Android Open Source - MinerStatus Config Service Impl

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Back to project page MinerStatus.

License

The source code is released under:

Apache License

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Java Source Code

package me.davidgreene.minerstatus.service;
/*  w w  w . j a  va 2 s  .c o  m*/
import me.davidgreene.minerstatus.MinerStatusApp;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;

public class ConfigServiceImpl implements ConfigService {

  private MinerStatusApp app;
  
  public ConfigServiceImpl(Context context){
    this.app = ((MinerStatusApp)context);
  }
  
  private final String SELECT_CONFIG_VALUE = "select value from config where key=?";
  
  @Override
  public String getConfigValue(String key) {
    Cursor cursor = null;
    try{
      cursor = getDBr().rawQuery(SELECT_CONFIG_VALUE, new String[]{key});
      if (cursor.moveToNext()){
        return cursor.getString(0);
      } else {
        return null;
      }
    } catch (Exception e){
      return null;
    } finally{
      if (cursor != null){
        cursor.close();
      }
    }    
  }
  
  @Override
  public void setConfigValue(String key, String value) {
    deleteConfigValue(key);
    ContentValues values = new ContentValues();
    values.put("key", key);
    values.put("value", value);  
    getDBw().insert("config", null, values);
  }
  
  @Override
  public void deleteConfigValue(String key) {
    getDBw().delete("config", "key=?", new String[]{key});
  }
  
    private SQLiteDatabase getDBw(){
        return app.getDbHelper().getWritableDatabase();
    }  
    private SQLiteDatabase getDBr(){
        return app.getDbHelper().getReadableDatabase();
    }

}

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