1 files changed, 85 insertions, 0 deletions
diff --git a/impl_core/src/main/java/io/opencensus/implcore/trace/NoRecordEventsSpanImpl.java b/impl_core/src/main/java/io/opencensus/implcore/trace/NoRecordEventsSpanImpl.java
new file mode 100644
index 00000000..8a5f8e05
--- /dev/null
+++ b/impl_core/src/main/java/io/opencensus/implcore/trace/NoRecordEventsSpanImpl.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright 2018, OpenCensus Authors
+ *
+ * Licensed 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 io.opencensus.implcore.trace;
+
+import com.google.common.base.Preconditions;
+import io.opencensus.trace.Annotation;
+import io.opencensus.trace.AttributeValue;
+import io.opencensus.trace.EndSpanOptions;
+import io.opencensus.trace.Link;
+import io.opencensus.trace.Span;
+import io.opencensus.trace.SpanContext;
+import io.opencensus.trace.Status;
+import java.util.EnumSet;
+import java.util.Map;
+
+/** Implementation for the {@link Span} class that does not record trace events. */
+final class NoRecordEventsSpanImpl extends Span {
+
+  private static final EnumSet<Options> NOT_RECORD_EVENTS_SPAN_OPTIONS =
+      EnumSet.noneOf(Span.Options.class);
+
+  static NoRecordEventsSpanImpl create(SpanContext context) {
+    return new NoRecordEventsSpanImpl(context);
+  }
+
+  @Override
+  public void addAnnotation(String description, Map<String, AttributeValue> attributes) {
+    Preconditions.checkNotNull(description, "description");
+    Preconditions.checkNotNull(attributes, "attribute");
+  }
+
+  @Override
+  public void addAnnotation(Annotation annotation) {
+    Preconditions.checkNotNull(annotation, "annotation");
+  }
+
+  @Override
+  public void putAttribute(String key, AttributeValue value) {
+    Preconditions.checkNotNull(key, "key");
+    Preconditions.checkNotNull(value, "value");
+  }
+
+  @Override
+  public void putAttributes(Map<String, AttributeValue> attributes) {
+    Preconditions.checkNotNull(attributes, "attributes");
+  }
+
+  @Override
+  public void addMessageEvent(io.opencensus.trace.MessageEvent messageEvent) {
+    Preconditions.checkNotNull(messageEvent, "messageEvent");
+  }
+
+  @Override
+  public void addLink(Link link) {
+    Preconditions.checkNotNull(link, "link");
+  }
+
+  @Override
+  public void setStatus(Status status) {
+    Preconditions.checkNotNull(status, "status");
+  }
+
+  @Override
+  public void end(EndSpanOptions options) {
+    Preconditions.checkNotNull(options, "options");
+  }
+
+  private NoRecordEventsSpanImpl(SpanContext context) {
+    super(context, NOT_RECORD_EVENTS_SPAN_OPTIONS);
+  }
+}