From 9af93249bdcabaee793bcb7b69d30a6b7c911bfb Mon Sep 17 00:00:00 2001
From: Sandro Montanari <sandrom@google.com>
Date: Thu, 10 Apr 2025 12:30:05 +0000
Subject: [PATCH] Remove unused DataStore class

Bug: 407940468
Test: atest NetworkSecurityUnitTests
Flag: com.android.net.ct.flags.certificate_transparency_service
Change-Id: I8338087263c3f61bad061ac7687cd20d51685e67
---
 .../com/android/server/net/ct/DataStore.java  | 116 ------------------
 1 file changed, 116 deletions(-)
 delete mode 100644 networksecurity/service/src/com/android/server/net/ct/DataStore.java

diff --git a/networksecurity/service/src/com/android/server/net/ct/DataStore.java b/networksecurity/service/src/com/android/server/net/ct/DataStore.java
deleted file mode 100644
index bd17199cdb..0000000000
--- a/networksecurity/service/src/com/android/server/net/ct/DataStore.java
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- * Copyright (C) 2024 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.android.server.net.ct;
-
-import android.util.Log;
-
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.util.Optional;
-import java.util.Properties;
-import java.util.Set;
-
-/** Class to persist data needed by CT. */
-class DataStore extends Properties {
-
-    private static final String TAG = "CertificateTransparency";
-
-    private static final long MAX_FILE_SIZE = 20 * 1024; // 20KB
-    private static final int MAX_KEY_SIZE = 50;
-    private final File mPropertyFile;
-
-    DataStore(File file) {
-        super();
-        mPropertyFile = file;
-    }
-
-    void load() {
-        if (!mPropertyFile.exists()) {
-            return;
-        }
-
-        if (!validatePropertyFile()) {
-            Log.e(TAG, "Invalid property file, not load it!");
-            delete();
-            return;
-        }
-
-        try (InputStream in = new FileInputStream(mPropertyFile)) {
-            load(in);
-            if (!validateProperties()) {
-                Log.e(TAG, "Invalid property store, clear it!");
-                delete();
-                return;
-            }
-        } catch (IOException | IllegalArgumentException e) {
-            Log.e(TAG, "Error loading property store", e);
-            delete();
-        }
-    }
-
-    private boolean validateProperties() {
-        Set<String> keys = stringPropertyNames();
-        for (String key : keys) {
-            if (key.length() > MAX_KEY_SIZE) {
-                Log.e(TAG, "Unexpected Property: " + key);
-                return false;
-            }
-        }
-        return true;
-    }
-
-    private boolean validatePropertyFile() {
-        if (mPropertyFile.length() > MAX_FILE_SIZE) {
-            Log.e(TAG, "Property file size exceeds " + MAX_FILE_SIZE + "!");
-            return false;
-        }
-        return true;
-    }
-
-    void store() {
-        try (FileOutputStream out = new FileOutputStream(mPropertyFile)) {
-            store(out, "");
-            out.getFD().sync();
-        } catch (IOException e) {
-            Log.e(TAG, "Error storing property store", e);
-        }
-    }
-
-    boolean delete() {
-        clear();
-        return mPropertyFile.delete();
-    }
-
-    long getPropertyLong(String key, long defaultValue) {
-        return Optional.ofNullable(getProperty(key)).map(Long::parseLong).orElse(defaultValue);
-    }
-
-    Object setPropertyLong(String key, long value) {
-        return setProperty(key, Long.toString(value));
-    }
-
-    int getPropertyInt(String key, int defaultValue) {
-        return Optional.ofNullable(getProperty(key)).map(Integer::parseInt).orElse(defaultValue);
-    }
-
-    Object setPropertyInt(String key, int value) {
-        return setProperty(key, Integer.toString(value));
-    }
-}