Index diagnostic: use system tyme zone for times in the diagnostic reports.

GitOrigin-RevId: ca77484bd2d7b40f02aa8b9c18871b522a8e9a96

platform/lang-impl/src/com/intellij/util/indexing/diagnostic/dto/JsonConverter.kt

@@ -2,9 +2,7 @@
 package com.intellij.util.indexing.diagnostic.dto
 
 import com.intellij.util.indexing.diagnostic.*
-import com.intellij.util.text.DateFormatUtil
 import java.time.Duration
-import java.time.Instant
 
 fun TimeNano.toMillis(): TimeMillis = this / 1_000_000
 
@@ -12,8 +10,6 @@ fun TimeNano.toMillis(): TimeMillis = this / 1_000_000
 // Can be used to skip int value from JSON if it is equal to 0 (to not pollute the JSON report).
 typealias PositiveInt = Int?
 
-typealias PresentableTime = String
-
 fun Int.toPositiveInt() = takeIf { it > 0 }
 
 fun FileProviderIndexStatistics.toJson(): JsonFileProviderIndexStatistics {
@@ -71,23 +67,20 @@ private fun FileProviderIndexStatistics.aggregateStatsPerIndexer(): List<JsonFil
     }
 }
 
-private fun Instant.toPresentableTime(): PresentableTime =
-  DateFormatUtil.getIso8601Format().format(this.toEpochMilli())
-
 fun ProjectIndexingHistory.IndexingTimes.toJson() =
   JsonProjectIndexingHistoryTimes(
     JsonDuration(Duration.between(indexingStart, indexingEnd).toNanos()),
     JsonDuration(Duration.between(scanFilesStart, scanFilesEnd).toNanos()),
     JsonDuration(Duration.between(pushPropertiesStart, pushPropertiesEnd).toNanos()),
     JsonDuration(Duration.between(indexExtensionsStart, indexExtensionsEnd).toNanos()),
-    indexingStart!!.toPresentableTime(),
-    indexingEnd!!.toPresentableTime(),
-    pushPropertiesStart!!.toPresentableTime(),
-    pushPropertiesEnd!!.toPresentableTime(),
-    indexExtensionsStart!!.toPresentableTime(),
-    indexExtensionsEnd!!.toPresentableTime(),
-    scanFilesStart!!.toPresentableTime(),
-    scanFilesEnd!!.toPresentableTime()
+    JsonDateTime(pushPropertiesStart!!),
+    JsonDateTime(pushPropertiesEnd!!),
+    JsonDateTime(scanFilesStart!!),
+    JsonDateTime(scanFilesEnd!!),
+    JsonDateTime(indexExtensionsStart!!),
+    JsonDateTime(indexExtensionsEnd!!),
+    JsonDateTime(indexingStart!!),
+    JsonDateTime(indexingEnd!!)
   )
 
 private fun calculatePercentages(part: Long, total: Long): JsonPercentages =

platform/lang-impl/src/com/intellij/util/indexing/diagnostic/dto/JsonDateTime.kt

@@ -0,0 +1,23 @@
+// Copyright 2000-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+package com.intellij.util.indexing.diagnostic.dto
+
+import com.fasterxml.jackson.core.JsonGenerator
+import com.fasterxml.jackson.databind.JsonSerializer
+import com.fasterxml.jackson.databind.SerializerProvider
+import com.fasterxml.jackson.databind.annotation.JsonSerialize
+import java.time.Instant
+import java.time.ZoneId
+import java.time.ZonedDateTime
+import java.time.format.DateTimeFormatter
+
+@JsonSerialize(using = JsonDateTime.Companion::class)
+data class JsonDateTime(val instant: Instant) {
+  companion object : JsonSerializer<JsonDateTime>() {
+    override fun serialize(value: JsonDateTime, gen: JsonGenerator, serializers: SerializerProvider?) {
+      gen.writeString(value.presentableDateTime())
+    }
+  }
+
+  fun presentableDateTime(): String =
+    ZonedDateTime.ofInstant(instant, ZoneId.systemDefault()).format(DateTimeFormatter.RFC_1123_DATE_TIME)
+}

platform/lang-impl/src/com/intellij/util/indexing/diagnostic/dto/JsonIndexDiagnosticAppInfo.kt

@@ -3,15 +3,13 @@ package com.intellij.util.indexing.diagnostic.dto
 
 import com.intellij.openapi.application.ApplicationInfo
 import com.intellij.openapi.util.SystemInfo
-import java.time.ZoneId
-import java.time.ZonedDateTime
-import java.time.format.DateTimeFormatter
+import java.time.Instant
 
 data class JsonIndexDiagnosticAppInfo(
   val build: String,
-  val buildDate: String,
+  val buildDate: JsonDateTime,
   val productCode: String,
-  val generated: String,
+  val generated: JsonDateTime,
   val os: String,
   val runtime: String
 ) {
@@ -20,12 +18,9 @@ data class JsonIndexDiagnosticAppInfo(
       val appInfo = ApplicationInfo.getInstance()
       return JsonIndexDiagnosticAppInfo(
         build = appInfo.build.asStringWithoutProductCode(),
-        buildDate = ZonedDateTime.ofInstant(
-          appInfo.buildDate.toInstant(), ZoneId.systemDefault()
-        ).format(DateTimeFormatter.RFC_1123_DATE_TIME),
+        buildDate = JsonDateTime(appInfo.buildDate.toInstant()),
         productCode = appInfo.build.productCode,
-        generated = ZonedDateTime.now().format(
-          DateTimeFormatter.RFC_1123_DATE_TIME),
+        generated = JsonDateTime(Instant.now()),
         os = SystemInfo.getOsNameAndVersion(),
         runtime = SystemInfo.JAVA_VENDOR + " " + SystemInfo.JAVA_VERSION + " " + SystemInfo.JAVA_RUNTIME_VERSION
       )

platform/lang-impl/src/com/intellij/util/indexing/diagnostic/dto/JsonProjectIndexingHistoryTimes.kt

@@ -8,12 +8,12 @@ data class JsonProjectIndexingHistoryTimes(
   val pushPropertiesTime: JsonDuration,
   val indexExtensionsTime: JsonDuration,
 
-  val indexingStart: PresentableTime,
-  val indexingEnd: PresentableTime,
-  val pushPropertiesStart: PresentableTime,
-  val pushPropertiesEnd: PresentableTime,
-  val indexExtensionsStart: PresentableTime,
-  val indexExtensionsEnd: PresentableTime,
-  val scanFilesStart: PresentableTime,
-  val scanFilesEnd: PresentableTime
+  val pushPropertiesStart: JsonDateTime,
+  val pushPropertiesEnd: JsonDateTime,
+  val scanFilesStart: JsonDateTime,
+  val scanFilesEnd: JsonDateTime,
+  val indexExtensionsStart: JsonDateTime,
+  val indexExtensionsEnd: JsonDateTime,
+  val indexingStart: JsonDateTime,
+  val indexingEnd: JsonDateTime
 )