Revert "Support google-cloud-datacatalog 3.0.0 (apache#13224)" (apach…

…e#13482)

This reverts commit feb8405.

airflow/providers/google/ADDITIONAL_INFO.md

@@ -30,7 +30,7 @@ Details are covered in the UPDATING.md files for each library, but there are som
 | Library name | Previous constraints | Current constraints | |
 | --- | --- | --- | --- |
 | [``google-cloud-bigquery-datatransfer``](https://pypi.org/project/google-cloud-bigquery-datatransfer/) | ``>=0.4.0,<2.0.0`` | ``>=3.0.0,<4.0.0``  | [`UPGRADING.md`](https://github.com/googleapis/python-bigquery-datatransfer/blob/master/UPGRADING.md) |
-| [``google-cloud-datacatalog``](https://pypi.org/project/google-cloud-datacatalog/) | ``>=0.5.0,<0.8`` | ``>=3.0.0,<4.0.0``  | [`UPGRADING.md`](https://github.com/googleapis/python-datacatalog/blob/master/UPGRADING.md) |
+| [``google-cloud-datacatalog``](https://pypi.org/project/google-cloud-datacatalog/) | ``>=0.5.0,<0.8`` | ``>=1.0.0,<2.0.0``  | [`UPGRADING.md`](https://github.com/googleapis/python-datacatalog/blob/master/UPGRADING.md) |
 | [``google-cloud-os-login``](https://pypi.org/project/google-cloud-os-login/) | ``>=1.0.0,<2.0.0`` | ``>=2.0.0,<3.0.0``  | [`UPGRADING.md`](https://github.com/googleapis/python-oslogin/blob/master/UPGRADING.md) |
 | [``google-cloud-pubsub``](https://pypi.org/project/google-cloud-pubsub/) | ``>=1.0.0,<2.0.0`` | ``>=2.0.0,<3.0.0``  | [`UPGRADING.md`](https://github.com/googleapis/python-pubsub/blob/master/UPGRADING.md) |
 | [``google-cloud-kms``](https://pypi.org/project/google-cloud-os-login/) | ``>=1.2.1,<2.0.0`` | ``>=2.0.0,<3.0.0``  | [`UPGRADING.md`](https://github.com/googleapis/python-kms/blob/master/UPGRADING.md) |

airflow/providers/google/cloud/example_dags/example_datacatalog.py

@@ -19,7 +19,7 @@
 """
 Example Airflow DAG that interacts with Google Data Catalog service
 """
-from google.cloud.datacatalog_v1beta1 import FieldType, TagField, TagTemplateField
+from google.cloud.datacatalog_v1beta1.proto.tags_pb2 import FieldType, TagField, TagTemplateField
 
 from airflow import models
 from airflow.operators.bash_operator import BashOperator
@@ -91,7 +91,7 @@
         entry_id=ENTRY_ID,
         entry={
             "display_name": "Wizard",
-            "type_": "FILESET",
+            "type": "FILESET",
             "gcs_fileset_spec": {"file_patterns": ["gs://test-datacatalog/**"]},
         },
     )
@@ -144,7 +144,7 @@
             "display_name": "Awesome Tag Template",
             "fields": {
                 FIELD_NAME_1: TagTemplateField(
-                    display_name="first-field", type_=dict(primitive_type="STRING")
+                    display_name="first-field", type=FieldType(primitive_type="STRING")
                 )
             },
         },
@@ -172,7 +172,7 @@
         tag_template=TEMPLATE_ID,
         tag_template_field_id=FIELD_NAME_2,
         tag_template_field=TagTemplateField(
-            display_name="second-field", type_=FieldType(primitive_type="STRING")
+            display_name="second-field", type=FieldType(primitive_type="STRING")
         ),
     )
     # [END howto_operator_gcp_datacatalog_create_tag_template_field]
@@ -305,7 +305,7 @@
     # [START howto_operator_gcp_datacatalog_lookup_entry_result]
     lookup_entry_result = BashOperator(
         task_id="lookup_entry_result",
-        bash_command="echo \"{{ task_instance.xcom_pull('lookup_entry')['display_name'] }}\"",
+        bash_command="echo \"{{ task_instance.xcom_pull('lookup_entry')['displayName'] }}\"",
     )
     # [END howto_operator_gcp_datacatalog_lookup_entry_result]