Merge Keystone optional admin API provider with optional extension provider

apis/openstack-keystone/src/main/java/org/jclouds/openstack/keystone/v2_0/config/KeystoneRestClientModule.java

@@ -43,7 +43,6 @@ import org.jclouds.openstack.keystone.v2_0.features.TokenApi;
 import org.jclouds.openstack.keystone.v2_0.features.TokenAsyncApi;
 import org.jclouds.openstack.keystone.v2_0.features.UserApi;
 import org.jclouds.openstack.keystone.v2_0.features.UserAsyncApi;
-import org.jclouds.openstack.keystone.v2_0.functions.PresentWhenAdminURLExistsForIdentityService;
 import org.jclouds.openstack.keystone.v2_0.handlers.KeystoneErrorHandler;
 import org.jclouds.openstack.keystone.v2_0.suppliers.RegionIdToAdminURIFromAccessForTypeAndVersion;
 import org.jclouds.openstack.keystone.v2_0.suppliers.RegionIdToAdminURISupplier;
@@ -101,7 +100,6 @@ public class KeystoneRestClientModule<S extends KeystoneApi, A extends KeystoneA
 
       @Override
       protected void configure() {
-         bind(ImplicitOptionalConverter.class).to(PresentWhenAdminURLExistsForIdentityService.class);
          install(new FactoryModuleBuilder().implement(RegionIdToAdminURISupplier.class,
                   RegionIdToAdminURIFromAccessForTypeAndVersion.class).build(RegionIdToAdminURISupplier.Factory.class));
       }

apis/openstack-keystone/src/main/java/org/jclouds/openstack/keystone/v2_0/functions/PresentWhenAdminURLExistsForIdentityService.java

@@ -1,46 +0,0 @@
-/**
- * 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.keystone.v2_0.functions;
-
-import javax.inject.Singleton;
-
-import org.jclouds.internal.ClassMethodArgsAndReturnVal;
-import org.jclouds.rest.functions.ImplicitOptionalConverter;
-
-import com.google.common.base.Optional;
-
-/**
- * 
- * @author Adrian Cole
- * 
- */
-@Singleton
-public class PresentWhenAdminURLExistsForIdentityService implements ImplicitOptionalConverter {
-
-   @Override
-   public Optional<Object> apply(ClassMethodArgsAndReturnVal input) {
-      //TODO: log and return absent when the admin url for identity service isn't available
-      return Optional.of(input.getReturnVal());
-   }
-
-   public String toString() {
-      return "presentWhenAdminURLExistsForIdentityService()";
-   }
-
-}

apis/openstack-keystone/src/main/java/org/jclouds/openstack/v2_0/functions/PresentWhenExtensionAnnotationNamespaceEqualsAnyNamespaceInExtensionsSet.java

@@ -19,7 +19,6 @@
 package org.jclouds.openstack.v2_0.functions;
 
 import static com.google.common.base.Preconditions.checkNotNull;
-import static com.google.common.base.Preconditions.checkState;
 
 import java.net.URI;
 import java.util.Set;
@@ -71,11 +70,14 @@ public class PresentWhenExtensionAnnotationNamespaceEqualsAnyNamespaceInExtensio
 	        if (Iterables.any(extensions.getUnchecked(checkNotNull(input.getArgs()[0], "arg[0] in %s", input).toString()),
 	              ExtensionPredicates.namespaceOrAliasEquals(namespace, aliases.get(namespace))))
 	           return Optional.of(input.getReturnVal());
+         } else {
+            throw new RuntimeException(String.format("expecting zero or one args %s", input));
+         }
+         return Optional.absent();
       } else {
-          throw new RuntimeException(String.format("expecting zero or one args %s", input));
+         // No extension annotation, should check whether to return absent
+	     return Optional.of(input.getReturnVal());
       }
-      }
-      return Optional.absent();
    }
 
    @Override