io.hyscale.deployer.services.handler.ResourceHandlers Maven / Gradle / Ivy
/**
* Copyright 2019 Pramati Prism, Inc.
*
* 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.hyscale.deployer.services.handler;
import java.util.*;
import java.util.stream.Collectors;
public final class ResourceHandlers {
private ResourceHandlers() {}
private static Map kindVsHandler;
public static void registerHandlers() {
if (kindVsHandler == null) {
kindVsHandler = new HashMap<>();
for (ResourceLifeCycleHandler handler : ServiceLoader.load(ResourceLifeCycleHandler.class,
ResourceHandlers.class.getClassLoader())) {
kindVsHandler.put(handler.getKind(), handler);
}
}
}
/**
*
* @param kind
* @return ResourceLifeCycleHandler for the kind, null if not found
*/
public static ResourceLifeCycleHandler getHandlerOf(String kind) {
return kindVsHandler.get(kind);
}
/**
*
* @return Unmodifiable list of all available ResourceLifeCycleHandler
*/
public static List getAllHandlers(){
if (kindVsHandler == null) {
return Collections.emptyList();
}
return Collections.unmodifiableList(kindVsHandler.values().stream().collect(Collectors.toList()));
}
}