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change cacheloader that can return nulls to return optional so to avoid cacheload exceptions

This commit is contained in:
adriancole 2013-01-10 13:20:27 -08:00
parent 403bfee841
commit 992e9ebbcf
6 changed files with 21 additions and 15 deletions
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5
apis/ec2/src/main/java/org/jclouds/ec2/compute/config/EC2ComputeServiceDependenciesModule.java
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@ -64,6 +64,7 @@ import org.jclouds.predicates.RetryablePredicate;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Function;
import com.google.common.base.Functions;
import com.google.common.base.Optional;
import com.google.common.base.Predicate;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
@ -117,7 +118,7 @@ public class EC2ComputeServiceDependenciesModule extends AbstractModule {
bind(TemplateBuilder.class).to(EC2TemplateBuilderImpl.class);
bind(TemplateOptions.class).to(EC2TemplateOptions.class);
bind(ComputeService.class).to(EC2ComputeService.class);
bind(new TypeLiteral<CacheLoader<RunningInstance, LoginCredentials>>() {
bind(new TypeLiteral<CacheLoader<RunningInstance, Optional<LoginCredentials>>>() {
}).to(CredentialsForInstance.class);
bind(new TypeLiteral<Function<RegionAndName, KeyPair>>() {
}).to(CreateUniqueKeyPair.class);
@ -154,7 +155,7 @@ public class EC2ComputeServiceDependenciesModule extends AbstractModule {
@Provides
@Singleton
protected LoadingCache<RunningInstance, LoginCredentials> credentialsMap(CacheLoader<RunningInstance, LoginCredentials> in) {
protected LoadingCache<RunningInstance, Optional<LoginCredentials>> credentialsMap(CacheLoader<RunningInstance, Optional<LoginCredentials>> in) {
return CacheBuilder.newBuilder().build(in);
}

11
apis/ec2/src/main/java/org/jclouds/ec2/compute/functions/CredentialsForInstance.java
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@ -34,6 +34,7 @@ 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;
@ -43,7 +44,7 @@ import com.google.common.cache.LoadingCache;
* @author Adrian Cole
*/
@Singleton
public class CredentialsForInstance extends CacheLoader<RunningInstance, LoginCredentials> {
public class CredentialsForInstance extends CacheLoader<RunningInstance, Optional<LoginCredentials>> {
private final ConcurrentMap<RegionAndName, KeyPair> credentialsMap;
private final Supplier<LoadingCache<RegionAndName, ? extends Image>> imageMap;
@ -58,13 +59,13 @@ public class CredentialsForInstance extends CacheLoader<RunningInstance, LoginCr
}
@Override
public LoginCredentials load(final RunningInstance instance) throws ExecutionException {
public Optional<LoginCredentials> load(final RunningInstance instance) throws ExecutionException {
if ("windows".equals(instance.getPlatform())) {
return passwordCredentialsFromWindowsInstance.apply(instance);
return Optional.of(passwordCredentialsFromWindowsInstance.apply(instance));
} else if (instance.getKeyName() != null) {
return LoginCredentials.builder().user(getLoginAccountFor(instance)).privateKey(getPrivateKeyOrNull(instance)).build();
return Optional.of(LoginCredentials.builder().user(getLoginAccountFor(instance)).privateKey(getPrivateKeyOrNull(instance)).build());
}
return null;
return Optional.absent();
}
@VisibleForTesting

7
apis/ec2/src/main/java/org/jclouds/ec2/compute/strategy/EC2CreateNodesInGroupThenAddToSet.java
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@ -58,6 +58,7 @@ import org.jclouds.logging.Logger;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Function;
import com.google.common.base.Optional;
import com.google.common.base.Predicate;
import com.google.common.cache.LoadingCache;
import com.google.common.collect.ImmutableMap;
@ -95,7 +96,7 @@ public class EC2CreateNodesInGroupThenAddToSet implements CreateNodesInGroupThen
@VisibleForTesting
final ComputeUtils utils;
final PresentInstances presentInstances;
final LoadingCache<RunningInstance, LoginCredentials> instanceToCredentials;
final LoadingCache<RunningInstance, Optional<LoginCredentials>> instanceToCredentials;
final Map<String, Credentials> credentialStore;
@Inject
@ -105,7 +106,7 @@ public class EC2CreateNodesInGroupThenAddToSet implements CreateNodesInGroupThen
@Named(TIMEOUT_NODE_RUNNING) Predicate<AtomicReference<NodeMetadata>> nodeRunning,
CreateKeyPairAndSecurityGroupsAsNeededAndReturnRunOptions createKeyPairAndSecurityGroupsAsNeededAndReturncustomize,
PresentInstances presentInstances, Function<RunningInstance, NodeMetadata> runningInstanceToNodeMetadata,
LoadingCache<RunningInstance, LoginCredentials> instanceToCredentials,
LoadingCache<RunningInstance, Optional<LoginCredentials>> instanceToCredentials,
Map<String, Credentials> credentialStore, ComputeUtils utils) {
this.client = checkNotNull(client, "client");
this.elasticIpCache = checkNotNull(elasticIpCache, "elasticIpCache");
@ -174,7 +175,7 @@ public class EC2CreateNodesInGroupThenAddToSet implements CreateNodesInGroupThen
private void populateCredentials(Set<RunningInstance> input, TemplateOptions options) {
LoginCredentials credentials = null;
for (RunningInstance instance : input) {
credentials = instanceToCredentials.apply(instance);
credentials = instanceToCredentials.apply(instance).orNull();
if (credentials != null)
break;
}

7
apis/ec2/src/test/java/org/jclouds/ec2/compute/strategy/EC2CreateNodesInGroupThenAddToSetTest.java
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@ -57,6 +57,7 @@ import org.jclouds.ec2.services.InstanceClient;
import org.testng.Assert;
import org.testng.annotations.Test;
import com.google.common.base.Optional;
import com.google.common.cache.LoadingCache;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
@ -115,7 +116,7 @@ public class EC2CreateNodesInGroupThenAddToSetTest {
expect(instance.getId()).andReturn(instanceCreatedId).atLeastOnce();
// simulate a lazy credentials fetch
LoginCredentials creds = LoginCredentials.builder().user("foo").privateKey("bar").build();
expect(strategy.instanceToCredentials.apply(instance)).andReturn(creds);
expect(strategy.instanceToCredentials.apply(instance)).andReturn(Optional.of(creds));
expect(instance.getRegion()).andReturn(region).atLeastOnce();
expect(strategy.credentialStore.put("node#" + region + "/" + instanceCreatedId, creds)).andReturn(null);
@ -213,7 +214,7 @@ public class EC2CreateNodesInGroupThenAddToSetTest {
expect(instance.getId()).andReturn(instanceCreatedId).atLeastOnce();
// simulate a lazy credentials fetch
LoginCredentials creds = LoginCredentials.builder().user("foo").privateKey("bar").build();
expect(strategy.instanceToCredentials.apply(instance)).andReturn(creds);
expect(strategy.instanceToCredentials.apply(instance)).andReturn(Optional.of(creds));
expect(instance.getRegion()).andReturn(region).atLeastOnce();
expect(strategy.credentialStore.put("node#" + region + "/" + instanceCreatedId, creds)).andReturn(null);
@ -312,7 +313,7 @@ public class EC2CreateNodesInGroupThenAddToSetTest {
CreateKeyPairAndSecurityGroupsAsNeededAndReturnRunOptions createKeyPairAndSecurityGroupsAsNeededAndReturncustomize = createMock(CreateKeyPairAndSecurityGroupsAsNeededAndReturnRunOptions.class);
PresentInstances presentInstances = createMock(PresentInstances.class);
RunningInstanceToNodeMetadata runningInstanceToNodeMetadata = createMock(RunningInstanceToNodeMetadata.class);
LoadingCache<RunningInstance, LoginCredentials> instanceToCredentials = createMock(LoadingCache.class);
LoadingCache<RunningInstance, Optional<LoginCredentials>> instanceToCredentials = createMock(LoadingCache.class);
LoadingCache<RegionAndName, String> elasticIpCache = createMock(LoadingCache.class);
GetNodeMetadataStrategy nodeRunning = new GetNodeMetadataStrategy(){

3
providers/aws-ec2/src/main/java/org/jclouds/aws/ec2/compute/config/AWSEC2ComputeServiceDependenciesModule.java
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@ -66,6 +66,7 @@ import org.jclouds.predicates.PredicateWithResult;
import org.jclouds.predicates.RetryablePredicate;
import com.google.common.base.Function;
import com.google.common.base.Optional;
import com.google.common.base.Predicate;
import com.google.common.base.Strings;
import com.google.common.cache.CacheBuilder;
@ -89,7 +90,7 @@ public class AWSEC2ComputeServiceDependenciesModule extends EC2ComputeServiceDep
bind(TemplateBuilder.class).to(EC2TemplateBuilderImpl.class);
bind(TemplateOptions.class).to(AWSEC2TemplateOptions.class);
bind(ComputeService.class).to(AWSEC2ComputeService.class);
bind(new TypeLiteral<CacheLoader<RunningInstance, LoginCredentials>>() {
bind(new TypeLiteral<CacheLoader<RunningInstance, Optional<LoginCredentials>>>() {
}).to(CredentialsForInstance.class);
bind(new TypeLiteral<CacheLoader<RegionAndName, String>>() {
}).annotatedWith(Names.named("SECURITY")).to(CreateSecurityGroupIfNeeded.class);

3
providers/aws-ec2/src/main/java/org/jclouds/aws/ec2/compute/strategy/AWSEC2CreateNodesInGroupThenAddToSet.java
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@ -53,6 +53,7 @@ import org.jclouds.logging.Logger;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Function;
import com.google.common.base.Optional;
import com.google.common.base.Predicate;
import com.google.common.cache.LoadingCache;
import com.google.common.collect.ImmutableSet;
@ -81,7 +82,7 @@ public class AWSEC2CreateNodesInGroupThenAddToSet extends EC2CreateNodesInGroupT
CreateKeyPairPlacementAndSecurityGroupsAsNeededAndReturnRunOptions createKeyPairAndSecurityGroupsAsNeededAndReturncustomize,
PresentSpotRequestsAndInstances instancePresent,
Function<RunningInstance, NodeMetadata> runningInstanceToNodeMetadata,
LoadingCache<RunningInstance, LoginCredentials> instanceToCredentials,
LoadingCache<RunningInstance, Optional<LoginCredentials>> instanceToCredentials,
Map<String, Credentials> credentialStore, ComputeUtils utils,
SpotInstanceRequestToAWSRunningInstance spotConverter) {
super(client, elasticIpCache, nodeRunning, createKeyPairAndSecurityGroupsAsNeededAndReturncustomize,