add more java docs

Author: liustve

awsagentprovider/src/main/java/software/amazon/opentelemetry/javaagent/providers/exporter/aws/common/BaseEmfExporter.java

@@ -40,11 +40,20 @@
 import java.util.logging.Logger;
 import software.amazon.opentelemetry.javaagent.providers.exporter.aws.common.emitter.LogEventEmitter;
 
+/**
+ * Base class for EMF metric exporters that converts OpenTelemetry metrics to CloudWatch EMF format.
+ */
 public abstract class BaseEmfExporter<T> implements MetricExporter {
   private static final Logger logger = Logger.getLogger(BaseEmfExporter.class.getName());
   private final String namespace;
   protected final LogEventEmitter<T> emitter;
 
+  /**
+   * Creates a new EMF exporter with the specified namespace and log emitter.
+   *
+   * @param namespace the CloudWatch metric namespace, defaults to "default" if null
+   * @param emitter the log event emitter for sending EMF logs
+   */
   protected BaseEmfExporter(String namespace, LogEventEmitter<T> emitter) {
     this.namespace = namespace != null ? namespace : "default";
     this.emitter = emitter;

awsagentprovider/src/main/java/software/amazon/opentelemetry/javaagent/providers/exporter/aws/common/emitter/CloudWatchLogsClientEmitter.java

@@ -26,7 +26,7 @@
 import software.amazon.awssdk.services.cloudwatchlogs.model.*;
 
 /**
- * CloudWatch Logs client for batching and sending log events.
+ * A log event emitter that sends Log Events to CloudWatch Logs.
  *
  * <p>This class handles the batching logic and CloudWatch Logs API interactions for sending EMF
  * logs while respecting CloudWatch Logs constraints.

awsagentprovider/src/main/java/software/amazon/opentelemetry/javaagent/providers/exporter/aws/common/emitter/ConsoleEmitter.java

@@ -20,6 +20,7 @@
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
+/** A log event emitter that prints Log Events to Standard Out. */
 public class ConsoleEmitter implements LogEventEmitter<PrintStream> {
   private static final Logger logger = Logger.getLogger(ConsoleEmitter.class.getName());
   private final PrintStream emitter;

awsagentprovider/src/main/java/software/amazon/opentelemetry/javaagent/providers/exporter/aws/common/emitter/LogEventEmitter.java

@@ -18,7 +18,7 @@
 import java.util.Map;
 
 /**
- * Generic interface for log emitters.
+ * Generic interface for log event emitters.
  *
  * @param <T> The type of the underlying emitter client
  */