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From twalthr <...@git.apache.org>
Subject [GitHub] flink pull request #5240: [FLINK-8240] [table] Create unified interfaces to ...
Date Thu, 25 Jan 2018 13:07:52 GMT
Github user twalthr commented on a diff in the pull request:

    https://github.com/apache/flink/pull/5240#discussion_r163836415
  
    --- Diff: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/descriptors/ConnectorDescriptor.scala
---
    @@ -0,0 +1,47 @@
    +/*
    + * Licensed to the Apache Software Foundation (ASF) under one
    + * or more contributor license agreements.  See the NOTICE file
    + * distributed with this work for additional information
    + * regarding copyright ownership.  The ASF licenses this file
    + * to you under the Apache License, Version 2.0 (the
    + * "License"); you may not use this file except in compliance
    + * with the License.  You may obtain a copy of the License at
    + *
    + *     http://www.apache.org/licenses/LICENSE-2.0
    + *
    + * Unless required by applicable law or agreed to in writing, software
    + * distributed under the License is distributed on an "AS IS" BASIS,
    + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    + * See the License for the specific language governing permissions and
    + * limitations under the License.
    + */
    +
    +package org.apache.flink.table.descriptors
    +
    +import org.apache.flink.table.descriptors.DescriptorUtils.connector
    +
    +/**
    +  * Describes a connector to an other system.
    +  *
    +  * @param tpe string identifier for the connector
    +  */
    +abstract class ConnectorDescriptor(private val tpe: String) extends Descriptor {
    +
    +  /**
    +    * Internal method for properties conversion.
    +    */
    +  final def addProperties(properties: NormalizedProperties): Unit = {
    +    properties.putString(connector("type"), tpe)
    +    val connectorProperties = new NormalizedProperties()
    +    addConnectorProperties(connectorProperties)
    +    connectorProperties.getProperties.foreach { case (k, v) =>
    --- End diff --
    
    This logic ensures that you cannot add an encoding in a connector. All properties that
are added are prefixed correctly with "connector.".


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