io.cereebro.core.DefaultSystemService Maven / Gradle / Ivy
/*
* Copyright © 2017 the original authors (http://cereebro.io)
*
* 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.cereebro.core;
import java.util.Objects;
/**
* Default SystemService that does all the wiring between the SystemResolver and
* SnitchRegistry. No caching, the System is resolved every time.
*
* @author michaeltecourt
*/
public class DefaultSystemService implements SystemService {
private final String name;
private final SystemResolver systemResolver;
private final SnitchRegistry snitchRegistry;
/**
* Default SystemService that does all the wiring between the SystemResolver
* and SnitchRegistry. No caching, the System is resolved every time.
*
* @param name
* System name.
* @param systemResolver
* Used to resolve a System out of fragments.
* @param snitchRegistry
* Provides all the {@link Snitch} instances available.
*/
public DefaultSystemService(String name, SystemResolver systemResolver, SnitchRegistry snitchRegistry) {
this.name = Objects.requireNonNull(name);
this.systemResolver = Objects.requireNonNull(systemResolver, "System resolver required");
this.snitchRegistry = Objects.requireNonNull(snitchRegistry, "Snitch registry required");
}
@Override
public System get() {
return systemResolver.resolve(name, snitchRegistry);
}
}