feat(trace): Add support for internal OpenDC VM trace format

This change adds official support to the trace library for the internal
VM trace format used by OpenDC for its experiments. This is a compact
format that uses Parquet to store the virtual machine trace data in two
Parquet files.

11 files changed, 600 insertions, 0 deletions

diff --git a/opendc-trace/opendc-trace-opendc/build.gradle.kts b/opendc-trace/opendc-trace-opendc/build.gradle.kts
new file mode 100644
index 00000000..b9c242a1
--- /dev/null
+++ b/opendc-trace/opendc-trace-opendc/build.gradle.kts
@@ -0,0 +1,39 @@
+/*
+ * 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.
+ */
+
+description = "Support for OpenDC-specific trace formats"
+
+/* Build configuration */
+plugins {
+    `kotlin-library-conventions`
+    `testing-conventions`
+    `jacoco-conventions`
+}
+
+dependencies {
+    api(platform(projects.opendcPlatform))
+    api(projects.opendcTrace.opendcTraceApi)
+
+    implementation(projects.opendcTrace.opendcTraceParquet)
+
+    testRuntimeOnly(libs.slf4j.simple)
+}
diff --git a/opendc-trace/opendc-trace-opendc/src/main/kotlin/org/opendc/trace/opendc/OdcVmResourceStateTable.kt b/opendc-trace/opendc-trace-opendc/src/main/kotlin/org/opendc/trace/opendc/OdcVmResourceStateTable.kt
new file mode 100644
index 00000000..32a71052
--- /dev/null
+++ b/opendc-trace/opendc-trace-opendc/src/main/kotlin/org/opendc/trace/opendc/OdcVmResourceStateTable.kt
@@ -0,0 +1,53 @@
+/*
+ * 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.trace.opendc
+
+import org.apache.avro.generic.GenericRecord
+import org.opendc.trace.*
+import org.opendc.trace.util.parquet.LocalParquetReader
+import java.nio.file.Path
+
+/**
+ * The resource state [Table] in the OpenDC virtual machine trace format.
+ */
+internal class OdcVmResourceStateTable(private val path: Path) : Table {
+    override val name: String = TABLE_RESOURCE_STATES
+    override val isSynthetic: Boolean = false
+
+    override val columns: List<TableColumn<*>> = listOf(
+        RESOURCE_STATE_ID,
+        RESOURCE_STATE_TIMESTAMP,
+        RESOURCE_STATE_DURATION,
+        RESOURCE_STATE_NCPUS,
+        RESOURCE_STATE_CPU_USAGE,
+    )
+
+    override fun newReader(): TableReader {
+        val reader = LocalParquetReader<GenericRecord>(path.resolve("trace.parquet"))
+        return OdcVmResourceStateTableReader(reader)
+    }
+
+    override fun newReader(partition: String): TableReader {
+        throw IllegalArgumentException("Unknown partition $partition")
+    }
+}
diff --git a/opendc-trace/opendc-trace-opendc/src/main/kotlin/org/opendc/trace/opendc/OdcVmResourceStateTableReader.kt b/opendc-trace/opendc-trace-opendc/src/main/kotlin/org/opendc/trace/opendc/OdcVmResourceStateTableReader.kt
new file mode 100644
index 00000000..8850ad39
--- /dev/null
+++ b/opendc-trace/opendc-trace-opendc/src/main/kotlin/org/opendc/trace/opendc/OdcVmResourceStateTableReader.kt
@@ -0,0 +1,103 @@
+/*
+ * 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.trace.opendc
+
+import org.apache.avro.generic.GenericRecord
+import org.opendc.trace.*
+import org.opendc.trace.util.parquet.LocalParquetReader
+import java.time.Duration
+import java.time.Instant
+
+/**
+ * A [TableReader] implementation for the OpenDC virtual machine trace format.
+ */
+internal class OdcVmResourceStateTableReader(private val reader: LocalParquetReader<GenericRecord>) : TableReader {
+    /**
+     * The current record.
+     */
+    private var record: GenericRecord? = null
+
+    override fun nextRow(): Boolean {
+        record = reader.read()
+        return record != null
+    }
+
+    override fun hasColumn(column: TableColumn<*>): Boolean {
+        return when (column) {
+            RESOURCE_STATE_ID -> true
+            RESOURCE_STATE_TIMESTAMP -> true
+            RESOURCE_STATE_DURATION -> true
+            RESOURCE_STATE_NCPUS -> true
+            RESOURCE_STATE_CPU_USAGE -> true
+            else -> false
+        }
+    }
+
+    override fun <T> get(column: TableColumn<T>): T {
+        val record = checkNotNull(record) { "Reader in invalid state" }
+
+        @Suppress("UNCHECKED_CAST")
+        val res: Any = when (column) {
+            RESOURCE_STATE_ID -> record["id"].toString()
+            RESOURCE_STATE_TIMESTAMP -> Instant.ofEpochMilli(record["time"] as Long)
+            RESOURCE_STATE_DURATION -> Duration.ofMillis(record["duration"] as Long)
+            RESOURCE_STATE_NCPUS -> record["cores"]
+            RESOURCE_STATE_CPU_USAGE -> (record["cpuUsage"] as Number).toDouble()
+            else -> throw IllegalArgumentException("Invalid column")
+        }
+
+        @Suppress("UNCHECKED_CAST")
+        return res as T
+    }
+
+    override fun getBoolean(column: TableColumn<Boolean>): Boolean {
+        throw IllegalArgumentException("Invalid column")
+    }
+
+    override fun getInt(column: TableColumn<Int>): Int {
+        val record = checkNotNull(record) { "Reader in invalid state" }
+
+        return when (column) {
+            RESOURCE_STATE_NCPUS -> record["cores"] as Int
+            else -> throw IllegalArgumentException("Invalid column")
+        }
+    }
+
+    override fun getLong(column: TableColumn<Long>): Long {
+        throw IllegalArgumentException("Invalid column")
+    }
+
+    override fun getDouble(column: TableColumn<Double>): Double {
+        val record = checkNotNull(record) { "Reader in invalid state" }
+        return when (column) {
+            RESOURCE_STATE_CPU_USAGE -> (record["cpuUsage"] as Number).toDouble()
+            else -> throw IllegalArgumentException("Invalid column")
+        }
+    }
+
+    override fun close() {
+        reader.close()
+    }
+
+    override fun toString(): String = "OdcVmResourceStateTableReader"
+}
diff --git a/opendc-trace/opendc-trace-opendc/src/main/kotlin/org/opendc/trace/opendc/OdcVmResourceTable.kt b/opendc-trace/opendc-trace-opendc/src/main/kotlin/org/opendc/trace/opendc/OdcVmResourceTable.kt
new file mode 100644
index 00000000..9927afee
--- /dev/null
+++ b/opendc-trace/opendc-trace-opendc/src/main/kotlin/org/opendc/trace/opendc/OdcVmResourceTable.kt
@@ -0,0 +1,53 @@
+/*
+ * 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.trace.opendc
+
+import org.apache.avro.generic.GenericRecord
+import org.opendc.trace.*
+import org.opendc.trace.util.parquet.LocalParquetReader
+import java.nio.file.Path
+
+/**
+ * The resource [Table] for the OpenDC virtual machine trace format.
+ */
+internal class OdcVmResourceTable(private val path: Path) : Table {
+    override val name: String = TABLE_RESOURCES
+    override val isSynthetic: Boolean = false
+
+    override val columns: List<TableColumn<*>> = listOf(
+        RESOURCE_ID,
+        RESOURCE_START_TIME,
+        RESOURCE_STOP_TIME,
+        RESOURCE_NCPUS,
+        RESOURCE_MEM_CAPACITY
+    )
+
+    override fun newReader(): TableReader {
+        val reader = LocalParquetReader<GenericRecord>(path.resolve("meta.parquet"))
+        return OdcVmResourceTableReader(reader)
+    }
+
+    override fun newReader(partition: String): TableReader {
+        throw IllegalArgumentException("Unknown partition $partition")
+    }
+}
diff --git a/opendc-trace/opendc-trace-opendc/src/main/kotlin/org/opendc/trace/opendc/OdcVmResourceTableReader.kt b/opendc-trace/opendc-trace-opendc/src/main/kotlin/org/opendc/trace/opendc/OdcVmResourceTableReader.kt
new file mode 100644
index 00000000..fe4379e6
--- /dev/null
+++ b/opendc-trace/opendc-trace-opendc/src/main/kotlin/org/opendc/trace/opendc/OdcVmResourceTableReader.kt
@@ -0,0 +1,103 @@
+/*
+ * 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.trace.opendc
+
+import org.apache.avro.generic.GenericRecord
+import org.opendc.trace.*
+import org.opendc.trace.util.parquet.LocalParquetReader
+import java.time.Instant
+
+/**
+ * A [TableReader] implementation for the resources table in the OpenDC virtual machine trace format.
+ */
+internal class OdcVmResourceTableReader(private val reader: LocalParquetReader<GenericRecord>) : TableReader {
+    /**
+     * The current record.
+     */
+    private var record: GenericRecord? = null
+
+    override fun nextRow(): Boolean {
+        record = reader.read()
+        return record != null
+    }
+
+    override fun hasColumn(column: TableColumn<*>): Boolean {
+        return when (column) {
+            RESOURCE_ID -> true
+            RESOURCE_START_TIME -> true
+            RESOURCE_STOP_TIME -> true
+            RESOURCE_NCPUS -> true
+            RESOURCE_MEM_CAPACITY -> true
+            else -> false
+        }
+    }
+
+    override fun <T> get(column: TableColumn<T>): T {
+        val record = checkNotNull(record) { "Reader in invalid state" }
+
+        @Suppress("UNCHECKED_CAST")
+        val res: Any = when (column) {
+            RESOURCE_ID -> record["id"].toString()
+            RESOURCE_START_TIME -> Instant.ofEpochMilli(record["submissionTime"] as Long)
+            RESOURCE_STOP_TIME -> Instant.ofEpochMilli(record["endTime"] as Long)
+            RESOURCE_NCPUS -> getInt(RESOURCE_NCPUS)
+            RESOURCE_MEM_CAPACITY -> getDouble(RESOURCE_MEM_CAPACITY)
+            else -> throw IllegalArgumentException("Invalid column")
+        }
+
+        @Suppress("UNCHECKED_CAST")
+        return res as T
+    }
+
+    override fun getBoolean(column: TableColumn<Boolean>): Boolean {
+        throw IllegalArgumentException("Invalid column")
+    }
+
+    override fun getInt(column: TableColumn<Int>): Int {
+        val record = checkNotNull(record) { "Reader in invalid state" }
+
+        return when (column) {
+            RESOURCE_NCPUS -> record["maxCores"] as Int
+            else -> throw IllegalArgumentException("Invalid column")
+        }
+    }
+
+    override fun getLong(column: TableColumn<Long>): Long {
+        throw IllegalArgumentException("Invalid column")
+    }
+
+    override fun getDouble(column: TableColumn<Double>): Double {
+        val record = checkNotNull(record) { "Reader in invalid state" }
+
+        return when (column) {
+            RESOURCE_MEM_CAPACITY -> (record["requiredMemory"] as Number).toDouble() * 1000.0 // MB to KB
+            else -> throw IllegalArgumentException("Invalid column")
+        }
+    }
+
+    override fun close() {
+        reader.close()
+    }
+
+    override fun toString(): String = "OdcVmResourceTableReader"
+}
diff --git a/opendc-trace/opendc-trace-opendc/src/main/kotlin/org/opendc/trace/opendc/OdcVmTrace.kt b/opendc-trace/opendc-trace-opendc/src/main/kotlin/org/opendc/trace/opendc/OdcVmTrace.kt
new file mode 100644
index 00000000..3e5029b4
--- /dev/null
+++ b/opendc-trace/opendc-trace-opendc/src/main/kotlin/org/opendc/trace/opendc/OdcVmTrace.kt
@@ -0,0 +1,49 @@
+/*
+ * 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.trace.opendc
+
+import org.opendc.trace.TABLE_RESOURCES
+import org.opendc.trace.TABLE_RESOURCE_STATES
+import org.opendc.trace.Table
+import org.opendc.trace.Trace
+import java.nio.file.Path
+
+/**
+ * A [Trace] in the OpenDC virtual machine trace format.
+ */
+public class OdcVmTrace internal constructor(private val path: Path) : Trace {
+    override val tables: List<String> = listOf(TABLE_RESOURCES, TABLE_RESOURCE_STATES)
+
+    override fun containsTable(name: String): Boolean =
+        name == TABLE_RESOURCES || name == TABLE_RESOURCE_STATES
+
+    override fun getTable(name: String): Table? {
+        return when (name) {
+            TABLE_RESOURCES -> OdcVmResourceTable(path)
+            TABLE_RESOURCE_STATES -> OdcVmResourceStateTable(path)
+            else -> null
+        }
+    }
+
+    override fun toString(): String = "OdcVmTrace[$path]"
+}
diff --git a/opendc-trace/opendc-trace-opendc/src/main/kotlin/org/opendc/trace/opendc/OdcVmTraceFormat.kt b/opendc-trace/opendc-trace-opendc/src/main/kotlin/org/opendc/trace/opendc/OdcVmTraceFormat.kt
new file mode 100644
index 00000000..b69b5edf
--- /dev/null
+++ b/opendc-trace/opendc-trace-opendc/src/main/kotlin/org/opendc/trace/opendc/OdcVmTraceFormat.kt
@@ -0,0 +1,82 @@
+/*
+ * 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.trace.opendc
+
+import org.apache.avro.Schema
+import org.apache.avro.SchemaBuilder
+import org.opendc.trace.spi.TraceFormat
+import java.net.URL
+import java.nio.file.Paths
+import kotlin.io.path.exists
+
+/**
+ * A [TraceFormat] implementation of the OpenDC virtual machine trace format.
+ */
+public class OdcVmTraceFormat : TraceFormat {
+    /**
+     * The name of this trace format.
+     */
+    override val name: String = "opendc-vm"
+
+    /**
+     * Open a Bitbrains Parquet trace.
+     */
+    override fun open(url: URL): OdcVmTrace {
+        val path = Paths.get(url.toURI())
+        require(path.exists()) { "URL $url does not exist" }
+        return OdcVmTrace(path)
+    }
+
+    public companion object {
+        /**
+         * Schema for the resources table in the trace.
+         */
+        @JvmStatic
+        public val RESOURCES_SCHEMA: Schema = SchemaBuilder
+            .record("resource")
+            .namespace("org.opendc.trace.opendc")
+            .fields()
+            .requiredString("id")
+            .requiredLong("submissionTime")
+            .requiredLong("endTime")
+            .requiredInt("maxCores")
+            .requiredLong("requiredMemory")
+            .endRecord()
+
+        /**
+         * Schema for the resource states table in the trace.
+         */
+        @JvmStatic
+        public val RESOURCE_STATES_SCHEMA: Schema = SchemaBuilder
+            .record("resource_state")
+            .namespace("org.opendc.trace.opendc")
+            .fields()
+            .requiredString("id")
+            .requiredLong("time")
+            .requiredLong("duration")
+            .requiredInt("cores")
+            .requiredDouble("cpuUsage")
+            .requiredLong("flops")
+            .endRecord()
+    }
+}
diff --git a/opendc-trace/opendc-trace-opendc/src/main/resources/META-INF/services/org.opendc.trace.spi.TraceFormat b/opendc-trace/opendc-trace-opendc/src/main/resources/META-INF/services/org.opendc.trace.spi.TraceFormat
new file mode 100644
index 00000000..94094af4
--- /dev/null
+++ b/opendc-trace/opendc-trace-opendc/src/main/resources/META-INF/services/org.opendc.trace.spi.TraceFormat
@@ -0,0 +1 @@
+org.opendc.trace.opendc.OdcVmTraceFormat
diff --git a/opendc-trace/opendc-trace-opendc/src/test/kotlin/org/opendc/trace/opendc/OdcVmTraceFormatTest.kt b/opendc-trace/opendc-trace-opendc/src/test/kotlin/org/opendc/trace/opendc/OdcVmTraceFormatTest.kt
new file mode 100644
index 00000000..21f1174c
--- /dev/null
+++ b/opendc-trace/opendc-trace-opendc/src/test/kotlin/org/opendc/trace/opendc/OdcVmTraceFormatTest.kt
@@ -0,0 +1,117 @@
+/*
+ * 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.trace.opendc
+
+import org.junit.jupiter.api.Assertions.*
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.assertDoesNotThrow
+import org.junit.jupiter.api.assertThrows
+import org.opendc.trace.*
+import java.io.File
+import java.net.URL
+
+/**
+ * Test suite for the [OdcVmTraceFormat] implementation.
+ */
+internal class OdcVmTraceFormatTest {
+    private val format = OdcVmTraceFormat()
+
+    @Test
+    fun testTraceExists() {
+        val url = File("src/test/resources/trace").toURI().toURL()
+        assertDoesNotThrow { format.open(url) }
+    }
+
+    @Test
+    fun testTraceDoesNotExists() {
+        val url = File("src/test/resources/trace").toURI().toURL()
+        assertThrows<IllegalArgumentException> {
+            format.open(URL(url.toString() + "help"))
+        }
+    }
+
+    @Test
+    fun testTables() {
+        val url = File("src/test/resources/trace").toURI().toURL()
+        val trace = format.open(url)
+
+        assertEquals(listOf(TABLE_RESOURCES, TABLE_RESOURCE_STATES), trace.tables)
+    }
+
+    @Test
+    fun testTableExists() {
+        val url = File("src/test/resources/trace").toURI().toURL()
+        val table = format.open(url).getTable(TABLE_RESOURCE_STATES)
+
+        assertNotNull(table)
+        assertDoesNotThrow { table!!.newReader() }
+    }
+
+    @Test
+    fun testTableDoesNotExist() {
+        val url = File("src/test/resources/trace").toURI().toURL()
+        val trace = format.open(url)
+
+        assertFalse(trace.containsTable("test"))
+        assertNull(trace.getTable("test"))
+    }
+
+    @Test
+    fun testResources() {
+        val url = File("src/test/resources/trace").toURI().toURL()
+        val trace = format.open(url)
+
+        val reader = trace.getTable(TABLE_RESOURCES)!!.newReader()
+
+        assertAll(
+            { assertTrue(reader.nextRow()) },
+            { assertEquals("1019", reader.get(RESOURCE_ID)) },
+            { assertTrue(reader.nextRow()) },
+            { assertEquals("1023", reader.get(RESOURCE_ID)) },
+            { assertTrue(reader.nextRow()) },
+            { assertEquals("1052", reader.get(RESOURCE_ID)) },
+            { assertTrue(reader.nextRow()) },
+            { assertEquals("1073", reader.get(RESOURCE_ID)) },
+            { assertFalse(reader.nextRow()) }
+        )
+
+        reader.close()
+    }
+
+    @Test
+    fun testSmoke() {
+        val url = File("src/test/resources/trace").toURI().toURL()
+        val trace = format.open(url)
+
+        val reader = trace.getTable(TABLE_RESOURCE_STATES)!!.newReader()
+
+        assertAll(
+            { assertTrue(reader.nextRow()) },
+            { assertEquals("1019", reader.get(RESOURCE_STATE_ID)) },
+            { assertEquals(1376314846, reader.get(RESOURCE_STATE_TIMESTAMP).epochSecond) },
+            { assertEquals(0.0, reader.getDouble(RESOURCE_STATE_CPU_USAGE), 0.01) }
+        )
+
+        reader.close()
+    }
+}
diff --git a/opendc-trace/opendc-trace-opendc/src/test/resources/trace/meta.parquet b/opendc-trace/opendc-trace-opendc/src/test/resources/trace/meta.parquet
new file mode 100644
index 00000000..d6ff09d8
--- /dev/null
+++ b/opendc-trace/opendc-trace-opendc/src/test/resources/trace/meta.parquet
diff --git a/opendc-trace/opendc-trace-opendc/src/test/resources/trace/trace.parquet b/opendc-trace/opendc-trace-opendc/src/test/resources/trace/trace.parquet
new file mode 100644
index 00000000..5b6fa6b7
--- /dev/null
+++ b/opendc-trace/opendc-trace-opendc/src/test/resources/trace/trace.parquet