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From GitBox <...@apache.org>
Subject [GitHub] [nifi] tpalfy commented on a change in pull request #3336: Nifi 6054
Date Fri, 18 Oct 2019 15:18:08 GMT
tpalfy commented on a change in pull request #3336: Nifi 6054
URL: https://github.com/apache/nifi/pull/3336#discussion_r336487869
 
 

 ##########
 File path: nifi-nar-bundles/nifi-phoenix-bundle/nifi-phoenix-service/src/main/java/org/apache/nifi/dbcp/phoenix/StandardPhoenixDBCPService.java
 ##########
 @@ -0,0 +1,200 @@
+/*
+ * 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.dbcp.phoenix;
+
+import java.sql.Connection;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Properties;
+import java.util.concurrent.TimeUnit;
+
+import org.apache.commons.dbcp.BasicDataSource;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.annotation.lifecycle.OnDisabled;
+import org.apache.nifi.annotation.lifecycle.OnEnabled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.Validator;
+import org.apache.nifi.controller.AbstractControllerService;
+import org.apache.nifi.controller.ConfigurationContext;
+import org.apache.nifi.expression.AttributeExpression;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.reporting.InitializationException;
+import org.apache.phoenix.jdbc.PhoenixDriver;
+
+@Tags({ "phoenix", "DBCP", "hbase" })
+@CapabilityDescription("Create a phoenix DBCP connection pool.")
+public class StandardPhoenixDBCPService extends AbstractControllerService implements PhoenixDBCPService
{
+
+    public static final PropertyDescriptor DATABASE_URL = new PropertyDescriptor.Builder()
+            .name("Database Connection URL")
+            .description(
+                    "A database connection URL used to connect to a database. May contain
database system name, host, port, database name and some parameters."
+                            + " The exact syntax of a database connection URL is specified
by your DBMS.")
+            .defaultValue(null).addValidator(StandardValidators.NON_EMPTY_VALIDATOR).required(true)
+            .expressionLanguageSupported(ExpressionLanguageScope.VARIABLE_REGISTRY).build();
+
+    public static final PropertyDescriptor DB_DRIVER_TYPE = new PropertyDescriptor.Builder()
+            .name("Phoenix Driver to use").description("Phoenix Driver to use").defaultValue("Thick")
+            .allowableValues("Thick", "Thin").required(true).addValidator(Validator.VALID).build();
+
+    public static final PropertyDescriptor DB_USER = new PropertyDescriptor.Builder().name("Database
User")
+            .description("Database user name").defaultValue(null).addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+            .expressionLanguageSupported(ExpressionLanguageScope.VARIABLE_REGISTRY).build();
+
+    public static final PropertyDescriptor DB_PASSWORD = new PropertyDescriptor.Builder().name("Password")
+            .description("The password for the database user").defaultValue(null).required(false).sensitive(true)
+            .addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
+            .expressionLanguageSupported(ExpressionLanguageScope.VARIABLE_REGISTRY).build();
+
+    public static final PropertyDescriptor MAX_WAIT_TIME = new PropertyDescriptor.Builder().name("Max
Wait Time")
+            .description("The maximum amount of time that the pool will wait (when there
are no available connections) "
+                    + " for a connection to be returned before failing, or -1 to wait indefinitely.
")
 
 Review comment:
   "-1" is invalid according to `StandardValidators.TIME_PERIOD_VALIDATOR`.
   (Yeah, that's the only thing it differs from `DBCPConnectionPool.CUSTOM_TIME_PERIOD_VALIDATOR`.)

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