org.syphr.mythtv.protocol.events.impl.EventProtocol70 Maven / Gradle / Ivy

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/*
 * Copyright 2011-2012 Gregory P. Moyer
 *
 * 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.syphr.mythtv.protocol.events.impl;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.syphr.mythtv.protocol.events.BackendEventListener63;
import org.syphr.mythtv.protocol.events.EventProtocol;
import org.syphr.mythtv.protocol.events.SystemEvent;
import org.syphr.mythtv.protocol.events.SystemEventData;
import org.syphr.mythtv.protocol.impl.Parser;
import org.syphr.mythtv.util.exception.ProtocolException;
import org.syphr.mythtv.util.exception.ProtocolException.Direction;
import org.syphr.mythtv.util.translate.Translator;

public class EventProtocol70 extends AbstractEventProtocol
{
    public EventProtocol70(Translator translator, Parser parser)
    {
        super(translator, parser, BackendEventListener63.class);
    }

    @Override
    protected EventProtocol createFallbackProtocol()
    {
        return new EventProtocol69(getTranslator(), getParser());
    }

    @Override
    protected EventSender createSender(List fragments) throws ProtocolException,
                                                                                      UnknownEventException
    {
        BackendMessage63 message = new BackendMessage63(fragments);

        try
        {
            String command = message.getCommand();

            if ("SYSTEM_EVENT".equals(command))
            {
                final List args = message.getArgs();
                final SystemEvent event = SystemEvent.valueOf(args.get(0));
                final Map dataMap = new HashMap();

                for (int i = 1; i < args.size(); i += 2)
                {
                    String dataType = args.get(i);
                    String dataValue = args.get(i + 1);

                    if ("RECSTATUS".equals(dataType))
                    {
                        dataMap.put(SystemEventData.REC_STATUS, dataValue);
                    }
                }

                if (!dataMap.isEmpty())
                {
                    return new EventSender()
                    {
                        @Override
                        public void sendEvent(BackendEventListener63 l)
                        {
                            l.systemEvent(event, dataMap);
                        }
                    };
                }
            }
        }
        catch (Exception e)
        {
            throw new ProtocolException(message.toString(), Direction.RECEIVE, e);
        }

        throw new UnknownEventException(message.toString());
    }
}