| /** |
| * 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.ec2.compute.config; |
| |
| import static com.google.common.collect.Iterables.toArray; |
| import static org.jclouds.Constants.PROPERTY_SESSION_INTERVAL; |
| import static org.jclouds.ec2.reference.EC2Constants.PROPERTY_EC2_AMI_OWNERS; |
| |
| import java.util.Set; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| import javax.inject.Named; |
| import javax.inject.Singleton; |
| |
| import org.jclouds.compute.ComputeServiceContext; |
| import org.jclouds.compute.config.BaseComputeServiceContextModule; |
| import org.jclouds.compute.domain.Image; |
| import org.jclouds.concurrent.RetryOnTimeOutExceptionSupplier; |
| import org.jclouds.ec2.compute.EC2ComputeService; |
| import org.jclouds.ec2.compute.domain.RegionAndName; |
| import org.jclouds.ec2.compute.loaders.RegionAndIdToImage; |
| import org.jclouds.ec2.compute.suppliers.RegionAndNameToImageSupplier; |
| import org.jclouds.rest.AuthorizationException; |
| import org.jclouds.rest.suppliers.SetAndThrowAuthorizationExceptionSupplier; |
| |
| import com.google.common.base.Splitter; |
| import com.google.common.base.Supplier; |
| import com.google.common.base.Suppliers; |
| import com.google.common.base.Throwables; |
| import com.google.common.cache.CacheLoader; |
| import com.google.common.cache.LoadingCache; |
| import com.google.common.collect.ImmutableSet; |
| import com.google.inject.Injector; |
| import com.google.inject.Key; |
| import com.google.inject.Provides; |
| import com.google.inject.TypeLiteral; |
| import com.google.inject.name.Names; |
| |
| /** |
| * Configures the {@link ComputeServiceContext}; requires {@link EC2ComputeService} bound. |
| * |
| * @author Adrian Cole |
| */ |
| public class EC2ComputeServiceContextModule extends BaseComputeServiceContextModule { |
| @Override |
| protected void configure() { |
| installDependencies(); |
| install(new EC2BindComputeStrategiesByClass()); |
| install(new EC2BindComputeSuppliersByClass()); |
| super.configure(); |
| } |
| |
| protected void installDependencies(){ |
| install(new EC2ComputeServiceDependenciesModule()); |
| } |
| |
| @Override |
| protected boolean shouldParseImagesOnDemand(Injector injector) { |
| // If no owners to query, then will never lookup all images |
| String[] amiOwners = injector.getInstance(Key.get(String[].class, Names.named(PROPERTY_EC2_AMI_OWNERS))); |
| return (amiOwners.length > 0); |
| } |
| |
| @Override |
| protected Supplier<Set<? extends Image>> supplyNonParsingImageCache( |
| AtomicReference<AuthorizationException> authException, @Named(PROPERTY_SESSION_INTERVAL) long seconds, |
| final Supplier<Set<? extends Image>> imageSupplier, Injector injector) { |
| final Supplier<LoadingCache<RegionAndName, ? extends Image>> cache = injector.getInstance(Key.get(new TypeLiteral<Supplier<LoadingCache<RegionAndName, ? extends Image>>>() {})); |
| return new Supplier<Set<? extends Image>>() { |
| @Override |
| public Set<? extends Image> get() { |
| return ImmutableSet.copyOf(cache.get().asMap().values()); |
| } |
| }; |
| } |
| |
| @Provides |
| @Singleton |
| protected Supplier<LoadingCache<RegionAndName, ? extends Image>> provideRegionAndNameToImageSupplierCache( |
| final RegionAndNameToImageSupplier supplier) { |
| return supplier; |
| } |
| |
| @Provides |
| @Singleton |
| protected Supplier<CacheLoader<RegionAndName, Image>> provideRegionAndNameToImageSupplierCacheLoader( |
| final RegionAndIdToImage delegate) { |
| return Suppliers.<CacheLoader<RegionAndName, Image>>ofInstance(new CacheLoader<RegionAndName, Image>() { |
| private final AtomicReference<AuthorizationException> authException = new AtomicReference<AuthorizationException>(); |
| |
| @Override |
| public Image load(final RegionAndName key) throws Exception { |
| // raw lookup of an image |
| Supplier<Image> rawSupplier = new Supplier<Image>() { |
| @Override public Image get() { |
| try { |
| return delegate.load(key); |
| } catch (ExecutionException e) { |
| throw Throwables.propagate(e); |
| } |
| } |
| }; |
| |
| // wrap in retry logic |
| Supplier<Image> retryingSupplier = new RetryOnTimeOutExceptionSupplier<Image>( |
| new SetAndThrowAuthorizationExceptionSupplier<Image>(rawSupplier, authException)); |
| |
| return retryingSupplier.get(); |
| } |
| |
| }); |
| } |
| |
| @Provides |
| @Singleton |
| @Named(PROPERTY_EC2_AMI_OWNERS) |
| String[] amiOwners(@Named(PROPERTY_EC2_AMI_OWNERS) String amiOwners) { |
| if (amiOwners.trim().equals("")) |
| return new String[] {}; |
| return toArray(Splitter.on(',').split(amiOwners), String.class); |
| } |
| |
| } |
| |