237 lines
9.7 KiB
Java
237 lines
9.7 KiB
Java
/*
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* Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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* implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package monasca.persister;
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import com.google.common.util.concurrent.ThreadFactoryBuilder;
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import com.google.inject.Guice;
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import com.google.inject.Injector;
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import com.google.inject.Key;
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import com.google.inject.TypeLiteral;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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import java.util.concurrent.ThreadFactory;
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import io.dropwizard.Application;
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import io.dropwizard.setup.Bootstrap;
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import io.dropwizard.setup.Environment;
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import monasca.common.model.event.AlarmStateTransitionedEvent;
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import monasca.common.model.metric.MetricEnvelope;
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import monasca.persister.configuration.PersisterConfig;
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import monasca.persister.consumer.ManagedConsumer;
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import monasca.persister.consumer.ManagedConsumerFactory;
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import monasca.persister.consumer.KafkaChannel;
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import monasca.persister.consumer.KafkaChannelFactory;
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import monasca.persister.consumer.KafkaConsumer;
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import monasca.persister.consumer.KafkaConsumerFactory;
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import monasca.persister.consumer.KafkaConsumerRunnableBasic;
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import monasca.persister.consumer.KafkaConsumerRunnableBasicFactory;
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import monasca.persister.healthcheck.SimpleHealthCheck;
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import monasca.persister.pipeline.ManagedPipeline;
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import monasca.persister.pipeline.ManagedPipelineFactory;
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import monasca.persister.pipeline.event.AlarmStateTransitionHandlerFactory;
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import monasca.persister.pipeline.event.MetricHandlerFactory;
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import monasca.persister.resource.Resource;
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public class PersisterApplication extends Application<PersisterConfig> {
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private static final Logger logger = LoggerFactory.getLogger(PersisterApplication.class);
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public static void main(String[] args) throws Exception {
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/*
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* This should allow command line options to show the current version
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* java -jar monasca-persister.jar --version
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* java -jar monasca-persister.jar -version
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* java -jar monasca-persister.jar version
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* Really anything with the word version in it will show the
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* version as long as there is only one argument
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* */
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if (args.length == 1 && args[0].toLowerCase().contains("version")) {
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showVersion();
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System.exit(0);
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}
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new PersisterApplication().run(args);
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}
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private static void showVersion() {
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Package pkg;
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pkg = Package.getPackage("monasca.persister");
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System.out.println("-------- Version Information --------");
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System.out.println(pkg.getImplementationVersion());
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}
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@Override
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public void initialize(Bootstrap<PersisterConfig> bootstrap) {
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}
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@Override
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public String getName() {
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return "monasca-persister";
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}
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@Override
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public void run(PersisterConfig configuration, Environment environment)
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throws Exception {
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Injector injector = Guice.createInjector(new PersisterModule(configuration, environment));
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// Sample resource.
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environment.jersey().register(new Resource());
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// Sample health check.
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environment.healthChecks().register("test-health-check", new SimpleHealthCheck());
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final KafkaChannelFactory kafkaChannelFactory = injector.getInstance(KafkaChannelFactory.class);
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final ManagedConsumerFactory<MetricEnvelope[]> metricManagedConsumerFactory =
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injector.getInstance(Key.get(new TypeLiteral<ManagedConsumerFactory<MetricEnvelope[]>>() {}));
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// Metrics
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final KafkaConsumerFactory<MetricEnvelope[]> kafkaMetricConsumerFactory =
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injector.getInstance(Key.get(new TypeLiteral<KafkaConsumerFactory<MetricEnvelope[]>>(){}));
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final KafkaConsumerRunnableBasicFactory<MetricEnvelope[]> kafkaMetricConsumerRunnableBasicFactory =
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injector.getInstance(
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Key.get(new TypeLiteral<KafkaConsumerRunnableBasicFactory<MetricEnvelope[]>>() {
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}));
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ThreadFactory threadFactory = new ThreadFactoryBuilder()
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.setDaemon(true)
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.build();
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int totalNumberOfThreads = configuration.getMetricConfiguration().getNumThreads()
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+ configuration.getAlarmHistoryConfiguration().getNumThreads();
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ExecutorService executorService = Executors.newFixedThreadPool(totalNumberOfThreads, threadFactory);
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for (int i = 0; i < configuration.getMetricConfiguration().getNumThreads(); i++) {
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String threadId = "metric-" + String.valueOf(i);
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final KafkaChannel kafkaMetricChannel =
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kafkaChannelFactory.create(configuration.getMetricConfiguration(), threadId);
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final ManagedPipeline<MetricEnvelope[]> managedMetricPipeline =
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getMetricPipeline(configuration, threadId, injector);
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KafkaConsumerRunnableBasic<MetricEnvelope[]> kafkaMetricConsumerRunnableBasic =
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kafkaMetricConsumerRunnableBasicFactory.create(managedMetricPipeline, kafkaMetricChannel, threadId);
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final KafkaConsumer<MetricEnvelope[]> kafkaMetricConsumer =
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kafkaMetricConsumerFactory.create(kafkaMetricConsumerRunnableBasic, threadId, executorService);
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ManagedConsumer<MetricEnvelope[]> managedMetricConsumer =
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metricManagedConsumerFactory.create(kafkaMetricConsumer, threadId);
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environment.lifecycle().manage(managedMetricConsumer);
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}
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// AlarmStateTransitions
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final ManagedConsumerFactory<AlarmStateTransitionedEvent>
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alarmStateTransitionsManagedConsumerFactory = injector.getInstance(Key.get(new TypeLiteral
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<ManagedConsumerFactory<AlarmStateTransitionedEvent>>(){}));
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final KafkaConsumerFactory<AlarmStateTransitionedEvent>
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kafkaAlarmStateTransitionConsumerFactory =
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injector.getInstance(Key.get(new TypeLiteral<KafkaConsumerFactory<AlarmStateTransitionedEvent>>() { }));
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final KafkaConsumerRunnableBasicFactory<AlarmStateTransitionedEvent> kafkaAlarmStateTransitionConsumerRunnableBasicFactory =
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injector.getInstance(Key.get(new TypeLiteral<KafkaConsumerRunnableBasicFactory
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<AlarmStateTransitionedEvent>>(){})) ;
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for (int i = 0; i < configuration.getAlarmHistoryConfiguration().getNumThreads(); i++) {
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String threadId = "alarm-state-transition-" + String.valueOf(i);
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final KafkaChannel kafkaAlarmStateTransitionChannel =
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kafkaChannelFactory
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.create(configuration.getAlarmHistoryConfiguration(), threadId);
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final ManagedPipeline<AlarmStateTransitionedEvent> managedAlarmStateTransitionPipeline =
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getAlarmStateHistoryPipeline(configuration, threadId, injector);
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KafkaConsumerRunnableBasic<AlarmStateTransitionedEvent> kafkaAlarmStateTransitionConsumerRunnableBasic =
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kafkaAlarmStateTransitionConsumerRunnableBasicFactory.create(managedAlarmStateTransitionPipeline, kafkaAlarmStateTransitionChannel, threadId);
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final KafkaConsumer<AlarmStateTransitionedEvent> kafkaAlarmStateTransitionConsumer =
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kafkaAlarmStateTransitionConsumerFactory.create(kafkaAlarmStateTransitionConsumerRunnableBasic, threadId,
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executorService);
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ManagedConsumer<AlarmStateTransitionedEvent> managedAlarmStateTransitionConsumer =
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alarmStateTransitionsManagedConsumerFactory.create(kafkaAlarmStateTransitionConsumer, threadId);
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environment.lifecycle().manage(managedAlarmStateTransitionConsumer);
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}
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}
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private ManagedPipeline<MetricEnvelope[]> getMetricPipeline(
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PersisterConfig configuration,
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String threadId,
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Injector injector) {
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logger.debug("Creating metric pipeline [{}]...", threadId);
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final int batchSize = configuration.getMetricConfiguration().getBatchSize();
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logger.debug("Batch size for metric pipeline [{}]", batchSize);
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MetricHandlerFactory metricEventHandlerFactory =
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injector.getInstance(MetricHandlerFactory.class);
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ManagedPipelineFactory<MetricEnvelope[]>
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managedPipelineFactory = injector.getInstance(Key.get(new TypeLiteral
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<ManagedPipelineFactory<MetricEnvelope[]>>(){}));
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final ManagedPipeline<MetricEnvelope[]> pipeline =
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managedPipelineFactory.create(metricEventHandlerFactory.create(
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configuration.getMetricConfiguration(), threadId, batchSize), threadId);
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logger.debug("Instance of metric pipeline [{}] fully created", threadId);
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return pipeline;
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}
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public ManagedPipeline<AlarmStateTransitionedEvent> getAlarmStateHistoryPipeline(
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PersisterConfig configuration,
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String threadId,
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Injector injector) {
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logger.debug("Creating alarm state history pipeline [{}]...", threadId);
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int batchSize = configuration.getAlarmHistoryConfiguration().getBatchSize();
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logger.debug("Batch size for each AlarmStateHistoryPipeline [{}]", batchSize);
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AlarmStateTransitionHandlerFactory alarmHistoryEventHandlerFactory =
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injector.getInstance(AlarmStateTransitionHandlerFactory.class);
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ManagedPipelineFactory<AlarmStateTransitionedEvent> alarmStateTransitionPipelineFactory =
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injector.getInstance(new Key<ManagedPipelineFactory<AlarmStateTransitionedEvent>>(){});
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ManagedPipeline<AlarmStateTransitionedEvent> pipeline =
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alarmStateTransitionPipelineFactory.create(alarmHistoryEventHandlerFactory.create(
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configuration.getAlarmHistoryConfiguration(), threadId, batchSize), threadId);
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logger.debug("Instance of alarm state history pipeline [{}] fully created", threadId);
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return pipeline;
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}
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}
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