Enhancing portlets with charts and secure directory service Tomasz Kuczyński Poznan Supercomputing and Networking Center

Goals of today’s tutorial Introduce your portlets enhancement possibilities with some core GridSphere services Write a portlet using the Secure Directory GridSphere service Learn charting with GridSphere services Have a great time !

Assumptions and requirements We assume that: You are familiar with GridSphere You are familiar with portlet development Require: You have GridSphere installed on your machine (please consult GridSphere development tutorial) sdcharttutorial from CVS You are ready for development session :-) cd gridsphere/; mkdir projects; cd projects cvs -d co sdcharttutorial

Secure Directory Service Providing secure, logical file systems: for each user of the portlet for other GridSphere services shared amongst portlet/portal users Sharing files of the portlet: with other portlet between portlet/portal users Easy utilization: methods corresponding to operations on standard file systems (copy, move, delete...) transparent access to files with HTTP protocol

Chart Service Providing JFreeChart wrapper for GridSphere 17 types of charts including: Pie, Pie3D Bar, Bar3D, StackedBar, StackedBar3D Area, Line, Gantt other Utilizing Secure Directory Service Easy utilization: transparent chart generation XML based dataset and chart settings representations transparent access to charts with HTTP protocol

Preparations Make sure your GridSphere is correctly installed Install tutorial Startup tomcat, log in to the portal, subscribe to and view sdcharttutorial group Check content of Secure Directory in your Tomcat Upload some file with Hello Secure Directory Portlet, and check content again cd gridsphere/projects/sdcharttutorial; ant install ls –laR $CATALINA_HOME/webapps/gridsphere/WEB-INF/secure

Hello Secure Directory - portlet

Hello Secure Directory - source Look at following portlet in src/org/gridlab/gridsphere/secdirtutorial/portlets/HelloSecDirPortlet. java package org.gridlab.gridsphere.secdirtutorial.portlets;... import org.gridlab.gridsphere.services.core.secdir.SecureDirectoryService; import org.gridlab.gridsphere.services.core.secdir.FileInfo; import org.gridlab.gridsphere.services.core.secdir.FileLocationID;... import org.apache.oro.text.perl.Perl5Util; public class HelloSecDirPortlet extends ActionPortlet{ private static final String VIEW_JSP = "secdir/view.jsp"; private static final String VIEW_ERROR_JSP = "secdir/error.jsp"; private SecureDirectoryService secureDirectoryService = null; public static final String ROOT_DIR = "secdirandcharttutorial"; public static final String ROOT_PATH = "/some/path/"; private Perl5Util util = new Perl5Util();

Hello Secure Directory - source public void init(javax.portlet.PortletConfig portletConfig) throws... javax.portlet.PortletException { super.init(portletConfig); try{ secureDirectoryService = (SecureDirectoryService)... createPortletService(SecureDirectoryService.class); DEFAULT_VIEW_PAGE = "showFile"; }catch(PortletServiceException e){ DEFAULT_VIEW_PAGE = VIEW_ERROR_JSP; } public void showFile(RenderFormEvent event) throws PortletException { String userID = (String) ((Map) event.getRenderRequest().getAttribute... (PortletRequest.USER_INFO)).get("user.id"); UserData userData = new UserData(); try { if (!secureDirectoryService.categoryExistsForUser(userID, ROOT_DIR)) secureDirectoryService.createCategoryForUser(userID, ROOT_DIR);

Hello Secure Directory - source FileInfo[] fileList = secureDirectoryService.getFileList(... secureDirectoryService.createFileLocationID(userID, ROOT_DIR, ROOT_PATH)); String[] fileURIs = null; if (fileList != null) { fileURIs = new String[fileList.length]; for (int i = 0; i < fileList.length; ++i) { if (!fileList[i].isDirectory()) { FileLocationID fileLocationID = secureDirectoryService.... createFileLocationID(userID, ROOT_DIR, ROOT_PATH + fileList[i].getResource()); fileURIs[i] = secureDirectoryService.getDownloadFileUrl... (fileLocationID, fileList[i].getResource(), null); } userData.setFileList(fileList); userData.setFileURIs(fileURIs); } catch (Exception e) { log.error("Secure service unavailable", e); } event.getRenderRequest().setAttribute("userData", userData); setNextState(event.getRenderRequest(), VIEW_JSP); }

Hello Secure Directory - source public void uploadFile(ActionFormEvent event) throws PortletException { String userID = (String) ((Map) event.getActionRequest().getAttribute... (PortletRequest.USER_INFO)).get("user.id"); try { FileInputBean fi = event.getFileInputBean("userfile"); String filename = fi.getFileName(); if (fi.getSize() < FileInputBean.MAX_UPLOAD_SIZE) { filename = util.substitute("s!\\\\!/!g", filename); if (util.match("m!/([^/]+)$!", filename)) { filename = util.group(1); } filename = util.substitute("s! !!g", filename); secureDirectoryService.addFile(secureDirectoryService.create... FileLocationID(userID, ROOT_DIR, ROOT_PATH + filename), fi.getInputStream()); } else log.error("Size of uploaded file is to big"); } catch (Exception ie) {} }

Hello Secure Directory - source package org.gridlab.gridsphere.secdirtutorial.portlets; import org.gridlab.gridsphere.services.core.secdir.FileInfo; public class UserData { private FileInfo[] fileList; private String[] fileURIs; public FileInfo[] getFileList() { return fileList; } public void setFileList(FileInfo[] fileList) { this.fileList = fileList; } public String[] getFileURIs() { return fileURIs; } public void setFileURIs(String[] fileURIs) { this.fileURIs = fileURIs; }

SecDir Service - summary Check also: webapp/jsp/secdir/view.jsp webapp/jsp/secdir/error.jsp More advanced examples: Commander, Banner and Web Clipping portlets in extras webapp (utilization of Secure Directory Service with portlets) Chart Service in GridSphere (utilization of Secure Directory Service with other service) cd gridsphere/; mkdir projects; cd projects cvs -d co extras

Hello Chart - portlets

Hello Chart 1 - source Look at following portlet in src/org/gridlab/gridsphere/charttutorial/portlets/HelloChartPortlet1.j ava package org.gridlab.gridsphere.charttutorial.portlets;... import org.gridlab.gridsphere.services.core.charts.*; import org.gridlab.gridsphere.services.core.secdir.FileLocationID;... public class HelloChartPortlet1 extends ActionPortlet{ private ChartService chartService = null; private static final String VIEW_JSP = "charts/view1.jsp"; private static final String VIEW_ERROR_JSP = "charts/error.jsp"; public void init(PortletConfig portletConfig) throws PortletException { super.init(portletConfig); try { chartService = (ChartService) createPortletService(ChartService.class); DEFAULT_VIEW_PAGE = "viewChart"; } catch (PortletServiceException e) { DEFAULT_VIEW_PAGE = VIEW_ERROR_JSP; }

Hello Chart 1 - source public void viewChart(RenderFormEvent event) throws PortletException { String userID = (String) ((Map) event.getRenderRequest().getAttribute... (PortletRequest.USER_INFO)).get("user.id"); FileLocationID chartLocationID = chartService.createChartLocationID(userID, HelloSecDirPortlet.ROOT_DIR, HelloSecDirPortlet.ROOT_PATH + "ChartTest1"); String chartURL = chartService.getChartUrl(chartLocationID); ImageBean imageBean = event.getImageBean("chart1"); if (chartURL != null) imageBean.setSrc(chartURL); setNextState(event.getRenderRequest(), VIEW_JSP); } public void createChart(ActionFormEvent event) throws PortletException { String userID = (String) ((Map) event.getActionRequest().getAttribute... (PortletRequest.USER_INFO)).get("user.id"); org.jfree.data.DefaultPieDataset dataset = new... org.jfree.data.DefaultPieDataset(); dataset.setValue("Pacific", ); dataset.setValue("Atlantic", ); dataset.setValue("Indian", 74917);

Hello Chart 1 - source try { FileLocationID chartLocationID = chartService.createChartLocationID(userID, HelloSecDirPortlet.ROOT_DIR, HelloSecDirPortlet.ROOT_PATH + "ChartTest1"); ChartDescriptor chartDescriptor = chartService.createPie3DChart... (chartLocationID, dataset); SeriesPaint seriesPaintPacific = new SeriesPaint(); SeriesPaint seriesPaintAtlantic = new SeriesPaint(); SeriesPaint seriesPaintIndian = new SeriesPaint(); Color blue = new Color(); blue.setBlue(255); Color white = new Color(); white.setBlue(255); white.setRed(255); white.setGreen(255); Color grey = new Color(); grey.setBlue(200); grey.setRed(200); grey.setGreen(200);

Hello Chart 1 - source seriesPaintPacific.setColor(blue); seriesPaintIndian.setColor(white); seriesPaintAtlantic.setColor(grey); chartDescriptor.getChartInfo().getPlot().addSeriesPaint(0,... seriesPaintPacific); chartDescriptor.getChartInfo().getPlot().addSeriesPaint(1,... seriesPaintAtlantic); chartDescriptor.getChartInfo().getPlot().addSeriesPaint(2,... seriesPaintIndian); chartDescriptor.getChartInfo().getPlot().setForegroundAlpha(0.5f); BackgroundPaint backgroundPaint = new BackgroundPaint(); Gradient background = new Gradient(); GradientPoint point1 = new GradientPoint(); point1.setColor(white); point1.setX(0); point1.setY(0); GradientPoint point2 = new GradientPoint(); point2.setColor(blue); point2.setX(400); point2.setY(300);

Hello Chart 1 - source background.addGradientPoint(point1); background.addGradientPoint(point2); backgroundPaint.setGradient(background); chartDescriptor.getChartInfo().getPlot().setBackgroundPaint... (backgroundPaint); chartDescriptor.getChartInfo().setLegend(false); chartDescriptor.getChartInfo().getPlot().getSettings().getPie().... setLabelGenerator("{0} Ocean is {2}"); chartService.setChartDescriptor(chartLocationID, chartDescriptor); chartService.setChartTitle(chartLocationID, "Area of oceans... [mln * km2]"); } catch (Exception ie) {} }

Hello Chart 2 - source Look at following portlet in src/org/gridlab/gridsphere/charttutorial/portlets/HelloChartPortlet2.j ava package org.gridlab.gridsphere.charttutorial.portlets;... import org.gridlab.gridsphere.services.core.charts.*; import org.gridlab.gridsphere.services.core.secdir.FileLocationID;... public class HelloChartPortlet2 extends ActionPortlet { private ChartService chartService = null; private static final String VIEW_JSP = "charts/view2.jsp"; private static final String VIEW_ERROR_JSP = "charts/error.jsp"; public void init(PortletConfig portletConfig) throws PortletException { super.init(portletConfig); try { chartService = (ChartService) createPortletService(ChartService.class); DEFAULT_VIEW_PAGE = "viewChart"; } catch (PortletServiceException e) { DEFAULT_VIEW_PAGE = VIEW_ERROR_JSP; }

Hello Chart 2 - source public void viewChart(RenderFormEvent event) throws PortletException { String userID = (String) ((Map) event.getRenderRequest().getAttribute... (PortletRequest.USER_INFO)).get("user.id"); FileLocationID chartLocationID = chartService.createChartLocationID(userID, HelloSecDirPortlet.ROOT_DIR, HelloSecDirPortlet.ROOT_PATH + "ChartTest2"); String chartURL = chartService.getChartUrl(chartLocationID); ImageBean imageBean = event.getImageBean("chart2"); if (chartURL != null) imageBean.setSrc(chartURL); setNextState(event.getRenderRequest(), VIEW_JSP); } public void createChart(ActionFormEvent event) throws PortletException { String userID = (String) ((Map) event.getActionRequest().getAttribute... (PortletRequest.USER_INFO)).get("user.id"); org.jfree.data.DefaultCategoryDataset dataset = new org.jfree.data.... DefaultCategoryDataset(); dataset.setValue(179700, "Pacific", "Ocean"); dataset.setValue(106463, "Atlantic", "Ocean"); dataset.setValue(74917, "Indian", "Ocean"); dataset.setValue(44406, "Asia", "Land"); dataset.setValue(29853, "Africa", "Land");

Hello Chart 2 - source dataset.setValue(24298, "North America", "Land"); dataset.setValue(17684, "South America", "Land"); dataset.setValue(13176, "Antarctic", "Land"); dataset.setValue(9763, "Europe", "Land"); dataset.setValue(8936, "Australia", "Land"); try { FileLocationID chartLocationID = chartService.createChartLocationID(userID, HelloSecDirPortlet.ROOT_DIR, HelloSecDirPortlet.ROOT_PATH + "ChartTest2"); ChartDescriptor chartDescriptor = chartService.... createStackedBar3DChart(chartLocationID, dataset); Category category = chartDescriptor.getChartInfo().getPlot().... getSettings().getCategory(); category.setRangeAxisLabel("area [mln * km2]"); category.setDomainAxisLabel(""); category.setPlotOrientation("PlotOrientation.HORIZONTAL"); SeriesPaint pacificPaint = new SeriesPaint(); Gradient pacificGradient = new Gradient(); GradientPoint point1 = new GradientPoint(); GradientPoint point2 = new GradientPoint();

Hello Chart 2 - source Color yellow = new Color(); yellow.setGreen(255); yellow.setRed(255); Color white = new Color(); white.setBlue(255); white.setRed(255); white.setGreen(255); point1.setColor(white); point1.setX(100); point1.setY(0); point2.setColor(yellow); point2.setX(200); point2.setY(0); pacificGradient.addGradientPoint(point1); pacificGradient.addGradientPoint(point2); pacificPaint.setGradient(pacificGradient); chartDescriptor.getChartInfo().getPlot().addSeriesPaint(pacificPaint); chartDescriptor.getFileInfo().getImage().setFilename(... HelloSecDirPortlet.ROOT_PATH + "Chart2Test_but_other_filename"); BackgroundPaint backgroundPaint = new BackgroundPaint();

Hello Chart 2 - source Color lgreen = new Color();... backgroundPaint.setColor(lgreen); chartDescriptor.getChartInfo().setBackgroundPaint(backgroundPaint); chartDescriptor.getChartInfo().getPlot().setForegroundAlpha(0.75f); chartService.setChartDescriptor(chartLocationID, chartDescriptor); chartService.setChartTitle(chartLocationID, "Area of Oceans... and Continents"); } catch (Exception ie) {} } public void createChartNoData(ActionFormEvent event) throws... PortletException { String userID = (String) ((Map) event.getActionRequest().getAttribute(... PortletRequest.USER_INFO)).get("user.id"); org.jfree.data.DefaultCategoryDataset dataset = new org.jfree.data.... DefaultCategoryDataset(); try { FileLocationID chartLocationID = chartService.createChartLocationID(userID, HelloSecDirPortlet.ROOT_DIR, HelloSecDirPortlet.ROOT_PATH + "ChartTest2"); chartService.createStackedBarChart(chartLocationID, dataset); } catch (Exception ie) {}...

Hello Chart - portlets

Hello Chart 3 - source Look at following portlet in src/org/gridlab/gridsphere/charttutorial/portlets/HelloChartPortlet3.j ava package org.gridlab.gridsphere.charttutorial.portlets;... import org.gridlab.gridsphere.services.core.charts.*; import org.gridlab.gridsphere.services.core.secdir.FileLocationID;... public class HelloChartPortlet3 extends ActionPortlet { private ChartService chartService = null; private static final String VIEW_JSP = "charts/view3.jsp"; private static final String VIEW_ERROR_JSP = "charts/error.jsp"; public void init(PortletConfig portletConfig) throws PortletException { super.init(portletConfig); try { chartService = (ChartService) createPortletService(ChartService.class); DEFAULT_VIEW_PAGE = "viewChart"; } catch (PortletServiceException e) { DEFAULT_VIEW_PAGE = VIEW_ERROR_JSP; }

Hello Chart 3 - source public void viewChart(RenderFormEvent event) throws PortletException { String userID = (String) ((Map) event.getRenderRequest().getAttribute... (PortletRequest.USER_INFO)).get("user.id"); FileLocationID chartLocationID = chartService.createChartLocationID(userID, HelloSecDirPortlet.ROOT_DIR, HelloSecDirPortlet.ROOT_PATH + "ChartTest3"); String chartURL = chartService.getChartUrl(chartLocationID); ImageBean imageBean = event.getImageBean("chart3"); if (chartURL != null) imageBean.setSrc(chartURL); setNextState(event.getRenderRequest(), VIEW_JSP); } public void createChart(ActionFormEvent event) throws PortletException { String userID = (String) ((Map) event.getActionRequest().getAttribute... (PortletRequest.USER_INFO)).get("user.id"); org.jfree.data.DefaultCategoryDataset dataset = new org.jfree.data.... DefaultCategoryDataset(); dataset.setValue(979, "South America", "Salto del Angel"); dataset.setValue(604, "Europe", "Giessbach"); dataset.setValue(580, "Oceania", "Sutherland"); dataset.setValue(491, "North America", "Ribbon"); dataset.setValue(422, "Europe", "Gavarnie");

Hello Chart 3 - source... try { FileLocationID chartLocationID = chartService.createChartLocationID(userID, HelloSecDirPortlet.ROOT_DIR, HelloSecDirPortlet.ROOT_PATH + "ChartTest3"); ChartDescriptor chartDescriptor = chartService.createBar3DChart(... chartLocationID, dataset); chartDescriptor.getChartInfo().getPlot().getSettings().getCategory().... setRangeAxisLabel("height [m]"); chartDescriptor.getChartInfo().getPlot().getSettings().getCategory().... setDomainAxisLabel("name"); Image image = chartDescriptor.getFileInfo().getImage(); image.setWidth(950); image.setHeight(400); image.setQuality(1.0f); image.setType("JPEG"); Subtitle subtitle = new Subtitle(); subtitle.setText("Obviously this is not full list ;-)"); chartDescriptor.getChartInfo().setSubtitle(subtitle); chartDescriptor.getChartInfo().getPlot().setForegroundAlpha(0.25f); chartService.setChartDescriptor(chartLocationID, chartDescriptor); chartService.setChartTitle(chartLocationID, "Waterfalls of the World"); } catch (Exception ie) {}...

Chart Service - summary Check also: webapp/jsp/charts/view1.jsp webapp/jsp/charts/view2.jsp webapp/jsp/charts/view3.jsp webapp/jsp/charts/error.jsp Datasets and chart descriptor are stored in SecDir as XML files, that are validated against XML Schemas (editing these files causes automatic chart regeneration when next getChartURL() is performed) More advanced examples: GridSphere Services of SSH Session Server Framework (more information on Open Grid Portals web site)

Questions ? For more information visit: GridSphere GridLab Open Grid Portals JFreeChart Thank you