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ConsulPropertySourceLocator.java
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ConsulPropertySourceLocator.java
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/*
* Copyright 2013-2019 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
*
* https://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.consul.config;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.List;
import com.ecwid.consul.v1.ConsulClient;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.cloud.bootstrap.config.PropertySourceLocator;
import org.springframework.core.annotation.Order;
import org.springframework.core.env.CompositePropertySource;
import org.springframework.core.env.ConfigurableEnvironment;
import org.springframework.core.env.Environment;
import org.springframework.core.env.PropertySource;
import org.springframework.retry.annotation.Retryable;
/**
* @author Spencer Gibb
*/
@Order(0)
public class ConsulPropertySourceLocator implements PropertySourceLocator, ConsulConfigIndexes {
private static final Log log = LogFactory.getLog(ConsulPropertySourceLocator.class);
private final ConsulClient consul;
private final ConsulConfigProperties properties;
private final List<String> contexts = new ArrayList<>();
private final LinkedHashMap<String, Long> contextIndex = new LinkedHashMap<>();
public ConsulPropertySourceLocator(ConsulClient consul, ConsulConfigProperties properties) {
this.consul = consul;
this.properties = properties;
}
@Deprecated
public List<String> getContexts() {
return this.contexts;
}
@Override
public LinkedHashMap<String, Long> getIndexes() {
return this.contextIndex;
}
@Override
@Retryable(interceptor = "consulRetryInterceptor")
public Collection<PropertySource<?>> locateCollection(Environment environment) {
return PropertySourceLocator.locateCollection(this, environment);
}
@Override
@Retryable(interceptor = "consulRetryInterceptor")
public PropertySource<?> locate(Environment environment) {
if (environment instanceof ConfigurableEnvironment) {
ConfigurableEnvironment env = (ConfigurableEnvironment) environment;
ConsulPropertySources sources = new ConsulPropertySources(properties, log);
List<String> profiles = Arrays.asList(env.getActiveProfiles());
this.contexts.addAll(sources.getAutomaticContexts(profiles));
CompositePropertySource composite = new CompositePropertySource("consul");
for (String propertySourceContext : this.contexts) {
ConsulPropertySource propertySource = sources.createPropertySource(propertySourceContext, this.consul,
contextIndex::put);
if (propertySource != null) {
composite.addPropertySource(propertySource);
}
}
return composite;
}
return null;
}
private void addIndex(String propertySourceContext, Long consulIndex) {
this.contextIndex.put(propertySourceContext, consulIndex);
}
private ConsulPropertySource create(String context) {
ConsulPropertySource propertySource = new ConsulPropertySource(context, this.consul, this.properties);
propertySource.init();
addIndex(context, propertySource.getInitialIndex());
return propertySource;
}
}