refactored IsLinkedClone

sandbox-apis/virtualbox/src/main/java/org/jclouds/virtualbox/predicates/IMachinePredicates.java

@@ -0,0 +1,70 @@
+/**
+ * Licensed to jclouds, Inc. (jclouds) under one or more
+ * contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  jclouds 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.virtualbox.predicates;
+
+import static com.google.common.base.Predicates.and;
+import static com.google.common.collect.Iterables.any;
+import static com.google.common.collect.Iterables.transform;
+import static org.jclouds.virtualbox.predicates.IMediumPredicates.deviceTypeEquals;
+import static org.jclouds.virtualbox.predicates.IMediumPredicates.hasParent;
+import static org.jclouds.virtualbox.predicates.IMediumPredicates.machineIdsContain;
+import static org.jclouds.virtualbox.util.IMediumAttachments.toMedium;
+import static org.virtualbox_4_1.DeviceType.HardDisk;
+
+import javax.annotation.Nullable;
+
+import org.virtualbox_4_1.IMachine;
+import org.virtualbox_4_1.IMedium;
+
+import com.google.common.base.Predicate;
+
+/**
+ * 
+ * @author Adrian Cole
+ */
+public class IMachinePredicates {
+   /**
+    * TODO: andrea please explain
+    * 
+    */
+   static enum IsLinkedClone implements Predicate<IMachine> {
+      INSTANCE;
+
+      @SuppressWarnings("unchecked")
+      @Override
+      public boolean apply(@Nullable IMachine machine) {
+         Iterable<IMedium> mediumsOnMachine = transform(machine.getMediumAttachments(), toMedium());
+         // TODO: previous impl walked the parent medium back to the child
+         // before checking machine ids. Determine if that extra walk was really
+         // necessary
+         return any(mediumsOnMachine, and(deviceTypeEquals(HardDisk), hasParent(), machineIdsContain(machine.getId())));
+      }
+
+      @Override
+      public String toString() {
+         return "isLinkedClone()";
+      }
+
+   }
+
+   public static Predicate<IMachine> isLinkedClone() {
+      return IsLinkedClone.INSTANCE;
+   }
+
+}

sandbox-apis/virtualbox/src/main/java/org/jclouds/virtualbox/predicates/IMediumPredicates.java

@@ -0,0 +1,97 @@
+/**
+ * Licensed to jclouds, Inc. (jclouds) under one or more
+ * contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  jclouds 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.virtualbox.predicates;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static com.google.common.base.Predicates.equalTo;
+import static com.google.common.collect.Iterables.any;
+
+import org.virtualbox_4_1.DeviceType;
+import org.virtualbox_4_1.IMedium;
+
+import com.google.common.base.Predicate;
+
+/**
+ * 
+ * @author Adrian Cole
+ */
+public class IMediumPredicates {
+   public static class DeviceTypeEquals implements Predicate<IMedium> {
+      private final DeviceType deviceType;
+
+      public DeviceTypeEquals(DeviceType deviceType) {
+         this.deviceType = checkNotNull(deviceType, "deviceType");
+      }
+
+      @Override
+      public boolean apply(IMedium arg0) {
+         return deviceType.equals(arg0.getDeviceType());
+      }
+
+      @Override
+      public String toString() {
+         return "deviceTypeEquals(" + deviceType + ")";
+      }
+   }
+
+   public static Predicate<IMedium> deviceTypeEquals(DeviceType deviceType) {
+      return new DeviceTypeEquals(deviceType);
+   }
+
+   public static enum HasParent implements Predicate<IMedium> {
+      INSTANCE;
+
+      @Override
+      public boolean apply(IMedium arg0) {
+         return arg0.getParent() != null;
+      }
+
+      @Override
+      public String toString() {
+         return "hasParent()";
+      }
+   }
+
+   public static Predicate<IMedium> hasParent() {
+      return HasParent.INSTANCE;
+   }
+
+   public static class MachineIdsContain implements Predicate<IMedium> {
+      private final String id;
+
+      public MachineIdsContain(String id) {
+         this.id = checkNotNull(id, "id");
+      }
+
+      @Override
+      public boolean apply(IMedium arg0) {
+         return any(arg0.getMachineIds(), equalTo(id));
+      }
+
+      @Override
+      public String toString() {
+         return "machineIdsContain(" + id + ")";
+      }
+   }
+
+   public static Predicate<IMedium> machineIdsContain(String id) {
+      return new MachineIdsContain(id);
+   }
+
+}

sandbox-apis/virtualbox/src/main/java/org/jclouds/virtualbox/predicates/IsLinkedClone.java

@@ -1,92 +0,0 @@
-/**
- * Licensed to jclouds, Inc. (jclouds) under one or more
- * contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  jclouds 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.virtualbox.predicates;
-
-import javax.annotation.Nullable;
-import javax.annotation.Resource;
-import javax.inject.Inject;
-import javax.inject.Named;
-import javax.inject.Singleton;
-
-import org.jclouds.compute.reference.ComputeServiceConstants;
-import org.jclouds.logging.Logger;
-import org.virtualbox_4_1.DeviceType;
-import org.virtualbox_4_1.IMachine;
-import org.virtualbox_4_1.IMedium;
-import org.virtualbox_4_1.IMediumAttachment;
-import org.virtualbox_4_1.IStorageController;
-import org.virtualbox_4_1.VirtualBoxManager;
-
-import com.google.common.base.Predicate;
-import com.google.common.base.Supplier;
-
-/**
- * 
- * @author Andrea Turli
- */
-@Singleton
-public class IsLinkedClone implements Predicate<IMachine> {
-
-   @Resource
-   @Named(ComputeServiceConstants.COMPUTE_LOGGER)
-   protected Logger logger = Logger.NULL;
-
-   private final Supplier<VirtualBoxManager> manager;
-
-   @Inject
-   public IsLinkedClone(Supplier<VirtualBoxManager> manager) {
-      this.manager = manager;
-   }
-
-   @Override
-   public boolean apply(@Nullable IMachine machine) {
-
-      for (IStorageController iStorageController : machine
-            .getStorageControllers()) {
-
-         for (IMediumAttachment iMediumAttachment : machine
-               .getMediumAttachmentsOfController(iStorageController.getName())) {
-            IMedium iMedium = iMediumAttachment.getMedium();
-            if (iMedium.getDeviceType().equals(DeviceType.HardDisk)) {
-               if (iMedium.getParent() != null) {
-                  // more than one machine is attached to this hd
-                  for (IMedium child : iMedium.getParent().getChildren()) {
-                     for (String machineId : child.getMachineIds()) {
-                        IMachine iMachine = manager.get().getVBox().findMachine(
-                              machineId);
-                        if (!iMachine.getName().equals(machine.getName())) {
-                           logger.debug("Machine %s is a linked clone",
-                                 machine.getName());
-                           return true;
-                        }
-                     }
-                  }
-               }
-            }
-         }
-      }
-      return false;
-   }
-
-   @Override
-   public String toString() {
-      return "IsLinkedClone()";
-   }
-
-}

sandbox-apis/virtualbox/src/main/java/org/jclouds/virtualbox/util/IMediumAttachments.java

@@ -0,0 +1,47 @@
+/**
+ * Licensed to jclouds, Inc. (jclouds) under one or more
+ * contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  jclouds 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.virtualbox.util;
+
+import org.virtualbox_4_1.IMedium;
+import org.virtualbox_4_1.IMediumAttachment;
+
+import com.google.common.base.Function;
+
+/**
+ * 
+ * @author Adrian Cole
+ */
+public class IMediumAttachments {
+   static enum ToMedium implements Function<IMediumAttachment, IMedium> {
+      INSTANCE;
+      @Override
+      public IMedium apply(IMediumAttachment arg0) {
+         return arg0.getMedium();
+      }
+
+      @Override
+      public String toString() {
+         return "toMedium()";
+      }
+   };
+
+   public static Function<IMediumAttachment, IMedium> toMedium() {
+      return ToMedium.INSTANCE;
+   }
+}

sandbox-apis/virtualbox/src/test/java/org/jclouds/virtualbox/predicates/IMachinePredicatesLiveTest.java

@@ -19,6 +19,7 @@
 package org.jclouds.virtualbox.predicates;
 
 import static org.jclouds.virtualbox.config.VirtualBoxConstants.VIRTUALBOX_IMAGE_PREFIX;
+import static org.jclouds.virtualbox.predicates.IMachinePredicates.isLinkedClone;
 import static org.testng.Assert.assertTrue;
 
 import org.jclouds.virtualbox.BaseVirtualBoxClientLiveTest;
@@ -46,10 +47,9 @@ import com.google.inject.Injector;
  * 
  * @author Andrea Turli
  */
-@Test(groups = "live", singleThreaded = true, testName = "IsLinkedClonesLiveTest")
-public class IsLinkedClonesLiveTest extends BaseVirtualBoxClientLiveTest {
+@Test(groups = "live", singleThreaded = true, testName = "IMachinePredicatesLiveTest")
+public class IMachinePredicatesLiveTest extends BaseVirtualBoxClientLiveTest {
 
-   private static final boolean IS_LINKED_CLONE = true;
    private String osTypeId = "";
    private String ideControllerName = "IDE Controller";
    private String cloneName;
@@ -62,11 +62,10 @@ public class IsLinkedClonesLiveTest extends BaseVirtualBoxClientLiveTest {
    @BeforeClass(groups = "live")
    public void setupClient() {
       super.setupClient();
-      vmName = VIRTUALBOX_IMAGE_PREFIX 
-            + CaseFormat.UPPER_CAMEL.to(CaseFormat.LOWER_HYPHEN, getClass().getSimpleName());
+      vmName = VIRTUALBOX_IMAGE_PREFIX + CaseFormat.UPPER_CAMEL.to(CaseFormat.LOWER_HYPHEN, getClass().getSimpleName());
 
-      cloneName = VIRTUALBOX_IMAGE_PREFIX 
-            + "Clone#" + CaseFormat.UPPER_CAMEL.to(CaseFormat.LOWER_HYPHEN, getClass().getSimpleName());
+      cloneName = VIRTUALBOX_IMAGE_PREFIX + "Clone#"
+            + CaseFormat.UPPER_CAMEL.to(CaseFormat.LOWER_HYPHEN, getClass().getSimpleName());
 
       HardDisk hardDisk = HardDisk.builder().diskpath(adminDisk).autoDelete(true).controllerPort(0).deviceSlot(1)
                .build();
@@ -89,23 +88,23 @@ public class IsLinkedClonesLiveTest extends BaseVirtualBoxClientLiveTest {
    public void testLinkedClone() {
 
       Injector injector = context.utils().injector();
-      IMachine master = injector.getInstance(CreateAndRegisterMachineFromIsoIfNotAlreadyExists.class)
-               .apply(masterMachineSpec);
-      IMachine clone = new CloneAndRegisterMachineFromIMachineIfNotAlreadyExists(manager, workingDir, cloneSpec,
-               IS_LINKED_CLONE).apply(master);
+      IMachine master = injector.getInstance(CreateAndRegisterMachineFromIsoIfNotAlreadyExists.class).apply(
+            masterMachineSpec);
+      IMachine clone = new CloneAndRegisterMachineFromIMachineIfNotAlreadyExists(manager, workingDir, cloneSpec, true)
+            .apply(master);
 
-      assertTrue(new IsLinkedClone(manager).apply(clone));
+      assertTrue(isLinkedClone().apply(clone));
    }
 
    /*
-   public void testFullClone() {
-      IMachine master = context.utils().injector().getInstance(CreateAndRegisterMachineFromIsoIfNotAlreadyExists.class)
-               .apply(masterSpec);
-      IMachine clone = new CloneAndRegisterMachineFromIMachineIfNotAlreadyExists(manager, workingDir, cloneSpec,
-               !IS_LINKED_CLONE).apply(master);
-
-      assertFalse(new IsLinkedClone(manager).apply(clone));
-   }
+    * public void testFullClone() { IMachine master =
+    * context.utils().injector().
+    * getInstance(CreateAndRegisterMachineFromIsoIfNotAlreadyExists.class)
+    * .apply(masterSpec); IMachine clone = new
+    * CloneAndRegisterMachineFromIMachineIfNotAlreadyExists(manager, workingDir,
+    * cloneSpec, !IS_LINKED_CLONE).apply(master);
+    * 
+    * assertFalse(new IsLinkedClone(manager).apply(clone)); }
     */
 
    @BeforeMethod