/*
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* Copyright 2011 gitblit.com.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.gitblit.wicket.charting;
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import java.io.Serializable;
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import java.util.ArrayList;
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import java.util.List;
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import com.gitblit.utils.StringUtils;
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/**
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* Abstract parent class for Google Charts built with the Visualization API.
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*
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* @author James Moger
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*
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*/
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public abstract class GoogleChart implements Serializable {
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private static final long serialVersionUID = 1L;
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final String tagId;
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final String dataName;
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final String title;
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final String keyName;
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final String valueName;
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final List<ChartValue> values;
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int width;
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int height;
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boolean showLegend;
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public GoogleChart(String tagId, String title, String keyName, String valueName) {
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this.tagId = tagId;
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this.dataName = StringUtils.getSHA1(title).substring(0, 8);
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this.title = title;
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this.keyName = keyName;
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this.valueName = valueName;
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values = new ArrayList<ChartValue>();
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showLegend = true;
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}
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public void setWidth(int width) {
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this.width = width;
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}
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public void setHeight(int height) {
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this.height = height;
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}
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public void setShowLegend(boolean val) {
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this.showLegend = val;
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}
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public void addValue(String name, int value) {
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values.add(new ChartValue(name, value));
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}
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public void addValue(String name, float value) {
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values.add(new ChartValue(name, value));
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}
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public void addValue(String name, double value) {
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values.add(new ChartValue(name, (float) value));
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}
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protected abstract void appendChart(StringBuilder sb);
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protected void line(StringBuilder sb, String line) {
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sb.append(line);
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sb.append('\n');
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}
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protected class ChartValue implements Serializable, Comparable<ChartValue> {
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private static final long serialVersionUID = 1L;
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final String name;
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final float value;
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ChartValue(String name, float value) {
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this.name = name;
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this.value = value;
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}
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@Override
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public int compareTo(ChartValue o) {
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// sorts the dataset by largest value first
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if (value > o.value) {
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return -1;
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} else if (value < o.value) {
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return 1;
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}
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return 0;
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}
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}
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}
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