如何使用Java EWS API搜索iCalUid的Exchange約會？

Question

我正在使用Java EWS庫通過iCalUid搜索用戶日歷中的iCalUid （示例iCalUid我有： 040000008200E00074C5B7101A82E00800000000F66E2C0D59A9D001000000000000000010000000F7A6AACB779B00429164F39AE6DD6BB9 ）。 這是我的Scala代碼：

import microsoft.exchange.webservices.data._

import java.net.URI
import java.util.Date

val exchange = {
  val service = new ExchangeService(ExchangeVersion.Exchange2010_SP2)
  service.setUrl(new URI(host))
  service.setCredentials(new WebCredentials(user, pass))
  service
}

def calendarFolderFor(email: String) = new FolderId(WellKnownFolderName.Calendar, Mailbox.getMailboxFromString(email))

def findMatchingAppointments(iCalUid: String, email: String) = {
  val searchFilter = new SearchFilter.IsEqualTo(AppointmentSchema.ICalUid, iCalUid)
  exchange.findItems(calendarFolderFor(email), searchFilter, new ItemView(1)).getItems
}

上面的代碼拋出了這個錯誤：

microsoft.exchange.webservices.data.ServiceResponseException: The property can not be used with this type of restriction.
  at microsoft.exchange.webservices.data.ServiceResponse.internalThrowIfNecessary(ServiceResponse.java:262) ~[ews-java-api-1.3-SNAPSHOT.jar:na]
  at microsoft.exchange.webservices.data.ServiceResponse.throwIfNecessary(ServiceResponse.java:251) ~[ews-java-api-1.3-SNAPSHOT.jar:na]
  at microsoft.exchange.webservices.data.MultiResponseServiceRequest.execute(MultiResponseServiceRequest.java:146) ~[ews-java-api-1.3-SNAPSHOT.jar:na]
  at microsoft.exchange.webservices.data.ExchangeService.findItems(ExchangeService.java:807) ~[ews-java-api-1.3-SNAPSHOT.jar:na]
  at microsoft.exchange.webservices.data.ExchangeService.findItems(ExchangeService.java:851) ~[ews-java-api-1.3-SNAPSHOT.jar:na]

然后我嘗試調整此線程中的代碼：

def findMatchingAppointments(iCalUid: String, email: String) = {
  import org.apache.commons.codec.binary.{Hex, Base64}
  val searchFilter = new SearchFilter.IsEqualTo(
    new ExtendedPropertyDefinition(DefaultExtendedPropertySet.Appointment, 0x03, MapiPropertyType.Binary),
    Base64.encodeBase64String(Hex.decodeHex(iCalUid.toCharArray))
  )
  val view = new ItemView(1)
  view.setPropertySet(new PropertySet(BasePropertySet.FirstClassProperties, AppointmentSchema.ICalUid))        
  exchange.findItems(calendarFolderFor(email), searchFilter, view).getItems
}

但是，現在它不會拋出異常，但它也沒有找到約會。 我知道約會存在是因為我強迫並​​使用這段代碼找到約會：

def bruteForceFind(start: Date, end: Date, iCalUid: String, email: String) = {
  val view = new CalendarView(start, end, 100)
  exchange.findAppointments(calendarFolderFor(email), view).getItems
  val allAppointments = exchange.findAppointments(calendarFolderFor(email), view).getItems
  allAppointments.filter(_.getICalUid == iCalUid)
}

我究竟做錯了什么？ 如何在給定iCalUid的情況下搜索用戶的約會？ 使用Java / Scala代碼也沒問題。

Answer 1

顯然，會議和約會之間存在差異。 替換此行：

new ExtendedPropertyDefinition(DefaultExtendedPropertySet.Appointment, 0x03, MapiPropertyType.Binary),

同

new ExtendedPropertyDefinition(DefaultExtendedPropertySet.Meeting, 0x03, MapiPropertyType.Binary)

作品。