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* 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
*
* 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.streams.neo4j.test;
import org.apache.streams.config.ComponentConfigurator;
import org.apache.streams.core.StreamsDatum;
import org.apache.streams.core.StreamsResultSet;
import org.apache.streams.jackson.StreamsJacksonMapper;
import org.apache.streams.neo4j.Neo4jConfiguration;
import org.apache.streams.neo4j.Neo4jReaderConfiguration;
import org.apache.streams.neo4j.bolt.Neo4jBoltClient;
import org.apache.streams.neo4j.bolt.Neo4jBoltPersistReader;
import org.apache.streams.neo4j.bolt.Neo4jBoltPersistWriter;
import org.apache.streams.pojo.json.Activity;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.typesafe.config.Config;
import com.typesafe.config.ConfigFactory;
import com.typesafe.config.ConfigParseOptions;
import org.apache.commons.io.IOUtils;
import org.neo4j.driver.v1.Session;
import org.neo4j.driver.v1.Transaction;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.testng.Assert;
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.util.List;
import static org.testng.Assert.assertTrue;
/**
* Integration test for Neo4jBoltPersist.
*
* Test that graph db responses can be converted to streams data.
*/
public class Neo4jBoltPersistIT {
private static final Logger LOGGER = LoggerFactory.getLogger(Neo4jBoltPersistIT.class);
private static final ObjectMapper MAPPER = StreamsJacksonMapper.getInstance();
private Neo4jBoltClient testClient;
private Neo4jConfiguration testConfiguration;
@BeforeClass
public void prepareTest() throws IOException {
Config reference = ConfigFactory.load();
File conf = new File("target/test-classes/Neo4jBoltPersistIT.conf");
assertTrue(conf.exists());
Config testResourceConfig = ConfigFactory.parseFileAnySyntax(conf, ConfigParseOptions.defaults().setAllowMissing(false));
Config typesafe = testResourceConfig.withFallback(reference).resolve();
testConfiguration = new ComponentConfigurator<>(Neo4jConfiguration.class).detectConfiguration(typesafe, "neo4j");
testClient = Neo4jBoltClient.getInstance(testConfiguration);
Session session = testClient.client().session();
Transaction transaction = session.beginTransaction();
transaction.run("MATCH ()-[r]-() DELETE r");
transaction.run("MATCH (n) DETACH DELETE n");
transaction.success();
session.close();
}
@Test
public void testNeo4jBoltPersist() throws Exception {
Neo4jBoltPersistWriter testPersistWriter = new Neo4jBoltPersistWriter(testConfiguration);
testPersistWriter.prepare(testConfiguration);
InputStream testActivityFolderStream = Neo4jBoltPersistIT.class.getClassLoader()
.getResourceAsStream("activities");
List<String> files = IOUtils.readLines(testActivityFolderStream, StandardCharsets.UTF_8);
int count = 0;
for( String file : files) {
LOGGER.info("File: " + file );
InputStream testActivityFileStream = Neo4jBoltPersistIT.class.getClassLoader()
.getResourceAsStream("activities/" + file);
Activity activity = MAPPER.readValue(testActivityFileStream, Activity.class);
if( activity.getActor() != null && activity.getActor().getId() == null && activity.getActor().getObjectType() != null) {
activity.getActor().setId(activity.getActor().getObjectType());
}
if( activity.getObject() != null && activity.getObject().getId() == null && activity.getObject().getObjectType() != null) {
activity.getObject().setId(activity.getObject().getObjectType());
}
if( activity.getTarget() != null && activity.getTarget().getId() == null && activity.getTarget().getObjectType() != null) {
activity.getTarget().setId(activity.getTarget().getObjectType());
}
if( activity.getId() == null && activity.getVerb() != null) {
activity.setId(activity.getVerb());
}
StreamsDatum datum = new StreamsDatum(activity, activity.getVerb());
testPersistWriter.write( datum );
LOGGER.info("Wrote: " + activity.getVerb() );
count++;
}
testPersistWriter.cleanUp();
LOGGER.info("Total Written: {}", count );
Assert.assertEquals(count, 89);
Neo4jReaderConfiguration vertexReaderConfiguration= MAPPER.convertValue(testConfiguration, Neo4jReaderConfiguration.class);
vertexReaderConfiguration.setQuery("MATCH (v) return v");
Neo4jBoltPersistReader vertexReader = new Neo4jBoltPersistReader(vertexReaderConfiguration);
vertexReader.prepare(null);
StreamsResultSet vertexResultSet = vertexReader.readAll();
LOGGER.info("Total Read: {}", vertexResultSet.size() );
Assert.assertEquals(vertexResultSet.size(), 24);
Neo4jReaderConfiguration edgeReaderConfiguration= MAPPER.convertValue(testConfiguration, Neo4jReaderConfiguration.class);
edgeReaderConfiguration.setQuery("MATCH (s)-[r]->(d) return r");
Neo4jBoltPersistReader edgeReader = new Neo4jBoltPersistReader(edgeReaderConfiguration);
edgeReader.prepare(null);
StreamsResultSet edgeResultSet = edgeReader.readAll();
LOGGER.info("Total Read: {}", edgeResultSet.size() );
Assert.assertEquals(edgeResultSet.size(), 100);
}
@AfterClass
public void cleanup() throws Exception {
Session session = testClient.client().session();
Transaction transaction = session.beginTransaction();
transaction.run("MATCH ()-[r]-() DELETE r");
transaction.run("MATCH (n) DETACH DELETE n");
transaction.success();
session.close();
}
}