/**
* Copyright (C) 2010-2017 Structr GmbH
*
* 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 Affero 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.ArrayList;
import java.util.Iterator;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.structr.common.SecurityContext;
import org.structr.common.error.FrameworkException;
import org.structr.core.GraphObject;
import org.structr.core.app.Query;
import org.structr.core.app.StructrApp;
import org.structr.core.entity.AbstractNode;
import org.structr.web.entity.AbstractFile;
import org.structr.websocket.StructrWebSocket;
import org.structr.websocket.message.MessageBuilder;
import org.structr.websocket.message.WebSocketMessage;
/**
* Websocket command to list all files with identical paths
*
*/
public class FindDuplicateFilesCommand extends AbstractCommand {
protected static final Logger logger = LoggerFactory.getLogger(FindDuplicateFilesCommand.class.getName());
static {
StructrWebSocket.addCommand(FindDuplicateFilesCommand.class);
}
@Override
public void processMessage(final WebSocketMessage webSocketData) {
final SecurityContext securityContext = getWebSocket().getSecurityContext();
final Query query = StructrApp.getInstance(securityContext).nodeQuery(AbstractFile.class).sort(AbstractFile.path);
try {
AbstractFile lastFile = null;
String lastFilepath = null;
boolean lastWasDupe = false;
final ArrayList<GraphObject> filesWithSamePath = new ArrayList<>();
final Iterator it = query.getAsList().iterator();
while (it.hasNext()) {
final AbstractNode node = (AbstractNode)it.next();
try {
final AbstractFile file = (AbstractFile)node;
final String currentFilepath = file.getProperty(AbstractFile.path);
// skip the first file as we can not compare it to the previous one
if (lastFile != null) {
if (currentFilepath.equals(lastFilepath)) {
if (!lastWasDupe) {
// if this is the first duplicate found we need to add both files
filesWithSamePath.add(lastFile);
}
filesWithSamePath.add(file);
lastWasDupe = true;
} else {
lastWasDupe = false;
}
}
lastFilepath = currentFilepath;
lastFile = file;
} catch (ClassCastException cce) {
logger.warn("Tried casting node '{}' of type '{}' to AbstractFile. Most likely a node type inheriting from File was deleted and an instance remains. Please delete this node or change its type.", node.getUuid(), node.getType());
}
}
// set full result list
webSocketData.setResult(filesWithSamePath);
webSocketData.setRawResultCount(filesWithSamePath.size());
// send only over local connection
getWebSocket().send(webSocketData, true);
} catch (FrameworkException fex) {
logger.warn("Exception occured", fex);
getWebSocket().send(MessageBuilder.status().code(fex.getStatus()).message(fex.getMessage()).build(), true);
}
}
//~--- get methods ----------------------------------------------------
@Override
public String getCommand() {
return "FIND_DUPLICATES";
}
}