeMap namedNodeMap = node.getAttributes();
+            if(namedNodeMap != null && namedNodeMap.getLength() > 0){
+                for (int j = 0; j < namedNodeMap.getLength(); j++) {
+                    Node namedNode = namedNodeMap.item(j);
+                    if (namedNode.getNodeName().equalsIgnoreCase("fill")) {
+                        namedNode.setNodeValue(newFillColor); // Change the color of the fill attribute.
+                    }
+                }
+            }
+        }
+    }
+}