[FLINK-7778] [build] Shade ZooKeeper dependency (part 2)

This closes #4927


Project: http://git-wip-us.apache.org/repos/asf/flink/repo
Commit: http://git-wip-us.apache.org/repos/asf/flink/commit/d368a07a
Tree: http://git-wip-us.apache.org/repos/asf/flink/tree/d368a07a
Diff: http://git-wip-us.apache.org/repos/asf/flink/diff/d368a07a

Branch: refs/heads/master
Commit: d368a07a2146c45a7f994cab0bb55524432a843d
Parents: 4d02823
Author: zentol <[email protected]>
Authored: Tue Oct 31 11:26:48 2017 +0100
Committer: Stephan Ewen <[email protected]>
Committed: Thu Nov 2 16:51:25 2017 +0100

----------------------------------------------------------------------
 .../store/ZooKeeperMesosWorkerStore.java        | 11 ++-
 flink-runtime/pom.xml                           | 27 +++---
 .../runtime/zookeeper/ZookeeperAccess.java      | 66 +++++++++++++++
 flink-shaded-curator-recipes/pom.xml            | 88 ++++++++++++++++++++
 flink-shaded-hadoop/pom.xml                     |  5 --
 pom.xml                                         |  1 +
 tools/travis_mvn_watchdog.sh                    | 16 ++++
 7 files changed, 188 insertions(+), 26 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/flink/blob/d368a07a/flink-mesos/src/main/java/org/apache/flink/mesos/runtime/clusterframework/store/ZooKeeperMesosWorkerStore.java
----------------------------------------------------------------------
diff --git 
a/flink-mesos/src/main/java/org/apache/flink/mesos/runtime/clusterframework/store/ZooKeeperMesosWorkerStore.java
 
b/flink-mesos/src/main/java/org/apache/flink/mesos/runtime/clusterframework/store/ZooKeeperMesosWorkerStore.java
index 92e4416..738f99e 100644
--- 
a/flink-mesos/src/main/java/org/apache/flink/mesos/runtime/clusterframework/store/ZooKeeperMesosWorkerStore.java
+++ 
b/flink-mesos/src/main/java/org/apache/flink/mesos/runtime/clusterframework/store/ZooKeeperMesosWorkerStore.java
@@ -25,17 +25,16 @@ import 
org.apache.flink.runtime.zookeeper.ZooKeeperSharedCount;
 import org.apache.flink.runtime.zookeeper.ZooKeeperSharedValue;
 import org.apache.flink.runtime.zookeeper.ZooKeeperStateHandleStore;
 import org.apache.flink.runtime.zookeeper.ZooKeeperVersionedValue;
+import org.apache.flink.runtime.zookeeper.ZookeeperAccess;
 import org.apache.flink.util.FlinkException;
 
 import org.apache.mesos.Protos;
-import org.apache.zookeeper.KeeperException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Collections;
-import java.util.ConcurrentModificationException;
 import java.util.List;
 
 import scala.Option;
@@ -218,15 +217,15 @@ public class ZooKeeperMesosWorkerStore implements 
MesosWorkerStore {
                                try {
                                        workersInZooKeeper.addAndLock(path, 
worker);
                                        LOG.debug("Added {} in ZooKeeper.", 
worker);
-                               } catch (KeeperException.NodeExistsException 
ex) {
-                                       throw new 
ConcurrentModificationException("ZooKeeper unexpectedly modified", ex);
+                               } catch (Exception ex) {
+                                       throw 
ZookeeperAccess.wrapIfZooKeeperNodeExistsException(ex);
                                }
                        } else {
                                try {
                                        workersInZooKeeper.replace(path, 
currentVersion, worker);
                                        LOG.debug("Updated {} in ZooKeeper.", 
worker);
-                               } catch (KeeperException.NoNodeException ex) {
-                                       throw new 
ConcurrentModificationException("ZooKeeper unexpectedly modified", ex);
+                               } catch (Exception ex) {
+                                       throw 
ZookeeperAccess.wrapIfZooKeeperNoNodeException(ex);
                                }
                        }
                }

http://git-wip-us.apache.org/repos/asf/flink/blob/d368a07a/flink-runtime/pom.xml
----------------------------------------------------------------------
diff --git a/flink-runtime/pom.xml b/flink-runtime/pom.xml
index 46990a9..481de6d 100644
--- a/flink-runtime/pom.xml
+++ b/flink-runtime/pom.xml
@@ -178,17 +178,9 @@ under the License.
                </dependency>
 
                <dependency>
-                       <groupId>org.apache.curator</groupId>
-                       <artifactId>curator-recipes</artifactId>
-                       <version>${curator.version}</version>
-                       <exclusions>
-                               <!-- curator shades guava, but still has a 
dependency on it. -->
-                               <!-- We can safely exclude Guava here -->
-                               <exclusion>
-                                       <groupId>com.google.guava</groupId>
-                                       <artifactId>guava</artifactId>
-                               </exclusion>
-                       </exclusions>
+                       <groupId>org.apache.flink</groupId>
+                       <artifactId>flink-shaded-curator-recipes</artifactId>
+                       <version>${project.version}</version>
                </dependency>
 
                <!-- test dependencies -->
@@ -448,7 +440,6 @@ under the License.
                                                                        
<include>com.typesafe.akka:akka-remote_*</include>
                                                                        
<include>io.netty:netty</include>
                                                                        
<include>org.uncommons.maths:uncommons-maths</include>
-                                                                       
<include>org.apache.curator:*</include>
                                                                        
<include>org.apache.zookeeper:*</include>
                                                                </includes>
                                                        </artifactSet>
@@ -463,16 +454,22 @@ under the License.
                                                                </relocation>
                                                                <relocation>
                                                                        
<pattern>org.apache.curator</pattern>
-                                                                       
<shadedPattern>org.apache.flink.shaded.org.apache.curator</shadedPattern>
+                                                                       
<shadedPattern>org.apache.flink.shaded.curator.org.apache.curator</shadedPattern>
+                                                                       
<excludes>
+                                                                               
<!-- Do not relocate curator-test. This leads to problems for downstream
+                                                                               
        users of runtime test classes that make use of it as the relocated
+                                                                               
        dependency is not included in the test-jar.-->
+                                                                               
<exclude>org.apache.curator.test.*</exclude>
+                                                                       
</excludes>
                                                                </relocation>
                                                                <relocation>
                                                                        
<pattern>org.apache.zookeeper</pattern>
-                                                                       
<shadedPattern>org.apache.flink.shaded.org.apache.zookeeper</shadedPattern>
+                                                                       
<shadedPattern>org.apache.flink.shaded.zookeeper.org.apache.zookeeper</shadedPattern>
                                                                </relocation>
                                                                <!-- jute is 
already shaded into the ZooKeeper jar -->
                                                                <relocation>
                                                                        
<pattern>org.apache.jute</pattern>
-                                                                       
<shadedPattern>org.apache.flink.shaded.org.apache.zookeeper.jute</shadedPattern>
+                                                                       
<shadedPattern>org.apache.flink.shaded.zookeeper.org.apache.zookeeper.jute</shadedPattern>
                                                                </relocation>
                                                        </relocations>
                                                        <filters>

http://git-wip-us.apache.org/repos/asf/flink/blob/d368a07a/flink-runtime/src/main/java/org/apache/flink/runtime/zookeeper/ZookeeperAccess.java
----------------------------------------------------------------------
diff --git 
a/flink-runtime/src/main/java/org/apache/flink/runtime/zookeeper/ZookeeperAccess.java
 
b/flink-runtime/src/main/java/org/apache/flink/runtime/zookeeper/ZookeeperAccess.java
new file mode 100644
index 0000000..2c6160a
--- /dev/null
+++ 
b/flink-runtime/src/main/java/org/apache/flink/runtime/zookeeper/ZookeeperAccess.java
@@ -0,0 +1,66 @@
+/*
+ * 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.zookeeper.KeeperException;
+
+import java.util.ConcurrentModificationException;
+
+/**
+ * Utility class providing access to relocated zookeeper classes.
+ *
+ * <p>This class is necessary as flink-runtime relocates its ZooKeeper 
dependency.
+ * Other modules may still depend on this dependency but will encounter a 
ClassNotFoundException
+ * on access as they don't apply the relocation pattern of flink-runtime.
+ */
+public final class ZookeeperAccess {
+       
+       private ZookeeperAccess(){
+       }
+
+       /**
+        * Wraps and returns the given exception in a {@link 
ConcurrentModificationException} if it is a
+        * {@link org.apache.zookeeper.KeeperException.NodeExistsException}. 
Otherwise the
+        * given exception is returned.
+        *
+        * @param ex exception to wrap
+        * @return wrapping ConcurrentModificationException if it is a 
NodeExistsException, otherwise the given exception
+        */
+       public static Exception wrapIfZooKeeperNodeExistsException(Exception 
ex) {
+               if (ex instanceof KeeperException.NodeExistsException) {
+                       return new ConcurrentModificationException("ZooKeeper 
unexpectedly modified", ex);
+               }
+               return ex;
+       }
+
+       /**
+        * Wraps and returns the given exception in a {@link 
ConcurrentModificationException} if it is a
+        * {@link org.apache.zookeeper.KeeperException.NoNodeException}. 
Otherwise the
+        * given exception is returned.
+        *
+        * @param ex exception to wrap
+        * @return wrapping ConcurrentModificationException if it is a 
NoNodeException, otherwise the given exception
+        */
+       public static Exception wrapIfZooKeeperNoNodeException(Exception ex) {
+               if (ex instanceof KeeperException.NoNodeException) {
+                       return new ConcurrentModificationException("ZooKeeper 
unexpectedly modified", ex);
+               }
+               return ex;
+       }
+}

http://git-wip-us.apache.org/repos/asf/flink/blob/d368a07a/flink-shaded-curator-recipes/pom.xml
----------------------------------------------------------------------
diff --git a/flink-shaded-curator-recipes/pom.xml 
b/flink-shaded-curator-recipes/pom.xml
new file mode 100644
index 0000000..06d3821
--- /dev/null
+++ b/flink-shaded-curator-recipes/pom.xml
@@ -0,0 +1,88 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+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.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0"; 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
+       xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/maven-v4_0_0.xsd";>
+
+       <modelVersion>4.0.0</modelVersion>
+
+       <parent>
+               <groupId>org.apache.flink</groupId>
+               <artifactId>flink-parent</artifactId>
+               <version>1.4-SNAPSHOT</version>
+               <relativePath>..</relativePath>
+       </parent>
+
+       <artifactId>flink-shaded-curator-recipes</artifactId>
+       <name>flink-shaded-curator-recipes</name>
+
+       <packaging>jar</packaging>
+
+
+       <dependencies>
+               <dependency>
+                       <groupId>org.apache.curator</groupId>
+                       <artifactId>curator-recipes</artifactId>
+                       <version>${curator.version}</version>
+               </dependency>
+       </dependencies>
+
+       <build>
+               <plugins>
+                       <plugin>
+                               <groupId>org.apache.maven.plugins</groupId>
+                               <artifactId>maven-shade-plugin</artifactId>
+                               <executions>
+                                       <execution>
+                                               <id>shade-flink</id>
+                                               <phase>package</phase>
+                                               <goals>
+                                                       <goal>shade</goal>
+                                               </goals>
+                                               <configuration>
+                                                       <artifactSet>
+                                                               <includes>
+                                                                       
<include>com.google.guava:guava</include>
+                                                                       
<include>org.apache.curator:*</include>
+                                                               </includes>
+                                                       </artifactSet>
+                                                       <filters>
+                                                               <filter>
+                                                                       
<artifact>com.google.guava:guava</artifact>
+                                                                       <!-- 
Shade guava classes that are not included by curator -->
+                                                                       
<includes>
+                                                                               
<include>com/google/common/base/Function.class</include>
+                                                                               
<include>com/google/common/base/Predicate.class</include>
+                                                                               
<include>com/google/common/reflect/TypeToken.class</include>
+                                                                       
</includes>
+                                                               </filter>
+                                                       </filters>
+                                                       <relocations>
+                                                               <relocation>
+                                                                       
<pattern>com.google.common</pattern>
+                                                                       
<shadedPattern>org.apache.flink.curator.shaded.com.google.common</shadedPattern>
+                                                               </relocation>
+                                                       </relocations>
+                                               </configuration>
+                                       </execution>
+                               </executions>
+                       </plugin>
+               </plugins>
+       </build>
+</project>

http://git-wip-us.apache.org/repos/asf/flink/blob/d368a07a/flink-shaded-hadoop/pom.xml
----------------------------------------------------------------------
diff --git a/flink-shaded-hadoop/pom.xml b/flink-shaded-hadoop/pom.xml
index f4b0816..ba90fc9 100644
--- a/flink-shaded-hadoop/pom.xml
+++ b/flink-shaded-hadoop/pom.xml
@@ -53,11 +53,6 @@ under the License.
                        <scope>provided</scope>
                </dependency>
                <dependency>
-                       <groupId>org.apache.zookeeper</groupId>
-                       <artifactId>zookeeper</artifactId>
-                       <scope>provided</scope>
-               </dependency>
-               <dependency>
                        <groupId>org.apache.avro</groupId>
                        <artifactId>avro</artifactId>
                        <scope>provided</scope>

http://git-wip-us.apache.org/repos/asf/flink/blob/d368a07a/pom.xml
----------------------------------------------------------------------
diff --git a/pom.xml b/pom.xml
index a5f99f7..faddab4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -54,6 +54,7 @@ under the License.
                <module>tools/force-shading</module>
                <module>flink-annotations</module>
                <module>flink-shaded-hadoop</module>
+               <module>flink-shaded-curator-recipes</module>
                <module>flink-core</module>
                <module>flink-java</module>
                <module>flink-java8</module>

http://git-wip-us.apache.org/repos/asf/flink/blob/d368a07a/tools/travis_mvn_watchdog.sh
----------------------------------------------------------------------
diff --git a/tools/travis_mvn_watchdog.sh b/tools/travis_mvn_watchdog.sh
index b7e3709..978bc9f 100755
--- a/tools/travis_mvn_watchdog.sh
+++ b/tools/travis_mvn_watchdog.sh
@@ -325,6 +325,22 @@ check_shaded_artifacts() {
                return 1
        fi
 
+       ZOOKEEPER=`cat allClasses | grep '^org/apache/zookeeper' | wc -l`
+       if [ "$ZOOKEEPER" != "0" ]; then
+               echo 
"=============================================================================="
+               echo "Detected '$ZOOKEEPER' unshaded org.apache.zookeeper 
classes in fat jar"
+               echo 
"=============================================================================="
+               return 1
+       fi
+
+       CURATOR=`cat allClasses | grep '^org/apache/curator' | wc -l`
+       if [ "$CURATOR" != "0" ]; then
+               echo 
"=============================================================================="
+               echo "Detected '$CURATOR' unshaded org.apache.curator classes 
in fat jar"
+               echo 
"=============================================================================="
+               return 1
+       fi
+
        FLINK_PYTHON=`cat allClasses | grep '^org/apache/flink/python' | wc -l`
        if [ "$FLINK_PYTHON" != "0" ]; then
                echo 
"=============================================================================="

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