jackye1995 commented on a change in pull request #4254:
URL: https://github.com/apache/iceberg/pull/4254#discussion_r818233428
##########
File path: aws/src/main/java/org/apache/iceberg/aws/s3/S3FileIO.java
##########
@@ -117,15 +120,18 @@ public void initialize(Map<String, String> properties) {
}
// Report Hadoop metrics if Hadoop is available
- try {
- DynConstructors.Ctor<MetricsContext> ctor =
-
DynConstructors.builder(MetricsContext.class).hiddenImpl(DEFAULT_METRICS_IMPL,
String.class).buildChecked();
- this.metrics = ctor.newInstance("s3");
-
- metrics.initialize(properties);
- } catch (NoSuchMethodException | ClassCastException e) {
- LOG.warn("Unable to load metrics class: '{}', falling back to null
metrics", DEFAULT_METRICS_IMPL, e);
+ String metricsImpl = properties.getOrDefault(
+ CatalogProperties.IO_METRICS_IMPL,
CatalogProperties.IO_METRICS_IMPL_DEFAULT);
+
+ ImmutableMap<String, String> metricContextProperties =
ImmutableMap.copyOf(properties);
+ if (!properties.containsKey(CatalogProperties.IO_METRICS_SCHEME)) {
+ metricContextProperties = ImmutableMap.<String, String>builder()
+ .putAll(properties)
+ .put(CatalogProperties.IO_METRICS_SCHEME, IO_METRICS_SCHEME_S3)
+ .build();
}
+
+ this.metrics = CatalogUtil.loadFileIOMetricsContext(metricsImpl,
metricContextProperties, null);
Review comment:
nit: add an inline comment for null input:
```java
CatalogUtil.loadFileIOMetricsContext(metricsImpl, metricContextProperties,
null /* no Hadoop config */);
```
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