compute: Move ComputeService implementation in service module

This change introduces the ComputeService interface (previously
VirtProvisioningService) and provides a central implementation in
opendc-compute-service.

Previously, the implementation of this interface was bound to the
simulator package, which meant that independent business logic could not
be re-used without importing the simulator code.

13 files changed, 0 insertions, 541 deletions

diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/Host.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/Host.kt
deleted file mode 100644
index 9a96ff6f..00000000
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/Host.kt
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
- * Copyright (c) 2021 AtLarge Research
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-package org.opendc.compute.core.virt
-
-import kotlinx.coroutines.flow.Flow
-import org.opendc.compute.api.Server
-import java.util.*
-
-/**
- * Base interface for representing compute resources that host virtualized [Server] instances.
- */
-public interface Host {
-    /**
-     * A unique identifier representing the host.
-     */
-    public val uid: UUID
-
-    /**
-     * The state of the host.
-     */
-    public val state: HostState
-
-    /**
-     * The events emitted by the driver.
-     */
-    public val events: Flow<HostEvent>
-
-    /**
-     * Determine whether the specified [instance][server] can still fit on this host.
-     */
-    public fun canFit(server: Server): Boolean
-
-    /**
-     * Register the specified [instance][server] on the host.
-     *
-     * Once the method returns, the instance should be running if [start] is true or else the instance should be
-     * stopped.
-     */
-    public suspend fun spawn(server: Server, start: Boolean = true)
-
-    /**
-     * Determine whether the specified [instance][server] exists on the host.
-     */
-    public operator fun contains(server: Server): Boolean
-
-    /**
-     * Stat the server [instance][server] if it is currently not running on this host.
-     *
-     * @throws IllegalArgumentException if the server is not present on the host.
-     */
-    public suspend fun start(server: Server)
-
-    /**
-     * Stop the server [instance][server] if it is currently running on this host.
-     *
-     * @throws IllegalArgumentException if the server is not present on the host.
-     */
-    public suspend fun stop(server: Server)
-
-    /**
-     * Terminate the specified [instance][server] on this host and cleanup all resources associated with it.
-     */
-    public suspend fun terminate(server: Server)
-
-    /**
-     * Add a [HostListener] to this host.
-     */
-    public fun addListener(listener: HostListener)
-
-    /**
-     * Remove a [HostListener] from this host.
-     */
-    public fun removeListener(listener: HostListener)
-}
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/HostEvent.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/HostEvent.kt
deleted file mode 100644
index a07523e8..00000000
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/HostEvent.kt
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * Copyright (c) 2020 AtLarge Research
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-package org.opendc.compute.core.virt
-
-import org.opendc.compute.core.metal.Node
-
-/**
- * An event that is emitted by a [Host].
- */
-public sealed class HostEvent {
-    /**
-     * The driver that emitted the event.
-     */
-    public abstract val driver: Host
-
-    /**
-     * This event is emitted when the number of active servers on the server managed by this driver is updated.
-     *
-     * @property driver The driver that emitted the event.
-     * @property numberOfActiveServers The number of active servers.
-     * @property availableMemory The available memory, in MB.
-     */
-    public data class VmsUpdated(
-        override val driver: Host,
-        public val numberOfActiveServers: Int,
-        public val availableMemory: Long
-    ) : HostEvent()
-
-    /**
-     * This event is emitted when a slice is finished.
-     *
-     * @property driver The driver that emitted the event.
-     * @property requestedBurst The total requested CPU time (can be above capacity).
-     * @property grantedBurst The actual total granted capacity, which might be lower than the requested burst due to
-     * the hypervisor being interrupted during a slice.
-     * @property overcommissionedBurst The CPU time that the hypervisor could not grant to the virtual machine since
-     * it did not have the capacity.
-     * @property interferedBurst The sum of CPU time that virtual machines could not utilize due to performance
-     * interference.
-     * @property cpuUsage CPU use in megahertz.
-     * @property cpuDemand CPU demand in megahertz.
-     * @property numberOfDeployedImages The number of images deployed on this hypervisor.
-     */
-    public data class SliceFinished(
-        override val driver: Host,
-        public val requestedBurst: Long,
-        public val grantedBurst: Long,
-        public val overcommissionedBurst: Long,
-        public val interferedBurst: Long,
-        public val cpuUsage: Double,
-        public val cpuDemand: Double,
-        public val numberOfDeployedImages: Int,
-        public val host: Node
-    ) : HostEvent()
-}
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/HostListener.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/HostListener.kt
deleted file mode 100644
index 4ebb9066..00000000
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/HostListener.kt
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Copyright (c) 2021 AtLarge Research
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-package org.opendc.compute.core.virt
-
-import org.opendc.compute.api.Server
-import org.opendc.compute.api.ServerState
-
-/**
- * Listener interface for events originating from a [Host].
- */
-public interface HostListener {
-    /**
-     * This method is invoked when the state of an [instance][server] on [host] changes.
-     */
-    public fun onStateChange(host: Host, server: Server, newState: ServerState) {}
-
-    /**
-     * This method is invoked when the state of a [Host] has changed.
-     */
-    public fun onStateChange(host: Host, newState: HostState) {}
-}
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/HostState.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/HostState.kt
deleted file mode 100644
index 7f87f5f7..00000000
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/HostState.kt
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * Copyright (c) 2021 AtLarge Research
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-package org.opendc.compute.core.virt
-
-/**
- * The state of a host.
- */
-public enum class HostState {
-    /**
-     * The host is up.
-     */
-    UP,
-
-    /**
-     * The host is down.
-     */
-    DOWN
-}
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/InsufficientMemoryOnServerException.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/InsufficientMemoryOnServerException.kt
deleted file mode 100644
index 0f7b5826..00000000
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/InsufficientMemoryOnServerException.kt
+++ /dev/null
@@ -1,3 +0,0 @@
-package org.opendc.compute.core.virt
-
-public class InsufficientMemoryOnServerException : IllegalStateException("Insufficient memory left on server.")
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/VirtProvisioningEvent.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/VirtProvisioningEvent.kt
deleted file mode 100644
index abd2fc95..00000000
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/VirtProvisioningEvent.kt
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * MIT License
- *
- * Copyright (c) 2020 atlarge-research
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-package org.opendc.compute.core.virt.service
-
-/**
- * An event that is emitted by the [VirtProvisioningService].
- */
-public sealed class VirtProvisioningEvent {
-    /**
-     * The service that has emitted the event.
-     */
-    public abstract val provisioner: VirtProvisioningService
-
-    /**
-     * An event emitted for writing metrics.
-     */
-    public data class MetricsAvailable(
-        override val provisioner: VirtProvisioningService,
-        public val totalHostCount: Int,
-        public val availableHostCount: Int,
-        public val totalVmCount: Int,
-        public val activeVmCount: Int,
-        public val inactiveVmCount: Int,
-        public val waitingVmCount: Int,
-        public val failedVmCount: Int
-    ) : VirtProvisioningEvent()
-}
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/VirtProvisioningService.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/VirtProvisioningService.kt
deleted file mode 100644
index a83b68dc..00000000
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/VirtProvisioningService.kt
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright (c) 2020 AtLarge Research
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-package org.opendc.compute.core.virt.service
-
-import kotlinx.coroutines.flow.Flow
-import org.opendc.compute.api.ComputeClient
-import org.opendc.compute.core.virt.Host
-
-/**
- * A service for VM provisioning on a cloud.
- */
-public interface VirtProvisioningService {
-    /**
-     * The events emitted by the service.
-     */
-    public val events: Flow<VirtProvisioningEvent>
-
-    /**
-     * Obtain the active hypervisors for this provisioner.
-     */
-    public suspend fun drivers(): Set<Host>
-
-    /**
-     * The number of hosts available in the system.
-     */
-    public val hostCount: Int
-
-    /**
-     * Create a new [ComputeClient] to control the compute service.
-     */
-    public fun newClient(): ComputeClient
-
-    /**
-     * Terminate the provisioning service releasing all the leased bare-metal machines.
-     */
-    public suspend fun terminate()
-}
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/events/HypervisorAvailableEvent.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/events/HypervisorAvailableEvent.kt
deleted file mode 100644
index c1802e64..00000000
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/events/HypervisorAvailableEvent.kt
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Copyright (c) 2020 AtLarge Research
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-package org.opendc.compute.core.virt.service.events
-
-import org.opendc.trace.core.Event
-import java.util.*
-
-/**
- * This event is emitted when a hypervisor has become available.
- */
-public class HypervisorAvailableEvent(public val uid: UUID) : Event()
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/events/HypervisorUnavailableEvent.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/events/HypervisorUnavailableEvent.kt
deleted file mode 100644
index 1fea21ea..00000000
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/events/HypervisorUnavailableEvent.kt
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Copyright (c) 2020 AtLarge Research
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-package org.opendc.compute.core.virt.service.events
-
-import org.opendc.trace.core.Event
-import java.util.*
-
-/**
- * This event is emitted when a hypervisor has become unavailable.
- */
-public class HypervisorUnavailableEvent(public val uid: UUID) : Event()
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/events/VmScheduledEvent.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/events/VmScheduledEvent.kt
deleted file mode 100644
index 662068dd..00000000
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/events/VmScheduledEvent.kt
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright (c) 2020 AtLarge Research
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-package org.opendc.compute.core.virt.service.events
-
-import org.opendc.trace.core.Event
-
-/**
- * This event is emitted when a virtual machine has successfully been scheduled on a hypervisor.
- */
-public class VmScheduledEvent(public val name: String) : Event()
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/events/VmStoppedEvent.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/events/VmStoppedEvent.kt
deleted file mode 100644
index 96103129..00000000
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/events/VmStoppedEvent.kt
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright (c) 2020 AtLarge Research
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-package org.opendc.compute.core.virt.service.events
-
-import org.opendc.trace.core.Event
-
-/**
- * This event is emitted when a virtual machine has stopped running.
- */
-public class VmStoppedEvent(public val name: String) : Event()
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/events/VmSubmissionEvent.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/events/VmSubmissionEvent.kt
deleted file mode 100644
index e31c0864..00000000
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/events/VmSubmissionEvent.kt
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Copyright (c) 2020 AtLarge Research
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-package org.opendc.compute.core.virt.service.events
-
-import org.opendc.compute.api.Flavor
-import org.opendc.compute.api.Image
-import org.opendc.trace.core.Event
-
-/**
- * This event is emitted when a virtual machine is submitted to the provisioning service.
- */
-public class VmSubmissionEvent(public val name: String, public val image: Image, public val flavor: Flavor) : Event()
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/events/VmSubmissionInvalidEvent.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/events/VmSubmissionInvalidEvent.kt
deleted file mode 100644
index d0e5c102..00000000
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/events/VmSubmissionInvalidEvent.kt
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright (c) 2020 AtLarge Research
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-package org.opendc.compute.core.virt.service.events
-
-import org.opendc.trace.core.Event
-
-/**
- * An event that is emitted when the submission is deemed to be invalid.
- */
-public class VmSubmissionInvalidEvent(public val name: String) : Event()