Updated Code

Amol/API/External API/ExternalAPI.java

+package ibase.webitm.ejb.sys;
+
+import java.rmi.RemoteException;
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+import javax.ejb.Stateless;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+
+import ibase.utility.BaseLogger;
+import ibase.utility.CommonConstants;
+import ibase.utility.E12GenericUtility;
+import ibase.utility.GenericUtility;
+import ibase.utility.UserInfoBean;
+import ibase.webitm.ejb.ITMDBAccessEJB;
+import ibase.webitm.ejb.ValidatorEJB;
+import ibase.webitm.utility.ITMException;
+
+@Stateless
+public class ExternalAPI extends ValidatorEJB {
+	protected static String database = CommonConstants.DB_NAME;
+
+    @Override
+    public String wfValData(String xmlString, String xmlString1, String xmlString2, String objContext, String editFlag,
+            String xtraParams) throws RemoteException, ITMException {
+        BaseLogger.log("3", null, null, "Inside the ExternalAPI class is::");
+		ITMDBAccessEJB itmDBAccessEJB = new ITMDBAccessEJB();
+
+        Document dom = null;
+        Document dom1 = null;
+        Document dom2 = null;
+        String errString = "";
+        GenericUtility genericUtility = GenericUtility.getInstance();
+        try {
+            BaseLogger.log("3", null, null, "xmlString:::" + xmlString);
+
+            if (xmlString != null && xmlString.length() != 0) {
+                dom = genericUtility.parseString(xmlString);
+            }
+            if (xmlString1 != null && xmlString1.length() != 0) {
+                dom1 = genericUtility.parseString(xmlString1);
+            }
+            if (xmlString2 != null && xmlString2.length() != 0) {
+                dom2 = genericUtility.parseString(xmlString2);
+            }
+            errString = wfValData(dom, dom1, dom2, objContext, editFlag, xtraParams);
+        } catch (Exception e) {
+            // Handle the exception appropriately
+        }
+        return errString;
+    }
+
+    @Override
+    public String wfValData(Document dom, Document dom1, Document dom2, String objContext, String editFlag,
+            String xtraParams) throws RemoteException, ITMException {
+        BaseLogger.log("3", null, null, " inside the wfvaldata::"  );
+        
+        Connection conn = null;
+		conn = getConnection();
+		PreparedStatement pst = null;
+		ResultSet rs = null;
+		ITMDBAccessEJB itmDBAccessEJB = new ITMDBAccessEJB();
+
+
+        NodeList parentNodeList = null;
+        NodeList childNodeList = null;
+        Node parentNode = null;
+        Node childNode = null;
+        UserInfoBean userInfo = super.getUserInfo();
+        int ctr = 0, currentFormNo = 0, childNodeListLength = 0;
+        String childNodeName = null;
+        GenericUtility genericUtility = GenericUtility.getInstance();
+		E12GenericUtility utility = new E12GenericUtility();
+
+
+        String errString = "";
+        String userId = "";
+        try {
+            userId = getValueFromXTRA_PARAMS(xtraParams, "loginCode");
+            SimpleDateFormat sdf = new SimpleDateFormat(genericUtility.getApplDateFormat());
+            if (objContext != null && objContext.trim().length() > 0) {
+                currentFormNo = Integer.parseInt(objContext);
+            }
+            BaseLogger.log("3", null, userInfo.getLoginCode(),
+                    "*************Validation for empty inputs Formno=" + currentFormNo);
+            switch (currentFormNo) {
+                case 1:
+                    parentNodeList = dom.getElementsByTagName("Detail" + currentFormNo);
+
+                    parentNode = parentNodeList.item(0);
+                    childNodeList = parentNode.getChildNodes();
+                    childNodeListLength = childNodeList.getLength();
+
+                    for (ctr = 0; ctr < childNodeListLength; ctr++) {
+                        childNode = childNodeList.item(ctr);
+                        BaseLogger.log("3", null, null, "Child Node=>" + ctr + "=>" + childNode);
+                        childNodeName = childNode.getNodeName().trim();
+                        BaseLogger.log("3", null, null, "Child Node Name=>" + ctr + "=>" + childNodeName);
+                        BaseLogger.log("3", null, null,
+                                "Child Node Value=>" + ctr + "=>" + genericUtility.getColumnValue(childNodeName, dom));
+                        if (childNodeName.equalsIgnoreCase("eff_from")) {
+                            Date fromDate = sdf.parse(genericUtility.getColumnValue("eff_from", dom));
+                            Date toDate = sdf.parse(genericUtility.getColumnValue("valid_upto", dom));
+                			BaseLogger.log("3", null, null, "fromDate is [" + fromDate + "]");
+                			BaseLogger.log("3", null, null, "toDate is [" + toDate + "]");
+
+                            if (fromDate.compareTo(toDate) > 0) {
+                                errString = getErrorString("valid_upto", "DATEXEPT", userId);
+                            }
+                        }
+                    
+                    
+                   if (childNodeName.equalsIgnoreCase("enterprise")) {
+                        BaseLogger.log("3", null, null, "--gsb-- FirstChild::" + childNode.getFirstChild());
+                        {
+                            int objCount = 0;
+                            String enterpriseValue = E12GenericUtility.checkNull(utility.getColumnValue("enterprise", dom));
+                            System.out.println("Inside the enterprise validation::" + database);
+                            System.out.println("21042022-02 object name :::[" + enterpriseValue + "]");
+                            String objSQL = "SELECT COUNT(*) AS COUNT FROM ENTERPRISE WHERE ENTERPRISE = '" + enterpriseValue + "'";
+
+                            // ... existing logic for querying the database
+
+                            if (objCount == 0) {
+                                errString = itmDBAccessEJB.getErrorString("enterprise", "INVLDENTPZ", userId, "", conn);
+                                break;
+                            }
+                        }
+                    }
+            }
+                    break;
+                // Add more cases as needed
+            } // Close the switch statement properly
+        } catch (Exception e) {
+            // Handle the exception appropriately
+        }
+        return errString;
+    }
+
+    public static String checkNull(String input) {
+        if (input == null || "null".equalsIgnoreCase(input) || "undefined".equalsIgnoreCase(input)) {
+            input = "";
+        }
+        return input.trim();
+    }
+}