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• ski.gagar.vxutil
• vxutil-vertigram
• 1.0.0-alpha40
• source code
• AttachmentDeserializer.kt

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ski.gagar.vxutil.vertigram.util.json.AttachmentDeserializer.kt Maven / Gradle / Ivy

package ski.gagar.vxutil.vertigram.util.json

import com.fasterxml.jackson.core.JsonParser
import com.fasterxml.jackson.core.JsonToken
import com.fasterxml.jackson.databind.DeserializationContext
import com.fasterxml.jackson.databind.JsonDeserializer
import com.fasterxml.jackson.databind.JsonMappingException
import ski.gagar.vxutil.vertigram.types.attachments.Attachment
import ski.gagar.vxutil.vertigram.types.attachments.UrlAttachment

internal class AttachmentDeserializer : JsonDeserializer() {
    override fun deserialize(parser: JsonParser, ctxt: DeserializationContext): Attachment =
        when (parser.currentToken) {
            JsonToken.VALUE_STRING -> UrlAttachment(parser.valueAsString)
            else -> {
                throw JsonMappingException.from(parser, "attachment should be string")
            }
        }

    override fun handledType(): Class = Attachment::class.java
}