/**
    * Copyright 2004-2014 The Kuali Foundation
    *
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    *
   * 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.kuali.common.aws.ec2.impl;
  
  import static org.kuali.common.util.base.Precondition.checkNotBlank;
  import static org.kuali.common.util.base.Precondition.checkNotNull;
  
  import org.kuali.common.aws.ec2.api.EC2Service;
  import org.kuali.common.util.condition.Condition;
  
  import com.amazonaws.services.ec2.model.Snapshot;
  
  /**
   * 
   */
  public final class SnapshotStateCondition implements Condition {
  
  	public SnapshotStateCondition(EC2Service service, String snapshotId, String state) {
  		this.service = checkNotNull(service, "service");
  		this.snapshotId = checkNotBlank(snapshotId, "snapshotId");
  		this.state = checkNotBlank(state, "state");
  	}
  
  	private final EC2Service service;
  	private final String snapshotId;
  	private final String state;
  
  	@Override
  	public boolean isTrue() {
  		Snapshot snapshot = service.getSnapshot(snapshotId);
  		return this.state.equals(snapshot.getState());
  	}
  
  }