org.jclouds.googlecomputeengine.compute.predicates.AllNodesInGroupTerminated Maven / Gradle / Ivy

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/*
 * 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.jclouds.googlecomputeengine.compute.predicates;

import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.collect.Iterables.all;
import static com.google.common.collect.Sets.filter;
import static org.jclouds.compute.predicates.NodePredicates.TERMINATED;
import static org.jclouds.compute.predicates.NodePredicates.all;
import static org.jclouds.compute.predicates.NodePredicates.inGroup;

import javax.inject.Inject;
import javax.inject.Singleton;

import org.jclouds.compute.ComputeService;

import com.google.common.base.Predicate;

/**
 * @author David Alves
 */
@Singleton
public class AllNodesInGroupTerminated implements Predicate {

   private final ComputeService computeService;

   @Inject
   public AllNodesInGroupTerminated(ComputeService computeService) {
      this.computeService = checkNotNull(computeService, "compute service");
   }


   @Override
   public boolean apply(String groupName) {
      return all(filter(computeService.listNodesDetailsMatching(all()), inGroup(groupName)), TERMINATED);
   }
}