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Spring Cloud Context

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/*
 * Copyright 2013-2014 the original author or authors.
 *
 * Licensed 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.springframework.cloud.autoconfigure;

import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration;
import org.springframework.cloud.context.environment.EnvironmentManager;
import org.springframework.cloud.context.refresh.ContextRefresher;
import org.springframework.cloud.context.scope.refresh.RefreshScope;
import org.springframework.cloud.logging.LoggingRebinder;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.ConfigurableEnvironment;

/**
 * Autoconfiguration for the refresh scope and associated features to do with changes in
 * the Environment (e.g. rebinding logger levels).
 *
 * @author Dave Syer
 * @author Venil Noronha
 */
@Configuration
@ConditionalOnClass(RefreshScope.class)
@AutoConfigureAfter(WebMvcAutoConfiguration.class)
public class RefreshAutoConfiguration {

	@Bean
	@ConditionalOnMissingBean
	public static RefreshScope refreshScope() {
		return new RefreshScope();
	}

	@Bean
	@ConditionalOnMissingBean
	public static LoggingRebinder loggingRebinder() {
		return new LoggingRebinder();
	}

	@Bean
	@ConditionalOnMissingBean
	public EnvironmentManager environmentManager(ConfigurableEnvironment environment) {
		return new EnvironmentManager(environment);
	}

	@Bean
	@ConditionalOnMissingBean
	public ContextRefresher contextRefresher(ConfigurableApplicationContext context,
			RefreshScope scope) {
		return new ContextRefresher(context, scope);
	}

}