/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.ambari.server.utils;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import org.apache.ambari.server.actionmanager.HostRoleCommand;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class CommandUtils {
private static Logger LOG = LoggerFactory.getLogger(CommandUtils.class);
/**
* Converts a collection of commands to {@code}Map{@code} from command.taskId to command.
*/
public static Map<Long, HostRoleCommand> convertToTaskIdCommandMap(Collection<HostRoleCommand> commands) {
if (commands == null || commands.isEmpty()) {
return Collections.emptyMap();
}
Map<Long, HostRoleCommand> result = new HashMap<>();
for (HostRoleCommand command : commands) {
result.put(command.getTaskId(), command);
}
return result;
}
}