minor improvements to elastic load balancer functionality

aws/core/src/main/java/org/jclouds/aws/elb/ELBAsyncClient.java

@@ -114,7 +114,6 @@ public interface ELBAsyncClient {
    @XMLResponseParser(DescribeLoadBalancersResponseHandler.class)
    @FormParams(keys = ACTION, values = "DescribeLoadBalancers")
    ListenableFuture<? extends Set<LoadBalancer>> describeLoadBalancersInRegion(
-            @EndpointParam(parser = RegionToEndpoint.class) @Nullable String region,
+            @EndpointParam(parser = RegionToEndpoint.class) @Nullable String region);
-            @FormParam("LoadBalancerName") @Nullable String name);
 
 }

aws/core/src/main/java/org/jclouds/aws/elb/ELBClient.java

@@ -94,6 +94,11 @@ public interface ELBClient {
    void deregisterInstancesWithLoadBalancerInRegion(@Nullable String region, String name,
             String... instanceIds);
 
-   Set<LoadBalancer> describeLoadBalancersInRegion(@Nullable String region, @Nullable String name);
+   /**
+    * Returns a set of elastic load balancers
+    * @param region
+    * @return
+    */
+   Set<LoadBalancer> describeLoadBalancersInRegion(@Nullable String region);
 
 }

aws/core/src/test/java/org/jclouds/aws/ec2/compute/EC2LoadBalancerServiceLiveTest.java

@@ -84,10 +84,12 @@ public class EC2LoadBalancerServiceLiveTest extends BaseLoadBalancerServiceLiveT
       for (NodeMetadata node : nodes) {
          instanceIds.add(node.getProviderId());
       }
-      Set<LoadBalancer> elbs = elbClient.describeLoadBalancersInRegion(Region.US_EAST_1, tag);
+      Set<LoadBalancer> elbs = elbClient.describeLoadBalancersInRegion(Region.US_EAST_1);
       assertNotNull(elbs);
-      LoadBalancer elb = elbs.iterator().next();
+      for(LoadBalancer elb:elbs)
+      {
+          if(elb.getName().equals(tag))
               assertEquals(elb.getInstanceIds(), instanceIds);
       }
-
+   }
 }

aws/core/src/test/java/org/jclouds/aws/elb/ELBClientLiveTest.java

@@ -78,10 +78,9 @@ public class ELBClientLiveTest {
 
    @Test(dependsOnMethods = "testCreateLoadBalancer")
    void testDescribeLoadBalancers() {
-      String name = "TestDescribeLoadBalancer";
       for (String region : Lists.newArrayList(null, Region.EU_WEST_1, Region.US_EAST_1,
                Region.US_WEST_1, Region.AP_SOUTHEAST_1)) {
-         Set<LoadBalancer> allResults = client.describeLoadBalancersInRegion(region, name);
+         Set<LoadBalancer> allResults = client.describeLoadBalancersInRegion(region);
          assertNotNull(allResults);
          assert (allResults.size() >= 1);
       }

compute/src/main/java/org/jclouds/compute/LoadBalancerService.java

@@ -69,4 +69,7 @@ public interface LoadBalancerService {
    @Beta
    void destroyLoadBalancer(String handle);
    
+   @Beta
+   Set<String> listLoadBalancers();
+
 }

compute/src/main/java/org/jclouds/compute/internal/BaseLoadBalancerService.java

@@ -35,6 +35,7 @@ import org.jclouds.compute.domain.NodeMetadata;
 import org.jclouds.compute.predicates.NodePredicates;
 import org.jclouds.compute.reference.ComputeServiceConstants;
 import org.jclouds.compute.strategy.DestroyLoadBalancerStrategy;
+import org.jclouds.compute.strategy.ListLoadBalancersStrategy;
 import org.jclouds.compute.strategy.LoadBalanceNodesStrategy;
 import org.jclouds.domain.Location;
 import org.jclouds.http.handlers.BackoffLimitedRetryHandler;
@@ -68,17 +69,21 @@ public class BaseLoadBalancerService implements LoadBalancerService {
    protected final ComputeServiceContext context;
    protected final LoadBalanceNodesStrategy loadBalancerStrategy;
    protected final DestroyLoadBalancerStrategy destroyLoadBalancerStrategy;
+   protected final ListLoadBalancersStrategy listLoadBalancersStrategy;
    protected final BackoffLimitedRetryHandler backoffLimitedRetryHandler;
 
    @Inject
    protected BaseLoadBalancerService(ComputeServiceContext context,
             LoadBalanceNodesStrategy loadBalancerStrategy,
             DestroyLoadBalancerStrategy destroyLoadBalancerStrategy,
+            ListLoadBalancersStrategy listLoadBalancersStrategy,
             BackoffLimitedRetryHandler backoffLimitedRetryHandler) {
       this.context = checkNotNull(context, "context");
       this.loadBalancerStrategy = checkNotNull(loadBalancerStrategy, "loadBalancerStrategy");
       this.destroyLoadBalancerStrategy = checkNotNull(destroyLoadBalancerStrategy,
                "destroyLoadBalancerStrategy");
+      this.listLoadBalancersStrategy = checkNotNull(listLoadBalancersStrategy,
+               "listLoadBalancersStrategy");
       this.backoffLimitedRetryHandler = checkNotNull(backoffLimitedRetryHandler,
                "backoffLimitedRetryHandler");
    }
@@ -131,4 +136,10 @@ public class BaseLoadBalancerService implements LoadBalancerService {
       logger.debug("<< destroyed load balancer(%s) success(%s)", loadBalancer, successful);
    }
    
+   public Set<String> listLoadBalancers()
+   {
+       Set<String> loadBalancerSet = listLoadBalancersStrategy.execute();
+       return loadBalancerSet;
+   }
+
 }