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The following commit(s) were added to refs/heads/trunk by this push:
new 4223ef6 MINOR: Add NullPayloadGenerator to Trogdor (#4844)
4223ef6 is described below
commit 4223ef61060673e95077abfe6aca27bc0f71fffa
Author: Colin Patrick McCabe <[email protected]>
AuthorDate: Tue Apr 10 12:48:38 2018 -0700
MINOR: Add NullPayloadGenerator to Trogdor (#4844)
---
.../trogdor/workload/NullPayloadGenerator.java | 33 ++++++++++++++++++++++
.../kafka/trogdor/workload/PayloadGenerator.java | 3 +-
.../trogdor/workload/PayloadGeneratorTest.java | 8 ++++++
3 files changed, 43 insertions(+), 1 deletion(-)
diff --git
a/tools/src/main/java/org/apache/kafka/trogdor/workload/NullPayloadGenerator.java
b/tools/src/main/java/org/apache/kafka/trogdor/workload/NullPayloadGenerator.java
new file mode 100644
index 0000000..e9799c0
--- /dev/null
+++
b/tools/src/main/java/org/apache/kafka/trogdor/workload/NullPayloadGenerator.java
@@ -0,0 +1,33 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.kafka.trogdor.workload;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+
+/**
+ * A PayloadGenerator which always generates a null payload.
+ */
+public class NullPayloadGenerator implements PayloadGenerator {
+ @JsonCreator
+ public NullPayloadGenerator() {
+ }
+
+ @Override
+ public byte[] generate(long position) {
+ return null;
+ }
+}
diff --git
a/tools/src/main/java/org/apache/kafka/trogdor/workload/PayloadGenerator.java
b/tools/src/main/java/org/apache/kafka/trogdor/workload/PayloadGenerator.java
index 4895f21..3c574ba 100644
---
a/tools/src/main/java/org/apache/kafka/trogdor/workload/PayloadGenerator.java
+++
b/tools/src/main/java/org/apache/kafka/trogdor/workload/PayloadGenerator.java
@@ -33,7 +33,8 @@ import com.fasterxml.jackson.annotation.JsonTypeInfo;
@JsonSubTypes(value = {
@JsonSubTypes.Type(value = ConstantPayloadGenerator.class, name =
"constant"),
@JsonSubTypes.Type(value = SequentialPayloadGenerator.class, name =
"sequential"),
- @JsonSubTypes.Type(value = UniformRandomPayloadGenerator.class, name =
"uniformRandom")
+ @JsonSubTypes.Type(value = UniformRandomPayloadGenerator.class, name =
"uniformRandom"),
+ @JsonSubTypes.Type(value = NullPayloadGenerator.class, name = "null")
})
public interface PayloadGenerator {
/**
diff --git
a/tools/src/test/java/org/apache/kafka/trogdor/workload/PayloadGeneratorTest.java
b/tools/src/test/java/org/apache/kafka/trogdor/workload/PayloadGeneratorTest.java
index 25ef2e3..0909dc0 100644
---
a/tools/src/test/java/org/apache/kafka/trogdor/workload/PayloadGeneratorTest.java
+++
b/tools/src/test/java/org/apache/kafka/trogdor/workload/PayloadGeneratorTest.java
@@ -139,4 +139,12 @@ public class PayloadGeneratorTest {
iter.seek(0);
assertEquals(0, iter.position());
}
+
+ @Test
+ public void testNullPayloadGenerator() {
+ NullPayloadGenerator generator = new NullPayloadGenerator();
+ assertEquals(null, generator.generate(0));
+ assertEquals(null, generator.generate(1));
+ assertEquals(null, generator.generate(100));
+ }
}
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