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fixes #1270
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| <?xml version="1.0" encoding="UTF-8"?> | ||
| <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/xsd/maven-4.0.0.xsd"> | ||
|
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| <modelVersion>4.0.0</modelVersion> | ||
|
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| <parent> | ||
| <artifactId>gradoop-examples</artifactId> | ||
| <groupId>org.gradoop</groupId> | ||
| <version>0.5.0-SNAPSHOT</version> | ||
| </parent> | ||
|
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| <artifactId>gradoop-examples-operators</artifactId> | ||
| <packaging>jar</packaging> | ||
|
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| <name>Gradoop Examples Operators</name> | ||
| <description>Contains examples for a subset of Gradoop operators.</description> | ||
|
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|
|
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| <dependencies> | ||
| <dependency> | ||
| <groupId>org.gradoop</groupId> | ||
| <artifactId>gradoop-flink</artifactId> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.gradoop</groupId> | ||
| <artifactId>gradoop-common</artifactId> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.gradoop</groupId> | ||
| <artifactId>gradoop-data-integration</artifactId> | ||
| </dependency> | ||
| </dependencies> | ||
|
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|
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| <build> | ||
| <plugins> | ||
| <plugin> | ||
| <groupId>org.apache.maven.plugins</groupId> | ||
| <artifactId>maven-checkstyle-plugin</artifactId> | ||
| </plugin> | ||
| <plugin> | ||
| <groupId>com.github.spotbugs</groupId> | ||
| <artifactId>spotbugs-maven-plugin</artifactId> | ||
| </plugin> | ||
| <plugin> | ||
| <groupId>org.apache.maven.plugins</groupId> | ||
| <artifactId>maven-shade-plugin</artifactId> | ||
| <executions> | ||
| <execution> | ||
| <phase>package</phase> | ||
| <goals> | ||
| <goal>shade</goal> | ||
| </goals> | ||
| <configuration> | ||
| <minimizeJar>true</minimizeJar> | ||
| <artifactSet> | ||
| <includes> | ||
| <!-- gradoop dependencies --> | ||
| <include>org.gradoop:gradoop-flink</include> | ||
| <include>org.gradoop:gradoop-common</include> | ||
| <include>org.gradoop:gradoop-data-integration</include> | ||
| <!-- libs that are not provided by flink binary --> | ||
| <include>org.apache.flink:flink-gelly_2.11</include> | ||
| <include>org.apache.flink:flink-java</include> | ||
| <!-- others --> | ||
| <include>org.apache.hbase:hbase-common</include> | ||
| <include>com.github.s1ck:gdl</include> | ||
| <include>org.antlr:antlr4-runtime</include> | ||
| <include>me.lemire.integercompression:*</include> | ||
| <!-- capf example dependencies --> | ||
| <include>org.opencypher:*</include> | ||
| <include>org.apache.flink:flink-table_2.11</include> | ||
| <include>org.parboiled:parboiled-scala_2.11</include> | ||
| <include>com.lihaoyi:ujson_2.11</include> | ||
| <include>com.lihaoyi:upickle_2.11</include> | ||
| <include>org.typelevel:cats-kernel_2.11</include> | ||
| <include>org.typelevel:cats-core_2.11</include> | ||
| <include>org.atnos:eff_2.11</include> | ||
| <include>org.parboiled:*</include> | ||
| </includes> | ||
| </artifactSet> | ||
| </configuration> | ||
| </execution> | ||
| </executions> | ||
| </plugin> | ||
| </plugins> | ||
| </build> | ||
| </project> |
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68 changes: 68 additions & 0 deletions
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...doop-examples-operators/src/main/java/org/gradoop/examples/common/SocialNetworkGraph.java
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| /* | ||
| * Copyright © 2014 - 2019 Leipzig University (Database Research Group) | ||
| * | ||
| * Licensed 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.gradoop.examples.common; | ||
|
|
||
| /** | ||
| * Class to provide a example graph used by gradoop examples. | ||
| */ | ||
| public class SocialNetworkGraph { | ||
|
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| /** | ||
| * Private Constructor | ||
| */ | ||
| private SocialNetworkGraph() { } | ||
|
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| /** | ||
| * Returns the SNA Graph as GDL String. | ||
| * | ||
| * @return gdl string of sna graph | ||
| */ | ||
| public static String getGraphGDLString() { | ||
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| return | ||
| "db[" + | ||
| "(databases:tag {name:\"Databases\"})" + | ||
| "(graphs:Tag {name:\"Graphs\"})" + | ||
| "(hadoop:Tag {name:\"Hadoop\"})" + | ||
| "(gdbs:Forum {title:\"Graph Databases\"})" + | ||
| "(gps:Forum {title:\"Graph Processing\"})" + | ||
| "(alice:Person {name:\"Alice\", gender:\"f\", city:\"Leipzig\", birthday:20})" + | ||
| "(bob:Person {name:\"Bob\", gender:\"m\", city:\"Leipzig\", birthday:30})" + | ||
| "(carol:Person {name:\"Carol\", gender:\"f\", city:\"Dresden\", birthday:30})" + | ||
| "(dave:Person {name:\"Dave\", gender:\"m\", city:\"Dresden\", birthday:40})" + | ||
| "(eve:Person {name:\"Eve\", gender:\"f\", city:\"Dresden\", speaks:\"English\", birthday:35})" + | ||
| "(frank:Person {name:\"Frank\", gender:\"m\", city:\"Berlin\", locIP:\"127.0.0.1\", birthday:35})" + | ||
| "" + | ||
| "(eve)-[:hasInterest]->(databases)" + | ||
| "(alice)-[:hasInterest]->(databases)" + | ||
| "(frank)-[:hasInterest]->(hadoop)" + | ||
| "(dave)-[:hasInterest]->(hadoop)" + | ||
| "(gdbs)-[:hasModerator]->(alice)" + | ||
| "(gdbs)-[:hasMember]->(alice)" + | ||
| "(gdbs)-[:hasMember]->(bob)" + | ||
| "(gps)-[:hasModerator {since:2013}]->(dave)" + | ||
| "(gps)-[:hasMember]->(dave)" + | ||
| "(gps)-[:hasMember]->(carol)-[ckd]->(dave)" + | ||
| "(databases)<-[ghtd:hasTag]-(gdbs)-[ghtg1:hasTag]->(graphs)<-[ghtg2:hasTag]-(gps)-[ghth:hasTag]->(hadoop)" + | ||
| "(eve)-[eka:knows {since:2013}]->(alice)-[akb:knows {since:2014}]->(bob)" + | ||
| "(eve)-[ekb:knows {since:2015}]->(bob)-[bka:knows {since:2014}]->(alice)" + | ||
| "(frank)-[fkc:knows {since:2015}]->(carol)-[ckd:knows {since:2014}]->(dave)" + | ||
| "(frank)-[fkd:knows {since:2015}]->(dave)-[dkc:knows {since:2014}]->(carol)" + | ||
| "(alice)-[akb]->(bob)-[bkc:knows {since:2013}]->(carol)-[ckd]->(dave)" + | ||
| "(alice)<-[bka]-(bob)<-[ckb:knows {since:2013}]-(carol)<-[dkc]-(dave)" + | ||
| "]"; | ||
| } | ||
| } |
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78 changes: 78 additions & 0 deletions
78
...les-operators/src/main/java/org/gradoop/examples/communities/GellyCommunitiesExample.java
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * Copyright © 2014 - 2019 Leipzig University (Database Research Group) | ||
| * | ||
| * Licensed 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.gradoop.examples.communities; | ||
|
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| import org.apache.flink.api.java.ExecutionEnvironment; | ||
| import org.gradoop.examples.common.SocialNetworkGraph; | ||
| import org.gradoop.flink.algorithms.gelly.labelpropagation.GellyLabelPropagation; | ||
| import org.gradoop.flink.model.impl.epgm.LogicalGraph; | ||
| import org.gradoop.flink.util.FlinkAsciiGraphLoader; | ||
| import org.gradoop.flink.util.GradoopFlinkConfig; | ||
|
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| /** | ||
| * A self contained example on how to use the {@link GellyLabelPropagation} operator. | ||
| * | ||
| * The example uses the graph in dev-support/social-network.pdf | ||
| */ | ||
| public class GellyCommunitiesExample { | ||
|
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| /** | ||
| * Runs the program on the example data graph. | ||
| * | ||
| * The example provides an overview over the usage of the {@link GellyLabelPropagation} Operator. | ||
| * Documentation for all available gelly based operators can be found in the projects wiki. | ||
| * | ||
| * Using the social network graph {@link SocialNetworkGraph}, the program will: | ||
| * <ol> | ||
| * <li>create the logical graph from the social network gdl string</li> | ||
| * <li>prepare the initial community id by using a transformation function on each vertex</li> | ||
| * <li>calculate the communities using label propagation</li> | ||
| * <li>print the results</li> | ||
| * </ol> | ||
| * | ||
| * @param args arguments | ||
| * @see <a href="https://github.com/dbs-leipzig/gradoop/wiki/Unary-Logical-Graph-Operators"> | ||
| * Gradoop Wiki</a> | ||
| * @throws Exception if something goes wrong | ||
| */ | ||
| public static void main(String[] args) throws Exception { | ||
|
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| // create flink execution environment | ||
| ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment(); | ||
|
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| // create loader | ||
| FlinkAsciiGraphLoader loader = new FlinkAsciiGraphLoader(GradoopFlinkConfig.createConfig(env)); | ||
|
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| // load data | ||
| loader.initDatabaseFromString(SocialNetworkGraph.getGraphGDLString()); | ||
|
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| // property key used for label propagation | ||
| final String communityKey = "comm_id"; | ||
|
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| // load the graph and set initial community id | ||
| LogicalGraph graph = loader.getLogicalGraph(); | ||
| graph = graph.transformVertices((current, transformed) -> { | ||
| current.setProperty(communityKey, current.getId()); | ||
| return current; | ||
| }); | ||
|
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| // apply label propagation to compute communities | ||
| graph = graph.callForGraph(new GellyLabelPropagation(5, communityKey)); | ||
|
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| // print results | ||
| graph.print(); | ||
| } | ||
| } |
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