EnvironmentMapModuleConfig.java
/**
* Copyright (c) 2018, RTE (http://www.rte-france.com)
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
* SPDX-License-Identifier: MPL-2.0
*/
package com.powsybl.commons.config;
import java.nio.file.FileSystem;
import java.util.Map;
import java.util.Set;
import static com.powsybl.commons.config.EnvironmentModuleConfigRepository.SEPARATOR;
import static com.powsybl.commons.config.EnvironmentModuleConfigRepository.UPPER_UNDERSCORE_FORMATTER;
/**
* A {@link ModuleConfig} designed to read property values
* from the map of environment variables.
*
* For a configuration property named "property-name" in module "module-name",
* the expected environment variables name is MODULE_NAME__PROPERTY_NAME.
* CamelCase names are also translated to underscore-separated names.
*
* @author Yichen TANG {@literal <yichen.tang at rte-france.com>}
*/
public class EnvironmentMapModuleConfig extends MapModuleConfig {
private final String prefix;
public EnvironmentMapModuleConfig(Map<Object, Object> properties, FileSystem fs, String moduleName) {
super(properties, fs);
this.prefix = UPPER_UNDERSCORE_FORMATTER.apply(moduleName) + SEPARATOR;
}
private String toUpper(String name) {
return prefix + UPPER_UNDERSCORE_FORMATTER.apply(name);
}
@Override
public boolean hasProperty(String name) {
return super.hasProperty(toUpper(name));
}
@Override
protected Object getValue(String propertyName) {
return super.getValue(toUpper(propertyName));
}
@Override
public Set<String> getPropertyNames() {
throw new UnsupportedOperationException();
}
}