Github user nickwallen commented on a diff in the pull request:
https://github.com/apache/metron/pull/1150#discussion_r208320208
--- Diff:
metron-analytics/metron-profiler-spark/src/main/java/org/apache/metron/profiler/spark/BatchProfiler.java
---
@@ -0,0 +1,188 @@
+/*
+ *
+ * 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.metron.profiler.spark;
+
+import com.google.common.collect.Maps;
+import org.apache.metron.common.configuration.profiler.ProfilerConfig;
+import org.apache.metron.profiler.MessageRoute;
+import org.apache.metron.profiler.ProfilePeriod;
+import org.apache.metron.profiler.spark.function.HBaseWriterFunction;
+import org.apache.metron.profiler.spark.function.MessageRouterFunction;
+import org.apache.metron.profiler.spark.function.ProfileBuilderFunction;
+import org.apache.spark.api.java.function.MapFunction;
+import org.apache.spark.sql.Dataset;
+import org.apache.spark.sql.Encoders;
+import org.apache.spark.sql.KeyValueGroupedDataset;
+import org.apache.spark.sql.SparkSession;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.Serializable;
+import java.lang.invoke.MethodHandles;
+import java.util.Map;
+import java.util.Properties;
+import java.util.concurrent.TimeUnit;
+
+import static
org.apache.metron.profiler.spark.BatchProfilerConfig.PERIOD_DURATION;
+import static
org.apache.metron.profiler.spark.BatchProfilerConfig.PERIOD_DURATION_UNITS;
+import static
org.apache.metron.profiler.spark.BatchProfilerConfig.TELEMETRY_INPUT_FORMAT;
+import static
org.apache.metron.profiler.spark.BatchProfilerConfig.TELEMETRY_INPUT_PATH;
+import static org.apache.spark.sql.functions.sum;
+
+/**
+ * A Profiler that generates profiles by consuming data in batch from
archived telemetry.
+ *
+ * <p>The Batch Profiler is executed in Spark.
+ */
+public class BatchProfiler implements Serializable {
+
+ protected static final Logger LOG =
LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
+
+ /**
+ * Execute the Batch Profiler.
+ *
+ * @param spark The spark session.
+ * @param properties The profiler configuration properties.
+ * @param profiles The profile definitions.
+ * @return The number of profile measurements produced.
+ */
+ public long execute(SparkSession spark,
--- End diff --
This is the main method that drives the Batch Profiler. Its a good place
to start reviewing.
---
