001/* 002 * (C) Copyright 2017 Nuxeo (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 * Florent Guillaume 018 */ 019package org.nuxeo.runtime.pubsub; 020 021import org.nuxeo.common.xmap.annotation.XNode; 022import org.nuxeo.common.xmap.annotation.XNodeMap; 023import org.nuxeo.common.xmap.annotation.XObject; 024 025import java.util.HashMap; 026import java.util.Map; 027 028/** 029 * Descriptor for a {@link PubSubProvider} implementation. 030 * 031 * @since 9.1 032 */ 033@XObject("provider") 034public class PubSubProviderDescriptor { 035 036 @XNode("@class") 037 public Class<? extends PubSubProvider> klass; 038 039 @XNodeMap(value = "option", key = "@name", type = HashMap.class, componentType = String.class) 040 public Map<String, String> options = new HashMap<>(); 041 042 public PubSubProvider getInstance() { 043 // dynamic class check, the generics aren't enough 044 if (!PubSubProvider.class.isAssignableFrom(klass)) { 045 throw new RuntimeException("Class does not implement PubSubServiceProvider: " + klass.getName()); 046 } 047 try { 048 return klass.getDeclaredConstructor().newInstance(); 049 } catch (ReflectiveOperationException e) { 050 throw new RuntimeException(e); 051 } 052 } 053 054 public Map<String, String> getOptions() { 055 return options; 056 } 057}