Initial Contribution of the rollout-management feature

- Repository functionality for rollout, rolloutgroup entities
- Rollout scheduler to watch and handle running rollouts and start next
group of rollout
- Vaadin view to administrate rollouts and reflect the current rollout
status
- REST resources to cover rollout creation, updating, starting, pausing
and resuming

Signed-off-by: Michael Hirsch <michael.hirsch@bosch-si.com>

hawkbit-core/src/main/java/org/eclipse/hawkbit/eventbus/event/AbstractEvent.java

@@ -0,0 +1,45 @@
+/**
+ * Copyright (c) 2015 Bosch Software Innovations GmbH and others.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.eclipse.hawkbit.eventbus.event;
+
+/**
+ * Abstract event definition class which holds the necessary revsion and tenant
+ * information which every event needs.
+ * 
+ * @author Michael Hirsch
+ * @see AbstractDistributedEvent for events which should be distributed to other
+ *      cluster nodes
+ */
+public class AbstractEvent implements Event {
+
+    private final long revision;
+    private final String tenant;
+
+    /**
+     * @param revision
+     *            the revision number of the event
+     * @param tenant
+     *            the tenant of the event
+     */
+    protected AbstractEvent(final long revision, final String tenant) {
+        this.revision = revision;
+        this.tenant = tenant;
+    }
+
+    @Override
+    public long getRevision() {
+        return revision;
+    }
+
+    @Override
+    public String getTenant() {
+        return tenant;
+    }
+
+}

hawkbit-core/src/main/java/org/eclipse/hawkbit/eventbus/event/CancelTargetAssignmentEvent.java

@@ -17,7 +17,7 @@ import java.net.URI;
  *
  *
  */
-public class CancelTargetAssignmentEvent {
+public class CancelTargetAssignmentEvent extends AbstractEvent {
 
     private final String controllerId;
     private final Long actionId;
@@ -26,6 +26,10 @@ public class CancelTargetAssignmentEvent {
     /**
      * Creates a new {@link CancelTargetAssignmentEvent}.
      *
+     * @param revision
+     *            the revision for this event
+     * @param tenant
+     *            the tenant for this event
      * @param controllerId
      *            the ID of the controller
      * @param actionId
@@ -33,7 +37,9 @@ public class CancelTargetAssignmentEvent {
      * @param targetAdress
      *            the targetAdress of the target
      */
-    public CancelTargetAssignmentEvent(final String controllerId, final Long actionId, final URI targetAdress) {
+    public CancelTargetAssignmentEvent(final long revision, final String tenant, final String controllerId,
+            final Long actionId, final URI targetAdress) {
+        super(revision, tenant);
         this.controllerId = controllerId;
         this.actionId = actionId;
         this.targetAdress = targetAdress;

hawkbit-core/src/main/java/org/eclipse/hawkbit/exception/SpServerError.java

@@ -174,7 +174,13 @@ public enum SpServerError {
     *
     */
     SP_REPO_ENTITY_READ_ONLY("hawkbit.server.error.entityreadonly",
-            "The given entity is read only and the change cannot be completed.");
+            "The given entity is read only and the change cannot be completed."),
+
+    /**
+     * 
+     */
+    SP_ROLLOUT_ILLEGAL_STATE("hawkbit.server.error.rollout.illegalstate",
+            "The rollout is currently in the wrong state for the current operation");
 
     private final String key;
     private final String message;

hawkbit-core/src/main/java/org/eclipse/hawkbit/repository/RolloutFields.java

@@ -0,0 +1,40 @@
+/**
+ * Copyright (c) 2015 Bosch Software Innovations GmbH and others.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.eclipse.hawkbit.repository;
+
+/**
+ * Describing the fields of the Rollout model which can be used in the REST API
+ * e.g. for sorting etc.
+ *
+ */
+public enum RolloutFields implements FieldNameProvider {
+    /**
+     * The name field.
+     */
+    NAME("name"),
+    /**
+     * The description field.
+     */
+    DESCRIPTION("description"),
+    /**
+     * The id field.
+     */
+    ID("id");
+
+    private final String fieldName;
+
+    private RolloutFields(final String fieldName) {
+        this.fieldName = fieldName;
+    }
+
+    @Override
+    public String getFieldName() {
+        return fieldName;
+    }
+}

hawkbit-core/src/main/java/org/eclipse/hawkbit/repository/RolloutGroupFields.java

@@ -0,0 +1,40 @@
+/**
+ * Copyright (c) 2015 Bosch Software Innovations GmbH and others.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.eclipse.hawkbit.repository;
+
+/**
+ * Describing the fields of the RolloutGroup model which can be used in the REST
+ * API e.g. for sorting etc.
+ *
+ */
+public enum RolloutGroupFields implements FieldNameProvider {
+    /**
+     * The name field.
+     */
+    NAME("name"),
+    /**
+     * The description field.
+     */
+    DESCRIPTION("description"),
+    /**
+     * The id field.
+     */
+    ID("id");
+
+    private final String fieldName;
+
+    private RolloutGroupFields(final String fieldName) {
+        this.fieldName = fieldName;
+    }
+
+    @Override
+    public String getFieldName() {
+        return fieldName;
+    }
+}