SimpleApp.java

   1 package org.argeo.cms.util;
   2
   3 import java.io.IOException;
   4 import java.io.InputStream;
   5 import java.util.ArrayList;
   6 import java.util.Arrays;
   7 import java.util.HashMap;
   8 import java.util.LinkedHashMap;
   9 import java.util.List;
  10 import java.util.Map;
  11
  12 import javax.jcr.Repository;
  13 import javax.jcr.RepositoryException;
  14 import javax.jcr.Session;
  15 import javax.jcr.security.Privilege;
  16 import javax.jcr.version.VersionManager;
  17
  18 import org.apache.commons.logging.Log;
  19 import org.apache.commons.logging.LogFactory;
  20 import org.argeo.cms.CmsConstants;
  21 import org.argeo.cms.CmsException;
  22 import org.argeo.cms.CmsUiProvider;
  23 import org.argeo.cms.LifeCycleUiProvider;
  24 import org.argeo.jcr.JcrUtils;
  25 import org.eclipse.gemini.blueprint.context.BundleContextAware;
  26 import org.eclipse.rap.rwt.application.Application;
  27 import org.eclipse.rap.rwt.application.Application.OperationMode;
  28 import org.eclipse.rap.rwt.application.ApplicationConfiguration;
  29 import org.eclipse.rap.rwt.application.EntryPoint;
  30 import org.eclipse.rap.rwt.application.EntryPointFactory;
  31 import org.eclipse.rap.rwt.application.ExceptionHandler;
  32 import org.eclipse.rap.rwt.client.WebClient;
  33 import org.eclipse.rap.rwt.service.ResourceLoader;
  34 import org.osgi.framework.BundleContext;
  35
  36 /** A basic generic app based on {@link SimpleErgonomics}. */
  37 public class SimpleApp implements CmsConstants, ApplicationConfiguration,
  38                 BundleContextAware {
  39         private final static Log log = LogFactory.getLog(SimpleApp.class);
  40
  41         private Map<String, Map<String, String>> branding = new HashMap<String, Map<String, String>>();
  42         private Map<String, List<String>> styleSheets = new HashMap<String, List<String>>();
  43
  44         private List<String> resources = new ArrayList<String>();
  45
  46         private BundleContext bundleContext;
  47
  48         private Repository repository;
  49         private String workspace = null;
  50         private String basePath = "/";
  51         private List<String> roPrincipals = Arrays.asList("anonymous", "everyone");
  52         private List<String> rwPrincipals = Arrays.asList("everyone");
  53
  54         private CmsUiProvider header;
  55         private Map<String, CmsUiProvider> pages = new LinkedHashMap<String, CmsUiProvider>();
  56
  57         private Integer headerHeight = 40;
  58
  59         public void configure(Application application) {
  60                 try {
  61                         application.setOperationMode(OperationMode.SWT_COMPATIBILITY);
  62                         // application.setOperationMode(OperationMode.JEE_COMPATIBILITY);
  63
  64                         application.setExceptionHandler(new CmsExceptionHandler());
  65
  66                         // loading animated gif
  67                         application.addResource(LOADING_IMAGE,
  68                                         createResourceLoader(LOADING_IMAGE));
  69                         // empty image
  70                         application.addResource(NO_IMAGE, createResourceLoader(NO_IMAGE));
  71
  72                         for (String resource : resources) {
  73                                 application.addResource(resource, new BundleResourceLoader(
  74                                                 bundleContext));
  75                                 if (log.isDebugEnabled())
  76                                         log.debug("Registered resource " + resource);
  77                         }
  78
  79                         Map<String, String> defaultBranding = null;
  80                         if (branding.containsKey("*"))
  81                                 defaultBranding = branding.get("*");
  82
  83                         // entry points
  84                         for (String page : pages.keySet()) {
  85                                 Map<String, String> properties = defaultBranding != null ? new HashMap<String, String>(
  86                                                 defaultBranding) : new HashMap<String, String>();
  87                                 if (branding.containsKey(page)) {
  88                                         properties.putAll(branding.get(page));
  89                                 }
  90                                 // favicon
  91                                 if (properties.containsKey(WebClient.FAVICON)) {
  92                                         String faviconRelPath = properties.get(WebClient.FAVICON);
  93                                         application.addResource(faviconRelPath,
  94                                                         new BundleResourceLoader(bundleContext));
  95                                         if (log.isTraceEnabled())
  96                                                 log.trace("Registered favicon " + faviconRelPath);
  97
  98                                 }
  99
 100                                 // page title
 101                                 if (!properties.containsKey(WebClient.PAGE_TITLE)) {
 102                                         if (page.length() > 0)
 103                                                 properties.put(
 104                                                                 WebClient.PAGE_TITLE,
 105                                                                 Character.toUpperCase(page.charAt(0))
 106                                                                                 + page.substring(1));
 107                                 }
 108
 109                                 // default body HTML
 110                                 if (!properties.containsKey(WebClient.BODY_HTML))
 111                                         properties.put(WebClient.BODY_HTML, DEFAULT_LOADING_BODY);
 112
 113                                 //
 114                                 // ADD ENTRY POINT
 115                                 //
 116                                 application.addEntryPoint("/" + page, new CmsEntryPointFactory(
 117                                                 pages.get(page), repository, workspace, properties),
 118                                                 properties);
 119                                 log.info("Registered entry point /" + page);
 120                         }
 121
 122                         // stylesheets
 123                         for (String themeId : styleSheets.keySet()) {
 124                                 List<String> cssLst = styleSheets.get(themeId);
 125                                 for (String css : cssLst) {
 126                                         application.addStyleSheet(themeId, css,
 127                                                         new BundleResourceLoader(bundleContext));
 128                                 }
 129
 130                         }
 131                 } catch (RuntimeException e) {
 132                         // Easier access to initialisation errors
 133                         log.error("Unexpected exception when configuring RWT application.",
 134                                         e);
 135                         throw e;
 136                 }
 137         }
 138
 139         public void init() throws RepositoryException {
 140                 Session session = null;
 141                 try {
 142                         session = JcrUtils.loginOrCreateWorkspace(repository, workspace);
 143                         VersionManager vm = session.getWorkspace().getVersionManager();
 144                         if (!vm.isCheckedOut("/"))
 145                                 vm.checkout("/");
 146                         JcrUtils.mkdirs(session, basePath);
 147                         for (String principal : rwPrincipals)
 148                                 JcrUtils.addPrivilege(session, basePath, principal,
 149                                                 Privilege.JCR_WRITE);
 150                         for (String principal : roPrincipals)
 151                                 JcrUtils.addPrivilege(session, basePath, principal,
 152                                                 Privilege.JCR_READ);
 153
 154                         for (String pageName : pages.keySet()) {
 155                                 try {
 156                                         initPage(session, pages.get(pageName));
 157                                         session.save();
 158                                 } catch (Exception e) {
 159                                         throw new CmsException(
 160                                                         "Cannot initialize page " + pageName, e);
 161                                 }
 162                         }
 163
 164                 } finally {
 165                         JcrUtils.logoutQuietly(session);
 166                 }
 167         }
 168
 169         protected void initPage(Session adminSession, CmsUiProvider page)
 170                         throws RepositoryException {
 171                 if (page instanceof LifeCycleUiProvider)
 172                         ((LifeCycleUiProvider) page).init(adminSession);
 173         }
 174
 175         public void destroy() {
 176                 for (String pageName : pages.keySet()) {
 177                         try {
 178                                 CmsUiProvider page = pages.get(pageName);
 179                                 if (page instanceof LifeCycleUiProvider)
 180                                         ((LifeCycleUiProvider) page).destroy();
 181                         } catch (Exception e) {
 182                                 log.error("Cannot destroy page " + pageName, e);
 183                         }
 184                 }
 185         }
 186
 187         public void setRepository(Repository repository) {
 188                 this.repository = repository;
 189         }
 190
 191         public void setWorkspace(String workspace) {
 192                 this.workspace = workspace;
 193         }
 194
 195         public void setHeader(CmsUiProvider header) {
 196                 this.header = header;
 197         }
 198
 199         public void setPages(Map<String, CmsUiProvider> pages) {
 200                 this.pages = pages;
 201         }
 202
 203         public void setBasePath(String basePath) {
 204                 this.basePath = basePath;
 205         }
 206
 207         public void setRoPrincipals(List<String> roPrincipals) {
 208                 this.roPrincipals = roPrincipals;
 209         }
 210
 211         public void setRwPrincipals(List<String> rwPrincipals) {
 212                 this.rwPrincipals = rwPrincipals;
 213         }
 214
 215         public void setHeaderHeight(Integer headerHeight) {
 216                 this.headerHeight = headerHeight;
 217         }
 218
 219         public void setBranding(Map<String, Map<String, String>> branding) {
 220                 this.branding = branding;
 221         }
 222
 223         public void setStyleSheets(Map<String, List<String>> styleSheets) {
 224                 this.styleSheets = styleSheets;
 225         }
 226
 227         public void setBundleContext(BundleContext bundleContext) {
 228                 this.bundleContext = bundleContext;
 229         }
 230
 231         public void setResources(List<String> resources) {
 232                 this.resources = resources;
 233         }
 234
 235         class CmsExceptionHandler implements ExceptionHandler {
 236
 237                 @Override
 238                 public void handleException(Throwable throwable) {
 239                         CmsUtils.getCmsView().exception(throwable);
 240                 }
 241
 242         }
 243
 244         private class CmsEntryPointFactory implements EntryPointFactory {
 245                 private final CmsUiProvider page;
 246                 private final Repository repository;
 247                 private final String workspace;
 248                 private final Map<String, String> properties;
 249
 250                 public CmsEntryPointFactory(CmsUiProvider page, Repository repository,
 251                                 String workspace, Map<String, String> properties) {
 252                         this.page = page;
 253                         this.repository = repository;
 254                         this.workspace = workspace;
 255                         this.properties = properties;
 256                 }
 257
 258                 @Override
 259                 public EntryPoint create() {
 260                         SimpleErgonomics entryPoint = new SimpleErgonomics(repository,
 261                                         workspace, basePath, page, properties);
 262                         // entryPoint.setState("");
 263                         entryPoint.setHeader(header);
 264                         entryPoint.setHeaderHeight(headerHeight);
 265                         // CmsSession.current.set(entryPoint);
 266                         return entryPoint;
 267                 }
 268
 269         }
 270
 271         private static ResourceLoader createResourceLoader(final String resourceName) {
 272                 return new ResourceLoader() {
 273                         public InputStream getResourceAsStream(String resourceName)
 274                                         throws IOException {
 275                                 return getClass().getClassLoader().getResourceAsStream(
 276                                                 resourceName);
 277                         }
 278                 };
 279         }
 280
 281         // private static ResourceLoader createUrlResourceLoader(final URL url) {
 282         // return new ResourceLoader() {
 283         // public InputStream getResourceAsStream(String resourceName)
 284         // throws IOException {
 285         // return url.openStream();
 286         // }
 287         // };
 288         // }
 289
 290         /*
 291          * TEXTS
 292          */
 293         private static String DEFAULT_LOADING_BODY = "<div"
 294                         + " style=\"position: absolute; left: 50%; top: 50%; margin: -32px -32px; width: 64px; height:64px\">"
 295                         + "<img src=\"./rwt-resources/" + LOADING_IMAGE
 296                         + "\" width=\"32\" height=\"32\" style=\"margin: 16px 16px\"/>"
 297                         + "</div>";
 298 }