/**
    *
    * Copyright (C) 2011 Cloud Conscious, LLC. <info@cloudconscious.com>
    *
    * ====================================================================
    * 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 org.jclouds.aws.ec2.compute.suppliers;
  
  /**
   *
   *
   * ====================================================================
   * 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.
   * ====================================================================
   */
  
  import static com.google.common.collect.Iterables.concat;
  import static com.google.common.collect.Maps.newLinkedHashMap;
  import static org.jclouds.aws.ec2.reference.AWSEC2Constants.PROPERTY_EC2_CC_AMIs;
  import static org.jclouds.ec2.options.DescribeImagesOptions.Builder.imageIds;
  import static org.jclouds.ec2.reference.EC2Constants.PROPERTY_EC2_AMI_OWNERS;
  
  import java.util.Map;
  import java.util.Set;
  import java.util.Map.Entry;
  
  import javax.inject.Inject;
  import javax.inject.Named;
  import javax.inject.Singleton;
  
  import org.jclouds.compute.domain.Image;
  import org.jclouds.ec2.compute.domain.RegionAndName;
  import org.jclouds.ec2.compute.functions.EC2ImageParser;
  import org.jclouds.ec2.compute.strategy.DescribeImagesParallel;
  import org.jclouds.ec2.compute.suppliers.RegionAndNameToImageSupplier;
  import org.jclouds.ec2.options.DescribeImagesOptions;
  import org.jclouds.location.Region;
  
  /**
   * 
   * @author Adrian Cole
   */
  @Singleton
  public class AWSRegionAndNameToImageSupplier extends RegionAndNameToImageSupplier {
  
     private final String[] ccAmis;
  
     @Inject
     AWSRegionAndNameToImageSupplier(@Region Set<String> regions, DescribeImagesParallel describer,
              @Named(PROPERTY_EC2_CC_AMIs) String[] ccAmis, @Named(PROPERTY_EC2_AMI_OWNERS) String[] amiOwners,
              EC2ImageParser parser, Map<RegionAndName, Image> images) {
        super(regions, describer, amiOwners, parser, images);
        this.ccAmis = ccAmis;
     }
  
     public Iterable<Entry<String, DescribeImagesOptions>> getDescribeQueriesForOwnersInRegions(Set<String> regions,
              String[] amiOwners) {
        return concat(super.getDescribeQueriesForOwnersInRegions(regions, amiOwners), ccAmisToDescribeQueries(ccAmis)
                 .entrySet());
     }
  
     static Map<String, DescribeImagesOptions> ccAmisToDescribeQueries(String[] ccAmis) {
        Map<String, DescribeImagesOptions> queries = newLinkedHashMap();
        for (String from : ccAmis) {
           queries.put(from.split("/")[0], imageIds(from.split("/")[1]));
        }
        return queries;
     }
  
  }