| /* |
| * 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.ignite.springframework.boot.autoconfigure; |
| |
| import org.apache.ignite.Ignite; |
| import org.apache.ignite.Ignition; |
| import org.apache.ignite.configuration.IgniteConfiguration; |
| import org.springframework.beans.factory.BeanFactory; |
| import org.springframework.boot.autoconfigure.condition.ConditionalOnBean; |
| import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean; |
| import org.springframework.boot.context.properties.ConfigurationProperties; |
| import org.springframework.boot.context.properties.EnableConfigurationProperties; |
| import org.springframework.context.annotation.Bean; |
| import org.springframework.context.annotation.Configuration; |
| |
| /** |
| * Ignite node auto configuration. |
| * Spring will use this class to autoconfigure Ignite node on application startup. |
| * |
| * Initialization of the node will be the following: |
| * <ul> |
| * <li>If {@link IgniteConfiguration} bean exists in {@link BeanFactory} it will be used for the node start.</li> |
| * <li>If {@link IgniteConfiguration} bean doesn't exists following rules are applied: |
| * <ol> |
| * <li>If bean of the type {@link IgniteConfigurer} exists in {@link BeanFactory} |
| * it will be used to customize empty {@link IgniteConfiguration} instance. |
| * If you want to set custom SPI instances or similar hardcoded values. |
| * You should do it in custom {@link IgniteConfigurer}.</li> |
| * <li>Application properties will override config values. Prefix for properties names is "ignite".</li> |
| * </ol> |
| * </li> |
| * </ul> |
| * |
| * Example of application property: |
| * <pre> |
| * ignite.igniteInstanceName=my-instance |
| * </pre> |
| * |
| * @see IgniteConfigurer |
| * @see IgniteConfiguration |
| * @see Ignite |
| */ |
| @Configuration |
| @EnableConfigurationProperties |
| public class IgniteAutoConfiguration { |
| /** Ignite configuration properties prefix. */ |
| public static final String IGNITE_PROPS_PREFIX = "ignite"; |
| |
| /** |
| * @return Default(empty) Ignite configurer. |
| */ |
| @ConditionalOnMissingBean |
| @Bean |
| public IgniteConfigurer nodeConfigurer() { |
| return cfg -> { /* No-op. */ }; |
| } |
| |
| /** |
| * Provides an instance of {@link IgniteConfiguration} customized with the {@link IgniteConfigurer}. |
| * |
| * @param configurer Configurer. |
| * @return Ignite configuration. |
| */ |
| @ConditionalOnMissingBean |
| @Bean |
| @ConfigurationProperties(prefix = IGNITE_PROPS_PREFIX) |
| public IgniteConfiguration igniteConfiguration(IgniteConfigurer configurer) { |
| IgniteConfiguration cfg = new IgniteConfiguration(); |
| |
| configurer.accept(cfg); |
| |
| return cfg; |
| } |
| |
| /** |
| * Starts an {@link Ignite} node. |
| * |
| * @param cfg Configuration. |
| * @return Ignite instance. |
| */ |
| @ConditionalOnBean(IgniteConfiguration.class) |
| @Bean |
| public Ignite ignite(IgniteConfiguration cfg) { |
| return Ignition.start(cfg); |
| } |
| } |