Github user pvillard31 commented on a diff in the pull request:
https://github.com/apache/nifi/pull/502#discussion_r66512938
--- Diff:
nifi-nar-bundles/nifi-ignite-bundle/nifi-ignite-processors/src/main/java/org/apache/nifi/processors/ignite/cache/PutIgniteCache.java
---
@@ -0,0 +1,373 @@
+/*
+ * 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.nifi.processors.ignite.cache;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.AbstractMap;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.ignite.IgniteDataStreamer;
+import org.apache.ignite.lang.IgniteFuture;
+import org.apache.nifi.annotation.behavior.EventDriven;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.ReadsAttribute;
+import org.apache.nifi.annotation.behavior.ReadsAttributes;
+import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
+import org.apache.nifi.annotation.behavior.SupportsBatching;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.annotation.lifecycle.OnStopped;
+import org.apache.nifi.components.AllowableValue;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.io.InputStreamCallback;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.stream.io.StreamUtils;
+
+/**
+ * Put cache processors which pushes the flow file content into Ignite
Cache using
+ * DataStreamer interface
+ */
+@EventDriven
+@SupportsBatching
+@Tags({ "Ignite", "insert", "update", "stream", "write", "put", "cache",
"key" })
+@InputRequirement(Requirement.INPUT_REQUIRED)
+@CapabilityDescription("Stream the contents of a FlowFile to Ignite Cache
using DataStreamer. " +
+ "The processor uses the value of FlowFile attribute " +
PutIgniteCache.IGNITE_CACHE_ENTRY_KEY + " as the " +
+ "cache key and the byte array of the FlowFile as the value of the
cache entry value. Both the string key and a " +
+ " non-empty byte array value are required otherwise the FlowFile is
transfered to the failure relation.")
+@WritesAttributes({
+ @WritesAttribute(attribute =
PutIgniteCache.IGNITE_BATCH_FLOW_FILE_TOTAL_COUNT, description = "The total
number of FlowFile in the batch"),
+ @WritesAttribute(attribute =
PutIgniteCache.IGNITE_BATCH_FLOW_FILE_ITEM_NUMBER, description = "The item
number of FlowFile in the batch"),
+ @WritesAttribute(attribute =
PutIgniteCache.IGNITE_BATCH_FLOW_FILE_SUCCESSFUL_ITEM_NUMBER, description =
"The successful FlowFile item number"),
+ @WritesAttribute(attribute =
PutIgniteCache.IGNITE_BATCH_FLOW_FILE_SUCCESSFUL_COUNT, description = "The
number of successful FlowFiles"),
+ @WritesAttribute(attribute =
PutIgniteCache.IGNITE_BATCH_FLOW_FILE_FAILED_ITEM_NUMBER, description = "The
failed FlowFile item number"),
+ @WritesAttribute(attribute =
PutIgniteCache.IGNITE_BATCH_FLOW_FILE_FAILED_COUNT, description = "The total
number of failed FlowFiles in the batch"),
+ @WritesAttribute(attribute =
PutIgniteCache.IGNITE_BATCH_FLOW_FILE_FAILED_REASON_ATTRIBUTE_KEY, description
= "The failed reason attribute key")
+ })
+@ReadsAttributes({
+ @ReadsAttribute(attribute = PutIgniteCache.IGNITE_CACHE_ENTRY_KEY,
description = "Ignite cache key"),
+ })
+public class PutIgniteCache extends AbstractIgniteCacheProcessor {
+
+ /**
+ * The batch size of flow files to be processed on invocation of
onTrigger
+ */
+ public static final PropertyDescriptor BATCH_SIZE = new
PropertyDescriptor.Builder()
+ .name("Batch Size For Entries")
+ .description("Batch size for entries (1-500).")
+ .defaultValue("250")
--- End diff --
What are the reasons for this default value and the range 1-500?
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