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/*
* Copyright © 2016-2018 European Support Limited
*
* 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.onap.config.api;
import java.util.Iterator;
import java.util.ServiceConfigurationError;
import java.util.ServiceLoader;
/**
* Loads a Java SPI binding for the configuration service.
*
* @author evitaliy
* @since 29 Oct 2018
*/
class ConfigurationLoader {
private ConfigurationLoader() {
}
static Configuration load() {
ServiceLoader<ConfigurationManager> loader = ServiceLoader.load(ConfigurationManager.class);
Iterator<ConfigurationManager> configManagers = loader.iterator();
while (configManagers.hasNext()) {
try {
return configManagers.next();
} catch (ServiceConfigurationError e) {
// this provider loading has failed, let's try next one
}
}
throw new IllegalStateException("No binding found for configuration service");
}
}
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