text: /**
   * Licensed to jclouds, Inc. (jclouds) under one or more
   * contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  jclouds 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.cloudstack.predicates;
  
  import static com.google.common.base.Preconditions.checkNotNull;
  
  import javax.annotation.Resource;
  import javax.inject.Singleton;
  
  import org.jclouds.cloudstack.CloudStackClient;
  import org.jclouds.cloudstack.domain.VirtualMachine;
  import org.jclouds.logging.Logger;
  
  import com.google.common.base.Predicate;
  import com.google.inject.Inject;
  
  /**
   * 
   * Tests to see if a virtualMachine is expunged from the system
   * 
   * @author Andrei Savu
   */
  @Singleton
  public class VirtualMachineExpunged implements Predicate<VirtualMachine> {
  
     private final CloudStackClient client;
  
     @Resource
     protected Logger logger = Logger.NULL;
  
     @Inject
     public VirtualMachineExpunged(CloudStackClient client) {
        this.client = client;
     }
  
     public boolean apply(VirtualMachine virtualMachine) {
        logger.trace("looking for state on virtualMachine %s", checkNotNull(virtualMachine, "virtualMachine"));
        return refresh(virtualMachine) == null;
     }
  
     private VirtualMachine refresh(VirtualMachine virtualMachine) {
        return client.getVirtualMachineClient().getVirtualMachine(virtualMachine.getId());
     }
  }
  