| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.vysper.xmpp.protocol; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.vysper.xmpp.stanza.Stanza; |
| |
| /** |
| * Default implementation of {@link HandlerDictionary}. Will simple check all handlers |
| * |
| * @author The Apache MINA Project (dev@mina.apache.org) |
| */ |
| public class DefaultHandlerDictionary implements HandlerDictionary { |
| |
| private List<StanzaHandler> handlerList = new ArrayList<StanzaHandler>(); |
| |
| private boolean sealed = false; |
| |
| public DefaultHandlerDictionary() { |
| } |
| |
| public DefaultHandlerDictionary(List<StanzaHandler> handlerList) { |
| if (handlerList != null) { |
| for (StanzaHandler stanzaHandler : handlerList) { |
| register(stanzaHandler); |
| } |
| } |
| seal(); |
| } |
| |
| public DefaultHandlerDictionary(StanzaHandler stanzaHandler) { |
| register(stanzaHandler); |
| seal(); |
| } |
| |
| public void register(StanzaHandler stanzaHandler) { |
| if (sealed) |
| throw new IllegalStateException("stanza directory is sealed. registering denied."); |
| if (stanzaHandler == null || stanzaHandler.getName() == null) |
| throw new IllegalArgumentException("stanza handler not complete"); |
| |
| if (handlerList.contains(stanzaHandler)) |
| throw new IllegalStateException("stanza handler already in handlerList: " + stanzaHandler.getName()); |
| handlerList.add(stanzaHandler); |
| } |
| |
| public void seal() { |
| sealed = true; |
| } |
| |
| /** |
| * returns the first handler whose verify method returns true for the given stanza |
| * @param stanza |
| */ |
| public StanzaHandler get(Stanza stanza) { |
| for (StanzaHandler stanzaHandler : handlerList) { |
| if (stanzaHandler.verify(stanza)) |
| return stanzaHandler; |
| } |
| return null; |
| } |
| } |