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Date: Mon, 23 Jan 2017 06:19:26 +0000 (UTC)
From: "ASF GitHub Bot (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (FLINK-5508) Remove Mesos dynamic class loading
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archived-at: Mon, 23 Jan 2017 06:19:31 -0000


    [ https://issues.apache.org/jira/browse/FLINK-5508?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15833949#comment-15833949 ] 

ASF GitHub Bot commented on FLINK-5508:
---------------------------------------

Github user tzulitai commented on a diff in the pull request:

    https://github.com/apache/flink/pull/3157#discussion_r97256203
  
    --- Diff: flink-runtime/src/main/java/org/apache/flink/runtime/zookeeper/ZooKeeperVersionedValue.java ---
    @@ -0,0 +1,43 @@
    +/*
    + * 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.runtime.zookeeper;
    +
    +import org.apache.curator.framework.recipes.shared.VersionedValue;
    +import org.apache.flink.util.Preconditions;
    +
    +/**
    + * Wrapper class for a {@link VersionedValue} so that we don't expose a curator dependency in our
    + * internal APIs. Such an exposure is problematic due to the relocation of curator.
    + */
    +public class ZooKeeperVersionedValue<T> {
    +
    +	private final VersionedValue<T> versionedValue;
    +
    +	public ZooKeeperVersionedValue(VersionedValue<T> versionedValue) {
    +		this.versionedValue = Preconditions.checkNotNull(versionedValue);
    +	}
    +
    +	VersionedValue<T> getVersionedValue() {
    --- End diff --
    
    nitpick: I would place the public methods before any other package-private / private access methods.


> Remove Mesos dynamic class loading
> ----------------------------------
>
>                 Key: FLINK-5508
>                 URL: https://issues.apache.org/jira/browse/FLINK-5508
>             Project: Flink
>          Issue Type: Improvement
>          Components: Mesos
>    Affects Versions: 1.2.0, 1.3.0
>            Reporter: Till Rohrmann
>            Assignee: Till Rohrmann
>            Priority: Minor
>             Fix For: 1.2.0, 1.3.0
>
>
> Mesos uses dynamic class loading in order to load the {{ZooKeeperStateHandleStore}} and the {{CuratorFramework}} class. This can be replaced by a compile time dependency.


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