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https://issues.apache.org/jira/browse/FLINK-6393?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15988108#comment-15988108
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ASF GitHub Bot commented on FLINK-6393:
---------------------------------------
Github user gallenvara commented on a diff in the pull request:
https://github.com/apache/flink/pull/3788#discussion_r113842976
--- Diff:
flink-libraries/flink-gelly/src/main/java/org/apache/flink/graph/generator/EvenlyGraph.java
---
@@ -0,0 +1,145 @@
+/*
+ * 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.graph.generator;
+
+import org.apache.flink.api.common.functions.FlatMapFunction;
+import org.apache.flink.api.java.DataSet;
+import org.apache.flink.api.java.ExecutionEnvironment;
+import
org.apache.flink.api.java.functions.FunctionAnnotation.ForwardedFields;
+import org.apache.flink.graph.Edge;
+import org.apache.flink.graph.Graph;
+import org.apache.flink.graph.Vertex;
+import org.apache.flink.types.LongValue;
+import org.apache.flink.types.NullValue;
+import org.apache.flink.util.Collector;
+import org.apache.flink.util.LongValueSequenceIterator;
+import org.apache.flink.util.Preconditions;
+
+/**
+ * Evenly graph means every {@link Vertex} in the {@link Graph} has the
same degree.
+ * when vertex degree is 0, {@link EmptyGraph} will be generated.
+ * when vertex degree is vertex count - 1, {@link CompleteGraph} will be
generated.
--- End diff --
`vertex count - 1` is confused. Can you change the description more clearly？
> Add Evenly Graph Generator to Flink Gelly
> -----------------------------------------
>
> Key: FLINK-6393
> URL: https://issues.apache.org/jira/browse/FLINK-6393
> Project: Flink
> Issue Type: New Feature
> Components: Gelly
> Reporter: FlorianFan
> Assignee: FlorianFan
> Priority: Minor
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> Evenly graph means every vertex in the graph has the same degree, so the
> graph can be treated as evenly due to all the edges in the graph are
> distributed evenly. when vertex degree is 0, an empty graph will be
> generated. when vertex degree is vertex count - 1, complete graph will be
> generated.
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