[GitHub] [nifi] jfrazee commented on a change in pull request #4754: NIFI-7417: GetAzureCosmosDBRecord processor

[GitBox <gi...@apache.org>]

jfrazee commented on a change in pull request #4754:
URL: https://github.com/apache/nifi/pull/4754#discussion_r573998184



##########
File path: nifi-nar-bundles/nifi-azure-bundle/nifi-azure-processors/src/main/java/org/apache/nifi/processors/azure/cosmos/document/GetAzureCosmosDBRecord.java
##########
@@ -0,0 +1,266 @@
+/*
+ * 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.azure.cosmos.document;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.atomic.AtomicLong;
+
+import com.azure.cosmos.CosmosContainer;
+import com.azure.cosmos.models.CosmosQueryRequestOptions;
+import com.azure.cosmos.util.CosmosPagedIterable;
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.flowfile.attributes.CoreAttributes;
+import org.apache.nifi.logging.ComponentLog;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.schema.access.SchemaNotFoundException;
+import org.apache.nifi.serialization.RecordSetWriter;
+import org.apache.nifi.serialization.RecordSetWriterFactory;
+import org.apache.nifi.serialization.record.MapRecord;
+import org.apache.nifi.serialization.record.Record;
+import org.apache.nifi.serialization.record.RecordSchema;
+
+
+@Tags({ "azure", "cosmos", "record", "read", "fetch" })
+@InputRequirement(Requirement.INPUT_ALLOWED)
+@CapabilityDescription("A record-oriented GET processor that uses the record writers to write the Azure Cosmos SQL select query result set.")
+public class GetAzureCosmosDBRecord extends AbstractAzureCosmosDBProcessor {
+    public static final PropertyDescriptor WRITER_FACTORY = new PropertyDescriptor.Builder()
+        .name("record-writer-factory")
+        .displayName("Record Writer")
+        .description("The record writer to use to write the result sets")
+        .identifiesControllerService(RecordSetWriterFactory.class)
+        .required(true)
+        .build();
+    public static final PropertyDescriptor SCHEMA_NAME = new PropertyDescriptor.Builder()
+        .name("schema-name")
+        .displayName("Schema Name")
+        .description("The name of the schema in the configured schema registry to use for the query results")
+        .expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES)
+        .addValidator(StandardValidators.NON_BLANK_VALIDATOR)
+        .defaultValue("${schema.name}")
+        .required(true)
+        .build();
+
+    public static final PropertyDescriptor QUERY = new PropertyDescriptor.Builder()
+        .name("sql-core-document-query")
+        .displayName("SQL Core Document Query")
+        .description("The SQL select query to execute. "
+                + "This should be a valid SQL select query to Cosmos DB with core sql api")
+        .required(true)
+        .addValidator(StandardValidators.NON_BLANK_VALIDATOR)
+        .expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES)
+        .build();
+
+    public static final PropertyDescriptor MAX_RESPONSE_PAGE_SIZE = new PropertyDescriptor.Builder()
+        .name("max-page-size")
+        .displayName("Max Page Size")
+        .description("The maximum number of elements in a response page from Cosmos DB")
+        .required(false)
+        .expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES)
+        .addValidator(StandardValidators.POSITIVE_INTEGER_VALIDATOR)
+        .defaultValue("10")
+        .build();
+
+    private final static Set<Relationship> relationships;
+    private final static List<PropertyDescriptor> propertyDescriptors;
+    private ComponentLog logger;
+    private final static ObjectMapper mapper;

Review comment:
       You mean private right?




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