Improve initialisation
[lgpl/argeo-commons.git] / org.argeo.cms / src / org / argeo / cms / internal / runtime / CmsContextImpl.java
index e14b21e7073cd39241250fa0ec337a2a795a83e8..01d285b8cfd2767b8d4252b5cb93cb30861950a9 100644 (file)
@@ -1,7 +1,5 @@
 package org.argeo.cms.internal.runtime;
 
-import static java.util.Locale.ENGLISH;
-
 import java.lang.management.ManagementFactory;
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -14,32 +12,31 @@ import java.util.concurrent.ExecutionException;
 
 import javax.security.auth.Subject;
 
-import org.argeo.api.cms.CmsConstants;
 import org.argeo.api.cms.CmsContext;
 import org.argeo.api.cms.CmsDeployment;
+import org.argeo.api.cms.CmsEventBus;
 import org.argeo.api.cms.CmsLog;
 import org.argeo.api.cms.CmsSession;
 import org.argeo.api.cms.CmsSessionId;
 import org.argeo.api.cms.CmsState;
 import org.argeo.api.uuid.UuidFactory;
 import org.argeo.cms.CmsDeployProperty;
-import org.argeo.cms.LocaleUtils;
 import org.argeo.cms.internal.auth.CmsSessionImpl;
 import org.ietf.jgss.GSSCredential;
 import org.osgi.service.useradmin.UserAdmin;
 
+/** Reference implementation of {@link CmsContext}. */
 public class CmsContextImpl implements CmsContext {
+
        private final CmsLog log = CmsLog.getLog(getClass());
-//     private final BundleContext bc = FrameworkUtil.getBundle(getClass()).getBundleContext();
 
-//     private EgoRepository egoRepository;
        private static CompletableFuture<CmsContextImpl> instance = new CompletableFuture<CmsContextImpl>();
 
        private CmsState cmsState;
        private CmsDeployment cmsDeployment;
        private UserAdmin userAdmin;
        private UuidFactory uuidFactory;
-//     private ProvidedRepository contentRepository;
+       private CmsEventBus cmsEventBus;
 
        // i18n
        private Locale defaultLocale;
@@ -47,46 +44,35 @@ public class CmsContextImpl implements CmsContext {
 
        private Long availableSince;
 
+       // time in ms to wait for CMS to be ready
+       private final long readynessTimeout = 30 * 1000;
+
        // CMS sessions
        private Map<UUID, CmsSessionImpl> cmsSessionsByUuid = new HashMap<>();
        private Map<String, CmsSessionImpl> cmsSessionsByLocalId = new HashMap<>();
 
-//     public CmsContextImpl() {
-//             initTrackers();
-//     }
-
        public void start() {
                List<String> codes = CmsStateImpl.getDeployProperties(cmsState, CmsDeployProperty.LOCALE);
                locales = getLocaleList(codes);
                if (locales.size() == 0)
                        throw new IllegalStateException("At least one locale must be set");
                defaultLocale = locales.get(0);
-//             Object defaultLocaleValue = KernelUtils.getFrameworkProp(CmsConstants.I18N_DEFAULT_LOCALE);
-//             defaultLocale = defaultLocaleValue != null ? new Locale(defaultLocaleValue.toString())
-//                             : new Locale(ENGLISH.getLanguage());
-               // node repository
-//             new ServiceTracker<Repository, Repository>(bc, Repository.class, null) {
-//                     @Override
-//                     public Repository addingService(ServiceReference<Repository> reference) {
-//                             Object cn = reference.getProperty(NodeConstants.CN);
-//                             if (cn != null && cn.equals(NodeConstants.EGO_REPOSITORY)) {
-////                                   egoRepository = (EgoRepository) bc.getService(reference);
-//                                     if (log.isTraceEnabled())
-//                                             log.trace("Home repository is available");
-//                             }
-//                             return super.addingService(reference);
-//                     }
-//
-//                     @Override
-//                     public void removedService(ServiceReference<Repository> reference, Repository service) {
-//                             super.removedService(reference, service);
-////                           egoRepository = null;
-//                     }
-//
-//             }.open();
-
-               checkReadiness();
 
+               new Thread(() -> {
+                       long begin = System.currentTimeMillis();
+                       long duration = 0;
+                       readyness: while (!checkReadiness()) {
+                               duration = System.currentTimeMillis() - begin;
+                               if (duration > readynessTimeout) {
+                                       log.error("## CMS not ready after " + duration + " ms. Giving up checking.");
+                                       break readyness;
+                               }
+                               try {
+                                       Thread.sleep(100);
+                               } catch (InterruptedException e) {
+                               }
+                       }
+               }, "Check readiness").start();
                setInstance(this);
        }
 
@@ -98,10 +84,13 @@ public class CmsContextImpl implements CmsContext {
         * Checks whether the deployment is available according to expectations, and
         * mark it as available.
         */
-       private void checkReadiness() {
+       private boolean checkReadiness() {
                if (isAvailable())
-                       return;
-               if (cmsDeployment != null && userAdmin != null) {
+                       return true;
+               if (cmsDeployment == null)
+                       return false;
+
+               if (((CmsDeploymentImpl) cmsDeployment).allExpectedServicesAvailable() && userAdmin != null) {
                        String data = KernelUtils.getFrameworkProp(KernelUtils.OSGI_INSTANCE_AREA);
                        String state = KernelUtils.getFrameworkProp(KernelUtils.OSGI_CONFIGURATION_AREA);
                        availableSince = System.currentTimeMillis();
@@ -118,8 +107,11 @@ public class CmsContextImpl implements CmsContext {
                        if (log.isTraceEnabled())
                                log.trace("Kernel initialization took " + initDuration + "ms");
                        tributeToFreeSoftware(initDuration);
+
+                       return true;
                } else {
-                       throw new IllegalStateException("Deployment is not available");
+                       return false;
+                       // throw new IllegalStateException("Deployment is not available");
                }
        }
 
@@ -192,69 +184,70 @@ public class CmsContextImpl implements CmsContext {
                this.uuidFactory = uuidFactory;
        }
 
-//     public ProvidedRepository getContentRepository() {
-//             return contentRepository;
-//     }
-//
-//     public void setContentRepository(ProvidedRepository contentRepository) {
-//             this.contentRepository = contentRepository;
-//     }
-
        @Override
        public Locale getDefaultLocale() {
                return defaultLocale;
        }
 
+       @Override
+       public UUID timeUUID() {
+               return uuidFactory.timeUUID();
+       }
+
        @Override
        public List<Locale> getLocales() {
                return locales;
        }
 
        @Override
-       public synchronized Long getAvailableSince() {
+       public Long getAvailableSince() {
                return availableSince;
        }
 
-       public synchronized boolean isAvailable() {
+       public boolean isAvailable() {
                return availableSince != null;
        }
 
-       @Override
        public CmsState getCmsState() {
                return cmsState;
        }
 
+       @Override
+       public CmsEventBus getCmsEventBus() {
+               return cmsEventBus;
+       }
+
+       public void setCmsEventBus(CmsEventBus cmsEventBus) {
+               this.cmsEventBus = cmsEventBus;
+       }
+
        /*
         * STATIC
         */
 
-       public synchronized static CmsContextImpl getCmsContext() {
+       public static CmsContextImpl getCmsContext() {
                return getInstance();
        }
 
-//     /** Required by USER login module. */
-//     public synchronized static UserAdmin getUserAdmin() {
-//             return getInstance().userAdmin;
-//     }
-
        /** Required by SPNEGO login module. */
-       @Deprecated
-       public synchronized static GSSCredential getAcceptorCredentials() {
-               // FIXME find a cleaner way
-               return ((CmsUserAdmin) getInstance().userAdmin).getAcceptorCredentials();
+       public GSSCredential getAcceptorCredentials() {
+               // TODO find a cleaner way
+               return ((CmsUserAdmin) userAdmin).getAcceptorCredentials();
        }
 
-       private synchronized static void setInstance(CmsContextImpl cmsContextImpl) {
+       private static void setInstance(CmsContextImpl cmsContextImpl) {
                if (cmsContextImpl != null) {
                        if (instance.isDone())
                                throw new IllegalStateException("CMS Context is already set");
                        instance.complete(cmsContextImpl);
                } else {
+                       if (!instance.isDone())
+                               instance.cancel(true);
                        instance = new CompletableFuture<CmsContextImpl>();
                }
        }
 
-       private synchronized static CmsContextImpl getInstance() {
+       private static CmsContextImpl getInstance() {
                try {
                        return instance.get();
                } catch (InterruptedException | ExecutionException e) {
@@ -271,14 +264,14 @@ public class CmsContextImpl implements CmsContext {
         */
 
        @Override
-       public synchronized CmsSession getCmsSession(Subject subject) {
+       public CmsSession getCmsSession(Subject subject) {
                if (subject.getPrivateCredentials(CmsSessionId.class).isEmpty())
                        return null;
                CmsSessionId cmsSessionId = subject.getPrivateCredentials(CmsSessionId.class).iterator().next();
                return getCmsSessionByUuid(cmsSessionId.getUuid());
        }
 
-       public synchronized void registerCmsSession(CmsSessionImpl cmsSession) {
+       public void registerCmsSession(CmsSessionImpl cmsSession) {
                if (cmsSessionsByUuid.containsKey(cmsSession.getUuid())
                                || cmsSessionsByLocalId.containsKey(cmsSession.getLocalId()))
                        throw new IllegalStateException("CMS session " + cmsSession + " is already registered.");
@@ -286,7 +279,7 @@ public class CmsContextImpl implements CmsContext {
                cmsSessionsByLocalId.put(cmsSession.getLocalId(), cmsSession);
        }
 
-       public synchronized void unregisterCmsSession(CmsSessionImpl cmsSession) {
+       public void unregisterCmsSession(CmsSessionImpl cmsSession) {
                if (!cmsSessionsByUuid.containsKey(cmsSession.getUuid())
                                || !cmsSessionsByLocalId.containsKey(cmsSession.getLocalId()))
                        throw new IllegalStateException("CMS session " + cmsSession + " is not registered.");
@@ -299,7 +292,7 @@ public class CmsContextImpl implements CmsContext {
         * The {@link CmsSession} related to this UUID, or <code>null</null> if not
         * registered.
         */
-       public synchronized CmsSessionImpl getCmsSessionByUuid(UUID uuid) {
+       public CmsSessionImpl getCmsSessionByUuid(UUID uuid) {
                return cmsSessionsByUuid.get(uuid);
        }
 
@@ -307,7 +300,7 @@ public class CmsContextImpl implements CmsContext {
         * The {@link CmsSession} related to this local id, or <code>null</null> if not
         * registered.
         */
-       public synchronized CmsSessionImpl getCmsSessionByLocalId(String localId) {
+       public CmsSessionImpl getCmsSessionByLocalId(String localId) {
                return cmsSessionsByLocalId.get(localId);
        }