/*
* Druid - a distributed column store.
* Copyright (C) 2012, 2013 Metamarkets Group Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package io.druid.query.extraction.extraction;
import com.google.common.collect.Sets;
import io.druid.query.extraction.DimExtractionFn;
import io.druid.query.extraction.RegexDimExtractionFn;
import org.junit.Assert;
import org.junit.Test;
import java.util.Set;
/**
*/
public class RegexDimExtractionFnTest
{
private static final String[] paths = {
"/druid/prod/historical",
"/druid/prod/broker",
"/druid/prod/coordinator",
"/druid/demo/historical",
"/druid/demo/broker",
"/druid/demo/coordinator",
"/dash/aloe",
"/dash/baloo"
};
private static final String[] testStrings = {
"apple",
"awesome",
"asylum",
"business",
"be",
"cool"
};
@Test
public void testPathExtraction()
{
String regex = "/([^/]+)/";
DimExtractionFn dimExtractionFn = new RegexDimExtractionFn(regex);
Set<String> extracted = Sets.newHashSet();
for (String path : paths) {
extracted.add(dimExtractionFn.apply(path));
}
Assert.assertEquals(2, extracted.size());
Assert.assertTrue(extracted.contains("druid"));
Assert.assertTrue(extracted.contains("dash"));
}
@Test
public void testDeeperPathExtraction()
{
String regex = "^/([^/]+/[^/]+)(/|$)";
DimExtractionFn dimExtractionFn = new RegexDimExtractionFn(regex);
Set<String> extracted = Sets.newHashSet();
for (String path : paths) {
extracted.add(dimExtractionFn.apply(path));
}
Assert.assertEquals(4, extracted.size());
Assert.assertTrue(extracted.contains("druid/prod"));
Assert.assertTrue(extracted.contains("druid/demo"));
Assert.assertTrue(extracted.contains("dash/aloe"));
Assert.assertTrue(extracted.contains("dash/baloo"));
}
@Test
public void testStringExtraction()
{
String regex = "(.)";
DimExtractionFn dimExtractionFn = new RegexDimExtractionFn(regex);
Set<String> extracted = Sets.newHashSet();
for (String testString : testStrings) {
extracted.add(dimExtractionFn.apply(testString));
}
Assert.assertEquals(3, extracted.size());
Assert.assertTrue(extracted.contains("a"));
Assert.assertTrue(extracted.contains("b"));
Assert.assertTrue(extracted.contains("c"));
}
}