ConfirmRestoreController.java

/**
 * <a href="http://www.openolat.org">
 * OpenOLAT - Online Learning and Training</a><br>
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License"); <br>
 * you may not use this file except in compliance with the License.<br>
 * You may obtain a copy of the License at the
 * <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache homepage</a>
 * <p>
 * Unless required by applicable law or agreed to in writing,<br>
 * software distributed under the License is distributed on an "AS IS" BASIS, <br>
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
 * See the License for the specific language governing permissions and <br>
 * limitations under the License.
 * <p>
 * Initial code contributed and copyrighted by<br>
 * frentix GmbH, http://www.frentix.com
 * <p>
 */
package org.olat.repository.ui.author;

import java.util.List;

import org.olat.core.gui.UserRequest;
import org.olat.core.gui.components.form.flexible.FormItem;
import org.olat.core.gui.components.form.flexible.FormItemContainer;
import org.olat.core.gui.components.form.flexible.elements.FormLink;
import org.olat.core.gui.components.form.flexible.impl.FormBasicController;
import org.olat.core.gui.components.form.flexible.impl.FormEvent;
import org.olat.core.gui.components.form.flexible.impl.FormLayoutContainer;
import org.olat.core.gui.components.link.Link;
import org.olat.core.gui.control.Controller;
import org.olat.core.gui.control.Event;
import org.olat.core.gui.control.WindowControl;
import org.olat.core.logging.activity.LearningResourceLoggingAction;
import org.olat.core.logging.activity.OlatResourceableType;
import org.olat.core.logging.activity.ThreadLocalUserActivityLogger;
import org.olat.core.util.StringHelper;
import org.olat.core.util.Util;
import org.olat.repository.RepositoryEntry;
import org.olat.repository.RepositoryService;
import org.olat.repository.controllers.EntryChangedEvent;
import org.olat.repository.controllers.EntryChangedEvent.Change;
import org.olat.util.logging.activity.LoggingResourceable;
import org.springframework.beans.factory.annotation.Autowired;

/**
 * 
 * Initial date: 1 déc. 2016<br>
 * @author srosse, stephane.rosse@frentix.com, http://www.frentix.com
 *
 */
public class ConfirmRestoreController extends FormBasicController {
	
	private FormLink restoreButton;
	
	private final int numOfMembers;
	private final List<RepositoryEntry> rows;
	
	@Autowired
	private RepositoryService repositoryService;
	
	public ConfirmRestoreController(UserRequest ureq, WindowControl wControl, List<RepositoryEntry> rows) {
		super(ureq, wControl, "confirm_restore", Util.createPackageTranslator(RepositoryService.class, ureq.getLocale()));

		numOfMembers = repositoryService.countMembers(rows, getIdentity());
		this.rows = rows;
		initForm(ureq);
	}

	@Override
	protected void initForm(FormItemContainer formLayout, Controller listener, UserRequest ureq) {
		if(formLayout instanceof FormLayoutContainer) {
			FormLayoutContainer layout = (FormLayoutContainer)formLayout;
			layout.contextPut("numOfMembers", Integer.toString(numOfMembers));

			FormLayoutContainer layoutCont = FormLayoutContainer.createDefaultFormLayout("confirm", getTranslator());
			formLayout.add("confirm", layoutCont);
			layoutCont.setRootForm(mainForm);
			
			StringBuilder message = new StringBuilder();
			for(RepositoryEntry row:rows) {
				if(message.length() > 0) message.append(", ");
				message.append(StringHelper.escapeHtml(row.getDisplayname()));
			}
			
			FormLayoutContainer buttonsCont = FormLayoutContainer.createButtonLayout("buttons", getTranslator());
			layoutCont.add(buttonsCont);
			uifactory.addFormCancelButton("cancel", buttonsCont, ureq, getWindowControl());
			restoreButton = uifactory.addFormLink("tools.restore", buttonsCont, Link.BUTTON);
		}
	}
	
	
	@Override
	protected void doDispose() {
		//
	}

	@Override
	protected boolean validateFormLogic(UserRequest ureq) {
		boolean allOk = true;

		return allOk & super.validateFormLogic(ureq);
	}

	@Override
	protected void formInnerEvent(UserRequest ureq, FormItem source, FormEvent event) {
		if(restoreButton == source) {
			if(validateFormLogic(ureq)) {
				doCompleteRestore(ureq);
				fireEvent(ureq, Event.DONE_EVENT);
			}
		}
	}
	
	@Override
	protected void formOK(UserRequest ureq) {
		//
	}

	@Override
	protected void formCancelled(UserRequest ureq) {
		fireEvent(ureq, Event.CANCELLED_EVENT);
	}
	
	private void doCompleteRestore(UserRequest ureq) {
		for(RepositoryEntry entry:rows) {
			RepositoryEntry reloadedEntry = repositoryService.loadByKey(entry.getKey());
			if(reloadedEntry != null) {
				repositoryService.restoreRepositoryEntry(reloadedEntry);
				ThreadLocalUserActivityLogger.log(LearningResourceLoggingAction.LEARNING_RESOURCE_RESTORE, getClass(),
						LoggingResourceable.wrap(reloadedEntry, OlatResourceableType.genRepoEntry));
				fireEvent(ureq, new EntryChangedEvent(reloadedEntry, getIdentity(), Change.restored, "restored"));
			}
		}
		fireEvent(ureq, Event.DONE_EVENT);
	}
}