/*
* Copyright (C) 2010 Stanford University
*
* 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 edu.stanford.junction.provider.irc;
import java.util.List;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
public class MessageDemultiplexer {
public static class CompleteMessage{
public final String from;
public final String msg;
public CompleteMessage(String from, String msg){
this.from = from;
this.msg = msg;
}
}
private Map<String,String> buffer = new HashMap<String,String>();
private List<CompleteMessage> complete = new ArrayList<CompleteMessage>();
public void addFragment(String frag, String from){
String cur = "";
if(buffer.containsKey(from)){
cur = buffer.get(from);
}
if(frag.startsWith(MessageMultiplexer.TERM)){
String lastFrag = frag.substring(MessageMultiplexer.TERM.length());
complete.add(new CompleteMessage(from, cur + lastFrag));
buffer.remove(from);
}
else{
buffer.put(from, cur + frag);
}
}
public List<CompleteMessage> drainCompleteMessages(){
List<CompleteMessage> result = new ArrayList<CompleteMessage>(complete);
complete.clear();
return result;
}
}