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Posted to commits@jclouds.apache.org by ad...@apache.org on 2014/11/16 22:39:31 UTC

[1/2] jclouds git commit: JCLOUDS-774 cleanup derived location suppliers and backfill test for inconsistent region and zone mappings.

Repository: jclouds
Updated Branches:
  refs/heads/master 90a6bb19f -> 6040f749b


JCLOUDS-774 cleanup derived location suppliers and backfill test for inconsistent region and zone mappings.


Project: http://git-wip-us.apache.org/repos/asf/jclouds/repo
Commit: http://git-wip-us.apache.org/repos/asf/jclouds/commit/d8cb6958
Tree: http://git-wip-us.apache.org/repos/asf/jclouds/tree/d8cb6958
Diff: http://git-wip-us.apache.org/repos/asf/jclouds/diff/d8cb6958

Branch: refs/heads/master
Commit: d8cb6958f0b531435de484279aeca9edb5d12016
Parents: 90a6bb1
Author: Adrian Cole <ad...@gmail.com>
Authored: Sun Nov 16 10:27:50 2014 -0800
Committer: Adrian Cole <ad...@gmail.com>
Committed: Sun Nov 16 13:38:48 2014 -0800

----------------------------------------------------------------------
 .../RegionIdsFromRegionIdToURIKeySet.java       | 22 +++----
 .../ZoneIdToURIFromJoinOnRegionIdToURI.java     | 29 ++++----
 .../ZoneIdsFromRegionIdToZoneIdsValues.java     | 27 +++-----
 .../derived/ZoneIdsFromZoneIdToURIKeySet.java   | 17 ++---
 .../ZoneIdToURIFromJoinOnRegionIdToURITest.java | 69 ++++++++++++++++++++
 5 files changed, 110 insertions(+), 54 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/jclouds/blob/d8cb6958/core/src/main/java/org/jclouds/location/suppliers/derived/RegionIdsFromRegionIdToURIKeySet.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/org/jclouds/location/suppliers/derived/RegionIdsFromRegionIdToURIKeySet.java b/core/src/main/java/org/jclouds/location/suppliers/derived/RegionIdsFromRegionIdToURIKeySet.java
index eb5de4a..75aff2c 100644
--- a/core/src/main/java/org/jclouds/location/suppliers/derived/RegionIdsFromRegionIdToURIKeySet.java
+++ b/core/src/main/java/org/jclouds/location/suppliers/derived/RegionIdsFromRegionIdToURIKeySet.java
@@ -16,39 +16,35 @@
  */
 package org.jclouds.location.suppliers.derived;
 
+import static com.google.common.base.Throwables.propagate;
+
 import java.lang.reflect.UndeclaredThrowableException;
 import java.net.URI;
 import java.util.Map;
 import java.util.Set;
 
-import javax.inject.Singleton;
-
 import org.jclouds.location.Region;
 import org.jclouds.location.suppliers.RegionIdsSupplier;
 
 import com.google.common.base.Supplier;
-import com.google.common.base.Throwables;
 import com.google.inject.Inject;
 
-/**
- * as opposed to via properties, lets look up regions via api, as they are more likely to change
- */
-@Singleton
-public class RegionIdsFromRegionIdToURIKeySet implements RegionIdsSupplier {
+/** As opposed to via properties, lets look up regions via api, as they are more likely to change. */
+public final class RegionIdsFromRegionIdToURIKeySet implements RegionIdsSupplier {
 
-   private final Supplier<Map<String, Supplier<URI>>> regionIdToURISupplier;
+   private final Supplier<Map<String, Supplier<URI>>> regionIdToURIs;
 
    @Inject
-   protected RegionIdsFromRegionIdToURIKeySet(@Region Supplier<Map<String, Supplier<URI>>> regionIdToURISupplier) {
-      this.regionIdToURISupplier = regionIdToURISupplier;
+   RegionIdsFromRegionIdToURIKeySet(@Region Supplier<Map<String, Supplier<URI>>> regionIdToURIs) {
+      this.regionIdToURIs = regionIdToURIs;
    }
 
    @Override
    public Set<String> get() {
       try {
-         return regionIdToURISupplier.get().keySet();
+         return regionIdToURIs.get().keySet();
       } catch (UndeclaredThrowableException e) {
-         throw Throwables.propagate(e.getCause());
+         throw propagate(e.getCause());
       }
    }
 }

http://git-wip-us.apache.org/repos/asf/jclouds/blob/d8cb6958/core/src/main/java/org/jclouds/location/suppliers/derived/ZoneIdToURIFromJoinOnRegionIdToURI.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/org/jclouds/location/suppliers/derived/ZoneIdToURIFromJoinOnRegionIdToURI.java b/core/src/main/java/org/jclouds/location/suppliers/derived/ZoneIdToURIFromJoinOnRegionIdToURI.java
index ee5115e..f630cd5 100644
--- a/core/src/main/java/org/jclouds/location/suppliers/derived/ZoneIdToURIFromJoinOnRegionIdToURI.java
+++ b/core/src/main/java/org/jclouds/location/suppliers/derived/ZoneIdToURIFromJoinOnRegionIdToURI.java
@@ -16,13 +16,14 @@
  */
 package org.jclouds.location.suppliers.derived;
 
+import static com.google.common.base.Preconditions.checkState;
+
 import java.net.URI;
 import java.util.Map;
 import java.util.Map.Entry;
 import java.util.Set;
 
 import javax.inject.Inject;
-import javax.inject.Singleton;
 
 import org.jclouds.location.Region;
 import org.jclouds.location.Zone;
@@ -32,28 +33,30 @@ import com.google.common.base.Supplier;
 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.ImmutableMap.Builder;
 
-@Singleton
-public class ZoneIdToURIFromJoinOnRegionIdToURI implements ZoneIdToURISupplier {
+public final class ZoneIdToURIFromJoinOnRegionIdToURI implements ZoneIdToURISupplier {
 
-   private final Supplier<Map<String, Supplier<URI>>> regionIdToURISupplier;
-   private final Supplier<Map<String, Supplier<Set<String>>>> regionIdToZoneIdsSupplier;
+   private final Supplier<Map<String, Supplier<URI>>> regionIdToURIs;
+   private final Supplier<Map<String, Supplier<Set<String>>>> regionIdToZoneIds;
 
    @Inject
-   protected ZoneIdToURIFromJoinOnRegionIdToURI(@Region Supplier<Map<String, Supplier<URI>>> regionIdToURISupplier,
-         @Zone Supplier<Map<String, Supplier<Set<String>>>> regionIdToZoneIdsSupplier) {
-      this.regionIdToURISupplier = regionIdToURISupplier;
-      this.regionIdToZoneIdsSupplier = regionIdToZoneIdsSupplier;
+   ZoneIdToURIFromJoinOnRegionIdToURI(@Region Supplier<Map<String, Supplier<URI>>> regionIdToURIs,
+         @Zone Supplier<Map<String, Supplier<Set<String>>>> regionIdToZoneIds) {
+      this.regionIdToURIs = regionIdToURIs;
+      this.regionIdToZoneIds = regionIdToZoneIds;
    }
 
    @Override
    public Map<String, Supplier<URI>> get() {
-      Builder<String, Supplier<URI>> builder = ImmutableMap.<String, Supplier<URI>> builder();
-      for (Entry<String, Supplier<URI>> regionToURI : regionIdToURISupplier.get().entrySet()) {
-         for (String zone : regionIdToZoneIdsSupplier.get().get(regionToURI.getKey()).get()) {
+      Map<String, Supplier<Set<String>>> regionIdToZoneIds = this.regionIdToZoneIds.get();
+      Builder<String, Supplier<URI>> builder = ImmutableMap.builder();
+      for (Entry<String, Supplier<URI>> regionToURI : regionIdToURIs.get().entrySet()) {
+         Supplier<Set<String>> zoneIds = regionIdToZoneIds.get(regionToURI.getKey());
+         checkState(zoneIds != null, "region %s is not in the configured region to zone mappings: %s",
+               regionToURI.getKey(), regionIdToZoneIds);
+         for (String zone : zoneIds.get()) {
             builder.put(zone, regionToURI.getValue());
          }
       }
       return builder.build();
    }
-
 }

http://git-wip-us.apache.org/repos/asf/jclouds/blob/d8cb6958/core/src/main/java/org/jclouds/location/suppliers/derived/ZoneIdsFromRegionIdToZoneIdsValues.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/org/jclouds/location/suppliers/derived/ZoneIdsFromRegionIdToZoneIdsValues.java b/core/src/main/java/org/jclouds/location/suppliers/derived/ZoneIdsFromRegionIdToZoneIdsValues.java
index 25764af..cd54ca8 100644
--- a/core/src/main/java/org/jclouds/location/suppliers/derived/ZoneIdsFromRegionIdToZoneIdsValues.java
+++ b/core/src/main/java/org/jclouds/location/suppliers/derived/ZoneIdsFromRegionIdToZoneIdsValues.java
@@ -16,40 +16,33 @@
  */
 package org.jclouds.location.suppliers.derived;
 
-import java.util.Collection;
 import java.util.Map;
 import java.util.Set;
 
 import javax.inject.Inject;
-import javax.inject.Singleton;
 
 import org.jclouds.location.Zone;
 import org.jclouds.location.suppliers.ZoneIdsSupplier;
 
 import com.google.common.base.Supplier;
-import com.google.common.base.Suppliers;
 import com.google.common.collect.ImmutableSet;
-import com.google.common.collect.Iterables;
 
-/**
- * as opposed to via properties, lets look up zones via api, as they are more likely to change
- */
-@Singleton
-public class ZoneIdsFromRegionIdToZoneIdsValues implements ZoneIdsSupplier {
+/** As opposed to via properties, lets look up zones via api, as they are more likely to change. */
+public final class ZoneIdsFromRegionIdToZoneIdsValues implements ZoneIdsSupplier {
 
-   private final Supplier<Map<String, Supplier<Set<String>>>> regionIdToZoneIdsSupplier;
+   private final Supplier<Map<String, Supplier<Set<String>>>> regionIdToZoneIds;
 
    @Inject
-   protected ZoneIdsFromRegionIdToZoneIdsValues(
-            @Zone Supplier<Map<String, Supplier<Set<String>>>> regionIdToZoneIdsSupplier) {
-      this.regionIdToZoneIdsSupplier = regionIdToZoneIdsSupplier;
+   ZoneIdsFromRegionIdToZoneIdsValues(@Zone Supplier<Map<String, Supplier<Set<String>>>> regionIdToZoneIds) {
+      this.regionIdToZoneIds = regionIdToZoneIds;
    }
 
    @Override
    public Set<String> get() {
-      Collection<Supplier<Set<String>>> zones = regionIdToZoneIdsSupplier.get().values();
-      return ImmutableSet.copyOf(Iterables.concat(Iterables.transform(zones, Suppliers
-               .<Set<String>> supplierFunction())));
+      ImmutableSet.Builder<String> result = ImmutableSet.builder();
+      for (Supplier<Set<String>> zone : regionIdToZoneIds.get().values()) {
+         result.addAll(zone.get());
+      }
+      return result.build();
    }
-
 }

http://git-wip-us.apache.org/repos/asf/jclouds/blob/d8cb6958/core/src/main/java/org/jclouds/location/suppliers/derived/ZoneIdsFromZoneIdToURIKeySet.java
----------------------------------------------------------------------
diff --git a/core/src/main/java/org/jclouds/location/suppliers/derived/ZoneIdsFromZoneIdToURIKeySet.java b/core/src/main/java/org/jclouds/location/suppliers/derived/ZoneIdsFromZoneIdToURIKeySet.java
index a60f4c2..ceaf7fb 100644
--- a/core/src/main/java/org/jclouds/location/suppliers/derived/ZoneIdsFromZoneIdToURIKeySet.java
+++ b/core/src/main/java/org/jclouds/location/suppliers/derived/ZoneIdsFromZoneIdToURIKeySet.java
@@ -20,29 +20,24 @@ import java.net.URI;
 import java.util.Map;
 import java.util.Set;
 
-import javax.inject.Singleton;
-
 import org.jclouds.location.Zone;
 import org.jclouds.location.suppliers.ZoneIdsSupplier;
 
 import com.google.common.base.Supplier;
 import com.google.inject.Inject;
 
-/**
- * as opposed to via properties, lets look up zones via api, as they are more likely to change
- */
-@Singleton
-public class ZoneIdsFromZoneIdToURIKeySet implements ZoneIdsSupplier {
+/** As opposed to via properties, lets look up zones via api, as they are more likely to change. */
+public final class ZoneIdsFromZoneIdToURIKeySet implements ZoneIdsSupplier {
 
-   private final Supplier<Map<String, Supplier<URI>>> zoneIdToURISupplier;
+   private final Supplier<Map<String, Supplier<URI>>> zoneIdToURIs;
 
    @Inject
-   protected ZoneIdsFromZoneIdToURIKeySet(@Zone Supplier<Map<String, Supplier<URI>>> zoneIdToURISupplier) {
-      this.zoneIdToURISupplier = zoneIdToURISupplier;
+   ZoneIdsFromZoneIdToURIKeySet(@Zone Supplier<Map<String, Supplier<URI>>> zoneIdToURIs) {
+      this.zoneIdToURIs = zoneIdToURIs;
    }
 
    @Override
    public Set<String> get() {
-      return zoneIdToURISupplier.get().keySet();
+      return zoneIdToURIs.get().keySet();
    }
 }

http://git-wip-us.apache.org/repos/asf/jclouds/blob/d8cb6958/core/src/test/java/org/jclouds/location/suppliers/derived/ZoneIdToURIFromJoinOnRegionIdToURITest.java
----------------------------------------------------------------------
diff --git a/core/src/test/java/org/jclouds/location/suppliers/derived/ZoneIdToURIFromJoinOnRegionIdToURITest.java b/core/src/test/java/org/jclouds/location/suppliers/derived/ZoneIdToURIFromJoinOnRegionIdToURITest.java
new file mode 100644
index 0000000..6407ee7
--- /dev/null
+++ b/core/src/test/java/org/jclouds/location/suppliers/derived/ZoneIdToURIFromJoinOnRegionIdToURITest.java
@@ -0,0 +1,69 @@
+/*
+ * 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.location.suppliers.derived;
+
+import static org.testng.Assert.assertEquals;
+
+import java.net.URI;
+import java.util.Map;
+import java.util.Set;
+
+import org.testng.annotations.Test;
+
+import com.google.common.base.Supplier;
+import com.google.common.base.Suppliers;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Maps;
+
+@Test
+public class ZoneIdToURIFromJoinOnRegionIdToURITest {
+
+   public void zoneToRegionMappingsValid() {
+      Map<String, Supplier<URI>> regionIdToURIs = Maps.newLinkedHashMap();
+      regionIdToURIs.put("us-east-1", Suppliers.ofInstance(URI.create("ec2.us-east-1.amazonaws.com")));
+      regionIdToURIs.put("eu-central-1", Suppliers.ofInstance(URI.create("ec2.eu-central-1.amazonaws.com")));
+      Map<String, Supplier<Set<String>>> regionIdToZoneIds = Maps.newLinkedHashMap();
+      regionIdToZoneIds.put("us-east-1", supplyZoneIds("us-east-1a", "us-east-1b"));
+      regionIdToZoneIds.put("eu-central-1", supplyZoneIds("eu-central-1a"));
+
+      Map<String, Supplier<URI>> result = new ZoneIdToURIFromJoinOnRegionIdToURI(Suppliers.ofInstance(regionIdToURIs),
+            Suppliers.ofInstance(regionIdToZoneIds)).get();
+
+      assertEquals(result.size(), 3);
+      assertEquals(result.get("us-east-1a"), regionIdToURIs.get("us-east-1"));
+      assertEquals(result.get("us-east-1b"), regionIdToURIs.get("us-east-1"));
+      assertEquals(result.get("eu-central-1a"), regionIdToURIs.get("eu-central-1"));
+   }
+
+   @Test(expectedExceptions = IllegalStateException.class,
+         expectedExceptionsMessageRegExp = "region eu-central-1 is not in the configured region to zone mappings: .*")
+   public void zoneToRegionMappingsInconsistentOnKeys() {
+      Map<String, Supplier<URI>> regionIdToURIs = Maps.newLinkedHashMap();
+      regionIdToURIs.put("us-east-1", Suppliers.ofInstance(URI.create("ec2.us-east-1.amazonaws.com")));
+      regionIdToURIs.put("eu-central-1", Suppliers.ofInstance(URI.create("ec2.eu-central-1.amazonaws.com")));
+      Map<String, Supplier<Set<String>>> regionIdToZoneIds = Maps.newLinkedHashMap();
+      regionIdToZoneIds.put("us-east-1", supplyZoneIds("us-east-1a", "us-east-1b"));
+      // missing regionIdToZoneIds mapping for eu-central-1
+
+      new ZoneIdToURIFromJoinOnRegionIdToURI(Suppliers.ofInstance(regionIdToURIs),
+            Suppliers.ofInstance(regionIdToZoneIds)).get();
+   }
+
+   private static Supplier<Set<String>> supplyZoneIds(String... zoneIds) {
+      return Suppliers.<Set<String>>ofInstance(ImmutableSet.copyOf(zoneIds));
+   }
+}


[2/2] jclouds git commit: Revert 428b2bd2ea2d73354e15ffad52516105b15576cd as this hides inconsistency between regions and zones.

Posted by ad...@apache.org.
Revert 428b2bd2ea2d73354e15ffad52516105b15576cd as this hides inconsistency between regions and zones.


Project: http://git-wip-us.apache.org/repos/asf/jclouds/repo
Commit: http://git-wip-us.apache.org/repos/asf/jclouds/commit/6040f749
Tree: http://git-wip-us.apache.org/repos/asf/jclouds/tree/6040f749
Diff: http://git-wip-us.apache.org/repos/asf/jclouds/diff/6040f749

Branch: refs/heads/master
Commit: 6040f749bd8acd316024150b140b9af25fb6bb8f
Parents: d8cb695
Author: Adrian Cole <ad...@gmail.com>
Authored: Sun Nov 16 12:26:35 2014 -0800
Committer: Adrian Cole <ad...@gmail.com>
Committed: Sun Nov 16 13:39:02 2014 -0800

----------------------------------------------------------------------
 apis/ec2/pom.xml                                |  12 ++
 .../DescribeAvailabilityZonesInRegion.java      |  57 ++------
 .../ec2/internal/BaseEC2ApiMockTest.java        | 133 +++++++++++++++++++
 ...scribeAvailabilityZonesInRegionMockTest.java |  75 +++++++++++
 .../DescribeAvailabilityZonesInRegionTest.java  | 122 -----------------
 5 files changed, 232 insertions(+), 167 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/jclouds/blob/6040f749/apis/ec2/pom.xml
----------------------------------------------------------------------
diff --git a/apis/ec2/pom.xml b/apis/ec2/pom.xml
index 2d39916..4fe3493 100644
--- a/apis/ec2/pom.xml
+++ b/apis/ec2/pom.xml
@@ -91,6 +91,18 @@
       <version>${project.version}</version>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>com.squareup.okhttp</groupId>
+      <artifactId>mockwebserver</artifactId>
+      <scope>test</scope>
+      <exclusions>
+        <!-- Already provided by jclouds-sshj -->
+        <exclusion>
+          <groupId>org.bouncycastle</groupId>
+          <artifactId>bcprov-jdk15on</artifactId>
+        </exclusion>
+      </exclusions>
+    </dependency>
   </dependencies>
   <build>
     <plugins>

http://git-wip-us.apache.org/repos/asf/jclouds/blob/6040f749/apis/ec2/src/main/java/org/jclouds/ec2/suppliers/DescribeAvailabilityZonesInRegion.java
----------------------------------------------------------------------
diff --git a/apis/ec2/src/main/java/org/jclouds/ec2/suppliers/DescribeAvailabilityZonesInRegion.java b/apis/ec2/src/main/java/org/jclouds/ec2/suppliers/DescribeAvailabilityZonesInRegion.java
index 5a2b846..67cb55d 100644
--- a/apis/ec2/src/main/java/org/jclouds/ec2/suppliers/DescribeAvailabilityZonesInRegion.java
+++ b/apis/ec2/src/main/java/org/jclouds/ec2/suppliers/DescribeAvailabilityZonesInRegion.java
@@ -19,74 +19,41 @@ package org.jclouds.ec2.suppliers;
 import java.util.Map;
 import java.util.Set;
 
-import javax.annotation.Resource;
 import javax.inject.Inject;
-import javax.inject.Singleton;
 
 import org.jclouds.ec2.EC2Api;
 import org.jclouds.ec2.domain.AvailabilityZoneInfo;
 import org.jclouds.ec2.features.AvailabilityZoneAndRegionApi;
-import org.jclouds.http.HttpResponseException;
 import org.jclouds.location.Region;
 import org.jclouds.location.suppliers.RegionIdToZoneIdsSupplier;
-import org.jclouds.logging.Logger;
-import org.jclouds.util.Suppliers2;
 
-import com.google.common.base.Function;
 import com.google.common.base.Supplier;
+import com.google.common.base.Suppliers;
 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.ImmutableMap.Builder;
 import com.google.common.collect.ImmutableSet;
-import com.google.common.collect.Iterables;
-import com.google.common.collect.Maps;
 
-@Singleton
-public class DescribeAvailabilityZonesInRegion implements RegionIdToZoneIdsSupplier {
-   @Resource
-   protected Logger logger = Logger.NULL;
-
-   private final AvailabilityZoneAndRegionApi client;
+public final class DescribeAvailabilityZonesInRegion implements RegionIdToZoneIdsSupplier {
+   private final EC2Api api;
    private final Supplier<Set<String>> regions;
 
    @Inject
-   public DescribeAvailabilityZonesInRegion(EC2Api client, @Region Supplier<Set<String>> regions) {
-      this.client = client.getAvailabilityZoneAndRegionApi().get();
+   DescribeAvailabilityZonesInRegion(EC2Api api, @Region Supplier<Set<String>> regions) {
+      this.api = api;
       this.regions = regions;
    }
 
    @Override
    public Map<String, Supplier<Set<String>>> get() {
-      Builder<String, Set<String>> map = ImmutableMap.builder();
-      HttpResponseException exception = null;
-      // TODO: this should be parallel
+      AvailabilityZoneAndRegionApi zoneApi = api.getAvailabilityZoneAndRegionApi().get();
+      Builder<String, Supplier<Set<String>>> map = ImmutableMap.builder();
       for (String region : regions.get()) {
-         try {
-            ImmutableSet<String> zones = ImmutableSet.copyOf(Iterables.transform(client
-                     .describeAvailabilityZonesInRegion(region), new Function<AvailabilityZoneInfo, String>() {
-
-               @Override
-               public String apply(AvailabilityZoneInfo arg0) {
-                  return arg0.getZone();
-               }
-
-            }));
-            if (!zones.isEmpty())
-               map.put(region, zones);
-         } catch (HttpResponseException e) {
-            // TODO: this should be in retry handler, not here.
-            if (e.getMessage().contains("Unable to tunnel through proxy")) {
-               exception = e;
-               logger.error(e, "Could not describe availability zones in Region: %s", region);
-            } else {
-               throw e;
-            }
+         ImmutableSet.Builder<String> zoneBuilder = ImmutableSet.builder();
+         for (AvailabilityZoneInfo zone : zoneApi.describeAvailabilityZonesInRegion(region)) {
+            zoneBuilder.add(zone.getZone());
          }
+         map.put(region, Suppliers.<Set<String>>ofInstance(zoneBuilder.build()));
       }
-      ImmutableMap<String, Set<String>> result = map.build();
-      if (result.isEmpty() && exception != null) {
-         throw exception;
-      }
-      return Maps.transformValues(result, Suppliers2.<Set<String>> ofInstanceFunction());
+      return map.build();
    }
-
 }

http://git-wip-us.apache.org/repos/asf/jclouds/blob/6040f749/apis/ec2/src/test/java/org/jclouds/ec2/internal/BaseEC2ApiMockTest.java
----------------------------------------------------------------------
diff --git a/apis/ec2/src/test/java/org/jclouds/ec2/internal/BaseEC2ApiMockTest.java b/apis/ec2/src/test/java/org/jclouds/ec2/internal/BaseEC2ApiMockTest.java
new file mode 100644
index 0000000..7834ba0
--- /dev/null
+++ b/apis/ec2/src/test/java/org/jclouds/ec2/internal/BaseEC2ApiMockTest.java
@@ -0,0 +1,133 @@
+/*
+ * 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.internal;
+
+import static com.google.common.base.Throwables.propagate;
+import static com.google.common.net.HttpHeaders.CONTENT_TYPE;
+import static com.google.common.util.concurrent.MoreExecutors.sameThreadExecutor;
+import static javax.ws.rs.core.MediaType.APPLICATION_XML;
+import static org.jclouds.util.Strings2.toStringAndClose;
+import static org.testng.Assert.assertEquals;
+
+import java.io.IOException;
+import java.util.Map;
+import java.util.Properties;
+import java.util.Set;
+
+import org.jclouds.Constants;
+import org.jclouds.ContextBuilder;
+import org.jclouds.concurrent.config.ExecutorServiceModule;
+import org.jclouds.ec2.EC2Api;
+import org.jclouds.ec2.EC2ApiMetadata;
+import org.testng.annotations.AfterMethod;
+import org.testng.annotations.BeforeMethod;
+
+import com.google.common.base.Charsets;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Maps;
+import com.google.inject.Module;
+import com.squareup.okhttp.mockwebserver.MockResponse;
+import com.squareup.okhttp.mockwebserver.MockWebServer;
+import com.squareup.okhttp.mockwebserver.RecordedRequest;
+
+/**
+ * Tests need to run {@code singleThreaded = true) as otherwise tests will clash on the regionToServers field.
+ * Sharing the regionToServers field means less code to write.
+ */
+public class BaseEC2ApiMockTest {
+   protected static final String DEFAULT_REGION = "us-east-1";
+
+   // Example keys from http://docs.aws.amazon.com/general/latest/gr/signature-version-2.html
+   private static final String ACCESS_KEY = "AKIAIOSFODNN7EXAMPLE";
+   private static final String SECRET_KEY = "wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY";
+
+   private Map<String, MockWebServer> regionToServers = Maps.newLinkedHashMap();
+
+   protected EC2Api api() {
+      return builder().buildApi(EC2Api.class);
+   }
+
+   protected ContextBuilder builder() {
+      Properties overrides = new Properties();
+      overrides.setProperty(Constants.PROPERTY_MAX_RETRIES, "1");
+      return ContextBuilder.newBuilder(new EC2ApiMetadata()).credentials(ACCESS_KEY, SECRET_KEY)
+            .endpoint("http://localhost:" + regionToServers.get(DEFAULT_REGION).getPort()).overrides(overrides)
+            .modules(modules);
+   }
+
+   private final Set<Module> modules = ImmutableSet.<Module>of(new ExecutorServiceModule(sameThreadExecutor()));
+
+   @BeforeMethod
+   public void start() throws IOException {
+      MockWebServer server = new MockWebServer();
+      server.play();
+      regionToServers.put(DEFAULT_REGION, server);
+   }
+
+   @AfterMethod(alwaysRun = true)
+   public void stop() throws IOException {
+      for (MockWebServer server : regionToServers.values()) {
+         server.shutdown();
+      }
+   }
+
+   protected void enqueue(String region, MockResponse response) {
+      regionToServers.get(region).enqueue(response);
+   }
+
+   protected void enqueueRegions(String... regions) throws IOException {
+      StringBuilder describeRegionsResponse = new StringBuilder();
+      describeRegionsResponse.append("<DescribeRegionsResponse>");
+      for (String region : regions) {
+         describeRegionsResponse.append("<item>");
+         describeRegionsResponse.append("<regionName>").append(region).append("</regionName>");
+         if (!regionToServers.containsKey(region)) {
+            MockWebServer server = new MockWebServer();
+            server.play();
+            regionToServers.put(region, server);
+         }
+         String regionEndpoint = "http://localhost:" + regionToServers.get(region).getPort();
+         describeRegionsResponse.append("<regionEndpoint>").append(regionEndpoint).append("</regionEndpoint>");
+         describeRegionsResponse.append("</item>");
+      }
+      describeRegionsResponse.append("</DescribeRegionsResponse>");
+      enqueue(DEFAULT_REGION,
+            new MockResponse().addHeader(CONTENT_TYPE, APPLICATION_XML).setBody(describeRegionsResponse.toString()));
+   }
+
+   protected void enqueueXml(String region, String resource) {
+      enqueue(region,
+            new MockResponse().addHeader(CONTENT_TYPE, APPLICATION_XML).setBody(stringFromResource(resource)));
+   }
+
+   protected String stringFromResource(String resourceName) {
+      try {
+         return toStringAndClose(getClass().getResourceAsStream(resourceName));
+      } catch (IOException e) {
+         throw propagate(e);
+      }
+   }
+
+   /** Stripping out authorization, ensures the following post params were sent. */
+   protected RecordedRequest assertPosted(String region, String postParams) throws InterruptedException {
+      RecordedRequest request = regionToServers.get(region).takeRequest();
+      assertEquals(request.getMethod(), "POST");
+      assertEquals(request.getPath(), "/");
+      assertEquals(new String(request.getBody(), Charsets.UTF_8).replaceAll("&Signature.*", ""), postParams);
+      return request;
+   }
+}

http://git-wip-us.apache.org/repos/asf/jclouds/blob/6040f749/apis/ec2/src/test/java/org/jclouds/ec2/suppliers/DescribeAvailabilityZonesInRegionMockTest.java
----------------------------------------------------------------------
diff --git a/apis/ec2/src/test/java/org/jclouds/ec2/suppliers/DescribeAvailabilityZonesInRegionMockTest.java b/apis/ec2/src/test/java/org/jclouds/ec2/suppliers/DescribeAvailabilityZonesInRegionMockTest.java
new file mode 100644
index 0000000..1170224
--- /dev/null
+++ b/apis/ec2/src/test/java/org/jclouds/ec2/suppliers/DescribeAvailabilityZonesInRegionMockTest.java
@@ -0,0 +1,75 @@
+/*
+ * 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.suppliers;
+
+import static org.testng.Assert.assertEquals;
+import static org.testng.Assert.fail;
+
+import java.util.Map;
+import java.util.Set;
+
+import org.jclouds.ec2.internal.BaseEC2ApiMockTest;
+import org.jclouds.rest.AuthorizationException;
+import org.testng.annotations.Test;
+
+import com.google.common.base.Supplier;
+import com.google.common.base.Suppliers;
+import com.google.common.collect.ImmutableSet;
+import com.squareup.okhttp.mockwebserver.MockResponse;
+
+@Test(groups = "unit", testName = "DescribeAvailabilityZonesInRegionMockTest", singleThreaded = true)
+public class DescribeAvailabilityZonesInRegionMockTest extends BaseEC2ApiMockTest {
+
+   public void onlySendsRequestsToConfiguredRegions() throws Exception {
+      enqueueRegions("us-east-1");
+      enqueueXml("us-east-1", "/availabilityZones.xml");
+
+      Map<String, Supplier<Set<String>>> result = new DescribeAvailabilityZonesInRegion(api(),
+            supplyRegionIds("us-east-1")).get();
+
+      assertEquals(result.size(), 1);
+      assertEquals(result.get("us-east-1").get(),
+            ImmutableSet.of("us-east-1a", "us-east-1b", "us-east-1c", "us-east-1d"));
+
+      assertPosted("us-east-1", "Action=DescribeRegions");
+      assertPosted("us-east-1", "Action=DescribeAvailabilityZones");
+   }
+
+   public void failsOnAuthorizationErrorToAnyRegion() throws Exception {
+      enqueueRegions("us-east-1", "eu-central-1");
+      enqueueXml("us-east-1", "/availabilityZones.xml");
+      enqueue("eu-central-1", new MockResponse().setResponseCode(401));
+
+      DescribeAvailabilityZonesInRegion supplier = new DescribeAvailabilityZonesInRegion(api(),
+            supplyRegionIds("us-east-1", "eu-central-1"));
+
+      try {
+         supplier.get();
+         fail();
+      } catch (AuthorizationException e){
+
+      }
+
+      assertPosted("us-east-1", "Action=DescribeRegions");
+      assertPosted("us-east-1", "Action=DescribeAvailabilityZones");
+      assertPosted("eu-central-1", "Action=DescribeAvailabilityZones");
+   }
+
+   private static Supplier<Set<String>> supplyRegionIds(String... regionIds) {
+      return Suppliers.<Set<String>>ofInstance(ImmutableSet.copyOf(regionIds));
+   }
+}

http://git-wip-us.apache.org/repos/asf/jclouds/blob/6040f749/apis/ec2/src/test/java/org/jclouds/ec2/suppliers/DescribeAvailabilityZonesInRegionTest.java
----------------------------------------------------------------------
diff --git a/apis/ec2/src/test/java/org/jclouds/ec2/suppliers/DescribeAvailabilityZonesInRegionTest.java b/apis/ec2/src/test/java/org/jclouds/ec2/suppliers/DescribeAvailabilityZonesInRegionTest.java
deleted file mode 100644
index 8d00242..0000000
--- a/apis/ec2/src/test/java/org/jclouds/ec2/suppliers/DescribeAvailabilityZonesInRegionTest.java
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- * 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.suppliers;
-
-import static org.easymock.EasyMock.expect;
-import static org.easymock.classextension.EasyMock.createControl;
-import static org.testng.Assert.assertEquals;
-import static org.testng.Assert.fail;
-
-import java.util.Map;
-import java.util.Set;
-
-import org.easymock.classextension.IMocksControl;
-import org.jclouds.ec2.EC2Api;
-import org.jclouds.ec2.domain.AvailabilityZoneInfo;
-import org.jclouds.ec2.features.AvailabilityZoneAndRegionApi;
-import org.jclouds.http.HttpCommand;
-import org.jclouds.http.HttpResponseException;
-import org.testng.annotations.Test;
-
-import com.google.common.base.Optional;
-import com.google.common.base.Suppliers;
-import com.google.common.collect.ImmutableMap;
-import com.google.common.collect.ImmutableSet;
-import com.google.common.collect.Maps;
-
-/**
- * A test for {@link DescribeAvailabilityZonesInRegion}.
- */
-public class DescribeAvailabilityZonesInRegionTest {
-   @Test
-   public void testDescribeAvailabilityZonesInRegion_BestEffort() {
-      IMocksControl control = createControl();
-      EC2Api client = control.createMock(EC2Api.class);
-      AvailabilityZoneAndRegionApi regionClient = control.createMock(AvailabilityZoneAndRegionApi.class);
-      AvailabilityZoneInfo info1 = control.createMock(AvailabilityZoneInfo.class);
-      AvailabilityZoneInfo info2 = control.createMock(AvailabilityZoneInfo.class);
-      HttpCommand command = control.createMock(HttpCommand.class);
-      HttpResponseException exception = new HttpResponseException("Error: Unable to tunnel through proxy: ...",
-               command, null);
-
-      expect(client.getAvailabilityZoneAndRegionApi()).andStubReturn((Optional) Optional.of(regionClient));
-      expect(regionClient.describeAvailabilityZonesInRegion("accessibleRegion1")).andReturn(
-               ImmutableSet.of(info1));
-      expect(regionClient.describeAvailabilityZonesInRegion("inaccessibleRegion")).andThrow(exception);
-      expect(regionClient.describeAvailabilityZonesInRegion("accessibleRegion2")).andReturn(
-               ImmutableSet.of(info2));
-      expect(info1.getZone()).andStubReturn("zone1");
-      expect(info2.getZone()).andStubReturn("zone2");
-
-      Set<String> regions = ImmutableSet.of("accessibleRegion1", "inaccessibleRegion", "accessibleRegion2");
-      control.replay();
-
-      Map<String, Set<String>> expectedResult = ImmutableMap.<String, Set<String>> builder().put("accessibleRegion1",
-               ImmutableSet.of("zone1")).put("accessibleRegion2", ImmutableSet.of("zone2")).build();
-
-      DescribeAvailabilityZonesInRegion regionIdToZoneId = new DescribeAvailabilityZonesInRegion(client, Suppliers
-               .ofInstance(regions));
-      assertEquals(Maps.transformValues(regionIdToZoneId.get(), Suppliers.<Set<String>> supplierFunction()),
-               expectedResult);
-      control.verify();
-   }
-
-   @Test
-   public void testDescribeAvailabilityZonesInRegion_RethrowIfNoneFound() {
-      IMocksControl control = createControl();
-      EC2Api client = control.createMock(EC2Api.class);
-      AvailabilityZoneAndRegionApi regionClient = control.createMock(AvailabilityZoneAndRegionApi.class);
-      HttpCommand command = control.createMock(HttpCommand.class);
-      HttpResponseException exception = new HttpResponseException("Error: Unable to tunnel through proxy: ...",
-               command, null);
-
-      expect(client.getAvailabilityZoneAndRegionApi()).andStubReturn((Optional) Optional.of(regionClient));
-      expect(regionClient.describeAvailabilityZonesInRegion("inaccessibleRegion")).andThrow(exception);
-
-      Set<String> regions = ImmutableSet.of("inaccessibleRegion");
-      control.replay();
-
-      DescribeAvailabilityZonesInRegion regionIdToZoneId = new DescribeAvailabilityZonesInRegion(client, Suppliers
-               .ofInstance(regions));
-      try {
-         regionIdToZoneId.get();
-         fail("expected exception");
-      } catch (HttpResponseException e) {
-         assertEquals(e, exception);
-      }
-      control.verify();
-   }
-
-   @Test
-   public void testDescribeAvailabilityZonesInRegion_NoZones() {
-      IMocksControl control = createControl();
-      EC2Api client = control.createMock(EC2Api.class);
-      AvailabilityZoneAndRegionApi regionClient = control.createMock(AvailabilityZoneAndRegionApi.class);
-
-      expect(client.getAvailabilityZoneAndRegionApi()).andStubReturn((Optional) Optional.of(regionClient));
-      expect(regionClient.describeAvailabilityZonesInRegion("emptyRegion")).andReturn(
-               ImmutableSet.<AvailabilityZoneInfo> of());
-
-      Set<String> regions = ImmutableSet.of("emptyRegion");
-      control.replay();
-
-      DescribeAvailabilityZonesInRegion regionIdToZoneId = new DescribeAvailabilityZonesInRegion(client, Suppliers
-               .ofInstance(regions));
-      assertEquals(regionIdToZoneId.get(), ImmutableMap.<String, String> of());
-      control.verify();
-   }
-}