Allow to store JsonNumber in Record (#36)

normalized-cache-incubating/src/commonMain/kotlin/com/apollographql/cache/normalized/api/Record.kt

@@ -23,7 +23,7 @@ class Record(
      * - Map (for custom scalars)
      * - null
      */
-    val fields: Map<String, Any?>,
+    val fields: Map<String, RecordValue>,
     val mutationId: Uuid? = null,
 ) : Map<String, Any?> by fields {
 
@@ -126,3 +126,15 @@ fun Record.receivedDate(field: String) = metadata[field]?.get(ApolloCacheHeaders
 
 @ApolloInternal
 fun Record.expirationDate(field: String) = metadata[field]?.get(ApolloCacheHeaders.EXPIRATION_DATE) as? Long
+
+
+/**
+ * A typealias for a type-unsafe Kotlin representation of a Record value. This typealias is
+ * mainly for internal documentation purposes and low-level manipulations and should
+ * generally be avoided in application code.
+ *
+ * [RecordValue] can be any of:
+ * - [com.apollographql.apollo.api.json.ApolloJsonElement]
+ * - [CacheKey]
+ */
+typealias RecordValue = Any?

normalized-cache-incubating/src/commonMain/kotlin/com/apollographql/cache/normalized/api/internal/BlobRecordSerializer.kt

@@ -1,6 +1,7 @@
 package com.apollographql.cache.normalized.api.internal
 
 import com.apollographql.apollo.annotations.ApolloInternal
+import com.apollographql.apollo.api.json.JsonNumber
 import com.apollographql.cache.normalized.api.CacheKey
 import com.apollographql.cache.normalized.api.Record
 import okio.Buffer
@@ -94,7 +95,12 @@ object BlobRecordSerializer {
 
       is Double -> {
         buffer.writeByte(DOUBLE)
-        buffer.writeString(value.toString())
+        buffer.writeLong(value.toBits())
+      }
+
+      is JsonNumber -> {
+        buffer.writeByte(JSON_NUMBER)
+        buffer.writeString(value.value)
       }
 
       is Boolean -> {
@@ -139,7 +145,8 @@ object BlobRecordSerializer {
       STRING -> readString()
       INT -> readInt()
       LONG -> readLong()
-      DOUBLE -> readString().toDouble()
+      DOUBLE -> Double.fromBits(readLong())
+      JSON_NUMBER -> JsonNumber(readString())
       BOOLEAN -> readByte() > 0
       CACHE_KEY -> {
         CacheKey(readString())
@@ -169,8 +176,9 @@ object BlobRecordSerializer {
   private const val LONG = 2
   private const val BOOLEAN = 3
   private const val DOUBLE = 4
-  private const val LIST = 5
-  private const val MAP = 6
-  private const val CACHE_KEY = 7
-  private const val NULL = 8
+  private const val JSON_NUMBER = 5
+  private const val LIST = 6
+  private const val MAP = 7
+  private const val CACHE_KEY = 8
+  private const val NULL = 9
 }

normalized-cache-incubating/src/commonMain/kotlin/com/apollographql/cache/normalized/api/internal/Normalizer.kt

@@ -9,6 +9,7 @@ import com.apollographql.apollo.api.CompiledSelection
 import com.apollographql.apollo.api.CompiledType
 import com.apollographql.apollo.api.Executable
 import com.apollographql.apollo.api.isComposite
+import com.apollographql.apollo.api.json.ApolloJsonElement
 import com.apollographql.cache.normalized.api.CacheKey
 import com.apollographql.cache.normalized.api.CacheKeyGenerator
 import com.apollographql.cache.normalized.api.CacheKeyGeneratorContext
@@ -34,7 +35,11 @@ internal class Normalizer(
 ) {
   private val records = mutableMapOf<String, Record>()
 
-  fun normalize(map: Map<String, Any?>, selections: List<CompiledSelection>, parentType: CompiledNamedType): Map<String, Record> {
+  fun normalize(
+      map: Map<String, ApolloJsonElement>,
+      selections: List<CompiledSelection>,
+      parentType: CompiledNamedType,
+  ): Map<String, Record> {
     buildRecord(map, rootKey, selections, parentType)
 
     return records
@@ -114,7 +119,7 @@ internal class Normalizer(
    * @return the CacheKey if this object has a CacheKey or the new Map if the object was embedded
    */
   private fun buildRecord(
-      obj: Map<String, Any?>,
+      obj: Map<String, ApolloJsonElement>,
       key: String,
       selections: List<CompiledSelection>,
       parentType: CompiledNamedType,

normalized-cache-incubating/src/commonMain/kotlin/com/apollographql/cache/normalized/api/internal/RecordWeigher.kt

@@ -1,7 +1,10 @@
 package com.apollographql.cache.normalized.api.internal
 
+import com.apollographql.apollo.api.json.JsonNumber
 import com.apollographql.cache.normalized.api.CacheKey
 import com.apollographql.cache.normalized.api.Record
+import com.apollographql.cache.normalized.api.RecordValue
+import okio.internal.commonAsUtf8ToByteArray
 import kotlin.jvm.JvmStatic
 
 internal object RecordWeigher {
@@ -30,28 +33,30 @@ internal object RecordWeigher {
     return size
   }
 
-  private fun weighField(field: Any?): Int {
+  private fun weighField(field: RecordValue): Int {
     return when (field) {
       null -> SIZE_OF_NULL
-      is String -> field.length
+      is String -> field.commonAsUtf8ToByteArray().size
       is Boolean -> SIZE_OF_BOOLEAN
       is Int -> SIZE_OF_INT
       is Long -> SIZE_OF_LONG // Might happen with LongDataAdapter
       is Double -> SIZE_OF_DOUBLE
-      is List<*> -> {
-        SIZE_OF_ARRAY_OVERHEAD + field.sumOf { weighField(it) }
-      }
-
-      is CacheKey -> {
-        SIZE_OF_CACHE_KEY_OVERHEAD + field.key.length
-      }
+      is JsonNumber -> field.value.commonAsUtf8ToByteArray().size + SIZE_OF_LONG
       /**
        * Custom scalars with a json object representation are stored directly in the record
        */
       is Map<*, *> -> {
         SIZE_OF_MAP_OVERHEAD + field.keys.sumOf { weighField(it) } + field.values.sumOf { weighField(it) }
       }
 
+      is List<*> -> {
+        SIZE_OF_ARRAY_OVERHEAD + field.sumOf { weighField(it) }
+      }
+
+      is CacheKey -> {
+        SIZE_OF_CACHE_KEY_OVERHEAD + field.key.commonAsUtf8ToByteArray().size
+      }
+
       else -> error("Unknown field type in Record: '$field'")
     }
   }

normalized-cache-incubating/src/commonTest/kotlin/com/apollographql/cache/normalized/RecordWeigherTest.kt

@@ -1,5 +1,6 @@
 package com.apollographql.cache.normalized
 
+import com.apollographql.apollo.api.json.JsonNumber
 import com.apollographql.cache.normalized.api.CacheKey
 import com.apollographql.cache.normalized.api.Record
 import kotlin.test.Test
@@ -13,6 +14,7 @@ class RecordWeigherTest {
     val expectedLongValue = Long.MAX_VALUE
     val expectedStringValue = "StringValue"
     val expectedBooleanValue = true
+    val expectedNumberValue = JsonNumber("10")
     val expectedCacheKey = CacheKey("foo")
     val expectedCacheKeyList = listOf(CacheKey("bar"), CacheKey("baz"))
     val expectedScalarList = listOf("scalarOne", "scalarTwo")
@@ -23,13 +25,14 @@ class RecordWeigherTest {
             "string" to expectedStringValue,
             "boolean" to expectedBooleanValue,
             "long" to expectedLongValue,
+            "number" to expectedNumberValue,
             "cacheReference" to expectedCacheKey,
             "scalarList" to expectedScalarList,
             "referenceList" to expectedCacheKeyList,
         )
     )
 
-    assertTrue(record.sizeInBytes <= 248)
-    assertTrue(record.sizeInBytes >= 242) // JS takes less space, maybe for strings?
+    assertTrue(record.sizeInBytes <= 284)
+    assertTrue(record.sizeInBytes >= 258) // JS takes less space, maybe for strings?
   }
 }