zipkin2.collector.scribe.ScribeSpanConsumer Maven / Gradle / Ivy
/*
* Copyright The OpenZipkin Authors
* SPDX-License-Identifier: Apache-2.0
*/
package zipkin2.collector.scribe;
import com.linecorp.armeria.common.CommonPools;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Base64;
import java.util.List;
import org.apache.thrift.async.AsyncMethodCallback;
import zipkin2.Callback;
import zipkin2.Span;
import zipkin2.codec.SpanBytesDecoder;
import zipkin2.collector.Collector;
import zipkin2.collector.CollectorMetrics;
import zipkin2.collector.scribe.generated.LogEntry;
import zipkin2.collector.scribe.generated.ResultCode;
import zipkin2.collector.scribe.generated.Scribe;
final class ScribeSpanConsumer implements Scribe.AsyncIface {
final Collector collector;
final CollectorMetrics metrics;
final String category;
ScribeSpanConsumer(Collector collector, CollectorMetrics metrics, String category) {
this.collector = collector;
this.metrics = metrics;
this.category = category;
}
@Override
public void Log(List messages, AsyncMethodCallback resultHandler) {
metrics.incrementMessages();
List spans = new ArrayList<>();
int byteCount = 0;
try {
for (LogEntry logEntry : messages) {
if (!category.equals(logEntry.category)) continue;
byte[] bytes = logEntry.message.getBytes(StandardCharsets.ISO_8859_1);
bytes = Base64.getMimeDecoder().decode(bytes); // finagle-zipkin uses mime encoding
byteCount += bytes.length;
spans.add(SpanBytesDecoder.THRIFT.decodeOne(bytes));
}
} catch (RuntimeException e) {
metrics.incrementMessagesDropped();
resultHandler.onError(e);
return;
} finally {
metrics.incrementBytes(byteCount);
}
collector.accept(spans, new Callback() {
@Override public void onSuccess(Void value) {
resultHandler.onComplete(ResultCode.OK);
}
@Override public void onError(Throwable t) {
Exception error = t instanceof Exception e ? e : new RuntimeException(t);
resultHandler.onError(error);
}
// Collectors may not be asynchronous so switch to blocking executor here.
}, CommonPools.blockingTaskExecutor());
}
}