Chart DSL

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Introduction

Vaadin

Vaadin is a web application framework for Java. In contrast to Javascript libraries and browser-plugin based solutions, Vaadin features a complete stack that includes a robust server-side programming model as well as client-side development tools based on GWT and HTML5.

More information: https://vaadin.com/home

jqPlot

jqPlot (http://www.jqplot.com) is a plotting and charting plugin for the jQuery Javascript framework and is dual licensed under the MIT and GPL version 2 licenses. jqPlot produces line, bar and pie charts with many features.

dCharts

dCharts is Vaadin add-on for creating charts and is a wrapper for jqPlot library. For now dCharts support:

• Bar Charts
• Block Charts
• Bubble Charts
• Donut Charts
• Line Charts
• Meter Gauge Charts
• OHLC, HLC and Candlestick Charts
• Pie Charts
• Pyramid Charts
• Waterfall Charts

dCharts support following events:

• mouse enter
• mouse leave
• click
• right click

To enable it in OSBP it was neccessary to add OSGi capabilities to the addon.

Chart DSL

Chart DSL generates the vaddin dCharts ui.

The main semantic elements of the ChartDSL are:

• package - the root element that contains all the other elements. A model can contain multiple packages.
• import declarations - used to import external models or even Java classes.
• chart - define the chart configurations, e.g. chart type, polling time, datamart details, etc.
• as bar/line/pie/donut/bubble/gauge/tree - define the type for this chart .
• using datamart - define the data source details for this chart , e.g. row/column configurations, legend details and tooltips configurations.