From 8dec47ff63ab0f67ecfcd012c2ae6868cc2de084 Mon Sep 17 00:00:00 2001
From: Atharva Ombase <94031822+atharvaombase@users.noreply.github.com>
Date: Tue, 15 Apr 2025 04:10:27 +0530
Subject: [PATCH] Feat: Added table to list and view HDFS files with dynamic
 navigation

---
 Frontend/src/components/FileList.jsx | 134 +++++++++++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 Frontend/src/components/FileList.jsx

diff --git a/Frontend/src/components/FileList.jsx b/Frontend/src/components/FileList.jsx
new file mode 100644
index 0000000..22e4d1a
--- /dev/null
+++ b/Frontend/src/components/FileList.jsx
@@ -0,0 +1,134 @@
+import React, { useState, useEffect } from "react";
+import PropTypes from "prop-types";
+
+const FileTable = ({ initialPath }) => {
+  const [currentPath, setCurrentPath] = useState(initialPath || "/");
+  const [files, setFiles] = useState([]);
+
+  // Helpers to parse entry
+  const getType = (entry) =>
+    entry.trim().startsWith("📁") ? "Folder" : "File";
+  const getName = (entry) => entry.trim().replace(/^📁\s*|^📄\s*/, "");
+  const isFile = (entry) => getType(entry) === "File";
+
+  // Fetch and show only top-level entries (indentation = 0)
+  const fetchFiles = async () => {
+    try {
+      const response = await fetch(
+        `http://192.168.29.61:8080/api/hdfs/listFiles?hdfsPath=${currentPath}`
+      );
+      const data = await response.json();
+
+      // Filter entries: only those without leading spaces
+      const filtered = data.filter(
+        (entry) => entry.match(/^ */)[0].length === 0
+      );
+      setFiles(filtered);
+    } catch (error) {
+      console.error("Failed to fetch files:", error);
+      setFiles([]);
+    }
+  };
+
+  useEffect(() => {
+    fetchFiles();
+  }, [currentPath]);
+
+  // Navigate into a folder
+  const handleOpenFolder = (folderName) => {
+    const newPath =
+      currentPath === "/" ? `/${folderName}` : `${currentPath}/${folderName}`;
+    setCurrentPath(newPath);
+  };
+
+  // Go up one level
+  const goBack = () => {
+    if (currentPath === "/") return;
+    const parts = currentPath.split("/").filter(Boolean);
+    parts.pop();
+    setCurrentPath(parts.length === 0 ? "/" : `/${parts.join("/")}`);
+  };
+
+  return (
+    <div className="relative overflow-x-auto shadow-md rounded-lg">
+      <div className="flex items-center justify-between px-6 py-4 bg-blue-100 text-black font-medium">
+        <span>Path: {currentPath}</span>
+        {currentPath !== "/" && (
+          <button onClick={goBack} className="text-blue-600 hover:underline">
+            ⬅️ Go Back
+          </button>
+        )}
+      </div>
+      <table className="w-full text-sm text-left text-black">
+        <thead className="text-xs text-black uppercase bg-blue-100">
+          <tr>
+            <th scope="col" className="px-6 py-3">
+              File Name
+            </th>
+            <th scope="col" className="px-6 py-3">
+              Type
+            </th>
+            <th scope="col" className="px-6 py-3">
+              Action
+            </th>
+          </tr>
+        </thead>
+        <tbody>
+          {files.length === 0 ? (
+            <tr>
+              <td colSpan="3" className="px-6 py-4 text-gray-600">
+                No files found.
+              </td>
+            </tr>
+          ) : (
+            files.map((entry, idx) => {
+              const name = getName(entry);
+              const type = getType(entry);
+              const encodedPath = encodeURIComponent(`${currentPath}/${name}`);
+              const downloadUrl = `http://192.168.29.61:8080/api/hdfs/downloadFile?hdfsPath=${encodedPath}&localPath=E:/testdownload/${name}&kalas=${
+                currentPath.split("/")[1] || "user"
+              }`;
+
+              return (
+                <tr
+                  key={idx}
+                  className="even:bg-blue-50 odd:bg-white border-b border-blue-200"
+                >
+                  <td className="px-6 py-4 font-medium whitespace-nowrap">
+                    {name}
+                  </td>
+                  <td className="px-6 py-4">{type}</td>
+                  <td className="px-6 py-4">
+                    {isFile(entry) ? (
+                      <a
+                        href={downloadUrl}
+                        className="font-medium text-blue-600 hover:underline"
+                        target="_blank"
+                        rel="noopener noreferrer"
+                      >
+                        Download
+                      </a>
+                    ) : (
+                      <button
+                        onClick={() => handleOpenFolder(name)}
+                        className="font-medium text-blue-600 hover:underline"
+                      >
+                        Open
+                      </button>
+                    )}
+                  </td>
+                </tr>
+              );
+            })
+          )}
+        </tbody>
+      </table>
+    </div>
+  );
+};
+
+FileTable.propTypes = {
+  initialPath: PropTypes.string,
+};
+
+export default FileTable;