ADD file via upload

ApprovalContext.java

@@ -0,0 +1,72 @@
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+
+public class ApprovalContext {
+    private List<ApprovalRecord> approvalHistory = new ArrayList<>();
+    private ApprovalStatus currentStatus = ApprovalStatus.PENDING;
+    private String rejectionReason;
+    private ApprovalLevel currentRequiredLevel;
+    
+    public void addApprovalRecord(Approver approver, boolean approved, String comment) {
+        ApprovalRecord record = new ApprovalRecord(
+            approver.getApproverName(), 
+            new Date(), 
+            approved, 
+            comment
+        );
+        approvalHistory.add(record);
+    }
+    
+    public List<ApprovalRecord> getApprovalHistory() {
+        return new ArrayList<>(approvalHistory);
+    }
+    
+    public ApprovalStatus getCurrentStatus() {
+        return currentStatus;
+    }
+    
+    public void setCurrentStatus(ApprovalStatus currentStatus) {
+        this.currentStatus = currentStatus;
+    }
+    
+    public String getRejectionReason() {
+        return rejectionReason;
+    }
+    
+    public void setRejectionReason(String rejectionReason) {
+        this.rejectionReason = rejectionReason;
+    }
+    
+    public ApprovalLevel getCurrentRequiredLevel() {
+        return currentRequiredLevel;
+    }
+    
+    public void setCurrentRequiredLevel(ApprovalLevel currentRequiredLevel) {
+        this.currentRequiredLevel = currentRequiredLevel;
+    }
+    
+    public static class ApprovalRecord {
+        private String approverName;
+        private Date approvalTime;
+        private boolean approved;
+        private String comment;
+        
+        public ApprovalRecord(String approverName, Date approvalTime, boolean approved, String comment) {
+            this.approverName = approverName;
+            this.approvalTime = approvalTime;
+            this.approved = approved;
+            this.comment = comment;
+        }
+        
+        @Override
+        public String toString() {
+            return "ApprovalRecord{" +
+                   "approverName='" + approverName + '\'' +
+                   ", time=" + approvalTime +
+                   ", approved=" + approved +
+                   ", comment='" + comment + '\'' +
+                   '}';
+        }
+    }
+}