javaandroidsqlitesqlcipher-android

different Database library with same methods in different flavours Best Practice?


I have two different falvours in my Androdi app that should use different SQL implementations. One use:

android.database.sqlite.SQLiteDatabase

and second:

net.sqlcipher.database.SQLiteDatabase

I have methods like that:

getAll(SQLiteDatabase conn)

How should I solve this situation to avoid copy&paste? What is the best pratcice? I have few ideas: first one (the worst with a lot of copypaste) is to provide different methods :

 getAll(android.database.sqlite.SQLiteDatabase conn)
 getAll(net.sqlcipher.database.SQLiteDatabase conn)

second is to wrap this class with some other in every flavour importing proper database(aggregation, composition as SQLiteDatabase is final):

import android.database.sqlite.SQLiteDatabase;
public class SQLliteDatabaseFlavoured   {
     SQLiteDatabase sqLiteDatabase;
}

With usage:

getAll(SQLliteDatabaseFlavoured.SQLiteDatabase conn)

Solution

  • ok I finally found solution based on @Jim's answer. Big Thanks!

    It's not the cleanest but it wokrs. I create two tasks to copy files

    task copyNoEncryption << { 
    //copy to temp folder
    copy {
        from("src/com/sql")
        into("src/temp/sql")
    }
    //copy back to correct folder and replace string's
    copy {
        from("src/temp/sql")
        into("src/com/sql")
    
        filter {
     //you have to remember that first argument is REGEX and second is normal String
            String line ->
                line.replaceAll("before REGEX",
                        "after STRING")
        }
    }
    //delete temp folder
    delete("src/temp")
    }
    

    and second task working analogously

    task copyEncryption << {
    //same body but reverse string swap 
    //REMEMBER in replaceAll 1st arg is REGEX and second is String
    }
    

    now I'm adding execution this task before respectively flavor

    android.buildTypes.all{ theBuildType ->
    tasks.whenTaskAdded{ theTask ->
        if(theTask.name == "generateFlavorWithoutEncryptionr${theBuildType.name.capitalize()}Sources"){
            theTask.dependsOn "copyNoEncryption"
        }
        else if(theTask.name == "generateFlavourWithEncryption${theBuildType.name.capitalize()}Sources"){
            theTask.dependsOn "copyEncryption"
        }
    }
    }
    

    Now every time when I'm building flavor I have correct libraries. Hope that someday this will help someone.