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/*
* Copyright 2011 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;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.TimeZone;
import com.gitblit.Keys;
import com.gitblit.utils.StringUtils;
import com.gitblit.wicket.GitBlitWebApp;
import com.gitblit.wicket.GitBlitWebSession;
/**
* Abstract parent class for different type of chart: bar, pie & line
*
* @author James Moger
*
*/
public abstract class Chart implements Serializable {
private static final long serialVersionUID = 1L;
final String tagId;
final String dataName;
final String title;
final String keyName;
final String valueName;
final List<ChartValue> values;
final List<ChartValue> highlights;
int width;
int height;
boolean showLegend;
String dateFormat = "MMM dd";
String clickUrl = null;
public Chart(String tagId, String title, String keyName, String valueName) {
this.tagId = tagId;
this.dataName = StringUtils.getSHA1(tagId).substring(0, 8);
this.title = title;
this.keyName = keyName;
this.valueName = valueName;
values = new ArrayList<ChartValue>();
highlights = new ArrayList<ChartValue>();
showLegend = true;
}
public void setWidth(int width) {
this.width = width;
}
public void setHeight(int height) {
this.height = height;
}
public void setShowLegend(boolean val) {
this.showLegend = val;
}
public void addValue(String name, int value) {
values.add(new ChartValue(name, value));
}
public void addValue(String name, float value) {
values.add(new ChartValue(name, value));
}
public void addValue(String name, double value) {
values.add(new ChartValue(name, (float) value));
}
public void addValue(Date date, int value) {
values.add(new ChartValue(String.valueOf(date.getTime()), value));
}
public void addHighlight(Date date, int value) {
highlights.add(new ChartValue(String.valueOf(date.getTime()), value));
}
protected abstract void appendChart(StringBuilder sb);
protected void line(StringBuilder sb, String line) {
sb.append(line);
sb.append('\n');
}
protected TimeZone getTimeZone() {
return GitBlitWebApp.get().settings().getBoolean(Keys.web.useClientTimezone, false) ? GitBlitWebSession.get()
.getTimezone() : GitBlitWebApp.get().getTimezone();
}
protected class ChartValue implements Serializable, Comparable<ChartValue> {
private static final long serialVersionUID = 1L;
final String name;
final float value;
ChartValue(String name, float value) {
this.name = name;
this.value = value;
}
@Override
public int compareTo(ChartValue o) {
// sorts the dataset by largest value first
if (value > o.value) {
return -1;
} else if (value < o.value) {
return 1;
}
return 0;
}
}
public String getDateFormat() {
return dateFormat;
}
public void setDateFormat(String dateFormat) {
this.dateFormat = dateFormat;
}
public String getClickUrl() {
return clickUrl;
}
public void setClickUrl(String clickUrl) {
this.clickUrl = clickUrl;
}
}
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