org.jclouds.compute.config.ComputeServiceAdapterContextModule Maven / Gradle / Ivy

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/**
 * 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.compute.config;

import static com.google.common.base.Functions.compose;
import static com.google.common.base.Predicates.notNull;
import static com.google.common.collect.Iterables.filter;
import static com.google.common.collect.Iterables.transform;

import java.util.Set;

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

import org.jclouds.collect.TransformingSetSupplier;
import org.jclouds.compute.ComputeServiceAdapter;
import org.jclouds.compute.domain.Hardware;
import org.jclouds.compute.domain.Image;
import org.jclouds.compute.domain.ImageBuilder;
import org.jclouds.compute.strategy.CreateNodeWithGroupEncodedIntoName;
import org.jclouds.compute.strategy.DestroyNodeStrategy;
import org.jclouds.compute.strategy.GetNodeMetadataStrategy;
import org.jclouds.compute.strategy.ListNodesStrategy;
import org.jclouds.compute.strategy.PopulateDefaultLoginCredentialsForImageStrategy;
import org.jclouds.compute.strategy.RebootNodeStrategy;
import org.jclouds.compute.strategy.ResumeNodeStrategy;
import org.jclouds.compute.strategy.SuspendNodeStrategy;
import org.jclouds.compute.strategy.impl.AdaptingComputeServiceStrategies;
import org.jclouds.domain.Location;
import org.jclouds.domain.LoginCredentials;
import org.jclouds.location.suppliers.LocationsSupplier;

import com.google.common.base.Function;
import com.google.common.base.Supplier;
import com.google.common.collect.ImmutableSet;
import com.google.inject.AbstractModule;
import com.google.inject.Provides;

/**
 * 
 * @author Adrian Cole
 */
public class ComputeServiceAdapterContextModule extends BaseComputeServiceContextModule {

   /**
    * install this, if you want to use your computeservice adapter to handle locations. Note that if
    * you do this, you'll want to instantiate a subclass to prevent type erasure.
    * 
    * ex.
    *     *       install(new LocationsFromComputeServiceAdapterModule(){});
    * 
    * not
    *     *       install(new LocationsFromComputeServiceAdapterModule());
    * 
    */
   public static class LocationsFromComputeServiceAdapterModule extends AbstractModule {

      @Override
      protected void configure() {
      }

      @Provides
      @Singleton
      protected LocationsSupplier supplyLocationsFromComputeServiceAdapter(
               final ComputeServiceAdapter adapter, final Function transformer) {
         return new LocationsSupplier() {
            @Override
            public Set get() {
               Iterable locations = filter(adapter.listLocations(), notNull());
               return ImmutableSet. copyOf(transform(locations, transformer));
            }
         };
      }
   }

   @Provides
   @Singleton
   protected Supplier> provideHardware(final ComputeServiceAdapter adapter,
            Function transformer) {
      return new TransformingSetSupplier(new Supplier>() {

         @Override
         public Iterable get() {
            return adapter.listHardwareProfiles();
         }

      }, transformer);
   }

   @Provides
   @Singleton
   protected Supplier> provideImages(final ComputeServiceAdapter adapter,
            Function transformer, AddDefaultCredentialsToImage addDefaultCredentialsToImage) {
      return new TransformingSetSupplier(new Supplier>() {

         @Override
         public Iterable get() {
            return filter(adapter.listImages(), notNull());
         }

      }, compose(addDefaultCredentialsToImage, transformer));
   }

   @Singleton
   public static class AddDefaultCredentialsToImage implements Function {
      private final PopulateDefaultLoginCredentialsForImageStrategy credsForImage;

      @Inject
      public AddDefaultCredentialsToImage(PopulateDefaultLoginCredentialsForImageStrategy credsForImage) {
         this.credsForImage = credsForImage;
      }

      @Override
      public Image apply(Image arg0) {
         if (arg0 == null)
            return null;
         LoginCredentials credentials = credsForImage.apply(arg0);
         return credentials != null ? ImageBuilder.fromImage(arg0).defaultCredentials(credentials).build() : arg0;
      }

      @Override
      public String toString() {
         return "addDefaultCredentialsToImage()";
      }
   }

   @Provides
   @Singleton
   protected CreateNodeWithGroupEncodedIntoName defineAddNodeWithTagStrategy(
            AdaptingComputeServiceStrategies in) {
      return in;
   }

   @Provides
   @Singleton
   protected DestroyNodeStrategy defineDestroyNodeStrategy(AdaptingComputeServiceStrategies in) {
      return in;
   }

   @Provides
   @Singleton
   protected GetNodeMetadataStrategy defineGetNodeMetadataStrategy(AdaptingComputeServiceStrategies in) {
      return in;
   }

   @Provides
   @Singleton
   protected ListNodesStrategy defineListNodesStrategy(AdaptingComputeServiceStrategies in) {
      return in;
   }

   @Provides
   @Singleton
   protected RebootNodeStrategy defineRebootNodeStrategy(AdaptingComputeServiceStrategies in) {
      return in;
   }

   @Provides
   @Singleton
   protected ResumeNodeStrategy defineStartNodeStrategy(AdaptingComputeServiceStrategies in) {
      return in;
   }

   @Provides
   @Singleton
   protected SuspendNodeStrategy defineStopNodeStrategy(AdaptingComputeServiceStrategies in) {
      return in;
   }
}