merge: Improve discovery of interference models (#76)

This pull request intends to improve discovery of interference models. Previously, interference models were not tied to the workload trace, meaning they had to be resolved separately from the workload trace. In reality, the interference model is always tied to the particular workload trace.

With this pull request, we integrate the interference model into the `odcvm` trace format and make it available through the `opendc-trace` library. This has as additional benefit that we can support different interference formats in the future using the same API.

Furthermore, this change allows us to ship the interference model with the workload traces and resolve them automatically in the future using some form of package manager.

## Implementation Notes :hammer_and_pick:

* Incorporate interference model in trace format 
* Load interference model via trace library
* Move conventions into separate package 

## External Dependencies :four_leaf_clover:

* N/A

## Breaking API Changes :warning:

* `VmInterferenceModelReader` has been removed from `opendc-compute-workload`
* Table and column conventions have been moved in `org.opendc.trace.conv` package

3 files changed, 19 insertions, 3 deletions

diff --git a/opendc-trace/opendc-trace-wtf/src/main/kotlin/org/opendc/trace/wtf/WtfTaskTableReader.kt b/opendc-trace/opendc-trace-wtf/src/main/kotlin/org/opendc/trace/wtf/WtfTaskTableReader.kt
index 45ec25dd..1e332aca 100644
--- a/opendc-trace/opendc-trace-wtf/src/main/kotlin/org/opendc/trace/wtf/WtfTaskTableReader.kt
+++ b/opendc-trace/opendc-trace-wtf/src/main/kotlin/org/opendc/trace/wtf/WtfTaskTableReader.kt
@@ -25,6 +25,7 @@ package org.opendc.trace.wtf
 import org.apache.avro.Schema
 import org.apache.avro.generic.GenericRecord
 import org.opendc.trace.*
+import org.opendc.trace.conv.*
 import org.opendc.trace.util.parquet.LocalParquetReader
 import java.time.Duration
 import java.time.Instant
diff --git a/opendc-trace/opendc-trace-wtf/src/main/kotlin/org/opendc/trace/wtf/WtfTraceFormat.kt b/opendc-trace/opendc-trace-wtf/src/main/kotlin/org/opendc/trace/wtf/WtfTraceFormat.kt
index ef88d295..c8f9ecaa 100644
--- a/opendc-trace/opendc-trace-wtf/src/main/kotlin/org/opendc/trace/wtf/WtfTraceFormat.kt
+++ b/opendc-trace/opendc-trace-wtf/src/main/kotlin/org/opendc/trace/wtf/WtfTraceFormat.kt
@@ -24,6 +24,7 @@ package org.opendc.trace.wtf
 
 import org.apache.avro.generic.GenericRecord
 import org.opendc.trace.*
+import org.opendc.trace.conv.*
 import org.opendc.trace.spi.TableDetails
 import org.opendc.trace.spi.TraceFormat
 import org.opendc.trace.util.parquet.LocalParquetReader
diff --git a/opendc-trace/opendc-trace-wtf/src/test/kotlin/org/opendc/trace/wtf/WtfTraceFormatTest.kt b/opendc-trace/opendc-trace-wtf/src/test/kotlin/org/opendc/trace/wtf/WtfTraceFormatTest.kt
index 09c3703a..0f0e422d 100644
--- a/opendc-trace/opendc-trace-wtf/src/test/kotlin/org/opendc/trace/wtf/WtfTraceFormatTest.kt
+++ b/opendc-trace/opendc-trace-wtf/src/test/kotlin/org/opendc/trace/wtf/WtfTraceFormatTest.kt
@@ -25,7 +25,7 @@ package org.opendc.trace.wtf
 import org.junit.jupiter.api.Assertions.*
 import org.junit.jupiter.api.Test
 import org.junit.jupiter.api.assertThrows
-import org.opendc.trace.*
+import org.opendc.trace.conv.*
 import java.nio.file.Paths
 import java.time.Duration
 import java.time.Instant
@@ -69,7 +69,14 @@ class WtfTraceFormatTest {
             { assertEquals("1078341553348591493", reader.get(TASK_WORKFLOW_ID)) },
             { assertEquals(Instant.ofEpochMilli(245604), reader.get(TASK_SUBMIT_TIME)) },
             { assertEquals(Duration.ofMillis(8163), reader.get(TASK_RUNTIME)) },
-            { assertEquals(setOf("584055316413447529", "133113685133695608", "1008582348422865408"), reader.get(TASK_PARENTS)) },
+            {
+                assertEquals(
+                    setOf("584055316413447529", "133113685133695608", "1008582348422865408"),
+                    reader.get(
+                        TASK_PARENTS
+                    )
+                )
+            },
         )
 
         assertAll(
@@ -78,7 +85,14 @@ class WtfTraceFormatTest {
             { assertEquals("1078341553348591493", reader.get(TASK_WORKFLOW_ID)) },
             { assertEquals(Instant.ofEpochMilli(251325), reader.get(TASK_SUBMIT_TIME)) },
             { assertEquals(Duration.ofMillis(8216), reader.get(TASK_RUNTIME)) },
-            { assertEquals(setOf("584055316413447529", "133113685133695608", "1008582348422865408"), reader.get(TASK_PARENTS)) },
+            {
+                assertEquals(
+                    setOf("584055316413447529", "133113685133695608", "1008582348422865408"),
+                    reader.get(
+                        TASK_PARENTS
+                    )
+                )
+            },
         )
 
         reader.close()