org.elasticsearch.index.mapper.LegacyIpIndexFieldData Maven / Gradle / Ivy
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/*
* Licensed to Elasticsearch 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.mapper;
import org.apache.logging.log4j.Logger;
import org.apache.lucene.document.InetAddressPoint;
import org.apache.lucene.index.DocValues;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.LeafReaderContext;
import org.apache.lucene.index.SortedNumericDocValues;
import org.apache.lucene.search.SortField;
import org.apache.lucene.util.BytesRef;
import org.elasticsearch.common.Nullable;
import org.elasticsearch.common.logging.Loggers;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.fielddata.AtomicFieldData;
import org.elasticsearch.index.fielddata.IndexFieldData;
import org.elasticsearch.index.fielddata.IndexFieldData.XFieldComparatorSource.Nested;
import org.elasticsearch.index.fielddata.ScriptDocValues;
import org.elasticsearch.index.fielddata.SortedBinaryDocValues;
import org.elasticsearch.index.fielddata.fieldcomparator.BytesRefFieldComparatorSource;
import org.elasticsearch.search.MultiValueMode;
import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.nio.ByteBuffer;
final class LegacyIpIndexFieldData implements IndexFieldData {
protected final Index index;
protected final String fieldName;
protected final Logger logger;
LegacyIpIndexFieldData(Index index, String fieldName) {
this.index = index;
this.fieldName = fieldName;
this.logger = Loggers.getLogger(getClass());
}
public String getFieldName() {
return fieldName;
}
public void clear() {
// nothing to do
}
public void clear(IndexReader reader) {
// nothing to do
}
public Index index() {
return index;
}
@Override
public AtomicFieldData load(LeafReaderContext context) {
return new AtomicFieldData() {
@Override
public void close() {
// no-op
}
@Override
public long ramBytesUsed() {
return 0;
}
@Override
public ScriptDocValues getScriptValues() {
throw new UnsupportedOperationException("Cannot run scripts on ip fields");
}
@Override
public SortedBinaryDocValues getBytesValues() {
SortedNumericDocValues values;
try {
values = DocValues.getSortedNumeric(context.reader(), fieldName);
} catch (IOException e) {
throw new IllegalStateException("Cannot load doc values", e);
}
return new SortedBinaryDocValues() {
final ByteBuffer scratch = ByteBuffer.allocate(4);
@Override
public BytesRef valueAt(int index) {
// we do not need to reorder ip addresses since both the numeric
// encoding of LegacyIpFieldMapper and the binary encoding of
// IpFieldMapper match the sort order of ip addresses
long ip = values.valueAt(index);
scratch.putInt(0, (int) ip);
InetAddress inet;
try {
inet = InetAddress.getByAddress(scratch.array());
} catch (UnknownHostException e) {
throw new IllegalStateException("Cannot happen", e);
}
byte[] encoded = InetAddressPoint.encode(inet);
return new BytesRef(encoded);
}
@Override
public void setDocument(int docId) {
values.setDocument(docId);
}
@Override
public int count() {
return values.count();
}
};
}
};
}
@Override
public AtomicFieldData loadDirect(LeafReaderContext context)
throws Exception {
return load(context);
}
@Override
public SortField sortField(@Nullable Object missingValue, MultiValueMode sortMode,
Nested nested, boolean reverse) {
final XFieldComparatorSource source =
new BytesRefFieldComparatorSource(this, missingValue,
sortMode, nested);
return new SortField(getFieldName(), source, reverse);
}
}