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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| <?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"> | ||
| <parent> | ||
| <artifactId>hadoop-unit</artifactId> | ||
| <groupId>fr.jetoile.hadoop</groupId> | ||
| <version>1.4-SNAPSHOT</version> | ||
| </parent> | ||
| <modelVersion>4.0.0</modelVersion> | ||
|
|
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| <artifactId>hadoop-unit-neo4j</artifactId> | ||
|
|
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| <properties> | ||
| <neo4j-java-driver.version>1.0.4</neo4j-java-driver.version> | ||
| </properties> | ||
|
|
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| <dependencies> | ||
|
|
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| <dependency> | ||
| <groupId>fr.jetoile.hadoop</groupId> | ||
| <artifactId>hadoop-unit-commons</artifactId> | ||
| </dependency> | ||
|
|
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| <dependency> | ||
| <groupId>org.neo4j</groupId> | ||
| <artifactId>neo4j</artifactId> | ||
| </dependency> | ||
|
|
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| <dependency> | ||
| <groupId>org.neo4j</groupId> | ||
| <artifactId>neo4j-bolt</artifactId> | ||
| </dependency> | ||
|
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| <dependency> | ||
| <groupId>org.neo4j.driver</groupId> | ||
| <artifactId>neo4j-java-driver</artifactId> | ||
| <version>${neo4j-java-driver.version}</version> | ||
| <scope>test</scope> | ||
| </dependency> | ||
| </dependencies> | ||
|
|
||
|
|
||
| </project> |
147 changes: 147 additions & 0 deletions
147
hadoop-unit-neo4j/src/main/java/fr/jetoile/hadoopunit/component/Neo4jBootstrap.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,147 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
|
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| package fr.jetoile.hadoopunit.component; | ||
|
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|
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| import fr.jetoile.hadoopunit.Component; | ||
| import fr.jetoile.hadoopunit.HadoopUnitConfig; | ||
| import fr.jetoile.hadoopunit.exception.BootstrapException; | ||
| import org.apache.commons.configuration.Configuration; | ||
| import org.apache.commons.configuration.ConfigurationException; | ||
| import org.apache.commons.configuration.PropertiesConfiguration; | ||
| import org.apache.commons.io.FileUtils; | ||
| import org.neo4j.cypher.javacompat.internal.GraphDatabaseCypherService; | ||
| import org.neo4j.graphdb.GraphDatabaseService; | ||
| import org.neo4j.graphdb.factory.GraphDatabaseFactory; | ||
| import org.neo4j.graphdb.factory.GraphDatabaseSettings; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
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| import java.io.IOException; | ||
| import java.nio.file.Paths; | ||
|
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| public class Neo4jBootstrap implements Bootstrap { | ||
| final public static String NAME = Component.NEO4J.name(); | ||
|
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| final private Logger LOGGER = LoggerFactory.getLogger(Neo4jBootstrap.class); | ||
|
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| private State state = State.STOPPED; | ||
|
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| private Configuration configuration; | ||
|
|
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| private int port; | ||
| private String ip; | ||
| private String tmp; | ||
|
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| private GraphDatabaseService graphDb; | ||
|
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| public Neo4jBootstrap() { | ||
| try { | ||
| loadConfig(); | ||
| } catch (BootstrapException e) { | ||
| LOGGER.error("unable to load configuration", e); | ||
| } | ||
| } | ||
|
|
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| @Override | ||
| public String getName() { | ||
| return NAME; | ||
| } | ||
|
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| @Override | ||
| public String getProperties() { | ||
| return "[" + | ||
| "ip:" + ip + | ||
| ", port:" + port + | ||
| "]"; | ||
| } | ||
|
|
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| private void loadConfig() throws BootstrapException { | ||
| try { | ||
| configuration = new PropertiesConfiguration(HadoopUnitConfig.DEFAULT_PROPS_FILE); | ||
| } catch (ConfigurationException e) { | ||
| throw new BootstrapException("bad config", e); | ||
| } | ||
|
|
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| port = configuration.getInt(HadoopUnitConfig.NEO4J_PORT_KEY); | ||
| ip = configuration.getString(HadoopUnitConfig.NEO4J_IP_KEY); | ||
| tmp = configuration.getString(HadoopUnitConfig.NEO4J_TEMP_DIR_KEY); | ||
| } | ||
|
|
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| private void build() { | ||
| GraphDatabaseSettings.BoltConnector bolt = GraphDatabaseSettings.boltConnector( "0" ); | ||
|
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| graphDb = new GraphDatabaseFactory() | ||
| .newEmbeddedDatabaseBuilder(Paths.get(tmp).toFile()) | ||
| // .setConfig(GraphDatabaseSettings.pagecache_memory, "512M") | ||
| // .setConfig(GraphDatabaseSettings.string_block_size, "60") | ||
| // .setConfig(GraphDatabaseSettings.array_block_size, "300") | ||
| .setConfig( bolt.enabled, "true" ) | ||
| .setConfig( bolt.address, ip + ":" + port ) | ||
| .newGraphDatabase(); | ||
| } | ||
|
|
||
| @Override | ||
| public Bootstrap start() { | ||
| if (state == State.STOPPED) { | ||
| state = State.STARTING; | ||
| LOGGER.info("{} is starting", this.getClass().getName()); | ||
| try { | ||
| build(); | ||
| } catch (Exception e) { | ||
| LOGGER.error("unable to add cassandra", e); | ||
| } | ||
| state = State.STARTED; | ||
| LOGGER.info("{} is started", this.getClass().getName()); | ||
| } | ||
|
|
||
| return this; | ||
| } | ||
|
|
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| @Override | ||
| public Bootstrap stop() { | ||
| if (state == State.STARTED) { | ||
| state = State.STOPPING; | ||
| LOGGER.info("{} is stopping", this.getClass().getName()); | ||
| try { | ||
| graphDb.shutdown(); | ||
| cleanup(); | ||
| } catch (Exception e) { | ||
| LOGGER.error("unable to stop cassandra", e); | ||
| } | ||
| state = State.STOPPED; | ||
| LOGGER.info("{} is stopped", this.getClass().getName()); | ||
| } | ||
| return this; | ||
| } | ||
|
|
||
| private void cleanup() { | ||
| try { | ||
| FileUtils.deleteDirectory(Paths.get(configuration.getString(HadoopUnitConfig.NEO4J_TEMP_DIR_KEY)).toFile()); | ||
| } catch (IOException e) { | ||
| LOGGER.error("unable to delete {}", configuration.getString(HadoopUnitConfig.NEO4J_TEMP_DIR_KEY), e); | ||
| } | ||
| } | ||
|
|
||
| @Override | ||
| public org.apache.hadoop.conf.Configuration getConfiguration() { | ||
| throw new UnsupportedOperationException("the method getConfiguration can not be called on Neo4jBootstrap"); | ||
| } | ||
|
|
||
| public GraphDatabaseService getNeo4jGraph() { | ||
| return this.graphDb; | ||
| } | ||
|
|
||
| } |
1 change: 1 addition & 0 deletions
1
...unit-neo4j/src/main/resources/META-INF/services/fr.jetoile.hadoopunit.component.Bootstrap
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| fr.jetoile.hadoopunit.component.Neo4jBootstrap |
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