/*
* Licensed to ElasticSearch and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. ElasticSearch 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.
*/
package org.elasticsearch.index.field.data.longs;
import gnu.trove.list.array.TLongArrayList;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.search.FieldCache;
import org.elasticsearch.common.RamUsage;
import org.elasticsearch.common.util.concurrent.ThreadLocals;
import org.elasticsearch.index.field.data.FieldDataType;
import org.elasticsearch.index.field.data.NumericFieldData;
import org.elasticsearch.index.field.data.support.FieldDataLoader;
import org.joda.time.DateTimeZone;
import org.joda.time.MutableDateTime;
import java.io.IOException;
/**
*
*/
public abstract class LongFieldData extends NumericFieldData<LongDocFieldData> {
static final long[] EMPTY_LONG_ARRAY = new long[0];
static final MutableDateTime[] EMPTY_DATETIME_ARRAY = new MutableDateTime[0];
ThreadLocal<ThreadLocals.CleanableValue<MutableDateTime>> dateTimeCache = new ThreadLocal<ThreadLocals.CleanableValue<MutableDateTime>>() {
@Override
protected ThreadLocals.CleanableValue<MutableDateTime> initialValue() {
return new ThreadLocals.CleanableValue<MutableDateTime>(new MutableDateTime(DateTimeZone.UTC));
}
};
protected final long[] values;
protected LongFieldData(String fieldName, long[] values) {
super(fieldName);
this.values = values;
}
@Override
protected long computeSizeInBytes() {
return RamUsage.NUM_BYTES_LONG * values.length + RamUsage.NUM_BYTES_ARRAY_HEADER;
}
public final long[] values() {
return this.values;
}
abstract public long value(int docId);
abstract public long[] values(int docId);
public MutableDateTime date(int docId) {
MutableDateTime dateTime = dateTimeCache.get().get();
dateTime.setMillis(value(docId));
return dateTime;
}
public void date(int docId, MutableDateTime dateTime) {
dateTime.setMillis(value(docId));
}
public abstract MutableDateTime[] dates(int docId);
@Override
public LongDocFieldData docFieldData(int docId) {
return super.docFieldData(docId);
}
@Override
protected LongDocFieldData createFieldData() {
return new LongDocFieldData(this);
}
@Override
public void forEachValue(StringValueProc proc) {
for (int i = 1; i < values.length; i++) {
proc.onValue(Long.toString(values[i]));
}
}
@Override
public String stringValue(int docId) {
return Long.toString(docId);
}
@Override
public byte byteValue(int docId) {
return (byte) value(docId);
}
@Override
public short shortValue(int docId) {
return (short) value(docId);
}
@Override
public int intValue(int docId) {
return (int) value(docId);
}
@Override
public long longValue(int docId) {
return value(docId);
}
@Override
public float floatValue(int docId) {
return (float) value(docId);
}
@Override
public double doubleValue(int docId) {
return (double) value(docId);
}
@Override
public FieldDataType type() {
return FieldDataType.DefaultTypes.LONG;
}
public void forEachValue(ValueProc proc) {
for (int i = 1; i < values.length; i++) {
proc.onValue(values[i]);
}
}
public static interface ValueProc {
void onValue(long value);
}
public abstract void forEachValueInDoc(int docId, ValueInDocProc proc);
public static interface ValueInDocProc {
void onValue(int docId, long value);
void onMissing(int docId);
}
public abstract void forEachValueInDoc(int docId, DateValueInDocProc proc);
public abstract void forEachValueInDoc(int docId, MutableDateTime dateTime, DateValueInDocProc proc);
public static interface DateValueInDocProc {
void onValue(int docId, MutableDateTime dateTime);
}
public static LongFieldData load(IndexReader reader, String field) throws IOException {
return FieldDataLoader.load(reader, field, new LongTypeLoader());
}
static class LongTypeLoader extends FieldDataLoader.FreqsTypeLoader<LongFieldData> {
private final TLongArrayList terms = new TLongArrayList();
LongTypeLoader() {
super();
// the first one indicates null value
terms.add(0);
}
@Override
public void collectTerm(String term) {
terms.add(FieldCache.NUMERIC_UTILS_LONG_PARSER.parseLong(term));
}
@Override
public LongFieldData buildSingleValue(String field, int[] ordinals) {
return new SingleValueLongFieldData(field, ordinals, terms.toArray());
}
@Override
public LongFieldData buildMultiValue(String field, int[][] ordinals) {
return new MultiValueLongFieldData(field, ordinals, terms.toArray());
}
}
}