| /** |
| * 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.openstack.config; |
| |
| import static com.google.common.base.Suppliers.memoizeWithExpiration; |
| import static com.google.common.base.Throwables.propagate; |
| |
| import java.util.Date; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.TimeoutException; |
| |
| import javax.inject.Inject; |
| import javax.inject.Named; |
| import javax.inject.Singleton; |
| |
| import org.jclouds.Constants; |
| import org.jclouds.concurrent.RetryOnTimeOutExceptionFunction; |
| import org.jclouds.date.TimeStamp; |
| import org.jclouds.domain.Credentials; |
| import org.jclouds.http.RequiresHttp; |
| import org.jclouds.location.Provider; |
| import org.jclouds.openstack.Authentication; |
| import org.jclouds.openstack.OpenStackAuthAsyncClient; |
| import org.jclouds.openstack.OpenStackAuthAsyncClient.AuthenticationResponse; |
| import org.jclouds.rest.AsyncClientFactory; |
| |
| import com.google.common.base.Function; |
| import com.google.common.base.Supplier; |
| import com.google.common.cache.CacheBuilder; |
| import com.google.common.cache.CacheLoader; |
| import com.google.common.cache.LoadingCache; |
| import com.google.inject.AbstractModule; |
| import com.google.inject.Provides; |
| import com.google.inject.TypeLiteral; |
| |
| /** |
| * Configures the Rackspace authentication service connection, including logging and http transport. |
| * |
| * @author Adrian Cole |
| */ |
| @RequiresHttp |
| public class OpenStackAuthenticationModule extends AbstractModule { |
| |
| @Override |
| protected void configure() { |
| bind(new TypeLiteral<Function<Credentials, AuthenticationResponse>>() { |
| }).to(GetAuthenticationResponse.class); |
| } |
| |
| /** |
| * borrowing concurrency code to ensure that caching takes place properly |
| */ |
| @Provides |
| @Singleton |
| @Authentication |
| protected Supplier<String> provideAuthenticationTokenCache(final Supplier<AuthenticationResponse> supplier) |
| throws InterruptedException, ExecutionException, TimeoutException { |
| return new Supplier<String>() { |
| public String get() { |
| return supplier.get().getAuthToken(); |
| } |
| }; |
| } |
| |
| @Provides |
| @Provider |
| protected Credentials provideAuthenticationCredentials(@Named(Constants.PROPERTY_IDENTITY) String user, |
| @Named(Constants.PROPERTY_CREDENTIAL) String key) { |
| return new Credentials(user, key); |
| } |
| |
| @Singleton |
| public static class GetAuthenticationResponse extends |
| RetryOnTimeOutExceptionFunction<Credentials, AuthenticationResponse> { |
| |
| @Inject |
| public GetAuthenticationResponse(final AsyncClientFactory factory) { |
| super(new Function<Credentials, AuthenticationResponse>() { |
| |
| @Override |
| public AuthenticationResponse apply(Credentials input) { |
| try { |
| Future<AuthenticationResponse> response = factory.create(OpenStackAuthAsyncClient.class) |
| .authenticate(input.identity, input.credential); |
| return response.get(30, TimeUnit.SECONDS); |
| } catch (Exception e) { |
| throw propagate(e); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return "authenticate()"; |
| } |
| }); |
| |
| } |
| } |
| |
| @Provides |
| @Singleton |
| public LoadingCache<Credentials, AuthenticationResponse> provideAuthenticationResponseCache2( |
| Function<Credentials, AuthenticationResponse> getAuthenticationResponse) { |
| return CacheBuilder.newBuilder().expireAfterWrite(23, TimeUnit.HOURS).build( |
| CacheLoader.from(getAuthenticationResponse)); |
| } |
| |
| @Provides |
| @Singleton |
| protected Supplier<AuthenticationResponse> provideAuthenticationResponseSupplier( |
| final LoadingCache<Credentials, AuthenticationResponse> cache, @Provider final Credentials creds) { |
| return new Supplier<AuthenticationResponse>() { |
| @Override |
| public AuthenticationResponse get() { |
| try { |
| return cache.get(creds); |
| } catch (ExecutionException e) { |
| throw propagate(e.getCause()); |
| } |
| } |
| }; |
| } |
| |
| @Provides |
| @Singleton |
| @TimeStamp |
| protected Supplier<Date> provideCacheBusterDate() { |
| return memoizeWithExpiration(new Supplier<Date>() { |
| public Date get() { |
| return new Date(); |
| } |
| }, 1, TimeUnit.SECONDS); |
| } |
| |
| @Provides |
| @Singleton |
| protected AuthenticationResponse provideAuthenticationResponse(Supplier<AuthenticationResponse> supplier) |
| throws InterruptedException, ExecutionException, TimeoutException { |
| return supplier.get(); |
| } |
| |
| } |