org.primefaces.component.chart.renderer.BasePlotRenderer Maven / Gradle / Ivy

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PrimeFaces is one of the most popular UI libraries in Java EE Ecosystem and widely used by software companies, world renowned brands, banks, financial institutions, insurance companies, universities and more.

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/**
 * Copyright 2009-2018 PrimeTek.
 *
 * 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.primefaces.component.chart.renderer;

import java.io.IOException;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import org.primefaces.component.chart.Chart;
import org.primefaces.model.chart.ChartModel;
import org.primefaces.model.chart.LegendPlacement;
import org.primefaces.util.ComponentUtils;

public abstract class BasePlotRenderer {

    public void render(FacesContext context, Chart chart) throws IOException {
        encodeData(context, chart);
        encodeOptions(context, chart);
    }

    protected abstract void encodeData(FacesContext context, Chart chart) throws IOException;

    protected void encodeOptions(FacesContext context, Chart chart) throws IOException {
        ResponseWriter writer = context.getResponseWriter();
        ChartModel model = chart.getModel();
        String legendPosition = model.getLegendPosition();
        String title = model.getTitle();
        String seriesColors = model.getSeriesColors();
        String negativeSeriesColors = model.getNegativeSeriesColors();
        String extender = model.getExtender();

        if (title != null) {
            writer.write(",title:\"" + ComponentUtils.escapeText(title) + "\"");
        }

        if (!model.isShadow()) {
            writer.write(",shadow:false");
        }

        if (seriesColors != null) {
            writer.write(",seriesColors:[\"#" + seriesColors.replaceAll("[ ]*,[ ]*", "\",\"#") + "\"]");
        }

        if (negativeSeriesColors != null) {
            writer.write(",negativeSeriesColors:[\"#" + negativeSeriesColors.replaceAll("[ ]*,[ ]*", "\",\"#") + "\"]");
        }

        if (legendPosition != null) {
            LegendPlacement legendPlacement = model.getLegendPlacement();
            writer.write(",legendPosition:\"" + legendPosition + "\"");

            if (model.getLegendCols() != 0) {
                writer.write(",legendCols:" + model.getLegendCols());
            }

            if (model.getLegendRows() != 0) {
                writer.write(",legendRows:" + model.getLegendRows());
            }

            if (legendPlacement != null) {
                writer.write(",legendPlacement:\"" + legendPlacement + "\"");
            }

            if (model.isLegendEscapeHtml()) {
                writer.write(",escapeHtml:true");
            }
        }

        if (!model.isMouseoverHighlight()) {
            writer.write(",highlightMouseOver:" + false);
        }

        if (extender != null) {
            writer.write(",extender:" + extender);
        }

        if (!model.isResetAxesOnResize()) {
            writer.write(",resetAxesOnResize:" + false);
        }
        
        writer.write(",dataRenderMode:\"" + model.getDataRenderMode() + "\"");
    }
    
    protected String escapeChartData(Object value) {
        // default to "null" if null
        String result = String.valueOf(value);

        // do NOT quote numbers but quote all other objects
        if (value instanceof Number == false) {
            result = "\"" + ComponentUtils.escapeText(result) + "\"";
        }

        return result;
    }
}