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/*
* Copyright 2007 Daniel Spiewak.
* Copyright 2013 gitblit.com.
*
* 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 com.gitblit.wicket.charting;
/**
* This class is a pristine fork of org.wicketstuff.googlecharts.ChartDataEncoding
* to bring the package-protected convert methods to SecureChart.
*
* @author Daniel Spiewak
*/
public enum SecureChartDataEncoding {
SIMPLE("s", "", ",") {
@Override
CharSequence convert(double value, double max) {
if (value < 0) {
return "_";
}
value = Math.round((CHARS.length() - 1) * value / max);
if (value > CHARS.length() - 1) {
throw new IllegalArgumentException(value + " is out of range for SIMPLE encoding");
}
return Character.toString(CHARS.charAt((int) value));
}
},
TEXT("t", ",", "|") {
@Override
CharSequence convert(double value, double max) {
if (value < 0) {
value = -1;
}
if (value > 100) {
throw new IllegalArgumentException(value + " is out of range for TEXT encoding");
}
return Double.toString(value);
}
},
EXTENDED("e", "", ",") {
@Override
CharSequence convert(double value, double max) {
if (value < 0) {
return "__";
}
value = Math.round(value);
if (value > (EXT_CHARS.length() - 1) * (EXT_CHARS.length() - 1)) {
throw new IllegalArgumentException(value + " is out of range for EXTENDED encoding");
}
int rem = (int) (value % EXT_CHARS.length());
int exp = (int) (value / EXT_CHARS.length());
return new StringBuilder().append(EXT_CHARS.charAt(exp)).append(EXT_CHARS.charAt(rem));
}
};
private static final String CHARS = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
private static final String EXT_CHARS = CHARS + "-_.";
private final String rendering, valueSeparator, setSeparator;
private SecureChartDataEncoding(String rendering, String valueSeparator, String setSeparator) {
this.rendering = rendering;
this.valueSeparator = valueSeparator;
this.setSeparator = setSeparator;
}
public String getRendering() {
return rendering;
}
public String getValueSeparator() {
return valueSeparator;
}
public String getSetSeparator() {
return setSeparator;
}
abstract CharSequence convert(double value, double max);
}
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