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https://issues.apache.org/jira/browse/NIFI-2156?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15357918#comment-15357918
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ASF GitHub Bot commented on NIFI-2156:
--------------------------------------
Github user pvillard31 commented on a diff in the pull request:
https://github.com/apache/nifi/pull/599#discussion_r69216929
--- Diff:
nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/test/java/org/apache/nifi/processors/standard/TestListDatabaseTables.java
---
@@ -0,0 +1,168 @@
+/*
+ * 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.standard;
+
+import org.apache.nifi.controller.AbstractControllerService;
+import org.apache.nifi.dbcp.DBCPService;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.util.MockFlowFile;
+import org.apache.nifi.util.TestRunner;
+import org.apache.nifi.util.TestRunners;
+import org.apache.nifi.util.file.FileUtils;
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import java.io.File;
+import java.io.IOException;
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+import java.sql.SQLNonTransientConnectionException;
+import java.sql.Statement;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import static org.junit.Assert.assertEquals;
+
+
+/**
+ * Unit tests for ListDatabaseTables processor.
+ */
+public class TestListDatabaseTables {
--- End diff --
I am not familiar with Derby but would it be possible to also test
catalog/schema aspects?
> Add ListDatabaseTables processor
> --------------------------------
>
> Key: NIFI-2156
> URL: https://issues.apache.org/jira/browse/NIFI-2156
> Project: Apache NiFi
> Issue Type: Sub-task
> Components: Extensions
> Reporter: Matt Burgess
> Assignee: Matt Burgess
> Fix For: 1.0.0
>
>
> This processor would use a DatabaseConnectionPool controller service, call
> getTables(), and if the (optional, defaulting-to-false) property "Include Row
> Count" is set, then a "SELECT COUNT(1) from table" would be issued to the
> database. The table catalog, schema, name, type, remarks (and its count if
> specified) will be included as attributes in a zero-content flow file.
> It will also use State Management to only list tables once. If new tables are
> added (and the processor is running), then the new tables' flow files will be
> generated. Changing any property that could affect the list of returned
> tables (such as the DB Connection, catalog, schema pattern, table name
> pattern, or table types) will reset the state and all tables will be fetched
> using the new criteria. The state can also be manually cleared using the
> standard Clear State link on the View State dialog (available on the
> processor's context menu)
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