Java tutorial
/** SpagoBI, the Open Source Business Intelligence suite Copyright (C) 2012 Engineering Ingegneria Informatica S.p.A. - SpagoBI Competency Center This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/. **/ package it.eng.spagobi.studio.highchart.configuration; import java.io.IOException; import java.io.InputStream; import java.net.URL; import java.util.ArrayList; import java.util.List; import org.dom4j.Document; import org.dom4j.Node; import org.dom4j.io.SAXReader; import org.eclipse.core.runtime.Platform; import org.osgi.framework.Bundle; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class HighChartConfigurations { public static final String INFO_FILE = "it/eng/spagobi/studio/highchart/configuration/highcharts.xml"; private static Logger logger = LoggerFactory.getLogger(HighChartConfigurations.class); public static List getConfiguredChartTypes() throws Exception { List toReturn = null; try { InputStream is = getInputStreamFromResource(INFO_FILE); Document document = new SAXReader().read(is); List charts = document.selectNodes("//HIGHCHARTS/HIGHCHART"); if (charts == null || charts.size() == 0) return null; toReturn = new ArrayList(); for (int i = 0; i < charts.size(); i++) { Node chart = (Node) charts.get(i); String type = chart.valueOf("@type"); if (type == null || type.trim().equals("")) continue; toReturn.add(type); } } catch (Exception e) { logger.error("Error in reading configuration types from file " + INFO_FILE); } return toReturn; } /** Get input stream from a resource * * @param resourcePath * @return * @throws IOException */ public static InputStream getInputStreamFromResource(String resourcePath) throws IOException { Bundle b = Platform.getBundle(it.eng.spagobi.studio.highchart.Activator.PLUGIN_ID); URL res = b.getResource(resourcePath); InputStream is = res.openStream(); return is; } }