Move Eclipse 3 components to legacy.

[lgpl/argeo-commons.git] / legacy / org.argeo.cms.ui.workbench / src / org / argeo / cms / ui / workbench / internal / useradmin / commands / UserTransactionHandler.java

diff --git a/legacy/org.argeo.cms.ui.workbench/src/org/argeo/cms/ui/workbench/internal/useradmin/commands/UserTransactionHandler.java b/legacy/org.argeo.cms.ui.workbench/src/org/argeo/cms/ui/workbench/internal/useradmin/commands/UserTransactionHandler.java
new file mode 100644 (file)
index 0000000..69fd071
--- /dev/null
+++ b/legacy/org.argeo.cms.ui.workbench/src/org/argeo/cms/ui/workbench/internal/useradmin/commands/UserTransactionHandler.java
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2007-2012 Argeo GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.argeo.cms.ui.workbench.internal.useradmin.commands;
+
+import javax.transaction.Status;
+import javax.transaction.UserTransaction;
+
+import org.argeo.cms.CmsException;
+import org.argeo.cms.ui.workbench.WorkbenchUiPlugin;
+import org.argeo.cms.ui.workbench.internal.useradmin.UiAdminUtils;
+import org.argeo.cms.ui.workbench.internal.useradmin.UserAdminWrapper;
+import org.eclipse.core.commands.AbstractHandler;
+import org.eclipse.core.commands.ExecutionEvent;
+import org.eclipse.core.commands.ExecutionException;
+import org.osgi.service.useradmin.UserAdminEvent;
+
+/** Manage the transaction that is bound to the current perspective */
+public class UserTransactionHandler extends AbstractHandler {
+       public final static String ID = WorkbenchUiPlugin.PLUGIN_ID
+                       + ".userTransactionHandler";
+
+       public final static String PARAM_COMMAND_ID = "param.commandId";
+
+       public final static String TRANSACTION_BEGIN = "transaction.begin";
+       public final static String TRANSACTION_COMMIT = "transaction.commit";
+       public final static String TRANSACTION_ROLLBACK = "transaction.rollback";
+
+       /* DEPENDENCY INJECTION */
+       private UserAdminWrapper userAdminWrapper;
+
+       public Object execute(ExecutionEvent event) throws ExecutionException {
+               String commandId = event.getParameter(PARAM_COMMAND_ID);
+               final UserTransaction userTransaction = userAdminWrapper
+                               .getUserTransaction();
+               try {
+                       if (TRANSACTION_BEGIN.equals(commandId)) {
+                               if (userTransaction.getStatus() != Status.STATUS_NO_TRANSACTION)
+                                       throw new CmsException("A transaction already exists");
+                               else
+                                       userTransaction.begin();
+                       } else if (TRANSACTION_COMMIT.equals(commandId)) {
+                               if (userTransaction.getStatus() == Status.STATUS_NO_TRANSACTION)
+                                       throw new CmsException("No transaction.");
+                               else
+                                       userTransaction.commit();
+                       } else if (TRANSACTION_ROLLBACK.equals(commandId)) {
+                               if (userTransaction.getStatus() == Status.STATUS_NO_TRANSACTION)
+                                       throw new CmsException("No transaction to rollback.");
+                               else {
+                                       userTransaction.rollback();
+                                       userAdminWrapper.notifyListeners(new UserAdminEvent(null,
+                                                       UserAdminEvent.ROLE_CHANGED, null));
+                               }
+                       }
+
+                       UiAdminUtils.notifyTransactionStateChange(userTransaction);
+                       // Try to remove invalid thread access errors when managing users.
+                       // HandlerUtil.getActivePart(event).getSite().getShell().getDisplay()
+                       // .asyncExec(new Runnable() {
+                       // @Override
+                       // public void run() {
+                       // UiAdminUtils
+                       // .notifyTransactionStateChange(userTransaction);
+                       // }
+                       // });
+
+               } catch (CmsException e) {
+                       throw e;
+               } catch (Exception e) {
+                       throw new CmsException("Unable to call " + commandId + " on "
+                                       + userTransaction, e);
+               }
+               return null;
+       }
+
+       /* DEPENDENCY INJECTION */
+       public void setUserAdminWrapper(UserAdminWrapper userAdminWrapper) {
+               this.userAdminWrapper = userAdminWrapper;
+       }
+}