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jclouds components to access compute providers
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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.cim.functions;

import static com.google.common.collect.Iterables.filter;
import static com.google.common.collect.Iterables.find;
import static com.google.common.collect.Iterables.transform;

import javax.inject.Singleton;

import org.jclouds.cim.CIMPredicates;
import org.jclouds.cim.ResourceAllocationSettingData;
import org.jclouds.cim.ResourceAllocationSettingData.ResourceType;
import org.jclouds.compute.domain.HardwareBuilder;
import org.jclouds.compute.domain.Processor;
import org.jclouds.compute.domain.Volume;
import org.jclouds.compute.domain.internal.VolumeImpl;

import com.google.common.base.Function;

@Singleton
public class HardwareBuilderFromResourceAllocations implements
         Function, HardwareBuilder> {
   @Override
   public HardwareBuilder apply(Iterable from) {
      HardwareBuilder builder = new HardwareBuilder();
      builder.volumes(transform(filter(from, CIMPredicates.resourceTypeIn(ResourceType.DISK_DRIVE,
               ResourceType.BASE_PARTITIONABLE_UNIT, ResourceType.PARTITIONABLE_UNIT)),
               new Function() {

                  @Override
                  public Volume apply(ResourceAllocationSettingData from) {
                     return HardwareBuilderFromResourceAllocations.this.apply(from);
                  }

               }));

      builder.ram((int) find(from, CIMPredicates.resourceTypeIn(ResourceType.MEMORY)).getVirtualQuantity().longValue());

      builder.processors(transform(filter(from, CIMPredicates.resourceTypeIn(ResourceType.PROCESSOR)),
               new Function() {

                  @Override
                  public Processor apply(ResourceAllocationSettingData arg0) {
                     return new Processor(arg0.getVirtualQuantity(), 1);
                  }
               }));
      return builder;
   }

   public Volume apply(ResourceAllocationSettingData from) {
      return new VolumeImpl(from.getAddressOnParent() + "", Volume.Type.LOCAL, from.getVirtualQuantity() == null ? null
               : from.getVirtualQuantity() / (float) (1024 * 1024), null, "0".equals(from.getAddressOnParent())
               || ResourceType.BASE_PARTITIONABLE_UNIT.equals(from.getResourceType()), true);
   }
}