added ListLoadBalancer classes

aws/core/src/main/java/org/jclouds/aws/ec2/compute/strategy/EC2ListLoadBalancersStrategy.java

@@ -0,0 +1,66 @@
+/**
+ *
+ * Copyright (C) 2009 Cloud Conscious, LLC. <info@cloudconscious.com>
+ *
+ * ====================================================================
+ * Licensed 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.aws.ec2.compute.strategy;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import javax.annotation.Resource;
+import javax.inject.Inject;
+import javax.inject.Named;
+import javax.inject.Singleton;
+
+import org.jclouds.aws.elb.ELBClient;
+import org.jclouds.aws.elb.domain.LoadBalancer;
+import org.jclouds.compute.reference.ComputeServiceConstants;
+import org.jclouds.compute.strategy.ListLoadBalancersStrategy;
+import org.jclouds.logging.Logger;
+
+/**
+ * 
+ * @author Adrian Cole
+ */
+@Singleton
+public class EC2ListLoadBalancersStrategy implements ListLoadBalancersStrategy {
+   @Resource
+   @Named(ComputeServiceConstants.COMPUTE_LOGGER)
+   protected Logger logger = Logger.NULL;
+
+   private final ELBClient elbClient;
+
+   @Inject
+   protected EC2ListLoadBalancersStrategy(ELBClient elbClient) {
+      this.elbClient = checkNotNull(elbClient, "elbClient");
+   }
+
+   @Override
+   public Set<String> execute() {
+
+      Set<LoadBalancer> loadBalancers = elbClient.describeLoadBalancersInRegion(null);
+      Set<String> loadBalancerDnsNames = new HashSet<String>();
+      for(LoadBalancer loadBalancer: loadBalancers)
+      {
+          loadBalancerDnsNames.add(loadBalancer.getDnsName());
+      }
+      return loadBalancerDnsNames;
+   }
+}

compute/src/main/java/org/jclouds/compute/strategy/ListLoadBalancersStrategy.java

@@ -0,0 +1,36 @@
+/**
+ *
+ * Copyright (C) 2009 Cloud Conscious, LLC. <info@cloudconscious.com>
+ *
+ * ====================================================================
+ * Licensed 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.compute.strategy;
+
+import java.util.Set;
+
+import com.google.common.annotations.Beta;
+
+/**
+ * 
+ * 
+ * @author Adrian Cole
+ */
+@Beta
+public interface ListLoadBalancersStrategy {
+
+   Set<String> execute();
+
+}