/*
* Copyright 2014, Stratio.
*
* Licensed 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.
*/
package com.stratio.cassandra.index.schema.mapping;
import com.google.common.base.Objects;
import org.apache.cassandra.db.marshal.*;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.LongField;
import org.apache.lucene.search.SortField;
import org.apache.lucene.search.SortField.Type;
import org.codehaus.jackson.annotate.JsonCreator;
import org.codehaus.jackson.annotate.JsonProperty;
/**
* A {@link ColumnMapper} to map a long field.
*
* @author Andres de la Pena <adelapena@stratio.com>
*/
public class ColumnMapperLong extends ColumnMapperSingle<Long> {
/** The default boost. */
public static final Float DEFAULT_BOOST = 1.0f;
/** The boost. */
private final Float boost;
/**
* Builds a new {@link ColumnMapperLong} using the specified boost.
*
* @param boost The boost to be used.
*/
@JsonCreator
public ColumnMapperLong(@JsonProperty("boost") Float boost) {
super(new AbstractType<?>[]{AsciiType.instance,
UTF8Type.instance,
Int32Type.instance,
LongType.instance,
IntegerType.instance,
FloatType.instance,
DoubleType.instance,
DecimalType.instance}, new AbstractType[]{LongType.instance});
this.boost = boost == null ? DEFAULT_BOOST : boost;
}
/** {@inheritDoc} */
@Override
public Long indexValue(String name, Object value) {
if (value == null) {
return null;
} else if (value instanceof Number) {
return ((Number) value).longValue();
} else if (value instanceof String) {
String svalue = (String) value;
try {
return Double.valueOf(svalue).longValue();
} catch (NumberFormatException e) {
String message = String.format("Field %s requires a base 10 long, but found \"%s\"", name, svalue);
throw new IllegalArgumentException(message);
}
} else {
String message = String.format("Field %s requires a base 10 long, but found \"%s\"", name, value);
throw new IllegalArgumentException(message);
}
}
/** {@inheritDoc} */
@Override
public Long queryValue(String name, Object value) {
return indexValue(name, value);
}
/** {@inheritDoc} */
@Override
public Field field(String name, Object value) {
Long number = indexValue(name, value);
Field field = new LongField(name, number, STORE);
field.setBoost(boost);
return field;
}
/** {@inheritDoc} */
@Override
public SortField sortField(String field, boolean reverse) {
return new SortField(field, Type.LONG, reverse);
}
/** {@inheritDoc} */
@Override
public Class<Long> baseClass() {
return Long.class;
}
/** {@inheritDoc} */
@Override
public String toString() {
return Objects.toStringHelper(this).add("boost", boost).toString();
}
}