Merge "Initialize ConnectivityBlobStore and ConnectivityBlobStoreTest" into main

3 files changed, 129 insertions, 0 deletions

diff --git a/core/java/com/android/internal/net/ConnectivityBlobStore.java b/core/java/com/android/internal/net/ConnectivityBlobStore.java
new file mode 100644
index 000000000000..51997cf13546
--- /dev/null
+++ b/core/java/com/android/internal/net/ConnectivityBlobStore.java
@@ -0,0 +1,61 @@
+/*
+ * 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.internal.net;
+
+import android.database.sqlite.SQLiteDatabase;
+
+import com.android.internal.annotations.VisibleForTesting;
+
+import java.io.File;
+
+/**
+ * Database for storing blobs with a key of name strings.
+ * @hide
+ */
+public class ConnectivityBlobStore {
+    private static final String TAG = ConnectivityBlobStore.class.getSimpleName();
+    private static final String TABLENAME = "blob_table";
+    private static final String ROOT_DIR = "/data/misc/connectivityblobdb/";
+
+    private static final String CREATE_TABLE =
+            "CREATE TABLE IF NOT EXISTS " + TABLENAME + " ("
+            + "owner INTEGER,"
+            + "name BLOB,"
+            + "blob BLOB,"
+            + "UNIQUE(owner, name));";
+
+    private final SQLiteDatabase mDb;
+
+    /**
+     * Construct a ConnectivityBlobStore object.
+     *
+     * @param dbName the filename of the database to create/access.
+     */
+    public ConnectivityBlobStore(String dbName) {
+        this(new File(ROOT_DIR + dbName));
+    }
+
+    @VisibleForTesting
+    public ConnectivityBlobStore(File file) {
+        final SQLiteDatabase.OpenParams params = new SQLiteDatabase.OpenParams.Builder()
+                .addOpenFlags(SQLiteDatabase.CREATE_IF_NECESSARY)
+                .addOpenFlags(SQLiteDatabase.ENABLE_WRITE_AHEAD_LOGGING)
+                .build();
+        mDb = SQLiteDatabase.openDatabase(file, params);
+        mDb.execSQL(CREATE_TABLE);
+    }
+}
diff --git a/core/tests/coretests/src/com/android/internal/net/ConnectivityBlobStoreTest.java b/core/tests/coretests/src/com/android/internal/net/ConnectivityBlobStoreTest.java
new file mode 100644
index 000000000000..e361ce3fb490
--- /dev/null
+++ b/core/tests/coretests/src/com/android/internal/net/ConnectivityBlobStoreTest.java
@@ -0,0 +1,67 @@
+/*
+ * 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.internal.net;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import android.content.Context;
+
+import androidx.test.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.filters.SmallTest;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.io.File;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class ConnectivityBlobStoreTest {
+    private static final String DATABASE_FILENAME = "ConnectivityBlobStore.db";
+
+    private Context mContext;
+    private File mFile;
+
+    private ConnectivityBlobStore createConnectivityBlobStore() {
+        return new ConnectivityBlobStore(mFile);
+    }
+
+    @Before
+    public void setUp() throws Exception {
+        mContext = InstrumentationRegistry.getContext();
+        mFile = mContext.getDatabasePath(DATABASE_FILENAME);
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        mContext.deleteDatabase(DATABASE_FILENAME);
+    }
+
+    @Test
+    public void testFileCreateDelete() {
+        assertFalse(mFile.exists());
+        createConnectivityBlobStore();
+        assertTrue(mFile.exists());
+
+        assertTrue(mContext.deleteDatabase(DATABASE_FILENAME));
+        assertFalse(mFile.exists());
+    }
+}
diff --git a/core/tests/coretests/src/com/android/internal/net/OWNERS b/core/tests/coretests/src/com/android/internal/net/OWNERS
new file mode 100644
index 000000000000..f51ba475ab63
--- /dev/null
+++ b/core/tests/coretests/src/com/android/internal/net/OWNERS
@@ -0,0 +1 @@
+include /core/java/com/android/internal/net/OWNERS