/*
* 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.ec2.compute.functions;
import static com.google.common.base.Preconditions.checkNotNull;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.ExecutionException;
import javax.inject.Inject;
import javax.inject.Singleton;
import org.jclouds.compute.domain.Image;
import org.jclouds.domain.LoginCredentials;
import org.jclouds.ec2.compute.domain.RegionAndName;
import org.jclouds.ec2.domain.KeyPair;
import org.jclouds.ec2.domain.RunningInstance;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Function;
import com.google.common.base.Optional;
import com.google.common.base.Supplier;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
/**
*
* @author Adrian Cole
*/
@Singleton
public class CredentialsForInstance extends CacheLoader<RunningInstance, Optional<LoginCredentials>> {
private final ConcurrentMap<RegionAndName, KeyPair> credentialsMap;
private final Supplier<LoadingCache<RegionAndName, ? extends Image>> imageMap;
private final Function<RunningInstance, LoginCredentials> passwordCredentialsFromWindowsInstance;
@Inject
CredentialsForInstance(ConcurrentMap<RegionAndName, KeyPair> credentialsMap,
Supplier<LoadingCache<RegionAndName, ? extends Image>> imageMap, Function<RunningInstance, LoginCredentials> passwordCredentialsFromWindowsInstance) {
this.credentialsMap = checkNotNull(credentialsMap, "credentialsMap");
this.imageMap = checkNotNull(imageMap, "imageMap");
this.passwordCredentialsFromWindowsInstance = checkNotNull(passwordCredentialsFromWindowsInstance, "passwordCredentialsFromWindowsInstance");
}
@Override
public Optional<LoginCredentials> load(final RunningInstance instance) throws ExecutionException {
if ("windows".equals(instance.getPlatform())) {
return Optional.of(passwordCredentialsFromWindowsInstance.apply(instance));
} else if (instance.getKeyName() != null) {
return Optional.of(LoginCredentials.builder().user(getLoginAccountFor(instance)).privateKey(getPrivateKeyOrNull(instance)).build());
}
return Optional.absent();
}
@VisibleForTesting
String getPrivateKeyOrNull(RunningInstance instance) {
KeyPair keyPair = credentialsMap.get(new RegionAndName(instance.getRegion(), instance.getKeyName()));
return keyPair != null ? keyPair.getKeyMaterial() : null;
}
@VisibleForTesting
String getLoginAccountFor(RunningInstance from) throws ExecutionException {
return imageMap.get().get(new RegionAndName(from.getRegion(), from.getImageId())).getDefaultCredentials().identity;
}
}