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Elasticsearch subproject :server
/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.index.fielddata;
import org.elasticsearch.common.FieldMemoryStats;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.io.stream.Writeable;
import org.elasticsearch.common.unit.ByteSizeValue;
import org.elasticsearch.core.Nullable;
import org.elasticsearch.xcontent.ToXContentFragment;
import org.elasticsearch.xcontent.XContentBuilder;
import java.io.IOException;
import java.util.Objects;
public class FieldDataStats implements Writeable, ToXContentFragment {
private static final String FIELDDATA = "fielddata";
private static final String MEMORY_SIZE = "memory_size";
private static final String MEMORY_SIZE_IN_BYTES = "memory_size_in_bytes";
private static final String EVICTIONS = "evictions";
private static final String FIELDS = "fields";
private long memorySize;
private long evictions;
@Nullable
private FieldMemoryStats fields;
public FieldDataStats() {
}
public FieldDataStats(StreamInput in) throws IOException {
memorySize = in.readVLong();
evictions = in.readVLong();
fields = in.readOptionalWriteable(FieldMemoryStats::new);
}
public FieldDataStats(long memorySize, long evictions, @Nullable FieldMemoryStats fields) {
this.memorySize = memorySize;
this.evictions = evictions;
this.fields = fields;
}
public void add(FieldDataStats stats) {
this.memorySize += stats.memorySize;
this.evictions += stats.evictions;
if (stats.fields != null) {
if (fields == null) {
fields = stats.fields.copy();
} else {
fields.add(stats.fields);
}
}
}
public long getMemorySizeInBytes() {
return this.memorySize;
}
public ByteSizeValue getMemorySize() {
return new ByteSizeValue(memorySize);
}
public long getEvictions() {
return this.evictions;
}
@Nullable
public FieldMemoryStats getFields() {
return fields;
}
@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeVLong(memorySize);
out.writeVLong(evictions);
out.writeOptionalWriteable(fields);
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject(FIELDDATA);
builder.humanReadableField(MEMORY_SIZE_IN_BYTES, MEMORY_SIZE, getMemorySize());
builder.field(EVICTIONS, getEvictions());
if (fields != null) {
fields.toXContent(builder, FIELDS, MEMORY_SIZE_IN_BYTES, MEMORY_SIZE);
}
builder.endObject();
return builder;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
FieldDataStats that = (FieldDataStats) o;
return memorySize == that.memorySize && evictions == that.evictions && Objects.equals(fields, that.fields);
}
@Override
public int hashCode() {
return Objects.hash(memorySize, evictions, fields);
}
}