/**
* This file is part of Graylog.
*
* Graylog 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 3 of the License, or
* (at your option) any later version.
*
* Graylog 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 Graylog. If not, see <http://www.gnu.org/licenses/>.
*/
package org.graylog2.inputs.extractors;
import com.google.common.collect.ImmutableMap;
import org.graylog2.ConfigurationException;
import org.graylog2.plugin.Message;
import org.graylog2.plugin.Tools;
import org.graylog2.plugin.inputs.Converter;
import org.graylog2.plugin.inputs.Extractor;
import org.junit.Test;
import java.util.Collections;
import static org.assertj.core.api.Assertions.assertThat;
public class RegexReplaceExtractorTest extends AbstractExtractorTest {
@Test(expected = ConfigurationException.class)
public void testConstructorWithMissingRegex() throws Exception {
new RegexReplaceExtractor(
metricRegistry,
"id",
"title",
0L,
Extractor.CursorStrategy.COPY,
"message",
"message",
ImmutableMap.<String, Object>of(),
"user",
Collections.<Converter>emptyList(),
Extractor.ConditionType.NONE,
null);
}
@Test(expected = ConfigurationException.class)
public void testConstructorWithNonStringRegex() throws Exception {
new RegexReplaceExtractor(
metricRegistry,
"id",
"title",
0L,
Extractor.CursorStrategy.COPY,
"message",
"message",
ImmutableMap.<String, Object>of("regex", 0L),
"user",
Collections.<Converter>emptyList(),
Extractor.ConditionType.NONE,
null);
}
@Test(expected = ConfigurationException.class)
public void testConstructorWithNonStringReplacement() throws Exception {
new RegexReplaceExtractor(
metricRegistry,
"id",
"title",
0L,
Extractor.CursorStrategy.COPY,
"message",
"message",
ImmutableMap.<String, Object>of("regex", "NO-MATCH", "replacement", 0L),
"user",
Collections.<Converter>emptyList(),
Extractor.ConditionType.NONE,
null);
}
@Test
public void testReplacementWithNoMatchAndDefaultReplacement() throws Exception {
final Message message = new Message("Test", "source", Tools.nowUTC());
final RegexReplaceExtractor extractor = new RegexReplaceExtractor(
metricRegistry,
"id",
"title",
0L,
Extractor.CursorStrategy.COPY,
"message",
"message",
ImmutableMap.<String, Object>of("regex", "NO-MATCH"),
"user",
Collections.<Converter>emptyList(),
Extractor.ConditionType.NONE,
null);
extractor.runExtractor(message);
assertThat(message.getMessage()).isEqualTo("Test");
}
@Test
public void testReplacementWithOnePlaceholder() throws Exception {
final Message message = new Message("Test Foobar", "source", Tools.nowUTC());
final RegexReplaceExtractor extractor = new RegexReplaceExtractor(
metricRegistry,
"id",
"title",
0L,
Extractor.CursorStrategy.COPY,
"message",
"message",
ImmutableMap.<String, Object>of("regex", "Test (\\w+)"),
"user",
Collections.<Converter>emptyList(),
Extractor.ConditionType.NONE,
null);
extractor.runExtractor(message);
assertThat(message.getMessage()).isEqualTo("Foobar");
}
@Test(expected = RuntimeException.class)
public void testReplacementWithTooManyPlaceholders() throws Exception {
final Message message = new Message("Foobar 123", "source", Tools.nowUTC());
final RegexReplaceExtractor extractor = new RegexReplaceExtractor(
metricRegistry,
"id",
"title",
0L,
Extractor.CursorStrategy.COPY,
"message",
"message",
ImmutableMap.<String, Object>of("regex", "Foobar (\\d+)", "replacement", "$1 $2"),
"user",
Collections.<Converter>emptyList(),
Extractor.ConditionType.NONE,
null);
extractor.runExtractor(message);
}
@Test
public void testReplacementWithCustomReplacement() throws Exception {
final Message message = new Message("Foobar 123", "source", Tools.nowUTC());
final RegexReplaceExtractor extractor = new RegexReplaceExtractor(
metricRegistry,
"id",
"title",
0L,
Extractor.CursorStrategy.COPY,
"message",
"message",
ImmutableMap.<String, Object>of("regex", "(Foobar) (\\d+)", "replacement", "$2/$1"),
"user",
Collections.<Converter>emptyList(),
Extractor.ConditionType.NONE,
null);
extractor.runExtractor(message);
assertThat(message.getMessage()).isEqualTo("123/Foobar");
}
@Test
public void testReplacementWithReplaceAll() throws Exception {
final Message message = new Message("Foobar 123 Foobaz 456", "source", Tools.nowUTC());
final RegexReplaceExtractor extractor = new RegexReplaceExtractor(
metricRegistry,
"id",
"title",
0L,
Extractor.CursorStrategy.COPY,
"message",
"message",
ImmutableMap.<String, Object>of("regex", "(\\w+) (\\d+)", "replacement", "$2/$1", "replace_all", true),
"user",
Collections.<Converter>emptyList(),
Extractor.ConditionType.NONE,
null);
extractor.runExtractor(message);
assertThat(message.getMessage()).isEqualTo("123/Foobar 456/Foobaz");
}
@Test
public void testReplacementWithoutReplaceAll() throws Exception {
final Message message = new Message("Foobar 123 Foobaz 456", "source", Tools.nowUTC());
final RegexReplaceExtractor extractor = new RegexReplaceExtractor(
metricRegistry,
"id",
"title",
0L,
Extractor.CursorStrategy.COPY,
"message",
"message",
ImmutableMap.<String, Object>of("regex", "(\\w+) (\\d+)", "replacement", "$2/$1", "replace_all", false),
"user",
Collections.<Converter>emptyList(),
Extractor.ConditionType.NONE,
null);
extractor.runExtractor(message);
assertThat(message.getMessage()).isEqualTo("123/Foobar Foobaz 456");
}
}