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105 changes: 105 additions & 0 deletions
105
src/main/kotlin/com/github/avrokotlin/avro4k/internal/Schemas.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,105 @@ | ||
| package com.github.avrokotlin.avro4k.internal | ||
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| import kotlinx.serialization.descriptors.SerialDescriptor | ||
| import org.apache.avro.LogicalType | ||
| import org.apache.avro.Schema | ||
|
|
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| internal val Schema.nullable: Schema | ||
| get() { | ||
| if (isNullable) return this | ||
| return if (isUnion) { | ||
| Schema.createUnion(listOf(Schema.create(Schema.Type.NULL)) + this.types) | ||
| } else { | ||
| Schema.createUnion(Schema.create(Schema.Type.NULL), this) | ||
| } | ||
| } | ||
|
|
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| internal fun Schema.asSchemaList(): List<Schema> { | ||
| if (!isUnion) return listOf(this) | ||
| return types | ||
| } | ||
|
|
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| internal fun Schema.isNamedSchema(): Boolean { | ||
| return this.type == Schema.Type.RECORD || this.type == Schema.Type.ENUM || this.type == Schema.Type.FIXED | ||
| } | ||
|
|
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| internal fun Schema.isFullNameOrAliasMatch(descriptor: SerialDescriptor): Boolean { | ||
| return isFullNameOrAliasMatch(descriptor.nonNullSerialName, descriptor::aliases) | ||
| } | ||
|
|
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| internal fun Schema.isFullNameOrAliasMatch( | ||
| fullName: String, | ||
| aliases: () -> Set<String>, | ||
| ): Boolean { | ||
| return isFullNameMatch(fullName) || aliases().any { isFullNameMatch(it) } | ||
| } | ||
|
|
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| internal fun Schema.isFullNameMatch(fullNameToMatch: String): Boolean { | ||
| return fullName == fullNameToMatch || | ||
| (type == Schema.Type.RECORD || type == Schema.Type.ENUM || type == Schema.Type.FIXED) && | ||
| aliases.any { it == fullNameToMatch } | ||
| } | ||
|
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| private val SCHEMA_PLACEHOLDER = Schema.create(Schema.Type.NULL) | ||
|
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| internal fun Schema.copy( | ||
| name: String = this.name, | ||
| doc: String? = this.doc, | ||
| namespace: String? = if (this.type == Schema.Type.RECORD || this.type == Schema.Type.ENUM || this.type == Schema.Type.FIXED) this.namespace else null, | ||
| aliases: Set<String> = if (this.type == Schema.Type.RECORD || this.type == Schema.Type.ENUM || this.type == Schema.Type.FIXED) this.aliases else emptySet(), | ||
| isError: Boolean = if (this.type == Schema.Type.RECORD) this.isError else false, | ||
| types: List<Schema> = if (this.isUnion) this.types.toList() else emptyList(), | ||
| enumSymbols: List<String> = if (this.type == Schema.Type.ENUM) this.enumSymbols.toList() else emptyList(), | ||
| fields: List<Schema.Field>? = if (this.type == Schema.Type.RECORD && this.hasFields()) this.fields.map { it.copy() } else null, | ||
| enumDefault: String? = if (this.type == Schema.Type.ENUM) this.enumDefault else null, | ||
| fixedSize: Int = if (this.type == Schema.Type.FIXED) this.fixedSize else -1, | ||
| valueType: Schema = if (this.type == Schema.Type.MAP) this.valueType else SCHEMA_PLACEHOLDER, | ||
| elementType: Schema = if (this.type == Schema.Type.ARRAY) this.elementType else SCHEMA_PLACEHOLDER, | ||
| objectProps: Map<String, Any> = this.objectProps, | ||
| additionalProps: Map<String, Any> = emptyMap(), | ||
| logicalType: LogicalType? = this.logicalType, | ||
| ): Schema { | ||
| @Suppress("WHEN_ENUM_CAN_BE_NULL_IN_JAVA") | ||
| return when (type) { | ||
| Schema.Type.RECORD -> if (hasFields()) Schema.createRecord(name, doc, namespace, isError, fields) else Schema.createRecord(name, doc, namespace, isError) | ||
| Schema.Type.ENUM -> Schema.createEnum(name, doc, namespace, enumSymbols, enumDefault) | ||
| Schema.Type.FIXED -> Schema.createFixed(name, doc, namespace, fixedSize) | ||
|
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| Schema.Type.UNION -> Schema.createUnion(types) | ||
| Schema.Type.MAP -> Schema.createMap(valueType) | ||
| Schema.Type.ARRAY -> Schema.createArray(elementType) | ||
| Schema.Type.BYTES, | ||
| Schema.Type.STRING, | ||
| Schema.Type.INT, | ||
| Schema.Type.LONG, | ||
| Schema.Type.FLOAT, | ||
| Schema.Type.DOUBLE, | ||
| Schema.Type.BOOLEAN, | ||
| Schema.Type.NULL, | ||
| -> Schema.create(type) | ||
| } | ||
| .also { newSchema -> | ||
| objectProps.forEach { (key, value) -> newSchema.addProp(key, value) } | ||
| additionalProps.forEach { (key, value) -> newSchema.addProp(key, value) } | ||
| logicalType?.addToSchema(newSchema) | ||
| aliases.forEach { newSchema.addAlias(it) } | ||
| } | ||
| } | ||
|
|
||
| internal fun Schema.Field.copy( | ||
| name: String = this.name(), | ||
| schema: Schema = this.schema(), | ||
| doc: String? = this.doc(), | ||
| defaultVal: Any? = this.defaultVal(), | ||
| order: Schema.Field.Order = this.order(), | ||
| aliases: Set<String> = this.aliases(), | ||
| objectProps: Map<String, Any> = this.objectProps, | ||
| additionalProps: Map<String, Any> = emptyMap(), | ||
| ): Schema.Field { | ||
| return Schema.Field(name, schema, doc, defaultVal, order) | ||
| .also { newSchema -> | ||
| objectProps.forEach { (key, value) -> newSchema.addProp(key, value) } | ||
| additionalProps.forEach { (key, value) -> newSchema.addProp(key, value) } | ||
| aliases.forEach { newSchema.addAlias(it) } | ||
| } | ||
| } |
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