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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-4726) Dynamic UDFs support
Date Sun, 11 Sep 2016 17:08:20 GMT

    [ https://issues.apache.org/jira/browse/DRILL-4726?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15482060#comment-15482060
] 

ASF GitHub Bot commented on DRILL-4726:
---------------------------------------

Github user arina-ielchiieva commented on a diff in the pull request:

    https://github.com/apache/drill/pull/574#discussion_r78298630
  
    --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/planner/sql/handlers/CreateFunctionHandler.java
---
    @@ -0,0 +1,195 @@
    +/**
    + * 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
    + * <p/>
    + * http://www.apache.org/licenses/LICENSE-2.0
    + * <p/>
    + * 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.drill.exec.planner.sql.handlers;
    +
    +import com.google.common.collect.Lists;
    +import com.google.common.io.Files;
    +import org.apache.calcite.sql.SqlCharStringLiteral;
    +import org.apache.calcite.sql.SqlNode;
    +import org.apache.commons.io.FileUtils;
    +import org.apache.drill.common.exceptions.DrillRuntimeException;
    +import org.apache.drill.common.exceptions.UserException;
    +import org.apache.drill.exec.ExecConstants;
    +import org.apache.drill.exec.exception.FunctionValidationException;
    +import org.apache.drill.exec.exception.VersionMismatchException;
    +import org.apache.drill.exec.expr.fn.RemoteFunctionRegistry;
    +import org.apache.drill.exec.physical.PhysicalPlan;
    +import org.apache.drill.exec.planner.sql.DirectPlan;
    +import org.apache.drill.exec.planner.sql.parser.SqlCreateFunction;
    +import org.apache.drill.exec.proto.UserBitShared.Func;
    +import org.apache.drill.exec.proto.UserBitShared.Jar;
    +import org.apache.drill.exec.proto.UserBitShared.Registry;
    +import org.apache.drill.exec.store.sys.store.DataChangeVersion;
    +import org.apache.drill.exec.util.JarUtil;
    +import org.apache.drill.exec.work.foreman.ForemanSetupException;
    +import org.apache.hadoop.fs.FileSystem;
    +import org.apache.hadoop.fs.FileUtil;
    +import org.apache.hadoop.fs.Path;
    +
    +import java.io.File;
    +import java.io.IOException;
    +import java.util.List;
    +import java.util.UUID;
    +
    +public class CreateFunctionHandler extends DefaultSqlHandler {
    +
    +  private static org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(CreateFunctionHandler.class);
    +
    +  public CreateFunctionHandler(SqlHandlerConfig config) {
    +    super(config);
    +  }
    +
    +  /**
    +   * Creates UDFs dynamically.
    +   *
    +   * @return - Single row indicating list of registered UDFs, raise exception otherwise
    +   */
    +  @Override
    +  public PhysicalPlan getPlan(SqlNode sqlNode) throws ForemanSetupException, IOException
{
    --- End diff --
    
    Agree. This will be covered with inner class.


> Dynamic UDFs support
> --------------------
>
>                 Key: DRILL-4726
>                 URL: https://issues.apache.org/jira/browse/DRILL-4726
>             Project: Apache Drill
>          Issue Type: New Feature
>    Affects Versions: 1.6.0
>            Reporter: Arina Ielchiieva
>            Assignee: Arina Ielchiieva
>             Fix For: Future
>
>
> Allow register UDFs without  restart of Drillbits.
> Design is described in document below:
> https://docs.google.com/document/d/1FfyJtWae5TLuyheHCfldYUpCdeIezR2RlNsrOTYyAB4/edit?usp=sharing




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