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Merge pull request #16186 from javanna/enhancement/simplify_date_format 

Date processor: simplify switch to identify the specified date format
This commit is contained in:
Luca Cavanna 2016-01-22 16:52:21 +01:00
parent 720c531364 38ea9c7d13
commit 817b4bd02a
4 changed files with 57 additions and 65 deletions
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59
core/src/main/java/org/elasticsearch/ingest/processor/DateFormat.java
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@ -25,36 +25,30 @@ import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.ISODateTimeFormat;
import java.util.Locale;
import java.util.Optional;
import java.util.function.Function;
enum DateFormat {
Iso8601 {
@Override
Function<String, DateTime> getFunction(DateTimeZone timezone) {
Function<String, DateTime> getFunction(String format, DateTimeZone timezone, Locale locale) {
return ISODateTimeFormat.dateTimeParser().withZone(timezone)::parseDateTime;
}
},
Unix {
@Override
Function<String, DateTime> getFunction(DateTimeZone timezone) {
Function<String, DateTime> getFunction(String format, DateTimeZone timezone, Locale locale) {
return (date) -> new DateTime((long)(Float.parseFloat(date) * 1000), timezone);
}
},
UnixMs {
@Override
Function<String, DateTime> getFunction(DateTimeZone timezone) {
Function<String, DateTime> getFunction(String format, DateTimeZone timezone, Locale locale) {
return (date) -> new DateTime(Long.parseLong(date), timezone);
}
@Override
public String toString() {
return "UNIX_MS";
}
},
Tai64n {
@Override
Function<String, DateTime> getFunction(DateTimeZone timezone) {
Function<String, DateTime> getFunction(String format, DateTimeZone timezone, Locale locale) {
return (date) -> new DateTime(parseMillis(date), timezone);
}
@ -67,33 +61,30 @@ enum DateFormat {
long rest = Long.parseLong(date.substring(16, 24), 16);
return ((base * 1000) - 10000) + (rest/1000000);
}
};
abstract Function<String, DateTime> getFunction(DateTimeZone timezone);
static Optional<DateFormat> fromString(String format) {
switch (format) {
case "ISO8601":
return Optional.of(Iso8601);
case "UNIX":
return Optional.of(Unix);
case "UNIX_MS":
return Optional.of(UnixMs);
case "TAI64N":
return Optional.of(Tai64n);
default:
return Optional.empty();
}
}
static Function<String, DateTime> getJodaFunction(String matchFormat, DateTimeZone timezone, Locale locale) {
return DateTimeFormat.forPattern(matchFormat)
},
Joda {
@Override
Function<String, DateTime> getFunction(String format, DateTimeZone timezone, Locale locale) {
return DateTimeFormat.forPattern(format)
.withDefaultYear((new DateTime(DateTimeZone.UTC)).getYear())
.withZone(timezone).withLocale(locale)::parseDateTime;
}
};
@Override
public String toString() {
return name().toUpperCase(Locale.ROOT);
abstract Function<String, DateTime> getFunction(String format, DateTimeZone timezone, Locale locale);
static DateFormat fromString(String format) {
switch (format) {
case "ISO8601":
return Iso8601;
case "UNIX":
return Unix;
case "UNIX_MS":
return UnixMs;
case "TAI64N":
return Tai64n;
default:
return Joda;
}
}
}

13
core/src/main/java/org/elasticsearch/ingest/processor/DateProcessor.java
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@ -22,8 +22,8 @@ package org.elasticsearch.ingest.processor;
import org.elasticsearch.ExceptionsHelper;
import org.elasticsearch.ingest.core.AbstractProcessor;
import org.elasticsearch.ingest.core.AbstractProcessorFactory;
import org.elasticsearch.ingest.core.IngestDocument;
import org.elasticsearch.ingest.core.ConfigurationUtils;
import org.elasticsearch.ingest.core.IngestDocument;
import org.joda.time.DateTime;
import org.joda.time.DateTimeZone;
import org.joda.time.format.ISODateTimeFormat;
@ -33,7 +33,6 @@ import java.util.IllformedLocaleException;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Optional;
import java.util.function.Function;
public final class DateProcessor extends AbstractProcessor {
@ -57,14 +56,8 @@ public final class DateProcessor extends AbstractProcessor {
this.matchFormats = matchFormats;
this.dateParsers = new ArrayList<>();
for (String matchFormat : matchFormats) {
Optional<DateFormat> dateFormat = DateFormat.fromString(matchFormat);
Function<String, DateTime> stringToDateFunction;
if (dateFormat.isPresent()) {
stringToDateFunction = dateFormat.get().getFunction(timezone);
} else {
stringToDateFunction = DateFormat.getJodaFunction(matchFormat, timezone, locale);
}
dateParsers.add(stringToDateFunction);
DateFormat dateFormat = DateFormat.fromString(matchFormat);
dateParsers.add(dateFormat.getFunction(matchFormat, timezone, locale));
}
}

32
core/src/test/java/org/elasticsearch/ingest/processor/DateFormatTests.java
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@ -19,7 +19,6 @@
package org.elasticsearch.ingest.processor;
import org.elasticsearch.ingest.processor.DateFormat;
import org.elasticsearch.test.ESTestCase;
import org.joda.time.DateTime;
import org.joda.time.DateTimeZone;
@ -28,7 +27,6 @@ import java.time.Instant;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;
import java.util.Locale;
import java.util.Optional;
import java.util.function.Function;
import static org.hamcrest.core.IsEqual.equalTo;
@ -36,7 +34,7 @@ import static org.hamcrest.core.IsEqual.equalTo;
public class DateFormatTests extends ESTestCase {
public void testParseJoda() {
Function<String, DateTime> jodaFunction = DateFormat.getJodaFunction("MMM dd HH:mm:ss Z", DateTimeZone.forOffsetHours(-8), Locale.ENGLISH);
Function<String, DateTime> jodaFunction = DateFormat.Joda.getFunction("MMM dd HH:mm:ss Z", DateTimeZone.forOffsetHours(-8), Locale.ENGLISH);
assertThat(Instant.ofEpochMilli(jodaFunction.apply("Nov 24 01:29:01 -0800").getMillis())
.atZone(ZoneId.of("GMT-8"))
.format(DateTimeFormatter.ofPattern("MM dd HH:mm:ss", Locale.ENGLISH)),
@ -44,19 +42,19 @@ public class DateFormatTests extends ESTestCase {
}
public void testParseUnixMs() {
assertThat(DateFormat.UnixMs.getFunction(DateTimeZone.UTC).apply("1000500").getMillis(), equalTo(1000500L));
assertThat(DateFormat.UnixMs.getFunction(null, DateTimeZone.UTC, null).apply("1000500").getMillis(), equalTo(1000500L));
}
public void testParseUnix() {
assertThat(DateFormat.Unix.getFunction(DateTimeZone.UTC).apply("1000.5").getMillis(), equalTo(1000500L));
assertThat(DateFormat.Unix.getFunction(null, DateTimeZone.UTC, null).apply("1000.5").getMillis(), equalTo(1000500L));
}
public void testParseISO8601() {
assertThat(DateFormat.Iso8601.getFunction(DateTimeZone.UTC).apply("2001-01-01T00:00:00-0800").getMillis(), equalTo(978336000000L));
assertThat(DateFormat.Iso8601.getFunction(null, DateTimeZone.UTC, null).apply("2001-01-01T00:00:00-0800").getMillis(), equalTo(978336000000L));
}
public void testParseISO8601Failure() {
Function<String, DateTime> function = DateFormat.Iso8601.getFunction(DateTimeZone.UTC);
Function<String, DateTime> function = DateFormat.Iso8601.getFunction(null, DateTimeZone.UTC, null);
try {
function.apply("2001-01-0:00-0800");
fail("parse should have failed");
@ -68,18 +66,18 @@ public class DateFormatTests extends ESTestCase {
public void testTAI64NParse() {
String input = "4000000050d506482dbdf024";
String expected = "2012-12-22T03:00:46.767+02:00";
assertThat(DateFormat.Tai64n.getFunction(DateTimeZone.forOffsetHours(2)).apply((randomBoolean() ? "@" : "") + input).toString(), equalTo(expected));
assertThat(DateFormat.Tai64n.getFunction(null, DateTimeZone.forOffsetHours(2), null).apply((randomBoolean() ? "@" : "") + input).toString(), equalTo(expected));
}
public void testFromString() {
assertThat(DateFormat.fromString("UNIX_MS"), equalTo(Optional.of(DateFormat.UnixMs)));
assertThat(DateFormat.fromString("unix_ms"), equalTo(Optional.empty()));
assertThat(DateFormat.fromString("UNIX"), equalTo(Optional.of(DateFormat.Unix)));
assertThat(DateFormat.fromString("unix"), equalTo(Optional.empty()));
assertThat(DateFormat.fromString("ISO8601"), equalTo(Optional.of(DateFormat.Iso8601)));
assertThat(DateFormat.fromString("iso8601"), equalTo(Optional.empty()));
assertThat(DateFormat.fromString("TAI64N"), equalTo(Optional.of(DateFormat.Tai64n)));
assertThat(DateFormat.fromString("tai64n"), equalTo(Optional.empty()));
assertThat(DateFormat.fromString("prefix-" + randomAsciiOfLengthBetween(1, 10)), equalTo(Optional.empty()));
assertThat(DateFormat.fromString("UNIX_MS"), equalTo(DateFormat.UnixMs));
assertThat(DateFormat.fromString("unix_ms"), equalTo(DateFormat.Joda));
assertThat(DateFormat.fromString("UNIX"), equalTo(DateFormat.Unix));
assertThat(DateFormat.fromString("unix"), equalTo(DateFormat.Joda));
assertThat(DateFormat.fromString("ISO8601"), equalTo(DateFormat.Iso8601));
assertThat(DateFormat.fromString("iso8601"), equalTo(DateFormat.Joda));
assertThat(DateFormat.fromString("TAI64N"), equalTo(DateFormat.Tai64n));
assertThat(DateFormat.fromString("tai64n"), equalTo(DateFormat.Joda));
assertThat(DateFormat.fromString("prefix-" + randomAsciiOfLengthBetween(1, 10)), equalTo(DateFormat.Joda));
}
}

16
core/src/test/java/org/elasticsearch/ingest/processor/DateProcessorTests.java
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@ -84,6 +84,16 @@ public class DateProcessorTests extends ESTestCase {
}
}
public void testInvalidJodaPattern() {
try {
new DateProcessor(randomAsciiOfLength(10), DateTimeZone.UTC, randomLocale(random()),
"date_as_string", Collections.singletonList("invalid pattern"), "date_as_date");
fail("date processor initialization should have failed");
} catch(IllegalArgumentException e) {
assertThat(e.getMessage(), equalTo("Illegal pattern component: i"));
}
}
public void testJodaPatternLocale() {
DateProcessor dateProcessor = new DateProcessor(randomAsciiOfLength(10), DateTimeZone.forID("Europe/Amsterdam"), Locale.ITALIAN,
"date_as_string", Collections.singletonList("yyyy dd MMM"), "date_as_date");
@ -106,7 +116,7 @@ public class DateProcessorTests extends ESTestCase {
public void testTAI64N() {
DateProcessor dateProcessor = new DateProcessor(randomAsciiOfLength(10), DateTimeZone.forOffsetHours(2), randomLocale(random()),
"date_as_string", Collections.singletonList(DateFormat.Tai64n.toString()), "date_as_date");
"date_as_string", Collections.singletonList("TAI64N"), "date_as_date");
Map<String, Object> document = new HashMap<>();
String dateAsString = (randomBoolean() ? "@" : "") + "4000000050d506482dbdf024";
document.put("date_as_string", dateAsString);
@ -117,7 +127,7 @@ public class DateProcessorTests extends ESTestCase {
public void testUnixMs() {
DateProcessor dateProcessor = new DateProcessor(randomAsciiOfLength(10), DateTimeZone.UTC, randomLocale(random()),
"date_as_string", Collections.singletonList(DateFormat.UnixMs.toString()), "date_as_date");
"date_as_string", Collections.singletonList("UNIX_MS"), "date_as_date");
Map<String, Object> document = new HashMap<>();
document.put("date_as_string", "1000500");
IngestDocument ingestDocument = RandomDocumentPicks.randomIngestDocument(random(), document);
@ -127,7 +137,7 @@ public class DateProcessorTests extends ESTestCase {
public void testUnix() {
DateProcessor dateProcessor = new DateProcessor(randomAsciiOfLength(10), DateTimeZone.UTC, randomLocale(random()),
"date_as_string", Collections.singletonList(DateFormat.Unix.toString()), "date_as_date");
"date_as_string", Collections.singletonList("UNIX"), "date_as_date");
Map<String, Object> document = new HashMap<>();
document.put("date_as_string", "1000.5");
IngestDocument ingestDocument = RandomDocumentPicks.randomIngestDocument(random(), document);