/**
* 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 org.graylog2.ConfigurationException;
import org.graylog2.plugin.Message;
import org.graylog2.plugin.Tools;
import org.graylog2.plugin.inputs.Extractor;
import org.junit.Test;
import java.util.Collections;
import java.util.Map;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
public class RegexExtractorTest extends AbstractExtractorTest {
@Test
public void testBasicExtraction() throws Exception {
Message msg = new Message("The short message", "TestUnit", Tools.nowUTC());
msg.addField("somefield", "<10> 07 Aug 2013 somesubsystem: this is my message for username9001 id:9001");
RegexExtractor x = new RegexExtractor(metricRegistry, "foo", "foo", 0, Extractor.CursorStrategy.COPY, "somefield", "our_result", config("id:(\\d+)"), "foo", noConverters(), Extractor.ConditionType.NONE, null);
x.runExtractor(msg);
assertNotNull(msg.getField("our_result"));
assertEquals("<10> 07 Aug 2013 somesubsystem: this is my message for username9001 id:9001", msg.getField("somefield"));
assertEquals("9001", msg.getField("our_result"));
}
@Test
public void testBasicExtractionWithCutStrategy() throws Exception {
Message msg = new Message("The short message", "TestUnit", Tools.nowUTC());
msg.addField("somefield", "<10> 07 Aug 2013 somesubsystem: this is my message for username9001 id:9001");
RegexExtractor x = new RegexExtractor(metricRegistry, "foo", "foo", 0, Extractor.CursorStrategy.CUT, "somefield", "our_result", config("id:(\\d+)"), "foo", noConverters(), Extractor.ConditionType.NONE, null);
x.runExtractor(msg);
assertNotNull(msg.getField("our_result"));
assertEquals("<10> 07 Aug 2013 somesubsystem: this is my message for username9001 id:", msg.getField("somefield"));
assertEquals("9001", msg.getField("our_result"));
}
@Test
public void testBasicExtractionWithCutStrategyCanOverwriteSameField() throws Exception {
Message msg = new Message("The short message", "TestUnit", Tools.nowUTC());
RegexExtractor x = new RegexExtractor(metricRegistry, "foo", "foo", 0, Extractor.CursorStrategy.CUT, "message", "message", config("The (.+)"), "foo", noConverters(), Extractor.ConditionType.NONE, null);
x.runExtractor(msg);
assertEquals("short message", msg.getField("message"));
}
@Test
public void testBasicExtractionDoesNotFailOnNonMatch() throws Exception {
Message msg = new Message("The short message", "TestUnit", Tools.nowUTC());
msg.addField("somefield", "<10> 07 Aug 2013 somesubsystem: this is my message for username9001 id:9001");
RegexExtractor x = new RegexExtractor(metricRegistry, "foo", "foo", 0, Extractor.CursorStrategy.COPY, "somefield", "our_result", config("nothing:(\\d+)"), "foo", noConverters(), Extractor.ConditionType.NONE, null);
x.runExtractor(msg);
assertNull(msg.getField("our_result"));
assertEquals("<10> 07 Aug 2013 somesubsystem: this is my message for username9001 id:9001", msg.getField("somefield"));
}
@Test
public void testBasicExtractionDoesNotFailOnNonMatchWithCutStrategy() throws Exception {
Message msg = new Message("The short message", "TestUnit", Tools.nowUTC());
msg.addField("somefield", "<10> 07 Aug 2013 somesubsystem: this is my message for username9001 id:9001");
RegexExtractor x = new RegexExtractor(metricRegistry, "foo", "foo", 0, Extractor.CursorStrategy.CUT, "somefield", "our_result", config("nothing:(\\d+)"), "foo", noConverters(), Extractor.ConditionType.NONE, null);
x.runExtractor(msg);
assertNull(msg.getField("our_result"));
assertEquals("<10> 07 Aug 2013 somesubsystem: this is my message for username9001 id:9001", msg.getField("somefield"));
}
@Test
public void testExtractsFirstMatcherGroupWhenProvidedWithSeveral() throws Exception {
Message msg = new Message("The short message", "TestUnit", Tools.nowUTC());
msg.addField("somefield", "<10> 07 Aug 2013 somesubsystem: this is my message for username9001 id:9001 lolwut");
RegexExtractor x = new RegexExtractor(metricRegistry, "foo", "foo", 0, Extractor.CursorStrategy.COPY, "somefield", "our_result", config("id:(\\d+).*(lolwut)"), "foo", noConverters(), Extractor.ConditionType.NONE, null);
x.runExtractor(msg);
assertNotNull(msg.getField("our_result"));
assertEquals("<10> 07 Aug 2013 somesubsystem: this is my message for username9001 id:9001 lolwut", msg.getField("somefield"));
assertEquals("9001", msg.getField("our_result"));
}
@Test
public void testDoesNotFailOnNonExistentSourceField() throws Exception {
Message msg = new Message("The short message", "TestUnit", Tools.nowUTC());
RegexExtractor x = new RegexExtractor(metricRegistry, "foo", "foo", 0, Extractor.CursorStrategy.CUT, "LOLIDONTEXIST", "our_result", config("id:(\\d+)"), "foo", noConverters(), Extractor.ConditionType.NONE, null);
x.runExtractor(msg);
}
@Test
public void testDoesNotFailOnSourceFieldThatIsNotOfTypeString() throws Exception {
Message msg = new Message("The short message", "TestUnit", Tools.nowUTC());
msg.addField("somefield", 9001);
RegexExtractor x = new RegexExtractor(metricRegistry, "foo", "foo", 0, Extractor.CursorStrategy.CUT, "somefield", "our_result", config("id:(\\d+)"), "foo", noConverters(), Extractor.ConditionType.NONE, null);
x.runExtractor(msg);
}
@Test
public void testBasicExtractionWithCutStrategyDoesNotLeaveEmptyFields() throws Exception {
Message msg = new Message("The short message", "TestUnit", Tools.nowUTC());
msg.addField("somefield", "<10> 07 Aug 2013 somesubsystem: this is my message for username9001 id:9001");
RegexExtractor x = new RegexExtractor(metricRegistry, "foo", "foo", 0, Extractor.CursorStrategy.CUT, "somefield", "our_result", config("(.*)"), "foo", noConverters(), Extractor.ConditionType.NONE, null);
x.runExtractor(msg);
assertNotNull(msg.getField("our_result"));
assertEquals("fullyCutByExtractor", msg.getField("somefield"));
}
@Test(expected = ConfigurationException.class)
public void testDoesNotInitializeOnNullConfigMap() throws Exception {
new RegexExtractor(metricRegistry, "foo", "foo", 0, Extractor.CursorStrategy.CUT, "somefield", "somefield", null, "foo", noConverters(), Extractor.ConditionType.NONE, null);
}
@Test(expected = ConfigurationException.class)
public void testDoesNotInitializeOnNullRegexValue() throws Exception {
new RegexExtractor(metricRegistry, "foo", "foo", 0, Extractor.CursorStrategy.CUT, "somefield", "somefield", config(null), "foo", noConverters(), Extractor.ConditionType.NONE, null);
}
@Test(expected = ConfigurationException.class)
public void testDoesNotInitializeOnEmptyRegexValue() throws Exception {
new RegexExtractor(metricRegistry, "foo", "foo", 0, Extractor.CursorStrategy.CUT, "somefield", "somefield", config(""), "foo", noConverters(), Extractor.ConditionType.NONE, null);
}
@Test
public void testDoesNotRunWhenRegexConditionFails() throws Exception {
Message msg = new Message("The short message", "TestUnit", Tools.nowUTC());
msg.addField("somefield", "<10> 07 Aug 2013 somesubsystem: this is my message for username9001 id:9001");
RegexExtractor x = new RegexExtractor(metricRegistry, "foo", "foo", 0, Extractor.CursorStrategy.COPY, "somefield", "our_result", config("id:(\\d+)"), "foo", noConverters(), Extractor.ConditionType.REGEX, "^XXX");
x.runExtractor(msg);
assertNull(msg.getField("our_result"));
assertEquals("<10> 07 Aug 2013 somesubsystem: this is my message for username9001 id:9001", msg.getField("somefield"));
}
@Test
public void testDoesNotRunWhenStringConditionFails() throws Exception {
Message msg = new Message("The short message", "TestUnit", Tools.nowUTC());
msg.addField("somefield", "<10> 07 Aug 2013 somesubsystem: this is my message for username9001 id:9001");
RegexExtractor x = new RegexExtractor(metricRegistry, "foo", "foo", 0, Extractor.CursorStrategy.COPY, "somefield", "our_result", config("id:(\\d+)"), "foo", noConverters(), Extractor.ConditionType.STRING, "FOOBAR");
x.runExtractor(msg);
assertNull(msg.getField("our_result"));
assertEquals("<10> 07 Aug 2013 somesubsystem: this is my message for username9001 id:9001", msg.getField("somefield"));
}
@Test
public void testDoesNotCutFromStandardFields() throws Exception {
Message msg = new Message("The short message", "TestUnit", Tools.nowUTC());
RegexExtractor x = new RegexExtractor(metricRegistry, "foo", "foo", 0, Extractor.CursorStrategy.CUT, "message", "our_result", config("^(The).+"), "foo", noConverters(), Extractor.ConditionType.NONE, null);
x.runExtractor(msg);
// Would be cut to "short message" if cutting from standard field was allowed.
assertEquals("The short message", msg.getField("message"));
}
public static Map<String, Object> config(final String regex) {
return Collections.singletonMap("regex_value", regex);
}
}