Java tutorial
/** * Copyright (C) 2012 JBoss Inc * * 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.jboss.dashboard.ui.components.chart; import org.jboss.dashboard.ui.Dashboard; import org.jboss.dashboard.dataset.DataSet; import org.jboss.dashboard.displayer.chart.AbstractChartDisplayer; import org.jboss.dashboard.domain.Interval; import org.jboss.dashboard.ui.components.DataDisplayerViewer; import org.jboss.dashboard.ui.components.DashboardHandler; import org.jboss.dashboard.provider.DataProperty; import org.jboss.dashboard.commons.filter.FilterByCriteria; import org.jboss.dashboard.ui.controller.CommandRequest; import org.jboss.dashboard.ui.controller.CommandResponse; import org.jboss.dashboard.ui.controller.responses.ShowCurrentScreenResponse; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; public class GaugeMeterChartViewer extends DataDisplayerViewer { private static transient Log log = LogFactory.getLog(GaugeMeterChartViewer.class.getName()); public static final String PARAM_ACTION = "applyLink"; public static final String PARAM_NSERIE = "serie"; public CommandResponse actionApplyLink(CommandRequest request) { try { AbstractChartDisplayer abstractChartDisplayer = (AbstractChartDisplayer) getDataDisplayer(); DataProperty property = abstractChartDisplayer.getDomainProperty(); Integer series = Integer.decode(request.getRequestObject().getParameter(PARAM_NSERIE)); DataSet dataSet = abstractChartDisplayer.buildXYDataSet(); Interval interval = (Interval) dataSet.getValueAt(series, 0); Dashboard dashboard = DashboardHandler.lookup().getCurrentDashboard(); if (dashboard.filter(property.getPropertyId(), interval, FilterByCriteria.ALLOW_ANY)) { return new ShowCurrentScreenResponse(); } } catch (Exception e) { log.error("Cannot apply filter.", e); } return null; } }