io.micronaut.runtime.context.env.CommandLinePropertySource Maven / Gradle / Ivy
/*
* Copyright 2017-2018 original 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 io.micronaut.runtime.context.env;
import io.micronaut.context.env.MapPropertySource;
import io.micronaut.context.env.SystemPropertiesPropertySource;
import io.micronaut.core.cli.CommandLine;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;
/**
* A {@link io.micronaut.context.env.PropertySource} for properties parsed from the command line.
*
* @author Graeme Rocher
* @since 1.0
*/
public class CommandLinePropertySource extends MapPropertySource {
/**
* The position of the loader.
*/
public static final int POSITION = SystemPropertiesPropertySource.POSITION + 100;
/**
* The name of the property source.
*/
public static final String NAME = "cli";
/**
* Construct the CommandLinePropertySource from properties passed from command line.
*
* @param commandLine Represents the parsed command line options.
*/
public CommandLinePropertySource(CommandLine commandLine) {
super(NAME, resolveValues(commandLine));
}
@Override
public int getOrder() {
return POSITION;
}
private static Map resolveValues(CommandLine commandLine) {
if (commandLine == null) {
return Collections.emptyMap();
}
LinkedHashMap map = new LinkedHashMap<>(commandLine.getUndeclaredOptions());
for (Map.Entry entry : commandLine.getSystemProperties().entrySet()) {
map.put(entry.getKey().toString(), entry.getValue());
}
return map;
}
}