001/*
002 * Copyright 2012-2018 the original author or authors.
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
017package org.springframework.boot.autoconfigure.cloud;
018
019import org.springframework.boot.autoconfigure.AutoConfigureOrder;
020import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
021import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
022import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
023import org.springframework.cloud.Cloud;
024import org.springframework.cloud.app.ApplicationInstanceInfo;
025import org.springframework.cloud.config.java.CloudScan;
026import org.springframework.cloud.config.java.CloudScanConfiguration;
027import org.springframework.context.annotation.Configuration;
028import org.springframework.context.annotation.Import;
029import org.springframework.context.annotation.Profile;
030import org.springframework.core.Ordered;
031
032/**
033 * {@link EnableAutoConfiguration Auto-configuration} for Spring Cloud Service Connectors.
034 * <p>
035 * Activates when there is no bean of type {@link Cloud} and the "cloud" profile is
036 * active.
037 * <p>
038 * Once in effect, the auto-configuration is the equivalent of adding the
039 * {@link CloudScan} annotation in one of the configuration file. Specifically, it adds a
040 * bean for each service bound to the application and one for
041 * {@link ApplicationInstanceInfo}.
042 *
043 * @author Ramnivas Laddad
044 * @since 2.1.0
045 */
046@Configuration
047@Profile("cloud")
048@AutoConfigureOrder(CloudServiceConnectorsAutoConfiguration.ORDER)
049@ConditionalOnClass(CloudScanConfiguration.class)
050@ConditionalOnMissingBean(Cloud.class)
051@Import(CloudScanConfiguration.class)
052public class CloudServiceConnectorsAutoConfiguration {
053
054        // Cloud configuration needs to happen early (before data, mongo etc.)
055        public static final int ORDER = Ordered.HIGHEST_PRECEDENCE + 20;
056
057}