Github user kchilton2 commented on a diff in the pull request:
https://github.com/apache/incubator-rya/pull/121#discussion_r92825695
--- Diff:
extras/rya.pcj.fluo/pcj.fluo.app/src/main/java/org/apache/rya/indexing/pcj/fluo/app/export/rya/KafkaResultExporter.java
---
@@ -0,0 +1,72 @@
+/*
+ * 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.rya.indexing.pcj.fluo.app.export.rya;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import org.apache.fluo.api.client.TransactionBase;
+import org.apache.kafka.clients.producer.KafkaProducer;
+import org.apache.kafka.clients.producer.ProducerRecord;
+import
org.apache.rya.indexing.pcj.fluo.app.export.IncrementalResultExporter;
+import org.apache.rya.indexing.pcj.fluo.app.query.FluoQueryColumns;
+import org.apache.rya.indexing.pcj.storage.accumulo.VisibilityBindingSet;
+
+/**
+ * Incrementally exports SPARQL query results to Accumulo PCJ tables as
they are defined by Rya.
+ */
+public class KafkaResultExporter implements IncrementalResultExporter {
+ private final KafkaProducer<String, VisibilityBindingSet> producer;
+
+ /**
+ * Constructor
+ *
+ * @param producer
+ * created by {@link KafkaResultExporterFactory}
+ */
+ public KafkaResultExporter(KafkaProducer<String, VisibilityBindingSet>
producer) {
+ super();
+ checkNotNull(producer, "Producer is required.");
+ this.producer = producer;
+ }
+
+ /**
+ * Send the results to the topic using the queryID as the topicname
+ */
+ @Override
+ public void export(final TransactionBase fluoTx, final String queryId,
final VisibilityBindingSet result) throws ResultExportException {
+ checkNotNull(fluoTx);
+ checkNotNull(queryId);
+ checkNotNull(result);
+ try {
+ final String pcjId = fluoTx.gets(queryId,
FluoQueryColumns.RYA_PCJ_ID);
+ String msg = "out to kafta topic: queryId=" + queryId + "
pcjId=" + pcjId + " result=" + result;
+ System.out.println(msg);
--- End diff --
Use a logger.
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