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