package org.apache.blur.analysis.type;
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import org.apache.blur.thrift.generated.Column;
import org.apache.hadoop.conf.Configuration;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.FieldType;
import org.apache.lucene.document.LongField;
import org.apache.lucene.document.StoredField;
import org.apache.lucene.search.NumericRangeQuery;
import org.apache.lucene.search.Query;
public class DateFieldTypeDefinition extends NumericFieldTypeDefinition {
public static final String TIME_UNIT = "timeUnit";
public static final String DATE_FORMAT = "dateFormat";
public static final String NAME = "date";
private FieldType _typeNotStored;
private ThreadLocal<SimpleDateFormat> _simpleDateFormat;
private TimeUnit _timeUnit = TimeUnit.SECONDS;
@Override
public String getName() {
return NAME;
}
@Override
public void configure(String fieldNameForThisInstance, Map<String, String> properties, Configuration configuration) {
final String dateFormat = properties.get(DATE_FORMAT);
if (dateFormat == null) {
throw new RuntimeException("The property [" + DATE_FORMAT + "] can not be null.");
}
final String timeUnitStr = properties.get(TIME_UNIT);
if (timeUnitStr != null) {
_timeUnit = TimeUnit.valueOf(timeUnitStr.trim().toUpperCase());
}
_simpleDateFormat = new ThreadLocal<SimpleDateFormat>() {
@Override
protected SimpleDateFormat initialValue() {
return new SimpleDateFormat(dateFormat);
}
};
String precisionStepStr = properties.get(NUMERIC_PRECISION_STEP);
if (precisionStepStr != null) {
_precisionStep = Integer.parseInt(precisionStepStr);
_typeNotStored = new FieldType(LongField.TYPE_NOT_STORED);
_typeNotStored.setNumericPrecisionStep(_precisionStep);
_typeNotStored.freeze();
} else {
_typeNotStored = LongField.TYPE_NOT_STORED;
}
}
private long parseDate(String dateStr) {
SimpleDateFormat simpleDateFormat = _simpleDateFormat.get();
try {
Date date = simpleDateFormat.parse(dateStr);
return _timeUnit.convert(date.getTime(), TimeUnit.MILLISECONDS);
} catch (ParseException e) {
throw new RuntimeException(e);
}
}
@Override
public Iterable<? extends Field> getFieldsForColumn(String family, Column column) {
String name = getName(family, column.getName());
long date = parseDate(column.getValue());
LongField field = new LongField(name, date, _typeNotStored);
StoredField storedField = new StoredField(name, column.getValue());
List<Field> fields = new ArrayList<Field>();
fields.add(field);
fields.add(storedField);
return fields;
}
@Override
public Iterable<? extends Field> getFieldsForSubColumn(String family, Column column, String subName) {
String name = getName(family, column.getName(), subName);
long date = parseDate(column.getValue());
return makeIterable(new LongField(name, date, _typeNotStored));
}
@Override
public Query getNewRangeQuery(String field, String part1, String part2, boolean startInclusive, boolean endInclusive) {
long p1 = parseDate(part1);
long p2 = parseDate(part2);
return NumericRangeQuery.newLongRange(field, _precisionStep, p1, p2, startInclusive, endInclusive);
}
}