svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.expressionevaluator / org.gvsig.expressionevaluator.lib / org.gvsig.expressionevaluator.lib.impl / src / main / java / org / gvsig / expressionevaluator / impl / function / programming / CreateChartPanelFunction.java @ 46104
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package org.gvsig.expressionevaluator.impl.function.programming; |
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import java.awt.Dimension; |
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import java.util.ArrayList; |
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import java.util.HashMap; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.Objects; |
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import javax.json.JsonArray; |
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import javax.json.JsonObject; |
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import javax.json.JsonValue; |
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import org.apache.commons.lang3.Range; |
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import org.apache.commons.lang3.StringUtils; |
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import org.apache.commons.lang3.math.NumberUtils; |
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import org.gvsig.expressionevaluator.ExpressionRuntimeException; |
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import org.gvsig.expressionevaluator.Function; |
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import org.gvsig.expressionevaluator.Interpreter; |
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import org.gvsig.expressionevaluator.spi.AbstractFunction; |
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import org.gvsig.expressionevaluator.spi.JsonUtils; |
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import org.gvsig.tools.util.GetItemByKey; |
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import org.gvsig.tools.util.GetItemWithSize; |
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import org.jfree.chart.ChartFactory; |
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import org.jfree.chart.ChartPanel; |
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import org.jfree.chart.JFreeChart; |
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import org.jfree.chart.plot.PlotOrientation; |
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import org.jfree.data.category.DefaultCategoryDataset; |
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import org.jfree.data.statistics.BoxAndWhiskerItem; |
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import org.jfree.data.statistics.DefaultBoxAndWhiskerCategoryDataset; |
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import org.jfree.data.statistics.DefaultBoxAndWhiskerXYDataset; |
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public class CreateChartPanelFunction extends AbstractFunction { |
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public CreateChartPanelFunction() {
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super(
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Function.GROUP_PROGRAMMING, |
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"CREATE_CHARTPANEL",
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Range.between(1, 2), |
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"",
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"CREATE_CHARTPANEL" + "({{string}})", |
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null,
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"ChartPanel",
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false
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); |
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} |
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@Override
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public boolean allowConstantFolding() { |
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return false; |
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} |
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@Override
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public Object call(Interpreter interpreter, final Object[] args) throws Exception { |
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Object obj = getObject(args, 0); |
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if (obj == null) { |
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return null; |
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//throw new ExpressionRuntimeException("Null is not valid in "+FUNCTION_GETITEM+" function.");
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} |
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if (!(obj instanceof JsonObject)) { |
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obj = JsonUtils.toJsonObject(obj); |
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} |
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Iterable dataset = null; |
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if (args.length>0) { |
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Object obj1 = getObject(args, 1); |
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if ((obj1 instanceof GetItemWithSize)) { |
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GetItemWithSize values = (GetItemWithSize) obj1; |
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dataset = new Iterable() { |
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@Override
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public Iterator iterator() { |
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return new Iterator() { |
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int n = 0; |
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@Override
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public boolean hasNext() { |
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return n < values.size();
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} |
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@Override
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public Object next() { |
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return values.get(n++);
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} |
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}; |
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} |
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}; |
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} else if (obj1 instanceof Iterable) { |
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dataset = (Iterable) obj1;
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} else {
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throw new ExpressionRuntimeException("dataset type not supported"); |
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} |
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} |
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JsonObject jsonobj = ((JsonObject) obj); |
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ChartPanel graph = createGraph(jsonobj, dataset); |
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return graph;
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} |
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public ChartPanel createGraph(JsonObject json, Iterable<GetItemByKey> dataset) { |
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String chartType = json.getString("chartType").toLowerCase(); |
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switch (chartType) {
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case "boxandwhisker": { |
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String valueField = json.getString("valueField"); |
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HashMap<String, HashMap<String, List<Number>>> tree = new HashMap<String, HashMap<String, List<Number>>>(); |
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String field1 = json.getString("field1"); |
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String field2 = json.getString("field2"); |
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for (GetItemByKey element : dataset) {
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String rowValue = Objects.toString(element.get(field1), null); |
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String colValue = Objects.toString(element.get(field2), null); |
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double elementValue = NumberUtils.toDouble(Objects.toString(element.get(valueField), null)); |
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if (tree.containsKey(rowValue)) {
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HashMap<String, List<Number>> colTree = tree.get(rowValue); |
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if (colTree.containsKey(colValue)) {
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colTree.get(colValue).add(elementValue); |
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} else {
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ArrayList<Number> list = new ArrayList<Number>(); |
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list.add(elementValue); |
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colTree.put(colValue, list); |
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} |
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} else {
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HashMap<String, List<Number>> e = new HashMap<String, List<Number>>(); |
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ArrayList<Number> list = new ArrayList<Number>(); |
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list.add(elementValue); |
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e.put(colValue, list); |
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tree.put(rowValue, e); |
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} |
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} |
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DefaultBoxAndWhiskerCategoryDataset ds = new DefaultBoxAndWhiskerCategoryDataset();
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for (String rowKey : tree.keySet()) { |
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for (String colKey : tree.get(rowKey).keySet()) { |
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ds.add(tree.get(rowKey).get(colKey), rowKey, colKey); |
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} |
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} |
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try {
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} catch (Exception ex) { |
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throw new RuntimeException("Not able to retrieve values", ex); |
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} |
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JFreeChart boxAndWhiskerChart = ChartFactory.createBoxAndWhiskerChart( |
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json.getString("title", ""), |
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json.getString("categoryAxisLabel", ""), |
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json.getString("valueAxisLabel", ""), |
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ds, |
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json.getBoolean("legend", true)); |
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ChartPanel chartPanel = new ChartPanel(boxAndWhiskerChart);
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chartPanel.setPreferredSize(new Dimension(json.getInt("witdh", 360), json.getInt("height", 200))); |
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return chartPanel;
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} |
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case "barchart": { |
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DefaultCategoryDataset ds = new DefaultCategoryDataset();
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if (dataset == null) { |
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JsonArray datasetJson = json.getJsonArray("dataset");
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for (JsonValue jsonValue : datasetJson) {
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JsonArray element = (JsonArray) jsonValue; |
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double value = element.getJsonNumber(0).doubleValue(); |
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String field1 = element.getString(1, null); |
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String field2 = element.getString(2, null); |
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ds.addValue(value, field1, field2); |
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} |
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} else {
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String valueField = json.getString("valueField"); |
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String field1 = json.getString("field1"); |
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String field2 = json.getString("field2"); |
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for (GetItemByKey element : dataset) {
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try {
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ds.addValue(NumberUtils.toDouble(Objects.toString(element.get(valueField), null), Double.NaN), |
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Objects.toString(element.get(field1), null),
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Objects.toString(element.get(field2), null));
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} catch (Exception ex) { |
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throw new RuntimeException("Not able to retrieve values", ex); |
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} |
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} |
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} |
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JFreeChart barChart = ChartFactory.createBarChart( |
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json.getString("title", ""), |
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json.getString("categoryAxisLabel", ""), |
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json.getString("valueAxisLabel", ""), |
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ds, |
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StringUtils.equalsIgnoreCase(json.getString("orientation", null), "HORIZONTAL") ? PlotOrientation.HORIZONTAL : PlotOrientation.VERTICAL, |
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json.getBoolean("legend", true), |
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false,
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false);
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ChartPanel chartPanel = new ChartPanel(barChart);
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chartPanel.setPreferredSize(new Dimension(json.getInt("witdh", 360), json.getInt("height", 200))); |
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return chartPanel;
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} |
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default:
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throw new IllegalArgumentException("Unknown chart type:" + chartType); |
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} |
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} |
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} |