SQLite Android Bindings

package org.sqlite.database;


import android.content.Context;
import android.database.Cursor;
import android.os.AsyncTask;
import android.support.test.InstrumentationRegistry;
import android.support.test.runner.AndroidJUnit4;
import android.util.Log;

import junit.framework.Assert;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;

import org.sqlite.database.sqlite.SQLiteConnection;
import org.sqlite.database.sqlite.SQLiteDatabase;
import org.sqlite.database.sqlite.SQLiteOpenHelper;

import java.io.File;
import java.io.FileInputStream;
import java.util.Arrays;

import static org.junit.Assert.*;


class MyHelper extends SQLiteOpenHelper {

    public static final String DATABASE_NAME = "mydb.db";

    public MyHelper(Context ctx){
        super(ctx, "file:" + ctx.getDatabasePath(DATABASE_NAME).getAbsolutePath() + "?key=secret", null, 1);
    }
    public void onConfigure(SQLiteDatabase db){


        db.enableWriteAheadLogging();




    }
    public void onCreate(SQLiteDatabase db){
        db.execSQL("CREATE TABLE t1(x)");
    }
    public void onUpgrade(SQLiteDatabase db, int iOld, int iNew){
    }
}


/**
 * Created by dan on 5/3/17.
 */
@RunWith(AndroidJUnit4.class)
public class SeeTest1 {
    private Context mContext;

    /*
    ** Test if the database at path is encrypted or not. The db
    ** is assumed to be encrypted if the first 6 bytes are anything
    ** other than "SQLite".
    **
    ** If the test reveals that the db is encrypted, return the string
    ** "encrypted". Otherwise, "unencrypted".
    */
    public String db_is_encrypted(String path) throws Exception {
      FileInputStream in = new FileInputStream(mContext.getDatabasePath(path));

      byte[] buffer = new byte[6];
      in.read(buffer, 0, 6);

      String res = "encrypted";
      if( Arrays.equals(buffer, (new String("SQLite")).getBytes()) ){
        res = "unencrypted";
      }
      return res;
    }

    @Before
    public void setup() throws Exception {

        System.loadLibrary("sqliteX");

        mContext = InstrumentationRegistry.getTargetContext();

        // delete any existing database
        File databaseFile = mContext.getDatabasePath(MyHelper.DATABASE_NAME);
        databaseFile.mkdirs();
        if (databaseFile.exists()) {
            databaseFile.delete();
        }
    }

    @Test
    public void testEncryptedWalMode() throws Exception {
        // create database
        final MyHelper helper = new MyHelper(mContext);
        helper.getWritableDatabase();

        // verify that WAL journal mode is set
        final Cursor pragmaCursor = helper.getWritableDatabase().rawQuery("PRAGMA journal_mode", null);
        pragmaCursor.moveToFirst();
        Assert.assertEquals("wal", pragmaCursor.getString(pragmaCursor.getColumnIndex("journal_mode")));
        pragmaCursor.close();

        // start long running transaction
        AsyncTask.execute(new Runnable() {
            @Override
            public void run() {
                helper.getWritableDatabase().beginTransactionNonExclusive();

        //try to read something from the database while the slow transaction is running
        helper.getWritableDatabase().execSQL("SELECT * FROM t1");

        //verify that the operation didn't wait until the 3000ms long operation finished
        if (System.currentTimeMillis() - startTime > 3000) {
            throw new Exception("WAL mode isn't working corectly - read operation was blocked");
        }

        if( SQLiteConnection.hasCodec() ){
          Assert.assertEquals("encrypted", db_is_encrypted(MyHelper.DATABASE_NAME));
        } else {
          Assert.assertEquals("unencrypted", db_is_encrypted(MyHelper.DATABASE_NAME));
        }
    }
}

                mConfiguration.label,
                SQLiteDebug.DEBUG_SQL_STATEMENTS, SQLiteDebug.DEBUG_SQL_TIME);

        setPageSize();
        setForeignKeyModeFromConfiguration();
        setJournalSizeLimit();
	setAutoCheckpointInterval();

        setWalModeFromConfiguration();
        setLocaleFromConfiguration();


        // Register custom functions.
        final int functionCount = mConfiguration.customFunctions.size();
        for (int i = 0; i < functionCount; i++) {
            SQLiteCustomFunction function = mConfiguration.customFunctions.get(i);
            nativeRegisterCustomFunction(mConnectionPtr, function);
        }

    }

    private static int getPriority(int connectionFlags) {
        return (connectionFlags & CONNECTION_FLAG_INTERACTIVE) != 0 ? 1 : 0;
    }

    private void setMaxConnectionPoolSizeLocked() {

        if ((mConfiguration.openFlags & SQLiteDatabase.ENABLE_WRITE_AHEAD_LOGGING) != 0) {

            mMaxConnectionPoolSize = SQLiteGlobal.getWALConnectionPoolSize();
        } else {
            // TODO: We don't actually need to restrict the connection pool size to 1
            // for non-WAL databases.  There might be reasons to use connection pooling
            // with other journal modes.  For now, enabling connection pooling and
            // using WAL are the same thing in the API.
            mMaxConnectionPoolSize = 1;

     * @return True if the database is in-memory.
     */
    public boolean isInMemoryDb() {
        return path.equalsIgnoreCase(MEMORY_DB_PATH);
    }

    private static String stripPathForLogs(String path) {
        /* Strip off all URI parameters. */
        int iIdx = path.indexOf('?');
        if( iIdx>=0 ){
            path = (String) path.subSequence(0, iIdx);
        }

        if (path.indexOf('@') == -1) {
            return path;
        }
        return EMAIL_IN_DB_PATTERN.matcher(path).replaceAll("XX@YY");
    }
}

#
LOCAL_CFLAGS += -DSQLITE_TEMP_STORE=3

LOCAL_CFLAGS += -DHAVE_CONFIG_H -DKHTML_NO_EXCEPTIONS -DGKWQ_NO_JAVA
LOCAL_CFLAGS += -DNO_SUPPORT_JS_BINDING -DQT_NO_WHEELEVENT -DKHTML_NO_XBL
LOCAL_CFLAGS += -U__APPLE__
LOCAL_CFLAGS += -DHAVE_STRCHRNUL=0
LOCAL_CFLAGS += -DSQLITE_USE_URI=1
LOCAL_CFLAGS += -Wno-unused-parameter -Wno-int-to-pointer-cast
LOCAL_CFLAGS += -Wno-uninitialized -Wno-parentheses
LOCAL_CPPFLAGS += -Wno-conversion-null


ifeq ($(TARGET_ARCH), arm)
	LOCAL_CFLAGS += -DPACKED="__attribute__ ((packed))"
else
	LOCAL_CFLAGS += -DPACKED=""