| /* |
| * 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.example; |
| |
| import org.apache.streams.config.ComponentConfigurator; |
| import org.apache.streams.config.StreamsConfigurator; |
| import org.apache.streams.converter.ActivityConverterProcessor; |
| import org.apache.streams.converter.ActivityConverterProcessorConfiguration; |
| import org.apache.streams.converter.TypeConverterProcessor; |
| import org.apache.streams.core.StreamBuilder; |
| import org.apache.streams.data.ActivityConverter; |
| import org.apache.streams.data.DocumentClassifier; |
| import org.apache.streams.graph.GraphHttpConfiguration; |
| import org.apache.streams.graph.GraphHttpPersistWriter; |
| import org.apache.streams.jackson.StreamsJacksonMapper; |
| import org.apache.streams.local.LocalRuntimeConfiguration; |
| import org.apache.streams.local.builders.LocalStreamBuilder; |
| import org.apache.streams.twitter.TwitterFollowingConfiguration; |
| import org.apache.streams.twitter.converter.TwitterDocumentClassifier; |
| import org.apache.streams.twitter.converter.TwitterFollowActivityConverter; |
| import org.apache.streams.twitter.provider.TwitterFollowingProvider; |
| |
| import com.google.common.collect.Lists; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Collects friend and follow connections for a set of twitter users and builds a graph |
| * database in neo4j. |
| */ |
| public class TwitterFollowNeo4j implements Runnable { |
| |
| private final static Logger LOGGER = LoggerFactory.getLogger(TwitterFollowNeo4j.class); |
| |
| TwitterFollowNeo4jConfiguration config; |
| |
| public TwitterFollowNeo4j() { |
| this(new ComponentConfigurator<>(TwitterFollowNeo4jConfiguration.class).detectConfiguration(StreamsConfigurator.getConfig())); |
| } |
| |
| public TwitterFollowNeo4j(TwitterFollowNeo4jConfiguration config) { |
| this.config = config; |
| } |
| |
| public void run() { |
| |
| TwitterFollowingConfiguration twitterFollowingConfiguration = config.getTwitter(); |
| TwitterFollowingProvider followingProvider = new TwitterFollowingProvider(twitterFollowingConfiguration); |
| TypeConverterProcessor converter = new TypeConverterProcessor(String.class); |
| |
| ActivityConverterProcessorConfiguration activityConverterProcessorConfiguration = |
| new ActivityConverterProcessorConfiguration() |
| .withClassifiers(Lists.newArrayList((DocumentClassifier) new TwitterDocumentClassifier())) |
| .withConverters(Lists.newArrayList((ActivityConverter) new TwitterFollowActivityConverter())); |
| ActivityConverterProcessor activity = new ActivityConverterProcessor(activityConverterProcessorConfiguration); |
| |
| GraphHttpConfiguration graphWriterConfiguration = config.getGraph(); |
| GraphHttpPersistWriter graphPersistWriter = new GraphHttpPersistWriter(graphWriterConfiguration); |
| |
| LocalRuntimeConfiguration localRuntimeConfiguration = |
| StreamsJacksonMapper.getInstance().convertValue(StreamsConfigurator.detectConfiguration(), LocalRuntimeConfiguration.class); |
| StreamBuilder builder = new LocalStreamBuilder(localRuntimeConfiguration); |
| |
| builder.newPerpetualStream(TwitterFollowingProvider.class.getCanonicalName(), followingProvider); |
| builder.addStreamsProcessor(TypeConverterProcessor.class.getCanonicalName(), converter, 1, TwitterFollowingProvider.class.getCanonicalName()); |
| builder.addStreamsProcessor(ActivityConverterProcessor.class.getCanonicalName(), activity, 1, TypeConverterProcessor.class.getCanonicalName()); |
| builder.addStreamsPersistWriter(GraphHttpPersistWriter.class.getCanonicalName(), graphPersistWriter, 1, ActivityConverterProcessor.class.getCanonicalName()); |
| |
| builder.start(); |
| } |
| |
| public static void main(String[] args) { |
| |
| LOGGER.info(StreamsConfigurator.config.toString()); |
| |
| TwitterFollowNeo4j stream = new TwitterFollowNeo4j(); |
| |
| stream.run(); |
| |
| } |
| |
| } |