MessageFactory.java
/*
* Syncany, www.syncany.org
* Copyright (C) 2011-2016 Philipp C. Heckel <philipp.heckel@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.syncany.operations.daemon.messages.api;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.syncany.util.StringUtil;
/**
* The message factory serializes and deserializes messages sent to
* or from the daemon via the REST/WS API.
*
* @author Philipp C. Heckel (philipp.heckel@gmail.com)
*/
public abstract class MessageFactory {
protected static final Logger logger = Logger.getLogger(MessageFactory.class.getSimpleName());
protected static Class<? extends Message> getMessageClass(String requestType) throws Exception {
String thisPackage = Message.class.getPackage().getName();
String parentPackage = thisPackage.substring(0, thisPackage.lastIndexOf("."));
String camelCaseMessageType = StringUtil.toCamelCase(requestType);
String fqMessageClassName = parentPackage + "." + camelCaseMessageType;
// Try to load!
try {
return Class.forName(fqMessageClassName).asSubclass(Message.class);
}
catch (Exception e) {
logger.log(Level.INFO, "Could not find FQCN " + fqMessageClassName, e);
throw new Exception("Cannot read request class from request type: " + requestType, e);
}
}
}