/*
* Copyright (c) 2013, Will Szumski
* Copyright (c) 2013, Doug Szumski
*
* This file is part of Cyclismo.
*
* Cyclismo is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Cyclismo is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Cyclismo. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Copyright 2009 Google Inc.
*
* 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 org.cowboycoders.cyclismo.util;
/**
* The singleton class representing the extended encoding of chart data.
*/
public class ChartsExtendedEncoder {
// ChartServer data encoding in extended mode
private static final String CHARTSERVER_EXTENDED_ENCODING_SEPARATOR = ",";
private static final String CHARTSERVER_EXTENDED_ENCODING =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-.";
private static final int CHARTSERVER_EXTENDED_SINGLE_CHARACTER_VALUES =
CHARTSERVER_EXTENDED_ENCODING.length();
private static final String MISSING_POINT_EXTENDED_ENCODING = "__";
private ChartsExtendedEncoder() { }
public static String getEncodedValue(int scaled) {
int index1 = scaled / CHARTSERVER_EXTENDED_SINGLE_CHARACTER_VALUES;
if (index1 < 0 || index1 >= CHARTSERVER_EXTENDED_SINGLE_CHARACTER_VALUES) {
return MISSING_POINT_EXTENDED_ENCODING;
}
int index2 = scaled % CHARTSERVER_EXTENDED_SINGLE_CHARACTER_VALUES;
if (index2 < 0 || index2 >= CHARTSERVER_EXTENDED_SINGLE_CHARACTER_VALUES) {
return MISSING_POINT_EXTENDED_ENCODING;
}
return String.valueOf(CHARTSERVER_EXTENDED_ENCODING.charAt(index1))
+ String.valueOf(CHARTSERVER_EXTENDED_ENCODING.charAt(index2));
}
public static String getSeparator() {
return CHARTSERVER_EXTENDED_ENCODING_SEPARATOR;
}
}