Java tutorial
/* * Copyright (c) Open Source Strategies, Inc. * * Opentaps is free software: you can redistribute it and/or modify it * under the terms of the GNU Affero General Public License as published * by the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Opentaps is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with Opentaps. If not, see <http://www.gnu.org/licenses/>. */ package com.opensourcestrategies.financials.reports; import org.jfree.chart.ChartFactory; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.AxisLocation; import org.jfree.chart.axis.CategoryAxis; import org.jfree.chart.axis.CategoryLabelPositions; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.BarRenderer; import org.jfree.chart.servlet.ServletUtilities; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.ui.RectangleInsets; import org.ofbiz.entity.GenericEntityException; import org.ofbiz.entity.GenericValue; import org.opentaps.common.util.UtilMessage; import java.awt.*; import java.io.IOException; import java.math.BigDecimal; import java.util.List; import java.util.Locale; import java.util.Map; /** * Charts for Financials generated by the JFree API. */ public class JFreeFinancialCharts { /** * Liquidity snapshot chart. Documentation is at http://www.opentaps.org/docs/index.php/Financials_Home_Screen * * Because a user might not have permission to view balances in all areas, this method takes into consideration * the ability to view various bars in the chart. * * @param accountsMap Map of accounts keyed by the glAccountType * @return String filename pointing to the chart, to be used with showChart URI request */ public static String createLiquiditySnapshotChart(Map<String, GenericValue> accountsMap, List<GenericValue> creditCardAccounts, Locale locale, boolean hasReceivablesPermission, boolean hasPayablesPermission, boolean hasInventoryPermission) throws GenericEntityException, IOException { Map<String, Object> uiLabelMap = UtilMessage.getUiLabels(locale); // create the dataset DefaultCategoryDataset dataset = new DefaultCategoryDataset(); // compile the four bars if (hasReceivablesPermission) { double cashBalance = 0.0; cashBalance += getPostedBalance(accountsMap.get("UNDEPOSITED_RECEIPTS")); cashBalance += getPostedBalance(accountsMap.get("BANK_STLMNT_ACCOUNT")); dataset.addValue(cashBalance, "", (String) uiLabelMap.get("FinancialsCashEquivalents")); double receivablesBalance = 0.0; receivablesBalance += getPostedBalance(accountsMap.get("ACCOUNTS_RECEIVABLE")); // merchant account settlement balances are receivable receivablesBalance += getPostedBalance(accountsMap.get("MRCH_STLMNT_ACCOUNT")); dataset.addValue(receivablesBalance, "", (String) uiLabelMap.get("FinancialsReceivables")); } if (hasInventoryPermission) { double inventoryBalance = 0.0; inventoryBalance += getPostedBalance(accountsMap.get("INVENTORY_ACCOUNT")); inventoryBalance += getPostedBalance(accountsMap.get("RAWMAT_INVENTORY")); inventoryBalance += getPostedBalance(accountsMap.get("WIP_INVENTORY")); dataset.addValue(inventoryBalance, "", (String) uiLabelMap.get("WarehouseInventory")); } if (hasPayablesPermission) { double payablesBalance = 0.0; payablesBalance += getPostedBalance(accountsMap.get("ACCOUNTS_PAYABLE")); payablesBalance += getPostedBalance(accountsMap.get("COMMISSIONS_PAYABLE")); payablesBalance += getPostedBalance(accountsMap.get("UNINVOICED_SHIP_RCPT")); dataset.addValue(payablesBalance, "", (String) uiLabelMap.get("FinancialsPayables")); } // set up the chart JFreeChart chart = ChartFactory.createBarChart((String) uiLabelMap.get("FinancialsLiquiditySnapshot"), // chart title null, // domain axis label null, // range axis label dataset, // data PlotOrientation.VERTICAL, // orientation false, // include legend true, // tooltips false // urls ); chart.setBackgroundPaint(Color.white); chart.setBorderVisible(true); chart.setPadding(new RectangleInsets(5.0, 5.0, 5.0, 5.0)); // get a reference to the plot for further customisation... final CategoryPlot plot = chart.getCategoryPlot(); plot.setRangeAxisLocation(AxisLocation.BOTTOM_OR_LEFT); // get the bar renderer to put effects on the bars final BarRenderer renderer = (BarRenderer) plot.getRenderer(); renderer.setDrawBarOutline(false); // disable bar outlines // set up gradient paint on bar final GradientPaint gp = new GradientPaint(0.0f, 0.0f, Color.GREEN, 0.0f, 0.0f, Color.GRAY); renderer.setSeriesPaint(0, gp); // change the auto tick unit selection to integer units only... final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis(); rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits()); // tilt the category labels so they fit CategoryAxis domainAxis = plot.getDomainAxis(); domainAxis.setCategoryLabelPositions(CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 6.0)); // save as a png and return the file name return ServletUtilities.saveChartAsPNG(chart, 400, 300, null); } // helper method to make the code more concise // the Map is a map of string -> BigDecimal, so return the double value of the BigDecimal private static double getPostedBalance(Object accountBalance) { if (accountBalance == null) return 0.0; return ((BigDecimal) accountBalance).doubleValue(); } }