package org.groovymud.utils;
/* Copyright 2008 Matthew Corby-Eaglen
*
* 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.
*/
import java.io.IOException;
import java.util.Arrays;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import org.apache.log4j.Logger;
import org.groovymud.engine.event.EventScope;
import org.groovymud.engine.event.ScopedEvent;
import org.groovymud.engine.event.messages.MessageEvent;
import org.groovymud.engine.event.observer.Observable;
import org.groovymud.object.Container;
import org.groovymud.object.MudObject;
import org.groovymud.object.alive.Alive;
import org.groovymud.shell.telnetd.ExtendedTerminalIO;
/**
* a statically accessed (spit) set of messenger utils
*
* sends messages to various scopes
*
* sending a message to global will send it to everyone (eventually) sending the
* message to room will send it to the room contents (and below) sending it to
* player scope will keep the message private to the player
*
* @author matt
*
*/
public class MessengerUtils {
private static final Logger logger = Logger.getLogger(MessengerUtils.class);
public static void sendMessageToPlayer(Observable source, String sourceMessage) {
fireMessage(EventScope.PLAYER_SCOPE, source, sourceMessage, null);
}
public static void sendMessageToRoom(Observable source, String sourceMessage, String roomMessage) {
fireMessage(EventScope.ROOM_SCOPE, source, sourceMessage, roomMessage);
}
public static void sendMessageToMud(Observable source, String sourceMessage, String roomMessage) {
fireMessage(EventScope.GLOBAL_SCOPE, source, sourceMessage, roomMessage);
}
public static void sendMessageToPlayers(Observable source, String sourceMessage, String targetMessage, MudObject... target) {
fireMessage(EventScope.GLOBAL_SCOPE, source, sourceMessage, targetMessage, target);
}
public static void fireMessage(EventScope scope, Observable source, String sourceMessage, String roomMessage, MudObject... targets) {
MessageEvent msgEvent = new MessageEvent(scope);
msgEvent.setSourceMessage(sourceMessage);
if (targets != null && targets.length > 0) {
msgEvent.setTargets(Arrays.asList(targets));
msgEvent.setTargetMessage(roomMessage);
} else {
msgEvent.setScopeMessage(roomMessage);
}
if (source != null) {
source.fireEvent(msgEvent);
} else {
logger.info(msgEvent);
}
}
public static void writeMessage(Container container, ScopedEvent arg) {
MessageEvent mEvent = (MessageEvent) arg;
Map<String, Set<MudObject>> everyone = container.getInventoryHandler().getMudObjectsMap(true);
Iterator<Set<MudObject>> all = everyone.values().iterator();
while (all.hasNext()) {
Set<MudObject> nextSet = all.next();
Iterator<MudObject> setIterator = nextSet.iterator();
while (setIterator.hasNext()) {
Alive obj = (Alive) setIterator.next();
ExtendedTerminalIO term = obj.getTerminalOutput();
if (term == null) {
continue;
}
if (mEvent.getSource() == obj) {
try {
term.writeln(mEvent.getSourceMessage());
} catch (IOException e) {
logger.error(e, e);
}
} else {
try {
if (mEvent.getScopeMessage() != null) {
term.writeln(mEvent.getScopeMessage());
}
if (mEvent.getTargets().contains(obj)) {
term.writeln(mEvent.getTargetMessage());
}
} catch (IOException e) {
logger.error(e, e);
}
}
}
}
}
}