public boolean isDown(){
  if (mLocalPath != null && mLocalPath.length() > 0) {
    File file=new File(mLocalPath);
    return (file.exists());
  }
  return false;
}

public boolean isDown ( ) { if ( mLocalPath != null && mLocalPath . length ( ) > 0 ) { File file = new File ( mLocalPath ) ; return ( file . exists ( ) ) ; } return false ; }
use this to check if this file is available locally
