pnowojski commented on code in PR #26316: URL: https://github.com/apache/flink/pull/26316#discussion_r2001376069
########## flink-metrics/flink-metrics-otel/src/main/java/org/apache/flink/events/otel/OpenTelemetryEventReporter.java: ########## @@ -0,0 +1,115 @@ +/* + * 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 + * 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.apache.flink.events.otel; + +import org.apache.flink.events.Event; +import org.apache.flink.events.reporter.EventReporter; +import org.apache.flink.metrics.MetricConfig; +import org.apache.flink.metrics.otel.OpenTelemetryReporterBase; + +import io.opentelemetry.api.common.AttributeKey; +import io.opentelemetry.api.logs.LogRecordBuilder; +import io.opentelemetry.api.logs.Severity; +import io.opentelemetry.exporter.otlp.logs.OtlpGrpcLogRecordExporter; +import io.opentelemetry.exporter.otlp.logs.OtlpGrpcLogRecordExporterBuilder; +import io.opentelemetry.sdk.logs.SdkLoggerProvider; +import io.opentelemetry.sdk.logs.export.BatchLogRecordProcessor; +import io.opentelemetry.sdk.logs.export.LogRecordExporter; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.util.concurrent.TimeUnit; +import java.util.function.BiConsumer; + +import static org.apache.flink.metrics.otel.OpenTelemetryReporterOptions.tryConfigureEndpoint; +import static org.apache.flink.metrics.otel.OpenTelemetryReporterOptions.tryConfigureTimeout; + +/** + * A Flink {@link EventReporter} which is made to export log records/events using Open Telemetry's + * {@link LogRecordExporter}. + */ +public class OpenTelemetryEventReporter extends OpenTelemetryReporterBase implements EventReporter { + private static final Logger LOG = LoggerFactory.getLogger(OpenTelemetryEventReporter.class); + private LogRecordExporter logRecordExporter; + private SdkLoggerProvider loggerProvider; + private BatchLogRecordProcessor logRecordProcessor; + + public OpenTelemetryEventReporter() { + super(); + } + + @Override + public void open(MetricConfig metricConfig) { + LOG.info("Starting OpenTelemetryEventReporter"); + OtlpGrpcLogRecordExporterBuilder builder = OtlpGrpcLogRecordExporter.builder(); + tryConfigureEndpoint(metricConfig, builder::setEndpoint); + tryConfigureTimeout(metricConfig, builder::setTimeout); + + logRecordExporter = builder.build(); + logRecordProcessor = BatchLogRecordProcessor.builder(logRecordExporter).build(); + loggerProvider = + SdkLoggerProvider.builder() + .addLogRecordProcessor(logRecordProcessor) + .setResource(resource) + .build(); + } + + @Override + public void close() { + logRecordProcessor.forceFlush(); + logRecordProcessor.close(); + logRecordExporter.flush(); + logRecordExporter.close(); + } + + @Override + public void notifyOfAddedEvent(Event event) { + io.opentelemetry.api.logs.Logger logger = loggerProvider.get(event.getClassScope()); + LogRecordBuilder logRecordBuilder = logger.logRecordBuilder(); + + event.getAttributes().forEach(setAttribute(logRecordBuilder)); + + logRecordBuilder.setObservedTimestamp(event.getObservedTsMillis(), TimeUnit.MILLISECONDS); + + logRecordBuilder.setBody(event.getBody()); + logRecordBuilder.setSeverityText(event.getSeverity()); + try { + logRecordBuilder.setSeverity(Severity.valueOf(event.getSeverity())); + } catch (IllegalArgumentException iae) { + logRecordBuilder.setSeverity(Severity.UNDEFINED_SEVERITY_NUMBER); + } + + logRecordBuilder.setTimestamp(System.currentTimeMillis(), TimeUnit.MILLISECONDS); + logRecordBuilder.emit(); + } + + private static BiConsumer<String, Object> setAttribute(LogRecordBuilder logRecordBuilder) { + return (key, value) -> { + if (value instanceof String) { + logRecordBuilder.setAttribute(AttributeKey.stringKey(key), (String) value); + } else if (value instanceof Long) { + logRecordBuilder.setAttribute(AttributeKey.longKey(key), (Long) value); + } else if (value instanceof Double) { Review Comment: Done -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
