Split CMS and CMS UI

[lgpl/argeo-commons.git] / org.argeo.cms.ui / src / org / argeo / cms / util / useradmin / UserAdminWrapper.java

diff --git a/org.argeo.cms.ui/src/org/argeo/cms/util/useradmin/UserAdminWrapper.java b/org.argeo.cms.ui/src/org/argeo/cms/util/useradmin/UserAdminWrapper.java
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+++ b/org.argeo.cms.ui/src/org/argeo/cms/util/useradmin/UserAdminWrapper.java
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+package org.argeo.cms.util.useradmin;
+
+import java.util.ArrayList;
+import java.util.Dictionary;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.transaction.Status;
+import javax.transaction.UserTransaction;
+
+import org.argeo.cms.CmsException;
+import org.argeo.cms.auth.AuthConstants;
+import org.argeo.osgi.useradmin.UserAdminConf;
+import org.osgi.framework.ServiceReference;
+import org.osgi.service.useradmin.UserAdmin;
+import org.osgi.service.useradmin.UserAdminEvent;
+import org.osgi.service.useradmin.UserAdminListener;
+
+/**
+ * Base useradmin wrapper. Implementing application might extends to add
+ * business specific behaviour
+ */
+public abstract class UserAdminWrapper {
+       // private Log log = LogFactory.getLog(UserAdminWrapper.class);
+
+       private UserAdmin userAdmin;
+       private ServiceReference<UserAdmin> userAdminServiceReference;
+       private UserTransaction userTransaction;
+
+       /* USER ADMIN LISTENER MANAGEMENT */
+       List<UserAdminListener> listeners = new ArrayList<UserAdminListener>();
+
+       // TODO implement safer mechanism
+       public void addListener(UserAdminListener userAdminListener) {
+               if (!listeners.contains(userAdminListener))
+                       listeners.add(userAdminListener);
+       }
+
+       /**
+        * Starts a transaction if none already exists and notify the userAdmin
+        * listeners.Must be called from the UI Thread.
+        */
+       public UserTransaction beginTransactionIfNeeded() {
+               try {
+                       if (userTransaction.getStatus() == Status.STATUS_NO_TRANSACTION) {
+                               userTransaction.begin();
+                       }
+                       return userTransaction;
+               } catch (Exception e) {
+                       throw new CmsException("Unable to begin transaction", e);
+               }
+       }
+
+       // Expose this?
+       public void removeListener(UserAdminListener userAdminListener) {
+               if (listeners.contains(userAdminListener))
+                       listeners.remove(userAdminListener);
+       }
+
+       public void notifyListeners(UserAdminEvent event) {
+               for (UserAdminListener listener : listeners)
+                       listener.roleChanged(event);
+       }
+
+       public Map<String, String> getKnownBaseDns(boolean onlyWritable) {
+               Map<String, String> dns = new HashMap<String, String>();
+               for (String uri : userAdminServiceReference.getPropertyKeys()) {
+                       if (!uri.startsWith("/"))
+                               continue;
+                       Dictionary<String, ?> props = UserAdminConf.uriAsProperties(uri);
+                       String readOnly = UserAdminConf.readOnly.getValue(props);
+                       String baseDn = UserAdminConf.baseDn.getValue(props);
+
+                       if (onlyWritable && "true".equals(readOnly))
+                               continue;
+                       if (baseDn.equalsIgnoreCase(AuthConstants.ROLES_BASEDN))
+                               continue;
+                       dns.put(baseDn, uri);
+               }
+               return dns;
+       }
+
+       public UserAdmin getUserAdmin() {
+               return userAdmin;
+       }
+
+       public UserTransaction getUserTransaction() {
+               return userTransaction;
+       }
+
+       /* DEPENDENCY INJECTION */
+       public void setUserAdmin(UserAdmin userAdmin) {
+               this.userAdmin = userAdmin;
+       }
+
+       public void setUserTransaction(UserTransaction userTransaction) {
+               this.userTransaction = userTransaction;
+       }
+
+       public void setUserAdminServiceReference(
+                       ServiceReference<UserAdmin> userAdminServiceReference) {
+               this.userAdminServiceReference = userAdminServiceReference;
+       }
+}
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