[ServiceBus] Message/ReceivedMessage Properties alignment with other languages

sdk/servicebus/azure-servicebus/CHANGELOG.md

@@ -2,6 +2,29 @@
 
 ## 7.0.0b5 (Unreleased)
 
+**New Features**
+
+* Added new properties to Message, PeekMessage and ReceivedMessage: `content_type`, `correlation_id`, `label`,
+`message_id`, `reply_to`, `reply_to_session_id` and `to`. Please refer to the docstring for further information.
+
+* Add new properties to PeekedMessaged and ReceivedMessage: `enqueued_sequence_number`, `dead_letter_error_description`,
+`dead_letter_reason`, `dead_letter_source`, `delivery_count` and `expires_at_utc`. Please refer to the docstring for further information.
+
+**Breaking Changes**
+
+* Removed/Renamed several properties and instance variables on Message (the changes applied to the inherited Message type PeekMessage and ReceivedMessage).
+  - Renamed property `user_properties` to `properties`
+      - The original instance variable `properties` which represents the AMQP properties now becomes an internal instance variable `_amqp_properties`.
+  - Removed property `enqueue_sequence_number`.
+  - Removed property `annotations`.
+  - Removed instance variable `header`.
+
+* Removed several properties and instance variables on PeekMessage and ReceivedMessage.
+  - Removed proeprty `partition_id` on both type.
+  - Removed instance variable `received_timestamp_utc` on both type.
+  - Removed property `settled` on `PeekMessage`.
+  - Removed property `expired` on `ReceivedMessage`.
+
 
 ## 7.0.0b4 (2020-07-06)
 

sdk/servicebus/azure-servicebus/azure/servicebus/_common/constants.py

@@ -3,10 +3,9 @@
 # Licensed under the MIT License. See License.txt in the project root for
 # license information.
 # -------------------------------------------------------------------------
-
 from enum import Enum
 
-from uamqp import constants
+from uamqp import constants, types
 
 VENDOR = b"com.microsoft"
 DATETIMEOFFSET_EPOCH = 621355968000000000
@@ -97,6 +96,10 @@
 _X_OPT_LOCKED_UNTIL = b'x-opt-locked-until'
 _X_OPT_LOCK_TOKEN = b'x-opt-lock-token'
 _X_OPT_SCHEDULED_ENQUEUE_TIME = b'x-opt-scheduled-enqueue-time'
+_X_OPT_DEAD_LETTER_SOURCE = b'x-opt-deadletter-source'
+
+PROPERTIES_DEAD_LETTER_REASON = b'DeadLetterReason'
+PROPERTIES_DEAD_LETTER_ERROR_DESCRIPTION = b'DeadLetterErrorDescription'
 
 
 DEAD_LETTER_QUEUE_SUFFIX = '/$DeadLetterQueue'
@@ -112,4 +115,15 @@ class SessionFilter(Enum):
     NextAvailable = 0
 
 
+ANNOTATION_SYMBOL_PARTITION_KEY = types.AMQPSymbol(_X_OPT_PARTITION_KEY)
+ANNOTATION_SYMBOL_VIA_PARTITION_KEY = types.AMQPSymbol(_X_OPT_VIA_PARTITION_KEY)
+ANNOTATION_SYMBOL_SCHEDULED_ENQUEUE_TIME = types.AMQPSymbol(_X_OPT_SCHEDULED_ENQUEUE_TIME)
+
+ANNOTATION_SYMBOL_KEY_MAP = {
+    _X_OPT_PARTITION_KEY: ANNOTATION_SYMBOL_PARTITION_KEY,
+    _X_OPT_VIA_PARTITION_KEY: ANNOTATION_SYMBOL_VIA_PARTITION_KEY,
+    _X_OPT_SCHEDULED_ENQUEUE_TIME: ANNOTATION_SYMBOL_SCHEDULED_ENQUEUE_TIME
+}
+
+
 NEXT_AVAILABLE = SessionFilter.NextAvailable