/**
* Copyright (C) 2010-2014 Morgner UG (haftungsbeschränkt)
*
* This file is part of Structr <http://structr.org>.
*
* Structr is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* Structr is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Structr. If not, see <http://www.gnu.org/licenses/>.
*/
package org.structr.websocket.command;
import java.util.List;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.structr.common.SecurityContext;
import org.structr.common.error.FrameworkException;
import org.structr.core.app.App;
import org.structr.core.app.StructrApp;
import org.structr.web.Importer;
import org.structr.web.diff.InvertibleModificationOperation;
import org.structr.web.entity.dom.Page;
import org.structr.websocket.StructrWebSocket;
import org.structr.websocket.message.MessageBuilder;
import org.structr.websocket.message.WebSocketMessage;
/**
*
* @author Axel Morgner
*/
public class SavePageCommand extends AbstractCommand {
private static final Logger logger = Logger.getLogger(SavePageCommand.class.getName());
static {
StructrWebSocket.addCommand(SavePageCommand.class);
}
@Override
public void processMessage(WebSocketMessage webSocketData) {
final String pageId = webSocketData.getId();
final Map<String, Object> nodeData = webSocketData.getNodeData();
final String modifiedHtml = (String) nodeData.get("source");
final SecurityContext securityContext = getWebSocket().getSecurityContext();
final App app = StructrApp.getInstance(securityContext);
Page modifiedPage = null;
Page sourcePage = getPage(pageId);
if (sourcePage != null) {
try {
// parse page from modified source
modifiedPage = Importer.parsePageFromSource(securityContext, modifiedHtml, "__SavePageCommand_Temporary_Page__");
final List<InvertibleModificationOperation> changeSet = Importer.diffPages(sourcePage, modifiedPage);
for (final InvertibleModificationOperation op : changeSet) {
// execute operation
op.apply(app, sourcePage, modifiedPage);
}
} catch (Throwable t) {
logger.log(Level.WARNING, t.toString());
t.printStackTrace();
// send exception
getWebSocket().send(MessageBuilder.status().code(422).message(t.toString()).build(), true);
}
try {
app.delete(modifiedPage);
} catch (FrameworkException ex) {
ex.printStackTrace();
}
} else {
// send exception
getWebSocket().send(MessageBuilder.status().code(422).message("Cannot save page").build(), true);
}
}
@Override
public String getCommand() {
return "SAVE_PAGE";
}
}