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 * 017 * Contributors: 018 * anechaev 019 */ 020package org.nuxeo.runtime.kafka; 021 022import java.util.HashMap; 023import java.util.Map; 024import java.util.Properties; 025import java.util.Set; 026 027import org.apache.commons.logging.Log; 028import org.apache.commons.logging.LogFactory; 029import org.nuxeo.runtime.model.ComponentContext; 030import org.nuxeo.runtime.model.ComponentInstance; 031import org.nuxeo.runtime.model.DefaultComponent; 032 033public class KafkaConfigServiceImpl extends DefaultComponent implements KafkaConfigService { 034 public static final String KAFKA_CONFIG_XP = "kafkaConfig"; 035 036 public static final int APPLICATION_STARTED_ORDER = -600; 037 038 private static final Log log = LogFactory.getLog(KafkaConfigServiceImpl.class); 039 040 protected final Map<String, KafkaConfigDescriptor> configs = new HashMap<>(); 041 042 @Override 043 public void registerContribution(Object contribution, String extensionPoint, ComponentInstance contributor) { 044 if (extensionPoint.equals(KAFKA_CONFIG_XP)) { 045 KafkaConfigDescriptor descriptor = (KafkaConfigDescriptor) contribution; 046 configs.put(descriptor.name, descriptor); 047 log.info(String.format("Register Kafka contribution: %s", descriptor.name)); 048 } 049 } 050 051 @Override 052 public int getApplicationStartedOrder() { 053 // since there is no dependencies, let's start before main nuxeo core services 054 return APPLICATION_STARTED_ORDER; 055 } 056 057 @Override 058 public void deactivate(ComponentContext context) { 059 super.deactivate(context); 060 log.debug("Deactivating service"); 061 } 062 063 @Override 064 public void activate(ComponentContext context) { 065 super.activate(context); 066 log.debug("Activating service"); 067 } 068 069 @Override 070 public Set<String> listConfigNames() { 071 return configs.keySet(); 072 } 073 074 @Override 075 public String getZkServers(String configName) { 076 checkConfigName(configName); 077 return configs.get(configName).zkServers; 078 } 079 080 protected void checkConfigName(String configName) { 081 if (!configs.containsKey(configName)) { 082 throw new IllegalArgumentException("Unknown configuration name: " + configName); 083 } 084 } 085 086 @Override 087 public Properties getProducerProperties(String configName) { 088 checkConfigName(configName); 089 return configs.get(configName).getProducerProperties(); 090 } 091 092 @Override 093 public Properties getConsumerProperties(String configName) { 094 checkConfigName(configName); 095 return configs.get(configName).getConsumerProperties(); 096 } 097 098 @Override 099 public String getTopicPrefix(String configName) { 100 checkConfigName(configName); 101 return configs.get(configName).getTopicPrefix(); 102 } 103}