/*
* TV-Browser
* Copyright (C) 04-2003 Martin Oberhauser (martin_oat@yahoo.de)
*
* 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 2
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* CVS information:
* $RCSfile$
* $Source$
* $Date: 2010-01-23 09:28:12 +0100 (Sat, 23 Jan 2010) $
* $Author: bananeweizen $
* $Revision: 6391 $
*/
package util.tvdataservice;
import java.util.HashMap;
import tvdataservice.MutableChannelDayProgram;
import devplugin.Channel;
import devplugin.Date;
import devplugin.Program;
/**
* You can pass Program objects to this dispatcher and it will put it in the
* right AbstractChannelDayProgram.
* <p>
* After passing all programs to the dispatcher you can request the
* AbstractChannelDayPrograms.
*
* @author Til Schneider, www.murfman.de
*/
public class ProgramDispatcher {
/**
* Contains for a Date (key) a hash containing for a Channel (key)
* an MutableChannelDayProgram (value).
*/
private HashMap<Date, HashMap<Channel, MutableChannelDayProgram>> mDayProgramHash;
/**
* Creates a new instance of ProgramDispatcher.
*/
public ProgramDispatcher() {
mDayProgramHash = new HashMap<Date, HashMap<Channel, MutableChannelDayProgram>>();
}
/**
* Dispatches the specified program to the right ChannelDayProgram.
* <p>
* If there is no such ChannelDayProgram, it will be created.
*
* @param program The program to dispatch
*/
public void dispatch(Program program) {
Date date = program.getDate();
Channel channel = program.getChannel();
MutableChannelDayProgram channelDayProg
= getChannelDayProgram(date, channel, true);
channelDayProg.addProgram(program);
}
/**
* Gets the ChannelDayProgram of the specified date and channel.
*
* @param date The date of the wanted ChannelDayProgram.
* @param channel The channel of the wanted ChannelDayProgram.
* @return The ChannelDayProgram of the specified date and channel.
*/
public MutableChannelDayProgram getChannelDayProgram(Date date, Channel channel) {
MutableChannelDayProgram channelDayProgram
= getChannelDayProgram(date, channel, false);
/*
if (channelDayProgram != null) {
mLog.info("Found " + channelDayProgram.getProgramCount()
+ " programs for " + channel.getName() + " on " + date);
}
*/
return channelDayProgram;
}
/**
* Gets the ChannelDayProgram of the specified date and channel.
*
* @param date The date of the wanted ChannelDayProgram.
* @param channel The channel of the wanted ChannelDayProgram.
* @param createIfNotExisting Specifies whether the ChannelDayProgram should
* be created if there was no matching ChannelDayProgram found. If
* false null is returned in this case.
* @return The ChannelDayProgram of the specified date and channel.
*/
private MutableChannelDayProgram getChannelDayProgram(Date date,
Channel channel, boolean createIfNotExisting)
{
// get the hash containg for the channel (key)
// the MutableChannelDayProgram (value)
HashMap<Channel, MutableChannelDayProgram> channelDayProgramHash = mDayProgramHash.get(date);
if (channelDayProgramHash == null) {
if (createIfNotExisting) {
channelDayProgramHash = new HashMap<Channel, MutableChannelDayProgram>();
mDayProgramHash.put(date, channelDayProgramHash);
} else {
return null;
}
}
// get the MutableChannelDayProgram
MutableChannelDayProgram channelDayProg
= channelDayProgramHash.get(channel);
if (channelDayProg == null) {
if (createIfNotExisting) {
channelDayProg = new MutableChannelDayProgram(date, channel);
channelDayProgramHash.put(channel, channelDayProg);
} else {
return null;
}
}
return channelDayProg;
}
}
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