Merge "Initialize ConnectivityBlobStore and ConnectivityBlobStoreTest" into main

/*

 * 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);

    }

}

/*

 * 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());

    }

}

include /core/java/com/android/internal/net/OWNERS