Add addAllAttributes() to ReadWriteLogRecord.

sdk/logs/src/main/java/io/opentelemetry/sdk/logs/ReadWriteLogRecord.java

@@ -6,6 +6,7 @@
 package io.opentelemetry.sdk.logs;
 
 import io.opentelemetry.api.common.AttributeKey;
+import io.opentelemetry.api.common.Attributes;
 import io.opentelemetry.sdk.logs.data.LogRecordData;
 
 /**
@@ -23,7 +24,15 @@ public interface ReadWriteLogRecord {
    */
   <T> ReadWriteLogRecord setAttribute(AttributeKey<T> key, T value);
 
-  // TODO: add additional setters
+  @SuppressWarnings("unchecked")
+  default ReadWriteLogRecord setAllAttributes(Attributes attributes) {
+    if (attributes == null || attributes.isEmpty()) {
+      return this;
+    }
+    attributes.forEach(
+        (attributeKey, value) -> this.setAttribute((AttributeKey<Object>) attributeKey, value));
+    return this;
+  }
 
   /** Return an immutable {@link LogRecordData} instance representing this log record. */
   LogRecordData toLogRecordData();

sdk/logs/src/test/java/io/opentelemetry/sdk/logs/ReadWriteLogRecordTest.java

@@ -0,0 +1,54 @@
+/*
+ * Copyright The OpenTelemetry Authors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package io.opentelemetry.sdk.logs;
+
+import static io.opentelemetry.api.common.AttributeKey.stringKey;
+import static org.assertj.core.api.Assertions.assertThat;
+
+import io.opentelemetry.api.common.Attributes;
+import io.opentelemetry.api.logs.Severity;
+import io.opentelemetry.api.trace.SpanContext;
+import io.opentelemetry.sdk.common.InstrumentationScopeInfo;
+import io.opentelemetry.sdk.internal.AttributesMap;
+import io.opentelemetry.sdk.logs.data.Body;
+import io.opentelemetry.sdk.resources.Resource;
+import org.junit.jupiter.api.Test;
+
+class ReadWriteLogRecordTest {
+
+  @Test
+  void addAllAttributes() {
+    Body body = Body.string("bod");
+    AttributesMap initialAttributes = AttributesMap.create(100, 200);
+    initialAttributes.put(stringKey("foo"), "aaiosjfjioasdiojfjioasojifja");
+    initialAttributes.put(stringKey("untouched"), "yes");
+    Attributes newAttributes = Attributes.of(stringKey("foo"), "bar", stringKey("bar"), "buzz");
+    LogLimits limits = LogLimits.getDefault();
+    Resource resource = Resource.empty();
+    InstrumentationScopeInfo scope = InstrumentationScopeInfo.create("test");
+    SpanContext spanContext = SpanContext.getInvalid();
+
+    SdkReadWriteLogRecord logRecord =
+        SdkReadWriteLogRecord.create(
+            limits,
+            resource,
+            scope,
+            0L,
+            0L,
+            spanContext,
+            Severity.DEBUG,
+            "buggin",
+            body,
+            initialAttributes);
+
+    logRecord.setAllAttributes(newAttributes);
+
+    Attributes result = logRecord.toLogRecordData().getAttributes();
+    assertThat(result.get(stringKey("foo"))).isEqualTo("bar");
+    assertThat(result.get(stringKey("bar"))).isEqualTo("buzz");
+    assertThat(result.get(stringKey("untouched"))).isEqualTo("yes");
+  }
+}