query across all keystone services of type, as opposed to chosing the first one

apis/openstack-keystone/src/main/java/org/jclouds/openstack/keystone/v2_0/domain/Service.java

@@ -22,9 +22,12 @@ import static com.google.common.base.Objects.equal;
 import static com.google.common.base.Objects.toStringHelper;
 import static com.google.common.base.Preconditions.checkNotNull;
 
+import java.beans.ConstructorProperties;
 import java.util.Set;
 
 import com.google.common.base.Objects;
+import com.google.common.collect.ComparisonChain;
+import com.google.common.collect.ForwardingSet;
 import com.google.common.collect.ImmutableSet;
 
 /**
@@ -36,7 +39,7 @@ import com.google.common.collect.ImmutableSet;
  * @see <a href="http://docs.openstack.org/api/openstack-typeentity-service/2.0/content/Identity-Service-Concepts-e1362.html"
  *      />
  */
-public class Service implements Comparable<Service> {
+public class Service extends ForwardingSet<Endpoint> implements Comparable<Service> {
 
    public static Builder builder() {
       return new Builder();
@@ -91,16 +94,11 @@ public class Service implements Comparable<Service> {
       }
    }
    
-   protected Service() {
+   protected final String type;
-      // we want serializers like Gson to work w/o using sun.misc.Unsafe,
+   protected final String name;
-      // prohibited in GAE. This also implies fields are not final.
+   protected final Set<Endpoint> endpoints;
-      // see http://code.google.com/p/jclouds/issues/detail?id=925
-   }
-   
-   protected String type;
-   protected String name;
-   protected Set<Endpoint> endpoints = ImmutableSet.of();
 
+   @ConstructorProperties({ "type", "name", "endpoints" })
    public Service(String type, String name, Set<Endpoint> endpoints) {
       this.type = checkNotNull(type, "type");
       this.name = checkNotNull(name, "name");
@@ -155,11 +153,15 @@ public class Service implements Comparable<Service> {
 
    @Override
    public int compareTo(Service that) {
-      if (that == null)
+      return ComparisonChain.start()
-         return 1;
+                            .compare(this.type, that.type)
-      if (this == that)
+                            .compare(this.name, that.name)
-         return 0;
+                            .result();
-      return this.type.compareTo(that.type);
+   }
+
+   @Override
+   protected Set<Endpoint> delegate() {
+      return endpoints;
    }
 
 }

apis/openstack-keystone/src/main/java/org/jclouds/openstack/keystone/v2_0/suppliers/LocationIdToURIFromAccessForTypeAndVersion.java

@@ -21,6 +21,7 @@ package org.jclouds.openstack.keystone.v2_0.suppliers;
 import java.net.URI;
 import java.util.Map;
 import java.util.NoSuchElementException;
+import java.util.Set;
 
 import javax.inject.Inject;
 import javax.inject.Singleton;
@@ -35,6 +36,7 @@ import com.google.common.base.Predicate;
 import com.google.common.base.Supplier;
 import com.google.common.collect.Iterables;
 import com.google.common.collect.Maps;
+import com.google.common.collect.Sets;
 import com.google.inject.assistedinject.Assisted;
 
 @Singleton
@@ -59,9 +61,7 @@ public class LocationIdToURIFromAccessForTypeAndVersion implements Supplier<Map<
    @Override
    public Map<String, Supplier<URI>> get() {
       Access accessResponse = access.get();
-      Service service = null;
+      Set<Service> services = Sets.filter(accessResponse.getServiceCatalog(), new Predicate<Service>() {
-      try {
-         service = Iterables.find(accessResponse.getServiceCatalog(), new Predicate<Service>() {
 
          @Override
          public boolean apply(Service input) {
@@ -69,12 +69,11 @@ public class LocationIdToURIFromAccessForTypeAndVersion implements Supplier<Map<
          }
 
       });
-      } catch (NoSuchElementException e) {
+      if (services.size() == 0)
-         throw new NoSuchElementException(String.format("apiType %s not found in catalog %s", apiType, accessResponse
+         throw new NoSuchElementException(String.format("apiType %s not found in catalog %s", apiType,
-                  .getServiceCatalog()));
+                  accessResponse.getServiceCatalog()));
-      }
+
-      Map<String, Endpoint> locationIdToEndpoint = Maps.uniqueIndex(Iterables.filter(service.getEndpoints(),
+      Iterable<Endpoint> endpoints = Iterables.filter(Iterables.concat(services), new Predicate<Endpoint>() {
-               new Predicate<Endpoint>() {
 
          @Override
          public boolean apply(Endpoint input) {
@@ -84,7 +83,14 @@ public class LocationIdToURIFromAccessForTypeAndVersion implements Supplier<Map<
             return input.getVersionId().equals(apiVersion);
          }
 
-               }), endpointToLocationId);
+      });
+
+      if (Iterables.size(endpoints) == 0)
+         throw new NoSuchElementException(String.format(
+                  "no endpoints for apiType %s are of version %s, or version agnostic: %s", apiType, apiVersion,
+                  services));
+
+      Map<String, Endpoint> locationIdToEndpoint = Maps.uniqueIndex(endpoints, endpointToLocationId);
       return Maps.transformValues(locationIdToEndpoint, endpointToSupplierURI);
    }
 

apis/openstack-keystone/src/test/java/org/jclouds/openstack/keystone/v2_0/suppliers/RegionIdToURIFromAccessForTypeAndVersionTest.java

@@ -59,7 +59,6 @@ public class RegionIdToURIFromAccessForTypeAndVersionTest {
                   RegionIdToURISupplier.Factory.class));
       }
 
-      @SuppressWarnings("unused")
       @Provides
       @Singleton
       public Supplier<Access> provide() {
@@ -67,9 +66,13 @@ public class RegionIdToURIFromAccessForTypeAndVersionTest {
       }
    }).getInstance(RegionIdToURISupplier.Factory.class);
 
+   @Test(expectedExceptions = NoSuchElementException.class)
+   public void testRegionUnmatches() {
+      Maps.transformValues(factory.createForApiTypeAndVersion("compute", "1.0").get(),
+               Suppliers.<URI> supplierFunction());
+   }
+   
    public void testRegionMatches() {
-      assertEquals(Maps.transformValues(factory.createForApiTypeAndVersion("compute", "1.0").get(), Suppliers
-               .<URI> supplierFunction()), ImmutableMap.of());
       assertEquals(Maps.transformValues(factory.createForApiTypeAndVersion("compute", "1.1").get(), Suppliers
                .<URI> supplierFunction()), ImmutableMap.of("az-1.region-a.geo-1", URI
                .create("https://az-1.region-a.geo-1.compute.hpcloudsvc.com/v1.1/3456"), "az-2.region-a.geo-1", URI
@@ -89,7 +92,6 @@ public class RegionIdToURIFromAccessForTypeAndVersionTest {
                   RegionIdToURISupplier.Factory.class));
       }
 
-      @SuppressWarnings("unused")
       @Provides
       @Singleton
       public Supplier<Access> provide() {

apis/openstack-keystone/src/test/java/org/jclouds/openstack/keystone/v2_0/suppliers/ZoneIdToURIFromAccessForTypeAndVersionTest.java

@@ -58,7 +58,6 @@ public class ZoneIdToURIFromAccessForTypeAndVersionTest {
                   ZoneIdToURIFromAccessForTypeAndVersion.class).build(ZoneIdToURISupplier.Factory.class));
       }
 
-      @SuppressWarnings("unused")
       @Provides
       @Singleton
       public Supplier<Access> provide() {
@@ -66,9 +65,14 @@ public class ZoneIdToURIFromAccessForTypeAndVersionTest {
       }
    }).getInstance(ZoneIdToURISupplier.Factory.class);
 
+
+   @Test(expectedExceptions = NoSuchElementException.class)
+   public void testZoneUnmatches() {
+      Maps.transformValues(factory.createForApiTypeAndVersion("compute", "1.0").get(),
+               Suppliers.<URI> supplierFunction());
+   }
+  
    public void testZoneMatches() {
-      assertEquals(Maps.transformValues(factory.createForApiTypeAndVersion("compute", "1.0").get(), Suppliers
-            .<URI> supplierFunction()), ImmutableMap.of());
       assertEquals(Maps.transformValues(factory.createForApiTypeAndVersion("compute", "1.1").get(), Suppliers
             .<URI> supplierFunction()), ImmutableMap.of("az-1.region-a.geo-1", URI.create("https://az-1.region-a.geo-1.compute.hpcloudsvc.com/v1.1/3456"),
                                                         "az-2.region-a.geo-1", URI.create("https://az-2.region-a.geo-1.compute.hpcloudsvc.com/v1.1/3456"),
@@ -86,7 +90,6 @@ public class ZoneIdToURIFromAccessForTypeAndVersionTest {
                   ZoneIdToURIFromAccessForTypeAndVersion.class).build(ZoneIdToURISupplier.Factory.class));
       }
 
-      @SuppressWarnings("unused")
       @Provides
       @Singleton
       public Supplier<Access> provide() {