Adds implementation for the delay feature in rollup jobs (#147)

* Adds delay implementation for rollup jobs

* Removes non-continuous delay implementation

* Adds additional rollup delay tests

Signed-off-by: Clay Downs <downsrob@amazon.com>

src/main/kotlin/org/opensearch/indexmanagement/rollup/RollupSearchService.kt

@@ -104,12 +104,12 @@ class RollupSearchService(
             logger.debug("Non-continuous job [${rollup.id}] is not processing next window [$metadata]")
             return false
         } else {
-            return hasNextFullWindow(metadata) // TODO: Behavior when next full window but 0 docs/afterkey is null
+            return hasNextFullWindow(rollup, metadata) // TODO: Behavior when next full window but 0 docs/afterkey is null
         }
     }
 
-    private fun hasNextFullWindow(metadata: RollupMetadata): Boolean {
-        return Instant.now().isAfter(metadata.continuous!!.nextWindowEndTime) // TODO: !!
+    private fun hasNextFullWindow(rollup: Rollup, metadata: RollupMetadata): Boolean {
+        return Instant.now().isAfter(metadata.continuous!!.nextWindowEndTime.plusMillis(rollup.delay ?: 0)) // TODO: !!
     }
 
     @Suppress("ComplexMethod")

src/main/kotlin/org/opensearch/indexmanagement/rollup/model/Rollup.kt

@@ -61,7 +61,7 @@ data class Rollup(
     val primaryTerm: Long = SequenceNumbers.UNASSIGNED_PRIMARY_TERM,
     val enabled: Boolean,
     val schemaVersion: Long,
-    val jobSchedule: Schedule,
+    var jobSchedule: Schedule,
     val jobLastUpdatedTime: Instant,
     val jobEnabledTime: Instant?,
     val description: String,
@@ -83,12 +83,26 @@ data class Rollup(
         } else {
             require(jobEnabledTime == null) { "Job enabled time must not be present if the job is disabled" }
         }
+        // Copy the delay parameter of the job into the job scheduler for continuous jobs only
+        if (jobSchedule.delay != delay && continuous) {
+            jobSchedule = when (jobSchedule) {
+                is CronSchedule -> {
+                    val cronSchedule = jobSchedule as CronSchedule
+                    CronSchedule(cronSchedule.cronExpression, cronSchedule.timeZone, delay ?: 0)
+                }
+                is IntervalSchedule -> {
+                    val intervalSchedule = jobSchedule as IntervalSchedule
+                    IntervalSchedule(intervalSchedule.startTime, intervalSchedule.interval, intervalSchedule.unit, delay ?: 0)
+                }
+                else -> jobSchedule
+            }
+        }
         when (jobSchedule) {
             is CronSchedule -> {
                 // Job scheduler already correctly throws errors for this
             }
             is IntervalSchedule -> {
-                require(jobSchedule.interval >= MINIMUM_JOB_INTERVAL) { "Rollup job schedule interval must be greater than 0" }
+                require((jobSchedule as IntervalSchedule).interval >= MINIMUM_JOB_INTERVAL) { "Rollup job schedule interval must be greater than 0" }
             }
         }
         require(sourceIndex != targetIndex) { "Your source and target index cannot be the same" }
@@ -97,7 +111,10 @@ data class Rollup(
         }
         require(dimensions.first().type == Dimension.Type.DATE_HISTOGRAM) { "The first dimension must be a date histogram" }
         require(pageSize in MINIMUM_PAGE_SIZE..MAXIMUM_PAGE_SIZE) { "Page size must be between 1 and 10,000" }
-        if (delay != null) require(delay >= MINIMUM_DELAY) { "Delay must be non-negative if set" }
+        if (delay != null) {
+            require(delay >= MINIMUM_DELAY) { "Delay must be non-negative if set" }
+            require(delay <= Instant.now().toEpochMilli()) { "Delay must be less than the current unix time" }
+        }
     }
 
     override fun isEnabled() = enabled
@@ -331,7 +348,7 @@ data class Rollup(
             // TODO: Make startTime public in Job Scheduler so we can just directly check the value
             if (seqNo == SequenceNumbers.UNASSIGNED_SEQ_NO || primaryTerm == SequenceNumbers.UNASSIGNED_PRIMARY_TERM) {
                 if (schedule is IntervalSchedule) {
-                    schedule = IntervalSchedule(Instant.now(), schedule.interval, schedule.unit)
+                    schedule = IntervalSchedule(Instant.now(), schedule.interval, schedule.unit, schedule.delay ?: 0)
                 }
             }
             return Rollup(

src/main/resources/mappings/opendistro-ism-config.json

@@ -1,6 +1,6 @@
 {
   "_meta" : {
-    "schema_version": 11
+    "schema_version": 12
   },
   "dynamic": "strict",
   "properties": {
@@ -600,6 +600,9 @@
                 "start_time": {
                   "type": "date",
                   "format": "strict_date_time||epoch_millis"
+                },
+                "schedule_delay": {
+                  "type": "long"
                 }
               }
             },
@@ -610,6 +613,9 @@
                 },
                 "timezone": {
                   "type": "keyword"
+                },
+                "schedule_delay": {
+                  "type": "long"
                 }
               }
             }
@@ -792,6 +798,9 @@
                 "start_time": {
                   "type": "date",
                   "format": "strict_date_time||epoch_millis"
+                },
+                "schedule_delay": {
+                  "type": "long"
                 }
               }
             },
@@ -802,6 +811,9 @@
                 },
                 "timezone": {
                   "type": "keyword"
+                },
+                "schedule_delay": {
+                  "type": "long"
                 }
               }
             }
@@ -1046,6 +1058,9 @@
                 "start_time": {
                   "type": "date",
                   "format": "strict_date_time||epoch_millis"
+                },
+                "schedule_delay": {
+                  "type": "long"
                 }
               }
             },
@@ -1056,6 +1071,9 @@
                 },
                 "timezone": {
                   "type": "keyword"
+                },
+                "schedule_delay": {
+                  "type": "long"
                 }
               }
             }

src/test/kotlin/org/opensearch/indexmanagement/IndexManagementRestTestCase.kt

@@ -46,7 +46,7 @@ import javax.management.remote.JMXServiceURL
 
 abstract class IndexManagementRestTestCase : ODFERestTestCase() {
 
-    val configSchemaVersion = 11
+    val configSchemaVersion = 12
     val historySchemaVersion = 3
 
     // Having issues with tests leaking into other tests and mappings being incorrect and they are not caught by any pending task wait check as

src/test/kotlin/org/opensearch/indexmanagement/rollup/TestHelpers.kt

@@ -129,7 +129,7 @@ fun randomRollup(): Rollup {
         metadataID = if (OpenSearchRestTestCase.randomBoolean()) null else OpenSearchRestTestCase.randomAlphaOfLength(10),
         roles = OpenSearchRestTestCase.randomList(10) { OpenSearchRestTestCase.randomAlphaOfLength(10) },
         pageSize = OpenSearchRestTestCase.randomIntBetween(1, 10000),
-        delay = OpenSearchRestTestCase.randomNonNegativeLong(),
+        delay = 0,
         continuous = OpenSearchRestTestCase.randomBoolean(),
         dimensions = randomRollupDimensions(),
         metrics = OpenSearchRestTestCase.randomList(20, ::randomRollupMetrics).distinctBy { it.targetField },

src/test/kotlin/org/opensearch/indexmanagement/rollup/model/RollupTests.kt

@@ -27,6 +27,7 @@
 package org.opensearch.indexmanagement.rollup.model
 
 import org.opensearch.indexmanagement.randomInstant
+import org.opensearch.indexmanagement.randomSchedule
 import org.opensearch.indexmanagement.rollup.randomDateHistogram
 import org.opensearch.indexmanagement.rollup.randomRollup
 import org.opensearch.indexmanagement.rollup.randomTerms
@@ -95,9 +96,30 @@ class RollupTests : OpenSearchTestCase() {
         assertFailsWith(IllegalArgumentException::class, "Delay was negative") {
             randomRollup().copy(delay = -1)
         }
+        assertFailsWith(IllegalArgumentException::class, "Delay was too high") {
+            randomRollup().copy(delay = Long.MAX_VALUE)
+        }
 
         // These should successfully parse without exceptions
         randomRollup().copy(delay = 0)
         randomRollup().copy(delay = 930490)
+        randomRollup().copy(delay = null)
+    }
+
+    fun `test delay applies to continuous rollups only`() {
+        // Continuous rollup schedule matches delay
+        val newDelay: Long = 500
+        val continuousRollup = randomRollup().copy(
+            delay = newDelay,
+            continuous = true
+        )
+        assertEquals(newDelay, continuousRollup.jobSchedule.delay)
+        // Non continuous rollup schedule should have null delay
+        val nonContinuousRollup = randomRollup().copy(
+            jobSchedule = randomSchedule(),
+            delay = newDelay,
+            continuous = false
+        )
+        assertNull(nonContinuousRollup.jobSchedule.delay)
     }
 }

src/test/kotlin/org/opensearch/indexmanagement/rollup/model/WriteableTests.kt

@@ -128,7 +128,7 @@ class WriteableTests : OpenSearchTestCase() {
     }
 
     fun `test rollup as stream`() {
-        val rollup = randomRollup()
+        val rollup = randomRollup().copy(delay = randomLongBetween(0, 60000000))
         val out = BytesStreamOutput().also { rollup.writeTo(it) }
         val sin = StreamInput.wrap(out.bytes().toBytesRef().bytes)
         val streamedRollup = Rollup(sin)

src/test/kotlin/org/opensearch/indexmanagement/rollup/model/XContentTests.kt

@@ -126,7 +126,7 @@ class XContentTests : OpenSearchTestCase() {
     }
 
     fun `test rollup parsing with type`() {
-        val rollup = randomRollup()
+        val rollup = randomRollup().copy(delay = randomLongBetween(0, 60000000))
         val rollupString = rollup.toJsonString()
         val parser = parserWithType(rollupString)
         val parsedRollup = parser.parseWithType(rollup.id, rollup.seqNo, rollup.primaryTerm, Rollup.Companion::parse)
@@ -135,7 +135,7 @@ class XContentTests : OpenSearchTestCase() {
     }
 
     fun `test rollup parsing without type`() {
-        val rollup = randomRollup()
+        val rollup = randomRollup().copy(delay = randomLongBetween(0, 60000000))
         val rollupString = rollup.toJsonString(XCONTENT_WITHOUT_TYPE)
         val parsedRollup = Rollup.parse(parser(rollupString), rollup.id, rollup.seqNo, rollup.primaryTerm)
         // roles are deprecated and not populated in toXContent and parsed as part of parse