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https://issues.apache.org/jira/browse/RYA-377?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16317137#comment-16317137
]
ASF GitHub Bot commented on RYA-377:
------------------------------------
Github user kchilton2 commented on a diff in the pull request:
https://github.com/apache/incubator-rya/pull/257#discussion_r160263988
--- Diff:
extras/rya.streams/kafka/src/main/java/org/apache/rya/streams/kafka/processors/join/JoinProcessorSupplier.java
---
@@ -0,0 +1,191 @@
+/*
+ * 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.streams.kafka.processors.join;
+
+import static java.util.Objects.requireNonNull;
+
+import java.util.Iterator;
+import java.util.List;
+
+import org.apache.kafka.streams.processor.Processor;
+import org.apache.kafka.streams.processor.ProcessorContext;
+import org.apache.kafka.streams.state.KeyValueStore;
+import org.apache.rya.api.function.join.IterativeJoin;
+import org.apache.rya.api.model.VisibilityBindingSet;
+import org.apache.rya.streams.kafka.processors.ProcessorResult;
+import
org.apache.rya.streams.kafka.processors.ProcessorResult.BinaryResult;
+import
org.apache.rya.streams.kafka.processors.ProcessorResult.BinaryResult.Side;
+import org.apache.rya.streams.kafka.processors.ProcessorResultFactory;
+import org.apache.rya.streams.kafka.processors.RyaStreamsProcessor;
+import org.apache.rya.streams.kafka.processors.RyaStreamsProcessorSupplier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import edu.umd.cs.findbugs.annotations.DefaultAnnotation;
+import edu.umd.cs.findbugs.annotations.NonNull;
+
+/**
+ * Supplies {@link JoinProcessor} instances.
+ */
+@DefaultAnnotation(NonNull.class)
+public class JoinProcessorSupplier extends RyaStreamsProcessorSupplier {
+
+ private final String stateStoreName;
+ private final IterativeJoin join;
+ private final List<String> joinVars;
+ private final List<String> allVars;
+
+ /**
+ * Constructs an instance of {@link JoinProcessorSupplier}.
+ *
+ * @param stateStoreName - The name of the state store the processor
will use. (not null)
+ * @param join - The join function the supplied processor will use.
(not null)
+ * @param joinVars - The variables that the supplied processor will
join over. (not null)
+ * @param allVars - An ordered list of all the variables that may
appear in resulting Binding Sets.
+ * This list must lead with the same variables and order as {@code
joinVars}. (not null)
+ * @param resultFactory - The factory that the supplied processors
will use to create results. (not null)
+ * @throws IllegalArgumentException Thrown if {@code allVars} does not
start with {@code joinVars}.
+ */
+ public JoinProcessorSupplier(
+ final String stateStoreName,
+ final IterativeJoin join,
+ final List<String> joinVars,
+ final List<String> allVars,
+ final ProcessorResultFactory resultFactory) throws
IllegalArgumentException {
+ super(resultFactory);
+ this.stateStoreName = requireNonNull(stateStoreName);
+ this.join = requireNonNull(join);
+ this.joinVars = requireNonNull(joinVars);
+ this.allVars = requireNonNull(allVars);
+
+ if(!allVars.subList(0, joinVars.size()).equals(joinVars)) {
+ throw new IllegalArgumentException("All vars must be lead by
the join vars, but it did not. " +
--- End diff --
Updated.
> Implement single node kafka streams incremental SPARQL processor
> ----------------------------------------------------------------
>
> Key: RYA-377
> URL: https://issues.apache.org/jira/browse/RYA-377
> Project: Rya
> Issue Type: New Feature
> Reporter: Andrew Smith
> Assignee: Kevin Chilton
>
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