Issue 306: started converting to name based instead of id based vcloud operations

vcloud/core/src/main/java/org/jclouds/vcloud/functions/VDCNameToEndpoint.java

@@ -0,0 +1,54 @@
+/**
+ *
+ * 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.vcloud.functions;
+
+import java.net.URI;
+
+import javax.inject.Inject;
+import javax.inject.Singleton;
+
+import org.jclouds.vcloud.domain.Organization;
+import org.jclouds.vcloud.endpoints.VDC;
+
+import com.google.common.base.Function;
+
+/**
+ * 
+ * @author Adrian Cole
+ */
+@Singleton
+public class VDCNameToEndpoint implements Function<Object, URI> {
+   private final URI defaultVDC;
+   private final Organization org;
+
+   @Inject
+   public VDCNameToEndpoint(Organization org, @VDC URI defaultVDC) {
+      this.org = org;
+      this.defaultVDC = defaultVDC;
+   }
+
+   public URI apply(Object from) {
+      try {
+         return from == null ? defaultVDC : org.getVDCs().get(from).getLocation();
+      } catch (NullPointerException e) {
+         throw new IllegalArgumentException("vdc name: " + from + " not in " + org.getVDCs());
+      }
+   }
+
+}