001/* 002 * (C) Copyright 2006-2016 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * tiry 018 */ 019package org.nuxeo.ecm.core.event.pipe.dispatch; 020 021import java.util.ArrayList; 022import java.util.List; 023 024/** 025 * Simple stacking descriptor registry 026 * 027 * @since 8.4 028 */ 029public class EventDispatcherRegistry { 030 031 protected List<EventDispatcherDescriptor> contribs = new ArrayList<>(); 032 033 public void addContrib(EventDispatcherDescriptor contrib) { 034 contribs.add(contrib); 035 } 036 037 public void removeContrib(EventDispatcherDescriptor contrib) { 038 contribs.removeIf(descriptor -> descriptor.getName().equals(contrib.getName())); 039 } 040 041 public EventDispatcherDescriptor getDispatcherDescriptor() { 042 return contribs.isEmpty() ? null : contribs.get(contribs.size() - 1); 043 } 044}