itests/hive-unit/src/test/java/org/apache/hadoop/hive/ql/TestCreateUdfEntities.java

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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 *    http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.hadoop.hive.ql;

import static org.junit.Assert.*;

import org.apache.hadoop.hive.conf.HiveConf;
import org.apache.hadoop.hive.ql.hooks.Entity;
import org.apache.hadoop.hive.ql.hooks.WriteEntity;
import org.apache.hadoop.hive.ql.reexec.ReExecDriver;
import org.apache.hadoop.hive.ql.session.SessionState;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

public class TestCreateUdfEntities {
  private IDriver driver;
  private String funcName = "print_test";

  @Before
  public void setUp() throws Exception {

    HiveConf conf = new HiveConf(IDriver.class);
    SessionState.start(conf);
    driver = DriverFactory.newDriver(conf);
  }

  @After
  public void tearDown() throws Exception {
    driver.run("drop function " + funcName);
    driver.close();
    SessionState.get().close();
  }

  @Test
  public void testUdfWithLocalResource() throws Exception {
    int rc = ((ReExecDriver)driver).compile("CREATE FUNCTION " + funcName + " AS " +
        "'org.apache.hadoop.hive.ql.udf.generic.GenericUDFPrintf'  using file '" + "file:///tmp/udf1.jar'", true);
    assertEquals(0, rc);
    WriteEntity outputEntities[] = driver.getPlan().getOutputs().toArray(new WriteEntity[] {});
    assertEquals(outputEntities.length, 3);

    assertEquals(Entity.Type.DATABASE, outputEntities[0].getType());
    assertEquals("default", outputEntities[0].getDatabase().getName());

    assertEquals(Entity.Type.FUNCTION, outputEntities[1].getType());
    assertEquals(funcName, outputEntities[1].getFunction().getFunctionName());

    assertEquals(Entity.Type.LOCAL_DIR, outputEntities[2].getType());
    assertEquals("file:///tmp/udf1.jar", outputEntities[2].getLocation().toString());
  }

  @Test
  public void testUdfWithDfsResource() throws Exception {
    int rc = ((ReExecDriver)driver).compile("CREATE FUNCTION default." + funcName + " AS " +
        "'org.apache.hadoop.hive.ql.udf.generic.GenericUDFPrintf'  using file '" + "hdfs:///tmp/udf1.jar'", true);
    assertEquals(0, rc);
    WriteEntity outputEntities[] = driver.getPlan().getOutputs().toArray(new WriteEntity[] {});
    assertEquals(outputEntities.length, 3);

    assertEquals(Entity.Type.DATABASE, outputEntities[0].getType());
    assertEquals("default", outputEntities[0].getDatabase().getName());

    assertEquals(Entity.Type.FUNCTION, outputEntities[1].getType());
    assertEquals(funcName, outputEntities[1].getFunction().getFunctionName());

    assertEquals(Entity.Type.DFS_DIR, outputEntities[2].getType());
    assertEquals("hdfs:///tmp/udf1.jar", outputEntities[2].getLocation().toString());
  }

}