[GitHub] [james-project] tungtv202 commented on a change in pull request #351: JAMES-3520 Implement JMAP MDN draft - Parser

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tungtv202 commented on a change in pull request #351:
URL: https://github.com/apache/james-project/pull/351#discussion_r605715059



##########
File path: server/protocols/jmap-rfc-8621/src/main/scala/org/apache/james/jmap/mail/MDNParse.scala
##########
@@ -0,0 +1,166 @@
+/****************************************************************
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+ * distributed with this work for additional information        *
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+ * to you under the Apache License, Version 2.0 (the            *
+ * "License"); you may not use this file except in compliance   *
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+ * specific language governing permissions and limitations      *
+ * under the License.                                           *
+ ****************************************************************/
+
+package org.apache.james.jmap.mail
+
+import eu.timepit.refined.api.Refined
+import eu.timepit.refined.collection.NonEmpty
+import org.apache.james.jmap.core.AccountId
+import org.apache.james.jmap.mail.MDNParse._
+import org.apache.james.jmap.method.WithAccountId
+import org.apache.james.mdn.MDN
+import org.apache.james.mdn.fields.{Disposition => JavaDisposition}
+import org.apache.james.mime4j.dom.Message
+
+import scala.jdk.CollectionConverters._
+import scala.jdk.OptionConverters._
+
+object MDNParse {
+  type UnparsedBlobIdConstraint = NonEmpty
+  type UnparsedBlobId = String Refined UnparsedBlobIdConstraint
+}
+
+case class BlobIds(value: Seq[UnparsedBlobId])
+
+case class RequestTooLargeException(description: String) extends Exception
+
+case object MDNParseRequest {
+  val MAXIMUM_NUMBER_OF_BLOB_IDS: 16 = 16
+}
+
+case class MDNParseRequest(accountId: AccountId,
+                           blobIds: BlobIds) extends WithAccountId {
+
+  import MDNParseRequest._
+
+  def validate: Either[RequestTooLargeException, MDNParseRequest] = {
+    if (blobIds.value.length > MAXIMUM_NUMBER_OF_BLOB_IDS) {
+      Left(RequestTooLargeException("The number of ids requested by the client exceeds the maximum number the server is willing to process in a single method call"))
+    } else {
+      scala.Right(this)
+    }
+  }
+}
+
+case class MDNNotFound(value: Set[UnparsedBlobId]) {
+  def merge(other: MDNNotFound): MDNNotFound = MDNNotFound(this.value ++ other.value)
+}
+
+object MDNNotParsable {
+  def merge(notParsable1: MDNNotParsable, notParsable2: MDNNotParsable): MDNNotParsable = MDNNotParsable(notParsable1.value ++ notParsable2.value)
+}
+
+case class MDNNotParsable(value: Set[UnparsedBlobId]) {
+  def merge(other: MDNNotParsable): MDNNotParsable = MDNNotParsable(this.value ++ other.value)
+}
+
+object MDNDisposition {
+  def fromJava(javaDisposition: JavaDisposition): MDNDisposition =
+    MDNDisposition(actionMode = javaDisposition.getActionMode.getValue,
+      sendingMode = javaDisposition.getSendingMode.getValue,
+      `type` = javaDisposition.getType.getValue)
+}
+
+case class MDNDisposition(actionMode: String,
+                          sendingMode: String,
+                          `type`: String)
+
+case class ForEmailIdField(value: String) extends AnyVal
+
+case class SubjectField(value: String) extends AnyVal
+
+case class TextBodyField(value: String) extends AnyVal
+
+case class ReportUAField(value: String) extends AnyVal
+
+case class FinalRecipientField(value: String) extends AnyVal
+
+case class OriginalMessageIdField(value: String) extends AnyVal
+
+case class ErrorField(value: String) extends AnyVal
+
+object IncludeOriginalMessageField {
+  def default: IncludeOriginalMessageField = IncludeOriginalMessageField(false)
+}
+
+case class IncludeOriginalMessageField(value: Boolean) extends AnyVal
+
+object MDNParsed {
+  def fromMDN(mdn: MDN, message: Message): MDNParsed = {
+    val report = mdn.getReport
+    MDNParsed(forEmailId = None,
+      subject = Option(message.getSubject).map(SubjectField),
+      textBody = Some(TextBodyField(mdn.getHumanReadableText)),
+      reportingUA = report.getReportingUserAgentField
+        .map(userAgent => ReportUAField(userAgent.fieldValue()))
+        .toScala,
+      finalRecipient = FinalRecipientField(report.getFinalRecipientField.fieldValue()),
+      originalMessageId = report.getOriginalMessageIdField
+        .map(originalMessageId => OriginalMessageIdField(originalMessageId.getOriginalMessageId))
+        .toScala,
+      includeOriginalMessage = IncludeOriginalMessageField(mdn.isIncludeOriginalMessage),
+      disposition = MDNDisposition.fromJava(report.getDispositionField),
+      error = Option(report.getErrorFields.asScala
+        .map(error => ErrorField(error.getText.formatted()))
+        .toSeq)
+        .filter(error => error.nonEmpty),
+      extensionFields = Option(report.getExtensionFields.asScala
+        .map(extension => (extension.getFieldName, extension.getRawValue))
+        .toMap).filter(_.nonEmpty))

Review comment:
       Yes, It has been formated with `Ctrl + L` 




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